tag:blogger.com,1999:blog-47352126606675355182023-11-16T06:33:35.764-08:00Ask the Delphic OracleAnand and Ravi's blog for a Times of India Group column, now a spin-off which you can follow along as it merrily meanders through myriads of matters. Now, new and improved with a new focus on Education in general, and Math/Science Education in particular. Themes: Science/Technology, Economics, Mathematics and Innovation. Also featuring discussions with some of the world's leading thinkers on science, technology, economics, and innovation.Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comBlogger302125tag:blogger.com,1999:blog-4735212660667535518.post-15563024495057246232017-02-27T09:42:00.000-08:002017-02-27T09:42:01.342-08:00TECHNOLOGY: Study Shows Google’s Dominance of Online Advertising Old but still good. Via <a href="http://www.technologyreview.com/news/522666/study-shows-googles-dominance-of-online-advertising/">MIT's Technology Review</a>:<br />
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<i>Analysis of the mobile Web browsing habits of over three million people has revealed previously unseen patterns in how the major advertising companies carve up the Internet. Among the findings of a new study is that Google’s advertising tentacles extend to at least 80 percent of online publishers. It also found that if only a small fraction of Web surfers opted out of being shown shown ads based their previous online behavior, it would significantly decrease the industry’s profits.</i> </blockquote>
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<i>The new study was carried out by academics at Stony Brook and Columbia universities, with researchers from two major telcos: AT&T in the U.S. and Telefonica in Spain. They used records of 1.5 billion mobile Web surfing sessions from 2011, supplied by an unidentified mobile network operator, to see which sites people visited and which online ad companies provided ads on those pages.</i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-67320511385338536192017-01-02T11:29:00.000-08:002017-01-02T11:29:00.192-08:00MATHEMATICS: Why Math Classes need a makeoverWhy Math Classes need a makeover:<br />
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<iframe allowfullscreen="" frameborder="0" height="360" mozallowfullscreen="" scrolling="no" src="https://embed-ssl.ted.com/talks/dan_meyer_math_curriculum_makeover.html" webkitallowfullscreen="" width="640"></iframe>Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-32990495776455955212016-12-18T10:50:00.000-08:002016-12-18T10:50:00.202-08:00INNOVATION: Intel tech brings us closer to the world of 'Minority Report'Via <a href="http://www.cnet.com/news/intel-tech-brings-us-closer-to-the-world-of-minority-report/">CNET</a>:<br />
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<i>You've spent years -- decades -- typing on a keyboard and dragging your mouse around to control your computer. Intel wants to radically shake that all up.</i> </blockquote>
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<i>Intel CEO Brian Krzanich on Tuesday offered a glimpse into the company's vision of the near future with demonstrations of cutting-edge technologies, including gesture controls, facial recognition security prompts, drones that know how to move around obstacles and a jacket that can help the visually impaired sense what's around them.</i> </blockquote>
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<i>At the heart of many of the demonstrations during his keynote at the Consumer Electronics Show was Intel's RealSense 3D, the company's depth-sensing camera technology. Intel is banking heavily on the future of RealSense. If successful, it could mean a radical change in how we interact with computers.</i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-84895963174388144262016-11-09T09:59:00.000-08:002016-11-09T09:59:00.248-08:00INNOVATION: Moving over from Silicon Meanwhile, from <a href="http://viterbi.usc.edu/news/news/2014/june-17-2014.htm">the University of Southern California</a>:<br />
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<i>When it comes to electronics, silicon will now have to share the spotlight. In a paper recently published in Nature Communications, researchers from the USC Viterbi School of Engineering describe how they have overcome a major issue in carbon nanotube technology by developing a flexible, energy-efficient hybrid circuit combining carbon nanotube thin film transistors with other thin film transistors. This hybrid could take the place of silicon as the traditional transistor material used in electronic chips, since carbon nanotubes are more transparent, flexible, and can be processed at a lower cost.</i> </blockquote>
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<i>Electrical engineering professor Dr. Chongwu Zhou and USC Viterbi graduate students Haitian Chen, Yu Cao, and Jialu Zhang developed this energy-efficient circuit by integrating carbon nanotube (CNT) thin film transistors (TFT) with thin film transistors comprised of indium, gallium and zinc oxide (IGZO).</i></blockquote>
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Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-35550365949779825562016-10-15T23:23:00.000-07:002016-10-15T23:23:03.206-07:00TECHNOLOGY: Skilled Foreign Workers a Boon to Pay, Study FindsFrom <a href="http://online.wsj.com/news/articles/SB10001424052702303749904579578461727257136">online.wsj.com</a>:<br />
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<i>Want a pay raise? Ask your employer to hire more immigrant scientists.<br />
</i><i><br /></i><i>That's the general conclusion of a study that examined wage data and immigration in 219 metropolitan areas from 1990 to 2010. Researchers found that cities seeing the biggest influx of foreign-born workers in science, technology, engineering and mathematics—the so-called STEM professions—saw wages climb fastest for the native-born, college-educated population.</i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-31988863670747424192016-09-14T23:20:00.000-07:002016-09-14T23:20:00.193-07:00TECHNOLOGY: Stem pipeline problems to aid STEM diversityFrom <a href="http://news.brown.edu/pressreleases/2014/06/stem">news.brown.edu</a>:<br />
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<i>Decades of effort to increase the number of minority students entering the metaphorical science, technology, engineering, and math (STEM) pipeline, haven’t changed this fact: Traditionally underrepresented groups remain underrepresented. In a new paper in the journal BioScience, two Brown University biologists analyze the pipeline’s flawed flow and propose four research-based ideas to ensure that more students emerge from the far end with Ph.D.s and STEM careers.</i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-28769889139842126162016-08-11T11:19:00.000-07:002016-08-11T11:19:02.301-07:00INNOVATION: World’s First Parallel Computer Based on Biomolecular MotorAnd now, news from <a href="https://cfaed.tu-dresden.de/press-releases-201/worlds-first-parallel-computer-based-on-biomolecular-motors">Germany</a>.<br />
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<i>A new parallel-computing approach can solve combinatorial problems, according to a study published in Proceedings of the National Academy of Sciences. Researchers from the Max Planck Institute of Molecular Cell Biology and Genetics and the Dresden University of Technology collaborated with an international team on the technology. The researchers note significant advances have been made in conventional electronic computers in the past decades, but their sequential nature prevents them from solving problems of a combinatorial nature. The number of calculations required to solve such problems grows with the size of the problem, making them intractable for sequential computing. The new approach addresses these issues by combining well-established nanofabrication technology with molecular motors that are very energy-efficient and inherently work in parallel. The researchers demonstrated the parallel-computing approach on a benchmark combinatorial problem that is very difficult to solve with sequential computers. The team says the approach is scalable, error-tolerant, and dramatically improves the time to solve combinatorial problems of size N. The problem to be solved is "encoded" within a network of nanoscale channels by both mathematically designing a geometrical network that is capable of representing the problem, and by fabricating a physical network based on this design using lithography. The network is then explored in parallel by many protein filaments self-propelled by a molecular layer of motor proteins covering the bottom of the channels.</i></blockquote>
Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-39590192654512155302016-07-02T11:17:00.000-07:002016-07-02T11:17:01.536-07:00INNOVATION: Computers read 1.8 billion words of fiction to learn how to anticipate human behaviourMeanwhile at <a href="https://thestack.com/cloud/2016/02/26/computers-read-1-8-billion-words-of-fiction-to-learn-how-to-anticipate-human-behaviour/">Stanford</a>:
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<i>Researchers at Stanford University are using 600,000 fictional stories to inform their new knowledge base called Augur. The team considers the approach to be an easier, more affordable, and more effective way to train computers to understand and anticipate human behavior. Augur is designed to power vector machines in making predictions about what an individual user might be about to do, or want to do next. The system's current success rate is 71 percent for unsupervised predictions of what a user will do next, and 96 percent for recall, or identification of human events. The researchers report dramatic stories can introduce comical errors into a machine-based prediction system. "While we tend to think about stories in terms of the dramatic and unusual events that shape their plots, stories are also filled with prosaic information about how we navigate and react to our everyday surroundings," they say. The researchers note artificial intelligence will need to put scenes and objects into an appropriate context. They say crowdsourcing or similar user-feedback systems will likely be needed to amend some of the more dramatic associations certain objects or situations might inspire.</i></blockquote>
Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-15281046427115761212016-05-30T11:15:00.000-07:002016-05-30T11:15:04.315-07:00INNOVATION: Mathematical model to explain how things go viralInteresting research on virality. At <a href="https://www.abdn.ac.uk/news/8744/">the University of Aberdeen</a>:<br />
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<i>A University of Aberdeen-led research team has developed a model that explains how things go viral in social networks, and it includes the impact of friends and acquaintances in the sudden spread of new ideas. "Mathematical models proposed in the past typically neglected the synergistic effects of acquaintances and were unable to explain explosive contagion, but we show that these effects are ultimately responsible for whether something catches on quickly," says University of Aberdeen researcher Francisco Perez-Reche. The model shows people's opposition to accepting a new idea acts as a barrier to large contagion, until the transmission of the phenomenon becomes strong enough to overcome that reluctance. Although social media makes the explosive contagion phenomenon more apparent in everyday life than ever before, it is the intrinsic value of the idea or product, and whether friends and acquaintances adopt it or not, which remains the crucial factor. The model potentially could be used to address social issues, or by companies to give their product an edge over competitors. "Our conclusions rely on numerical simulations and analytical calculations for a variety of contagion models, and we anticipate that the new understanding provided by our study will have important implications in real social scenarios," Perez-Reche says.</i></blockquote>
Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-29188053769420088982016-04-25T22:20:00.004-07:002016-04-25T22:25:59.366-07:00On the "Smartest Living People in the World"I was lazily whiling my time away on the Internet - a very small bit of time, because I am just very busy these days - and here is something I came across.<br />
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A few comments on the video: it is certainly true that Stephen Hawking is an awe-inspiring figure in academic physics. But to compare him with the other people seems odd. It simply does not do enough justice to the towering achievements of this eminent physicist. Using IQ as a statistical measure hardly does any justice to the scope and depth of Hawking's work. (Indeed, I was trying to impress upon a mathematician friend of mine that intelligence should be viewed as a partial order, not a total order. In that IQ tends to represent intelligence on a flat, linear scale, IQ cannot be used as the only measure of intelligence.) Hawking is the sort of genius whose work cannot be easily compared to that of anyone else, and it is quite wrong headed to even compare him against the others in this list insofar as actual scholarly work is concerned. A second comment would also be in order. Regarding Christopher Langan: I must note a correction to what has been claimed in the video. Langan's work, while done in earnest, does not quite stand up to scholarly scrutiny. Here is my Quora post on the same.<br />
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<span class="rendered_qtext" style="tab-size: 2em;">What does the Theoretic Model of the Universe by Christopher Langan say?</span></h1>
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<span class="feed_item_answer_user" style="display: block; line-height: 1.2em; margin-bottom: 2px;"><span id="ld_qwcwto_62933"><a action_mousedown="UserLinkClickthrough" class="user" href="https://www.quora.com/profile/Anand-Manikutty" id="__w2_oY8KT6w_link" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #333333; font-weight: bold; text-decoration: none;" target="_blank">Anand Manikutty</a><span class="IdentitySig ActorNameSig IdentityNameSig" id="__w2_x1Cgdxa_bio">, <span id="__w2_x1Cgdxa_link"><span class="IdentitySig ActorNameSig IdentityNameSig" id="__w2_x1Cgdxa_sig"><span class="expanded_q_text" id="__w2_fCnYv5G_text_snip" style="-webkit-user-select: auto; tab-size: 2em;"><span id="__w2_fCnYv5G_text_snip_content" style="margin-bottom: 0px; margin-top: 0px;"><span class="rendered_qtext" style="tab-size: 2em;">Independent stats & compsci consultant for companies in finance, s/w & hi tech</span></span></span></span></span></span></span></span><br />
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<span class="inline_editor_value" style="margin-top: 0px;"><span class="rendered_qtext" style="tab-size: 2em;">The Theoretic Model of the Universe by Christopher Langan is supposed to be what the title says - a model of the universe.</span></span></div>
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<span class="inline_editor_value" style="margin-top: 0px;"><span class="rendered_qtext" style="tab-size: 2em;">I have not read the whole thing, but the parts that I went through did not stand up to scholarly scrutiny. In fact, I can say with a great deal of confidence that the Theoretic Model of the Universe (or the Cognitive-Theoretic Model of the Universe) is mistaken from multiple perspectives - physics, and psychology, just to name a couple. Each field has its own episteme. You need to understand the epistemes of a particular field to comment on a work such as this. I can say that based on my knowledge of the fields of physics and psychology that the entire enterprise is misguided to begin with.</span></span></div>
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<span class="inline_editor_value" style="margin-top: 0px;"><span class="rendered_qtext" style="tab-size: 2em;">Wishing Chris Langan the best, of course, in his scholarly pursuits. You never know what may be possible until you try. At least he tried.</span></span></div>
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Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-82321476691712960452016-04-15T10:35:00.000-07:002016-04-15T10:35:01.642-07:00TECHNOLOGY: How Can Supercomputers Survive a Drought?Via <a href="http://www.hpcwire.com/2014/01/26/can-supercomputers-survive-drought/">HPCwire.com</a>:<br />
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<i>Water scarcity has been surfacing as an extremely critical issue worth addressing in the U.S. as well as around the globe nowadays. A McKinsey-led report shows that, by 2030, the global water demand is expected to exceed the supply by 40%. According to another recent report by The Congressional Research Service (CRS), more than 70% of the land area in the U.S. underwent drought condition during August, 2012.<br />
</i><i><br /></i><i>When it comes to 2014, the condition has become even worse in some of the states: following a three-year dry period, California declared state-wide drought emergency. A report by NBC News on this drought quotes California Gov. Jerry Brown as saying, “perhaps the worst drought California has ever seen since records began being kept about 100 years ago”. Many such evidences of extended droughts and water scarcity have undoubtedly necessitated concerted approaches to tackling the global crisis and ensuring water sustainability.<br />
</i><i><br /></i><i>Supercomputers are notorious for consuming a significant amount of electricity, but a less-known fact is that supercomputers are also extremely “thirsty” and consume a huge amount of water to cool down servers through cooling towers that are typically located on the roof of supercomputer facilities. While high-density servers packed in a supercomputer center can save space and/or costs, they also generate a large amount of heat which, if not properly removed, could damage the equipment and result in huge economic losses.<br />
</i><i><br /></i><i>The high heat capacity makes water an ideal and energy-efficient medium to reject server heat into the environment through evaporation, an old yet effective cooling mechanism. According to Amazon’s James Hamilton, a 15MW data center could guzzle up to 360,000 gallons of water per day. The U.S. National Security Agency’s data center in Utah would require up to 1.7 million gallons of water per day, enough to satiate over 10,000 households’ water needs.<br />
</i><i><br /></i><i>Although water consumption is related to energy consumption, they also differ from each other: due to time-varying water efficiency resulting from volatile outside temperatures, the same amount of server energy but consumed at different times may also result in different amount of water evaporation in cooling towers. In addition to onsite cooling towers, the enormous appetite for electricity also holds supercomputers accountable for offsite water consumption embedded in electricity production. As a matter of fact, electricity production accounts for the largest water withdrawal among all sectors in the U.S. While not all the water withdrawal is consumed or “lost” via evaporation, the national average water consumption for just one kWh electricity still reaches 1.8L/kWh, even excluding hydropower which itself is a huge water consumer.</i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-52496276905565646562016-04-08T23:09:00.001-07:002016-04-09T09:40:27.696-07:00RESPONSE: another response to ManivannanSome further comments from the intellectual collective James Bonilla.<br />
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I have a bit more time this week, and I am going to be using my time to analyze Manivannan's paper in a bit more detail.<br />
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Here are some more comments on Manivannan's paper. I am going to go through just a few pages and analyze the sort of stuff I find problematic. Here goes.<br />
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<li><i><u>Line from paper p. 208: </u>"In this article, we will show that the genius of Tamil artists has created all possible shapes on top of the consonants with inherent a, to represent puLLi ( ளி, U+0BCD)." </i></li>
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<li><i><b><u>Comment from Anand M.: </u></b>It is odd to characterize the drawing of a dot in a few different ways as genius.</i></li>
<li><i><i><b><u>Comment from James B.:</u></b> The "genius of Tamil artists"? It is genius to draw a <b>damn</b> dot in <b>five different ways</b>? One with a circular shape, one in the shape of a dot, et cetera. This is what you callin' genius? Bro, you are tryin', you are tryin'. But, boy, you are really reachin'.</i></i></li>
<li><i><i><b><u>Comment from Donald Drumpf:</u></b> This dot... it is a dot. It is a dot. Simple as that. It is not genius. I guarantee it. (We just made this up - Eds.)</i></i></li>
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<li><i><u>Line from paper p. 209: </u>"The sample glyph shows a circle above a character that it is to combine with. The annotation says it is not used in Tamil and an additional annotation saying that the “anusvara should not be confused with the use of a circular glyph for the pulli” has been recently added. In orthographic terms, anusvara belongs to Sanskrit language to represent a Sanskrit based sound using a written form that is characteristic of Devanagari or other scripts designed to represent Sanskrit and related languages. Tamil language does not use anusvara nor does it have a written form for the anusvara.</i>"</li>
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<li><i><b style="text-decoration: underline;">Comment from Anand. M.:</b> There is no reason to say that the Tamil language cannot use the <u>anusvara</u>. I can use the <u>anusvara</u> even in English if I want. I would simply have to define what it means when the <i><u>anusvara</u> </i>circle goes above a character. </i></li>
<li><i><i><b style="text-decoration: underline;">Comment from James B.:</b> Dude, Manivannan. Seriously? You can't be serious. You can't be serious. You are talking about drawing a circle on top of a p? You have issues with dat? You have some serious issues then, pal. Mah buddy here wants to draw a circle on top of a p. I mean - seriously? You are claiming to be serious about all dis, right? What's going on, man? What's going on? Next, you will have problems with me joke about how Chris Christie sat on an iPhone and turned into an iPad. Of course, it is very inappropriate. But it is a joke that is funny in its context. You need to chill out about what people are doing when they draw circles above characters.</i></i></li>
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<li><i><i><u>Line from paper p. 210: </u>"</i></i><i>Usage of diacritics to render foreign sounds, loan words, academic notation, etc., is not a new idea. There have been other proposals to use diacritics to render Sanskrit (Sharma, L2/10256), Hindi (Manikutti, 2012) or other foreign sounds (Sevakumar, 2010) in Tamil using the Tamil character set. However, such usage in random proposals, printed texts or a few other non-standard sources needs to be weighed against standard practices of language community. A rational system of diacritics limited to specialist user groups has its merits as long as the orthographic principles of Tamil are not impacted."</i></li>
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<li><i><b><u>Comment from Anand M.:</u></b> Three comments: (1) there is no impact on said language community because they don't have to use it; (2) said language community cannot be taken to be a homogenous community that is in full agreement with Mr. Manivannan; Or any sort of agreement; (3) the use of diacritics is purely optional. And there are multiple solutions offered that are each quite elegant. (Mr. Sharma has done a good job with his proposal: http://www.unicode.org/L2/L2010/10256-extended-tamil.pdf)</i></li>
<li><i><b><u>Comment from James B.:</u></b> Pretty much what Anand has said. Dude, Manivannan. You are simply refusing to listen to the ideas being expressed here.</i></li>
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Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-46644314833422584512016-04-08T17:57:00.001-07:002016-04-08T18:04:23.833-07:00LANGUAGE: some comments on the proposalSome comments on the proposal:<br />
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(1) <b>Very short learning curve:</b> It should take maybe a couple of minutes for someone who knows both Hindi and Tamil to learn the schema.<br />
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(2) <b>Obvious interpretation:</b> It ought to be obvious even to someone who has never seen the system to interpret the letters in the new system.<br />
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(3) <b>Compliant (technologically) with multiple platforms: </b>this system is very easy to type with on a standard Tamil keyboard. It is also very easy to type with when working with web applications like Quillpad.<br />
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(4) <b>Helpful for minorities:</b> it is very helpful for minority groups; for instance, to be able to avail of social services such as getting prescriptions filled appropriately. (Rather than mess up the name of a medicine; one could write it without loss of fidelity in this system).Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-91184496634234376932016-04-08T17:40:00.001-07:002016-04-09T10:24:02.898-07:00TAMIL 2.0I have here a second proposal for the Tamil language. I call it Tamil 2.0. I also call it "Hispanotamil" and "Hispanic Tamil". Here it is -- in executive summary form.<br />
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The proposal is pretty simple: we propose an extended Tamil alphabet. The proposal maps Devanagari alphasyllabary (that is, the Hindi/Sanskrit alphabet/alphasyllabary/abugida) one-to-one to the extended Tamil alphasyllabary. It works as follows.
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(1) consider the Hindi alphasyllabary. It has two sections: one for the vowels and one for the consonants.
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(2) Let the vowels in Hindi map one-to-one to the existing vowels in Tamil. This mapping remains the same.
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(3) The consonants in Hindi are in two subsections: the first subsection is the famous 5x5 consonant layout of Sanskrit. The second subsection is the remaining consonants: ya, ra, la, va, et cetera.
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(4) Let the consonants in the second subsection map one-to-one to the corresponding consonants in Tamil.
<br />
(5) The leaves the last subsection: the 5x5 grid. This is mapped quite simply as follows:
<br />
(a) use | | to soften a sound.
<br />
(b) use ( ) to retain the existing sound. (Or use nothing.) Note that adding parentheses around an expression in mathematics does not change its value.
<br />
(c) use the consonant "ha" to add the aspirated sound.
<br />
<br />
(6) In addition to this, use the "(" symbol to mimic the "chandra" symbol in Hindi going on top of a character. The "(" after an unmodified Tamil consonant/"a" Tamil letter modifies the sound to "a" as in "cat", and the "(" after a long Tamil consonant/"aa" Tamil letter modifies the sound to "au" as in "caught".<br />
<br />
All this is quite clear from the schema below.
<br />
<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXIh0TEyRjaqXn7dphEdRGxQO9M6Fq20Mal2nEDvaDXytIcRHP3_xzPQ9EA0cV2SlHhcyYNBBB0pDNfY94UoDrYcPO5KEC7-cRonYVD19gBeRTKx2NEwZBVICUNJvLTqrBEg3MxFY7IWo/s1600/Screen+Shot+2016-04-08+at+5.38.10+PM.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="540" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXIh0TEyRjaqXn7dphEdRGxQO9M6Fq20Mal2nEDvaDXytIcRHP3_xzPQ9EA0cV2SlHhcyYNBBB0pDNfY94UoDrYcPO5KEC7-cRonYVD19gBeRTKx2NEwZBVICUNJvLTqrBEg3MxFY7IWo/s640/Screen+Shot+2016-04-08+at+5.38.10+PM.png" width="960" /></a></div>
<br />
<br />
Did not include one thing in the graphic: using the "(" symbol. It is used as below.<br />
<br />
pal = ப( ல்<br />
<br />
pot = பா(ட்<br />
<div>
<br />
Al = அ( ல்<br />
<br />
aught = ஆ( ட்<br />
<br /></div>
<br />
Very simple and very clean.<br /><br /><b><u>Update (April 9, 2016):</u></b> there is one typo in the above graphic. It is the "na" with the three swirls in the third line, not the "na" with the two swirls.Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-81860402745342222032016-04-08T13:19:00.000-07:002016-04-08T13:25:28.557-07:00LANGUAGE: some more screen shotsSome more screen shots to accompany my Tamil paper proposal. Many of them are duplicate views. No harm in posting some extra pictures of the same thing.<br />
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====Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-51627734345433518172016-04-07T12:52:00.000-07:002016-04-08T18:28:06.133-07:00RESPONSE: Response to ManivannanI came across a citation of my paper on the Tamil language on the Internet. I believe that my paper has been improperly cited. So this post is by way of response.<br />
<br />
I am going to request this author to not cite my paper in the future. This is because I don't think he has understood it. Furthermore, I hate to say this, but I don't think he is conducting himself professionally.<br />
<br />
However, given that he has chosen to cite my paper, I would like to respond to Mr. Manivannan (the person who cited my paper but done so improperly). My response has two substantive portions:<br />
<b><br /></b>
<b>(1) Note on manner of academic engagement:</b><br />
<br />
Mr. Manivannan claims to have read our paper (and, therefore, implicitly to have understood it).<br />
<br />
I do not believe, however, that the author of the paper has done two things required to professionally engage with the paper: firstly, to make an attempt to fully understand the paper itself; and secondly, to make an attempt to either understand the mathematics in a paper or report inability to do so. Here is the requisite section of the paper where Mr. Manivannan has attempted to place this paper in the context of other papers, other proposals, et cetera.<br />
<div>
</div>
<br />
<br />
<div class="page" title="Page 3">
<div class="layoutArea">
<div class="column">
<span style="font-family: "times"; font-size: 9.000000pt;">Usage of diacritics to render foreign sounds, loan words, academic notation, etc., is not a new idea. There have been other
proposals to use diacritics to render Sanskrit (Sharma, L2/10256), Hindi (Manikutti, 2012) or other foreign sounds
(Sevakumar, 2010) in Tamil using the Tamil character set. However, such usage in random proposals, printed texts or a few
other non-standard sources needs to be weighed against standard practices of language community. </span></div>
</div>
</div>
<br />
(Simply put: If you do not understand the math, Mr. Manivannan, you should say so. It is okay. It is acceptable to say that you don't understand the math in the paper but that you disagree with it.)<br />
<br />
<b>(2) Notes on the points raised:</b><br />
<br />
(a) Mr. Manivannan has not clarified what his actual point of disagreement with my proposal is.<br />
<br />
(b) In fact, Mr. Manivannan has not clarified what his actual point of disagreement with any of the other proposals, in fact, is. Calling another scholar's work a random proposal -- and clubbing it with other authors as well -- is rank unprofessionalism. I don't even know whether my proposal should be considered under the category of "printed text" or "random proposal".<br />
<br />
(c) There is no indication that Mr. Manivannan has understood any of the mathematics in the paper.<br />
<br />
(d) It is to be noted that, one of the sub-proposals in the paper goes as follows: <i>use such characters as "|", "_", et cetera, to introduce foreign sounds. </i><u style="font-style: italic;">These are already being used in Tamil.</u> So much for lack of conformance with Tamil orthography.<br />
<br />
===<br />
<br />
The only thing I can think of at this point is complete disengagement. Let Mr. Manivannan do what he wants, but he needs to start providing some proof that he understood the math.<br />
<br />
(Btw, at this point, James Bonilla has this to say: "<i>By talking about a paper you clearly don't understood, Mr. Manivannan, you look like a fool. You have clearly not understood the paper. You are clearly dismissing the paper. God! What a jerk!!</i>" Sorry, but those were James B.'s exact words.)<br />
<br />
If Mr. Manivannan so wishes, we can engage on Quora or some platform where a BNBR-type ("Be Nice Be Respectful") norm is enforced by external moderators.<br />
<div>
<br />
===<br />
<br /></div>
<br />Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-88940318842538648902016-03-30T23:34:00.000-07:002016-03-30T23:34:00.955-07:00TECHNOLOGY: Four DARPA projects that could be bigger than the InternetFrom <a href="http://www.defenseone.com/technology/2014/05/four-darpa-projects-could-be-bigger-internet/84856/">DefenseOne</a>:<br />
<blockquote class="tr_bq">
<i>Forty years ago, a group of researchers with military money set out to test the wacky idea of making computers talk to one another in a new way, using digital information packets that could be traded among multiple machines rather than telephonic, point-to-point circuit relays. The project, called ARPANET, went on to fundamentally change life on Earth under its more common name, the Internet.<br />
</i><i><br /></i><i>Today, the agency that bankrolled the Internet is called the Defense Advanced Research Projects Agency, or DARPA, which boasts a rising budget of nearly $3 billion split across 250 programs. They all have national security implications but, like the Internet, much of what DARPA funds can be commercialized, spread and potentially change civilian life in big ways that its originators didn’t conceive.
<br />
<br />
What’s DARPA working on lately that that could be Internet big?</i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-64899720421496466132016-02-03T22:56:00.000-08:002016-02-03T22:56:01.730-08:00INNOVATION: Memory cells built on paperVia <a href="http://spectrum.ieee.org/tech-talk/semiconductors/memory/memory-cells-built-on-paper">IEEE.org</a>:<br />
<div class="p1">
<blockquote>
<i>A team based at the National Taiwan University in Taipei has used a combination of inkjet and screen printing to make small resistive RAM memory cells on paper. These are the first paper-based, nonvolatile memory devices, the team says (nonvolatile means that the device saves its data even when it's powered down). </i> </blockquote>
<blockquote>
<i>As Andrew Steckl outlined in his feature for IEEE Spectrum last year, paper has a lot of potential as a flexible material for printed electronics. The material is less expensive than other flexible materials, such as plastic. It boasts natural wicking properties that can be used to draw fluids into sensors. And it can be easily disposed of by shredding or burning.</i></blockquote>
</div>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-70778522045442410402016-01-26T23:08:00.000-08:002016-01-26T23:08:00.638-08:00TECHNOLOGY: Scheduling algorithms based on game theory makes better use of computational resourcesVia <a href="http://phys.org/news/2014-06-algorithms-based-game-theory-resources.html">Phys.org</a>:<br />
<blockquote class="tr_bq">
<i>Rubing Duan and Xiaorong Li at the A*STAR Institute of High Performance Computing in Singapore and co-workers have now developed a scheme to address the scheduling problem in two large-scale applications: the ASTRO program from the field of cosmology, which simulates the movements and interactions of galaxy clusters, and the WIEK2k program from the field of theoretical chemistry, which calculates the electronic structure of solids1. The researchers' new scheme relies on three game-theory-based scheduling algorithms: one to minimize the execution time; one to reduce the economic cost; and one to limit the storage requirements.<br />
</i><i><br /></i><i>The researchers performed calculations wherein they stopped the competition for resources when the iteration reached the upper limit of optimization. They compared their simulation results with those from related algorithms—namely, Minimum Execution Time, Minimum Completion Time, Opportunistic Load Balancing, Max-min, Min-min and Sufferage. The new approach showed improvements in terms of speed, cost, scheduling results and fairness. Furthermore, the researchers found that the execution time improved as the scale of the experiment increased. In one case, their approach delivered results within 0.3 seconds while other algorithms needed several hours. </i></blockquote>
Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-629398438707748912015-12-31T11:09:00.003-08:002015-12-31T11:19:54.789-08:00Facebook and Free Basics: let us harness the Wisdom of CrowdsThe Wisdom of Crowds is a powerful thing. But in the case of the latest marketing campaign launched by Facebook around Free Basics, it is not quite clear that the wisdom of crowds is coming to the fore. First, some background on <a href="http://phenomena.nationalgeographic.com/2014/04/22/the-wisdom-of-little-crowds/">the Wisdom of Crowds</a>.<br />
<blockquote class="tr_bq">
<i>In 1785, a French mathematician named Marie Jean Antoine Nicolas de Caritat (known as Marquis de Condorcet) used statistics to champion democracy.</i> </blockquote>
<blockquote class="tr_bq">
<i>Democracies are based on the collective decisions of large groups of people. But citizens aren’t experts on every topic, and so they may be prone to errors in the choices they make. And yet, Condorcet argued, it’s possible for a group of error-prone decision-makers to be surprisingly good at picking the best choice.</i> </blockquote>
<blockquote class="tr_bq">
<i>Condorcet’s logic was simple. Assume you have a group of people each independently making a choice about a question. Assume that they have a chance of making the wrong choice–but that their choices are better than random. If the decision they’re trying to make is either thumbs up or thumbs down, for example, their chance of picking the right answer only needs to be greater than 50 percent. The odds that a majority of them will pick the right answer is greater than the odds that any one of them will pick it on their own. What’s more, Condorcet argued that the group’s performance gets even better as its size goes up.</i> </blockquote>
<blockquote class="tr_bq">
<i>Condorcet’s argument is the foundation of what’s now commonly called the “wisdom of crowds.” Individuals who have imperfect understanding of a situation can band together to become good at collective decision-making.</i> </blockquote>
<blockquote class="tr_bq">
<i>There are some famous stories that illustrate the wisdom of crowds. Just over a century ago, Sir Francis Galton asked 787 people to guess the weight of an ox. None of them got the right answer, but, pooled together, their collective guess was almost perfect. In his book, The Wisdom of the Crowds, James Surowiecki<a href="http://www.randomhouse.com/features/wisdomofcrowds/excerpt.html">writes</a> about the game show “Who Wants to Be a Millionaire?” Contestants could get help answering questions either from an individual friend whom they considered an expert, or from a poll of the audience. The majority of the audience picked the right answer 91 percent of the time, while individual friends only did so 65 percent of the time.</i> </blockquote>
<blockquote class="tr_bq">
<i></i><i>Many scientists have used Condorcet’s idea (known as the jury theorem) as a launching pad for exploring collective decision-making. They’ve expanded the basic theory to include more features of crowds–such as the way information can move through them. They’ve tested out versions of the jury theorem on real groups of humans and animals. And their research has shown that crowds really can be wise. People can indeed make better decisions in groups than on their own. And while animals may not be able to pick presidents, they can also make good decisions in groups. It may be hard for an individual fish to recognize a predator in a murky ocean and escape in time. But a school of fish can pool its uncertain information to avoid enemies.</i></blockquote>
<div>
<br />
Case in point: Facebook published some rebuttals to an article by Mahesh Murthy, an Indian VC, and it turned out that there were problems with Facebook's claims and numbers. The Wisdom of Crowds was in full evidence here. Many people managed to spot the problems with Facebook's advertised numbers. (The only notable thing about one of the numbers, 3.2 million petitioners, was how heavily self-selected it turned out to be). Here is an extract from <a href="http://thewire.in/2015/12/30/facebooks-rebuttal-to-mahesh-murthy-on-free-basics-with-replies-18235/">Facebook's rebuttal</a>.<br />
<br />
<i>FACEBOOK’S ADVERTISEMENT CLAIM: In the past several days, 3.2 million people have petitioned the TRAI in support of Free Basics </i><br />
<i><br /> MAHESH WRITES: Let’s again say it for what it is: 3.2 million people out of Facebook’s base of 130 million people who were repeatedly shown a misleading petition by Facebook on top of their pages clicked yes and submit, without being told both sides of the story, and thinking they were doing something for a noble cause, and not to further Facebook’s business strategy. A large number of them, shocked at realizing what they were conned into doing have since said no.
<br /><br /> FACEBOOK SAYS: This is false. Only a small fraction of our 130 million users were notified. We largely provided the notice to people who had previously indicated their support of Free Basics months ago and then notified their friends only if the person showed support once again. And the response rates of support are high compared to average campaigns. There is no evidence that “a large number” of them feel conned. Note: Claims on Twitter about false sends or notifications are disproved by the code – which we will happily supply to TRAI. Our program is benefiting people and we will continue to advocate for its benefits, much like its critics are using their communication channels to make their opinions known.
<br /><br /> MAHESH’S RESPONSE: Thank you for confirming that your Facebook vote-getting effort wasn’t representative, but aimed as you say at only that “small fraction” of your users who had already showed support for Internet.org. In other words, you’d stacked the deck.
So why wouldn’t you say this earlier, and why brandish a number like 3.2 million about that you yourself admit is heavily selection-biased and not representative at all?
</i> <br />
<br />
The Wisdom of Crowds only operates when people have access to all the information. Facebook should be made to run a proper, scientifically accurate campaign on all their claims. They definitely have enough social scientists to be able to do this. Indeed, if they have the resources to marshal 3.2 million people to petition, as they claim, in what turned out to be a scientifically wildly inaccurate campaign, surely, they can marshal the resources for a smaller scientifically accurate campaign. And why not call out the data collection as such (Sample blurbs to accompany their advertised data: "These are not scientifically accurate data" <u>and</u> "This is not a sample of people without selection bias and, therefore, the opinions of the people cannot be considered representative")?</div>
<br />
Here are some further thoughts fro me - based on a Facebook discussion with some friends.<br />
<blockquote class="tr_bq">
In this debate, there are three constituencies/interest groups here:<br />
<br />
(1) Facebook (which incl. the RComm-Facebook JV): they want to offer "so called free internet". In return, they hope to monetise revenue streams arising out of people converting. Their calling the fact that people are converting to a paid Internet a case of "improvement" does not per se make much sense. This is partly because Facebook does not pay taxes in India. This is also partly because people might be paying for a product and not realizing that there may be adverse long-term consequences from the product. (W.r.t FB not paying taxes- it sounds much more like revenues -leaving- the country, and so FB's case would be far more convincing if they agreed to start paying taxes in India and hosted their servers there.) </blockquote>
<blockquote class="tr_bq">
(2) VCs/Net Neutrality activists/developers/et cetera: this consituency wants a "net neutral" solution. Mahesh Murthy has argued their case. </blockquote>
<blockquote class="tr_bq">
(3) Strategy and Policy people: this includes people like myself and James Bonilla (James Bonilla is a pseudonym for a collective of intellectuals, who wish to remain anonymous). What we would like to see is a mix of the two approaches: let Facebook continue to do what they are doing, and then, at a later point, have them submit more convincing numbers in a quarter or two. In the meantime, there is nothing wrong with having Facebook spend a further 100 crores on their marketing campaigns in India. Can't see how it can hurt - given that myself and the caped crusader James Bonilla are watching them closely ;)</blockquote>
In the interest of free speech, Facebook should agree to publish numbers and data on what they are seeing in terms of traffic and uptake - the demographics of the uptake are as important as the sheer numbers themselves - and Facebook should also agree to present data as it emerges not only to TRAI but also to public advocacy forums (such as the "Association for Democratic Reforms", just to pick a name). Indeed, anyone who wants the data should have the ability to access it. A closed discussion without the relevant numbers is no discussion at all.<br />
<br />
The Wisdom of Crowds should be allowed to exercise its power.
Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-20450032002160602902015-11-29T22:52:00.000-08:002015-11-29T22:52:00.199-08:00INNOVATION: Is There a Crisis in Computer-Science Education?From <a href="http://chronicle.com/blogs/data/2014/06/23/is-there-a-crisis-in-computer-science-education/">the Chronicle of Higher Education</a>:<br />
<blockquote class="tr_bq">
<i>Furthermore, to focus only on computer-science majors misses a larger point. As Ms. Raja argues in her essay, simply teaching kids how to code shouldn’t be the only goal. Just as important—or perhaps more so—is teaching kids how to think like a computer programmer—what is called “computational thinking.” She highlights some current efforts to teach computational thinking in elementary and secondary schools, particularly to girls and members of minority groups, who remain woefully underrepresented among computer-science degree-holders and professional computer programmers.<br />
</i><i><br /></i><i>And while teaching computational thinking may result in more computer-science degrees, the more important contribution it will make is giving more people across all fields the ability to solve problems like a computer scientist and to speak the language of computer programming.<br />
</i><i><br /></i><i>As Ms. Raja notes, those are skills everyone should have access to, regardless of their major.
</i></blockquote>
<br />Anonymoushttp://www.blogger.com/profile/01631006183142889561noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-34677332788450065792015-10-23T05:53:00.000-07:002015-10-23T05:53:08.554-07:00World's largest crossword puzzle - puzzle #2 - second screenshot<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh57Wevv91fg86lLawxZnyxLeg2fQEi4iPwcEeejvflOUn5Ei9-3qYWZf30_KxIbGs0Og78OTWPwu9H501YdEl9mo4TByjHYfa70ozAcuvw8Sr5QkrZNd9PJ8x4H6722u3Jeurpr1bTRW4/s1600/Screenshot+2015-10-23+at+5.51.37+AM.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="358" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh57Wevv91fg86lLawxZnyxLeg2fQEi4iPwcEeejvflOUn5Ei9-3qYWZf30_KxIbGs0Og78OTWPwu9H501YdEl9mo4TByjHYfa70ozAcuvw8Sr5QkrZNd9PJ8x4H6722u3Jeurpr1bTRW4/s640/Screenshot+2015-10-23+at+5.51.37+AM.png" width="640" /></a></div>
<br />Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-39256598546953871412015-10-23T05:50:00.002-07:002015-10-23T05:50:46.860-07:00The world's largest crossword puzzle - puzzle #2<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhm7RXefSVZ6cnES5s5-9Nrz9oOmUyO9lSTLFCFNLIvOpN2rq-xRlArByIrN7PXyVdIrpMxhCbEPW03xAb_XBybNXBkZmoEl3XbGflDVezUC16pHkL_O4a6EIOi4ap2Ju51ICOBJ9huz20/s1600/Screenshot+2015-10-23+at+5.49.16+AM.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="356" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhm7RXefSVZ6cnES5s5-9Nrz9oOmUyO9lSTLFCFNLIvOpN2rq-xRlArByIrN7PXyVdIrpMxhCbEPW03xAb_XBybNXBkZmoEl3XbGflDVezUC16pHkL_O4a6EIOi4ap2Ju51ICOBJ9huz20/s640/Screenshot+2015-10-23+at+5.49.16+AM.png" width="640" /></a></div>
<br />Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-15052379173180186602015-10-23T05:47:00.001-07:002015-10-23T05:57:44.717-07:00The world's largest crossword puzzle - puzzle #2Note that, as before, the clue below is also the world's largest crossword puzzle.Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.comtag:blogger.com,1999:blog-4735212660667535518.post-69524473323340901442015-10-23T05:38:00.002-07:002015-10-23T05:57:36.292-07:00The world's longest crossword clue - puzzle #2The world's longest crossword clue series continues.<br />
<br />
Here is another contended for the world's longest crossword clue. This time, there should be no objections.<br />
<br />
1 Ac. In fish's body part, sex appeal. And, in Spain, the number that comes last in the series: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ... <all numbers from 1 to a hundred million> , 100,000,000, .... (8)<br />
<br />
===+===<br />
<br />
Note that you can add as many numbers are you want after the number '10'. So this clue is also as long as you want to make it.<br />
<br />
In fact, you can make the cardinality equal to aleph-naught. Here is a clue for that.<br />
<br />
===+===<br />
1 Ac. In fish's body part, sex appeal. And, in Spain, the number that comes last in the series: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ... <all positive integers included here>. (8)<br />
<br />
Here is how the clue is spewed out.<br />
<br />
You have a machine that spews out the clue, one word (or to be more precise, one token) at a time. The clue itself is infinite in length. Every positive integer will eventually be covered.<br />
<br />
Of course, although the clue is infinite in length, the answer itself is finite in length.Anand Manikuttyhttp://www.blogger.com/profile/13310573347990882985noreply@blogger.com