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	<title>Math Drudge &#187; News</title>
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	<link>http://experimentalmath.info/blog</link>
	<description>Two mathematicians contemplate the cosmos</description>
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		<title>Terence Tao releases partial solution to the Goldbach conjecture</title>
		<link>http://experimentalmath.info/blog/2012/05/terence-tao-releases-partial-solution-to-the-goldbach-conjecture/</link>
		<comments>http://experimentalmath.info/blog/2012/05/terence-tao-releases-partial-solution-to-the-goldbach-conjecture/#comments</comments>
		<pubDate>Sat, 12 May 2012 00:38:10 +0000</pubDate>
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		<description><![CDATA[<p>In 1742, German mathematician Christian Goldbach wrote, in a letter to famed mathematician Leonhard Euler, that he believed &#8220;Every integer greater than two can be written as the sum of three primes.&#8221; In subsequent correspondence, the stronger version &#8220;Every even integer can be expressed as the sum of two primes&#8221; was suggested, as well as <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2012/05/terence-tao-releases-partial-solution-to-the-goldbach-conjecture/">Terence Tao releases partial solution to the Goldbach conjecture</a></span>]]></description>
			<content:encoded><![CDATA[<p>In 1742, German mathematician Christian Goldbach wrote, in a letter to famed mathematician Leonhard Euler, that he believed &#8220;Every integer greater than two can be written as the sum of three primes.&#8221; In subsequent correspondence, the stronger version &#8220;Every even integer can be expressed as the sum of two primes&#8221; was suggested, as well as some other variants. The &#8220;odd&#8221; variant of the Goldbach conjecture is that<em> every odd number greater than 7 can be expressed as the sum of three odd primes</em>.</p>
<p>To this date, although extensive computer tests have found no counter-examples to these conjectures, no proofs are known. Deshoulliers, Effinger, te Riele and Zinoviev published a proof of the odd Goldbach conjecture, but it assumed the generalized Riemann hypothesis (another pre-emiment unsolved conjecture of mathematics), and so it is not really a proof of the original conjecture. Collectively these conjectures are among the oldest and most prominent unsolved problems in mathematics.</p>
<p>A few weeks ago (1 Feb 2012), the well-known Australian Fields medalist mathematician Terence Tao posted an <a href="http://arxiv.org/abs/1201.6656">arXiv paper</a> entitled &#8220;<em>Every odd number greater than 1 is the sum of at most five primes</em>.&#8221; The title tells it all. Although numerous weaker results have been published in this area, Tao&#8217;s result, if it survives peer review by highly qualified mathematicians, would clearly be the strongest and most satisfactory yet.</p>
<p>A brief <a href="http://mathworld.wolfram.com/GoldbachConjecture.html">summary of prior results</a> (taken from MathWorld) runs as follows:</p>
<blockquote><p>The conjecture that all <a href="http://mathworld.wolfram.com/OddNumber.html">odd numbers</a> <img src="http://mathworld.wolfram.com/images/equations/GoldbachConjecture/Inline21.gif" alt="&gt;=9" width="22" height="14" border="0" /> are the <a href="http://mathworld.wolfram.com/Sum.html">sum</a> of three <a href="http://mathworld.wolfram.com/OddPrime.html">odd primes</a> is called the &#8220;weak&#8221; Goldbach conjecture. Vinogradov (1937ab, 1954) proved that every <a href="http://mathworld.wolfram.com/SufficientlyLarge.html">sufficiently large</a> <a href="http://mathworld.wolfram.com/OddNumber.html">odd number</a> is the <a href="http://mathworld.wolfram.com/Sum.html">sum</a> of three <a href="http://mathworld.wolfram.com/PrimeNumber.html">primes</a>. (Nagell 1951, p. 66; Guy 1994), and Estermann (1938) proved that almost all <a href="http://mathworld.wolfram.com/EvenNumber.html">even numbers</a> are the sums of two <a href="http://mathworld.wolfram.com/PrimeNumber.html">primes</a>. Vinogradov&#8217;s original &#8220;sufficiently large&#8221; <img src="http://mathworld.wolfram.com/images/equations/GoldbachConjecture/Inline22.gif" alt="N&gt;=3^(3^(15)) approx e^(e^(16.573)) approx 3.25×10^(6846168)" width="206" height="21" border="0" /> was subsequently reduced to <img src="http://mathworld.wolfram.com/images/equations/GoldbachConjecture/Inline23.gif" alt="e^(e^(11.503)) approx 3.33×10^(43000)" width="131" height="21" border="0" /> by Chen and Wang (1989). Chen (1973, 1978) also showed that all sufficiently large <a href="http://mathworld.wolfram.com/EvenNumber.html">even numbers</a> are the sum of a <a href="http://mathworld.wolfram.com/PrimeNumber.html">prime</a> and the <a href="http://mathworld.wolfram.com/Product.html">product</a> of at most two <a href="http://mathworld.wolfram.com/PrimeNumber.html">primes</a> (Guy 1994, Courant and Robbins 1996).</p></blockquote>
<p>Tao presents a short <a href="http://terrytao.wordpress.com/2012/02/01/every-odd-integer-larger-than-1-is-the-sum-of-at-most-five-primes">synopsis</a> of his wonderful result on his blog. He mentions that his paper utilizes the <a href="http://en.wikipedia.org/wiki/Hardy–Littlewood_circle_method">Hardy-Littlewood circle method</a>, one of the most frequently employed techniques of analytic number theory, due to famed British mathematicians G. H. Hardy and J. E. Littlewood in the 1920s, but broadly based on Hardy&#8217;s earlier work with Indian mathematician Srinivasa Ramanujan.</p>
<p>While Terry Tao&#8217;s manuscript includes much impressive analysis of his own, he carefully notes that he relies on the results of numerous other contemporary mathematicians (the bibliography includes 39 references). Among the key results he utilizes are those of Jean Bourgain, Jing Run Chen, Xavier Gourdon, Ming-Chit Liu, Hugh Montgomery, Harmut Siebert, Ivan Vinogradov and Tianze Wang. As Newton, in a moment of unusual candor,  once confessed, &#8220;If I have seen further it is by standing on ye sholders of Giants.&#8221;</p>
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		<title>Endre Szemeredi wins Abel Prize for work in mathematics and computing</title>
		<link>http://experimentalmath.info/blog/2012/03/endre-szemeredi-wins-abel-prize-for-work-in-mathematics-and-computing/</link>
		<comments>http://experimentalmath.info/blog/2012/03/endre-szemeredi-wins-abel-prize-for-work-in-mathematics-and-computing/#comments</comments>
		<pubDate>Thu, 22 Mar 2012 21:46:29 +0000</pubDate>
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		<description><![CDATA[<p>Endre Szemerédi, who has positions both at Rutgers University in the USA, and the Alfréd Rényi Institute of Mathematics in Hungary, has been awarded the 2012 Abel Prize for mathematics.</p> <p>The Abel Prize, which is accompanied by a monetary award of approximately USD$1 million, is widely considered comparable to the Nobel Prize. It has been <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2012/03/endre-szemeredi-wins-abel-prize-for-work-in-mathematics-and-computing/">Endre Szemeredi wins Abel Prize for work in mathematics and computing</a></span>]]></description>
			<content:encoded><![CDATA[<p>Endre Szemerédi, who has positions both at Rutgers University in the USA, and the Alfréd Rényi Institute of Mathematics in Hungary, has been awarded the 2012 <a href="http://www.abelprize.no/">Abel Prize</a> for mathematics.</p>
<p>The Abel Prize, which is accompanied by a monetary award of approximately USD$1 million, is widely considered comparable to the Nobel Prize. It has been granted by the Norwegian Academy of Science and Letters since 2003. It is named for the 19th century Norwegian mathematician Niels Henrik Abel, who did groundbreaking work in algebra and analysis, including the first complete proof that a general fifth degree polynomial is not solvable in terms of radicals.</p>
<p>According to the Abel Prize announcement, Szemerédi was cited &#8220;for his fundamental contributions to discrete mathematics and theoretical computer science.&#8221; His work, in general terms, implies that discrete systems consisting of large numbers of components possess some identifiable structure, even if composed at &#8220;random.&#8221; What&#8217;s more, there are useful aspects of randomness even within systems that are highly structured.</p>
<p>His most famous result establishes the presence of arbitrarily long arithmetic progressions within any set of integers that has nonzero limiting density. This theorem, which Szemerédi proved in 1975, had been an unsolved problem for decades. It was first posed by famed Hungarian mathematicians Paul Turán and Paul Erdös.</p>
<p>Szemerédi has published over 200 papers, spanning five decades. At the age of 71, he continues active research work, and according to colleagues shows no signs of slowing down.</p>
<p>This award continues the Abel Prize committee&#8217;s catholic tradition of recognizing a wide range of mathematical accomplishments, including those that have implications and connections to fields well outside the realm of traditional theoretical mathematical research.  (See <a href="http://en.wikipedia.org/wiki/Abel_Prize">http://en.wikipedia.org/wiki/Abel_Prize</a> for a complete list of Laureates)</p>
<p>For additional details, see <a href="http://news.sciencemag.org/sciencenow/2012/03/endre-szemeredi-wins-maths-biggest.html">Barry Cipra&#8217;s article</a> on the sciencemag.org website, from which some of the above material was excerpted.</p>
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		<title>Computer challenges human crossword puzzle solvers</title>
		<link>http://experimentalmath.info/blog/2012/03/computer-challenges-human-crossword/</link>
		<comments>http://experimentalmath.info/blog/2012/03/computer-challenges-human-crossword/#comments</comments>
		<pubDate>Sat, 17 Mar 2012 17:32:33 +0000</pubDate>
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		<description><![CDATA[<p>Many are familiar with the 1997 defeat of Garry Kasparov, the world&#8217;s reigning chess champion, by IBM&#8217;s &#8220;Deep Blue&#8221; computer [1997 NY Times article]. This feat was hailed as a major milestone in the development of artificially intelligent computer systems.</p> <p>But even this feat was overshadowed by the 2011 defeat of the two most successful <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2012/03/computer-challenges-human-crossword/">Computer challenges human crossword puzzle solvers</a></span>]]></description>
			<content:encoded><![CDATA[<p>Many are familiar with the 1997 defeat of Garry Kasparov, the world&#8217;s reigning chess champion, by IBM&#8217;s &#8220;Deep Blue&#8221; computer [<a href="http://www.nytimes.com/1997/05/12/nyregion/swift-and-slashing-computer-topples-kasparov.html">1997 NY Times article</a>].  This feat was hailed as a major milestone in the development of artificially intelligent computer systems.</p>
<p>But even this feat was overshadowed by the 2011 defeat of the two most successful contestants on the American quiz show Jeopardy!, by a new IBM-developed computer system named &#8220;Watson&#8221; [<a href="http://www.nytimes.com/2011/02/17/science/17jeopardy-watson.html">2011 NY Times article</a>].  As we explained in a previous blog article, the Watson achievement was significantly more impressive than the Deep Blue because it involved &#8220;natural language understanding,&#8221; namely the intelligent &#8220;understanding,&#8221; in some sense, of ordinary English text [<a href="http://experimentalmath.info/blog/2011/02/what-does-watsons-victory-really-mean">Math Drudge blog #1</a>].  Indeed, Watson more than Deep Blue well deserves the assessment of legendary Jeopardy! champ Ken Jennings, who wrote, on his computer tablet conceding victory to Watson, &#8220;I for one welcome our new computer overlords&#8221; [<a href="http://experimentalmath.info/blog/2011/02/ibms-watson-victorious-our-new-computer-overlord">Math Drudge blog #2</a>].</p>
<p>Now computer scientist Matthew Ginsberg has his eye on a similarly challenging problem:  Defeat the world&#8217;s best human crossword puzzle solvers.  Ginsberg, who has received a Ph.D. from Oxford and has written a book on artificial intelligence, is presently the Chief Executive Officer of On Time Systems in Eugene, OR.  He has already tested his computer program, known as &#8220;Dr. Fill,&#8221; in a series of crossword puzzle tournaments, finishing on top in three of 15 contests.</p>
<p>Typical full-size newspaper crossword puzzles have roughly 140 words, and, as in Jeopardy!, the clues are often notoriously subtle.  As an example, in a 2010 <i>New York Times</i> crossword puzzle with the theme &#8220;rabbits,&#8221; the correct answer to clue &#8220;Famous bank robbers&#8221; was &#8220;BUNNYANDCLYDE.&#8221;  As another example, the correct answer for the clue &#8220;Apollo 11 and 12 (180 degrees)&#8221; was &#8220;SNOISSIWNOOW&#8221; (i.e., &#8220;MOON MISSIONS&#8221; written upside down and backwards).</p>
<p>Obviously such machinations require some degree of imagination and creativity.  Or, at the least, the computer program&#8217;s analysis on other, more straightforward, clues must be so strong that it can still complete the puzzle in spite of its failing to &#8220;understand&#8221; some of the most subtle clues.</p>
<p>Will Shortz, tournament director and crossword puzzle editor for the <i>New York Times</i>, who has seen a demonstration of &#8220;Dr. Fill&#8221; in action, believes that the computer program may crush human opponents on easier puzzles.  But on more difficult puzzles, particularly those with many subtle clues, it will be a closer match.</p>
<p>David Ferrucci, leader of IBM&#8217;s Watson project, agrees that &#8220;Games are a great motivator for artificial intelligence &#8212; they push things forward.&#8221;  But he emphasizes that &#8220;what really matters is where it is taking us.&#8221;  He is now involved with an effort to commercialize Watson&#8217;s technology in the health care field.  Perhaps similar applications will be found for Dr. Fill.</p>
<p>For additional details, see a <a href="http://www.nytimes.com/2012/03/17/technology/computer-matching-wits-with-humans-in-crossword-tournament.html">2012 NY Times article</a>, from which some of the above is excerpted.</p>
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		<title>Bailey and Borwein publish new collection of experimental math papers</title>
		<link>http://experimentalmath.info/blog/2012/03/bailey-and-borwein-publish-new-collection-of-experimental-math-papers/</link>
		<comments>http://experimentalmath.info/blog/2012/03/bailey-and-borwein-publish-new-collection-of-experimental-math-papers/#comments</comments>
		<pubDate>Tue, 13 Mar 2012 22:42:12 +0000</pubDate>
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		<description><![CDATA[<p>A collection of papers in the field of computational and experimental mathematics authored by one or both of the present bloggers has now been published by Perfectly Scientific Press.</p> <p>Entitled Exploratory Experimentation in Mathematics: Selected Works, the work collects 16 articles that reflect the changing face of computer-assisted &#8220;high-performance&#8221; mathematics, wherein the computer is increasingly <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2012/03/bailey-and-borwein-publish-new-collection-of-experimental-math-papers/">Bailey and Borwein publish new collection of experimental math papers</a></span>]]></description>
			<content:encoded><![CDATA[<p>A collection of papers in the field of computational and experimental mathematics authored by one or both of the present bloggers has now been published by Perfectly Scientific Press.</p>
<p>Entitled <a href="http://www.perfscipress.com/exploratory-experimentation-in-mathematics-selected-works"> Exploratory Experimentation in Mathematics: Selected Works</a>, the work collects 16 articles that reflect the changing face of computer-assisted &#8220;high-performance&#8221; mathematics, wherein the computer is increasingly utilized as an active agent for exploration and discovery in the world of research mathematics.</p>
<p>Richard E. Crandall, a colleague of the present bloggers and Director of the Center for Advanced Computation at Reed College, comments as follows:</p>
<blockquote><p>
Refreshing always it is to have in hand a book by the pioneers of a given field. David Bailey and Jonathan Borwein have together—and along with illustrious colleagues—built the field of experimental mathematics. In this field one discovers truths in much the same way that new particles can be discovered in a physics laboratory; or in the manner by which DNA was discovered in 1953 to be of helical structure, on the basis of ball-stick models and x-ray data. Whereas Crick and Watson made hay out of their models, and Wilkinson serendipitously interpreted his data, so, too, Bailey and Borwein show how to use numerical tools and intuition to bear mathematical fruit.</p></blockquote>
<p>A PDF copy of the book may be purchased online at <a href="http://www.perfscipress.com/exploratory-experimentation-in-mathematics-selected-works">Perfectly Scientific Press website</a>.</p>
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		<title>Researchers seek UK home for mathematics museum</title>
		<link>http://experimentalmath.info/blog/2012/01/researchers-seek-uk-home-for-mathematics-museum/</link>
		<comments>http://experimentalmath.info/blog/2012/01/researchers-seek-uk-home-for-mathematics-museum/#comments</comments>
		<pubDate>Mon, 30 Jan 2012 22:56:33 +0000</pubDate>
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		<description><![CDATA[<p>Geoff Wain, a mathematics educator at Leeds University, is promoting an initiative to organize a museum of mathematics in the U.K. </p> <p>Wain notes the successful Mathematikum in Giessen, Germany, which opened in 2002 and now attracts 150,000 visitors per year, and the Museum of Mathematics in New York City, which is slated to open <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2012/01/researchers-seek-uk-home-for-mathematics-museum/">Researchers seek UK home for mathematics museum</a></span>]]></description>
			<content:encoded><![CDATA[<p>Geoff Wain, a mathematics educator at Leeds University, is promoting an initiative to organize a museum of mathematics in the U.K.  </p>
<p>Wain notes the successful Mathematikum in Giessen, Germany, which opened in 2002 and now attracts 150,000 visitors per year, and the <a href="http://momath.org">Museum of Mathematics</a> in New York City, which is slated to open later this year.  He asks &#8220;Where would you go to find out about mathematics? &#8230;  There&#8217;s absolutely nowhere in this country.  It&#8217;s very sad.&#8221;</p>
<p>Last week Wain and some supporters gathered at King&#8217;s College to discuss plans for the museum, which is tentatively known as &#8220;MathWorldUK.&#8221;  They hope to provide something for persons of all ages, with a strong focus on interactivity and hands-on experimentation.  Wain notes, &#8220;mathematics as a theoretical thing with no concrete side to it is what can kill it off, I think. &#8230;  Having things you can actually do is really important.&#8221;</p>
<p>For additional details see this <a href="http://www.newscientist.com/blogs/culturelab/2012/01/mathematics-looking-for-a-good-home.html">New Scientist article</a>, from which the above notes were excerpted in part.</p>
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		<title>Jean Bourgain and Terence Tao receive Crafoord Prize in mathematics</title>
		<link>http://experimentalmath.info/blog/2012/01/jean-bourgain-and-terence-tao-receive-crafoord-prize-in-mathematics/</link>
		<comments>http://experimentalmath.info/blog/2012/01/jean-bourgain-and-terence-tao-receive-crafoord-prize-in-mathematics/#comments</comments>
		<pubDate>Fri, 20 Jan 2012 18:07:24 +0000</pubDate>
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		<description><![CDATA[<p>The Royal Swedish Academy of Sciences has awarded the 2012 Crafoord Prize to Jean Bourgain (Institute for Advanced Study, Princeton, USA) and Terence Tao (U.C. Los Angeles) &#8220;for their brilliant and groundbreaking work in harmonic analysis, partial differential equations, ergodic theory, number theory, combinatorics, functional analysis and theoretical computer science&#8221;.</p> <p>As the Crafoord Prize website <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2012/01/jean-bourgain-and-terence-tao-receive-crafoord-prize-in-mathematics/">Jean Bourgain and Terence Tao receive Crafoord Prize in mathematics</a></span>]]></description>
			<content:encoded><![CDATA[<p>The Royal Swedish Academy of Sciences has awarded the 2012 Crafoord Prize to Jean Bourgain (Institute for Advanced Study, Princeton, USA) and Terence Tao (U.C. Los Angeles) &#8220;for their brilliant and groundbreaking work in harmonic analysis, partial differential equations, ergodic theory, number theory, combinatorics, functional analysis and theoretical computer science&#8221;.</p>
<p>As the <a href="http://www.crafoordprize.se/press/arkivpressreleases/thecrafoordprizeinmathematics2012andthecrafoordprizeinastronomy2012.5.6018c17913483dc064280001363.html">Crafoord Prize website</a> explains,</p>
<blockquote><p>
This year´s Crafoord Prize Laureates have solved an impressive number of important problems in mathematics. Their deep mathematical erudition and exceptional problem-solving ability have enabled them to discover many new and fruitful connections and to make fundamental contributions to current research in several branches of mathematics.</p>
<p>On their own and jointly with others, Jean Bourgain and Terence Tao have made important contributions to many fields of mathematics &#8212; from number theory to the theory of non-linear waves. The majority of their most fundamental results are in the field of mathematical analysis. They have developed and used the toolbox of analysis in groundbreaking and surprising ways. Their ability to change perspective and view problems from new angles has led to many remarkable insights, attracting a great deal of attention among researchers worldwide.
</p></blockquote>
<p>Bourgain and Tao will receive an award of SEK 4,000,000 (approximately USD 587,752) in a ceremony to be held in Lund, Sweden on 15 May 2012 hosted by the King and Queen of Sweden.</p>
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		<title>Proposed mathematical journal rating system</title>
		<link>http://experimentalmath.info/blog/2011/11/proposed-mathematical-journal-rating-system/</link>
		<comments>http://experimentalmath.info/blog/2011/11/proposed-mathematical-journal-rating-system/#comments</comments>
		<pubDate>Mon, 21 Nov 2011 04:05:57 +0000</pubDate>
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		<description><![CDATA[<p>In response to the use of citation data in research assessments such as Excellence in Research for Australia, the International Mathematical Union (IMU) and the International Congress on Industrial and Applied Mathematics (ICIAM) are considering producing a mathematics journal rating system to mitigate the exploitation of commercial or national rating methods, see also the 2008 <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2011/11/proposed-mathematical-journal-rating-system/">Proposed mathematical journal rating system</a></span>]]></description>
			<content:encoded><![CDATA[<p>In response to the use of citation data in research assessments such as <a title="ERA" href="http://www.arc.gov.au/era/">Excellence in Research for Australia</a>, the International Mathematical Union (IMU) and the International Congress on Industrial and Applied Mathematics (ICIAM) are considering producing a mathematics journal rating system to mitigate the exploitation of commercial or national rating methods, see also the <a title="cites" href="http://www.mathunion.org/fileadmin/IMU/Report/CitationStatistics.pdf">2008 citations report</a> and  the<a title="report" href="http://www.mathunion.org/fileadmin/CEIC/bestpractice/bpfinal.pdf"> 2010 best practice report</a>.  They write:</p>
<blockquote><p>In implementation of Resolution 18 adopted by the IMU General Assembly in 2010:  &#8221;The General Assembly of the IMU asks the EC to create, in cooperation with ICIAM, a Working Group that is charged with considering whether or not a joint ICIAM/IMU method of ranking mathematical journals should be instituted,  and what other possible options there may be for protecting against the inappropriate use of impact factors and similar manipulable indices for evaluating research.&#8221;</p></blockquote>
<p>They tell us further that</p>
<blockquote><p>The International Mathematical Union and the International Council for Industrial and Applied Mathematics (ICIAM) jointly constituted a Working Group to study the issue of whether and (in the affirmative case) how both organizations should go forward with a Ranking of Mathematical Journals. After discussing the report at ICIAM 2011 in Vancouver IMU and ICIAM decided to start a <a href="http://blog.mathunion.org/rating" target="_blank">blog on mathematical journals</a> which became operational on November 18, 2011. Please consider a contribution to the ongoing discussion.</p></blockquote>
<p>The need for such a listing is increased  by the continuing explosion in the number and diversity of mathematical journals. Obviously high-quality, peer-reviewed journals constitute a very important component of the mathematical research enterprise. <a title="Math Reviews" href="http://www.ams.org/mathscinet/index.html">MathSciNet</a> currently reviews 680 journals cover-to-cover, and another 2000 more selectively. The <a title="ZB" href="http://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;ved=0CB0QFjAA&amp;url=http%3A%2F%2Fwww.zentralblatt-math.org%2Fzmath%2Fen%2F&amp;ei=tM3JTvy7B6njiAKrxIXsDw&amp;usg=AFQjCNHRc3QPqlqbk1Z7S3VVYBSJULkzaw&amp;sig2=-IaPDsyGPTA1uFW5PDHteQ">Zentralblatt Math</a> database indexes papers from more than 3500 journals.</p>
<p>Certainly many of these journals are of high quality and are indispensable to research work. Unfortunately, as the IMU notes there are also some journals which are published with questionable motivations (such a self-advancement)  or which do not rigorously peer-review their submissions, and the recent explosion in mathematical journals has unfortunately included quite a few in this category.</p>
<p>Hence, the IMU and ICIAM are leading an effort to develop a workable ratings system. As stated in the recently released working document, various criteria have been proposed for a ratings system:</p>
<p>1. Quantitative bibliometrics, such as citation counts.<br />
2. Reputation, as determined by surveys.<br />
3. Evaluation of the journal&#8217;s editorial process.</p>
<p>Bibliometrics by themselves are not a reliable indicator of journal quality. Similarly, a ratings system based only on qualitative reputation would not meet standards of objectivity. And it does not seem feasible to obtain or rely on  objective methods to assess the journal&#8217;s editorial and/or refereeing process.</p>
<p>Thus, a more nuanced and modest system is being sought. The current proposal is to form a rating committee with appointees from both IMU and ICIAM to provide rankings. The panel would would start by selecting a list of journals that publish papers primarily in mathematics. The panel members would each then be assigned to evaluate a subset of the journals. When these are complete, the panel would then produce a consensus ratings. The panel would then assign each journal to one of these four categories:</p>
<p>Tier 1: A top journal in mathematics or a major subfield of it. Almost all papers published are of very high quality, and it regularly publishes papers that are of great significance. Peer-review is applied consistently and rigorously, and editorial work is carried out by leading mathematicians.</p>
<p>Tier 2: Very strong journal with a carefully run and reliable peer-review process. Papers are generally of high quality, and regularly papers are published which are of significant importance in at least a subfield of mathematics.</p>
<p>Tier 3: Solid journal that generally publishes reputable work and follows accepted practices of peer review, but are generally less selective than journals of Tier 2, and paper quality is more variable. Such journals may play an important role in specific communities, but are usually not considered highly important to mathematics or a subfield globally.</p>
<p>Tier 4: Journals not found to meet the standards of the other three tiers.</p>
<p>We note that this categorization does not obviate the need to assess individual articles rather than journal but it does avoid many of the pitfalls involved in giving each journal a grade ranging from  `A+` through `F`.   Moreover, as it is clear that such rankings will continue to be be developed and used, it is better they be made by our colleagues rather than by others with other agendas. It is also worth observing that peer review is never compromised by more robust bibliometric data.</p>
<p>Additional information can be obtained from: <a href="http://www.mathunion.org/fileadmin/IMU/Report/WG_JRP_Report_01.pdf">IMU-ICIAM Journal Working Group Preiminary Report</a>.</p>
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		<title>&#8220;Exploratory Experimentation and Computation&#8221; published in AMS Notices</title>
		<link>http://experimentalmath.info/blog/2011/10/exploratory-experimentation-and-computation-published-in-ams-notices/</link>
		<comments>http://experimentalmath.info/blog/2011/10/exploratory-experimentation-and-computation-published-in-ams-notices/#comments</comments>
		<pubDate>Sat, 15 Oct 2011 04:56:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[News]]></category>

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		<description><![CDATA[<p>An article entitled &#8220;Exploratory Experimentation and Computation,&#8221; authored by the present bloggers, has appeared in the November 2011 issue of the Notices of the American Mathematical Society. The full PDF of the article is available Here. The article has been highlighted in a number of press reports, including: LBNL News, Science Daily, Eurekalert, Physorg, Newswise, <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2011/10/exploratory-experimentation-and-computation-published-in-ams-notices/">&#8220;Exploratory Experimentation and Computation&#8221; published in AMS Notices</a></span>]]></description>
			<content:encoded><![CDATA[<p>An article entitled &#8220;Exploratory Experimentation and Computation,&#8221; authored by the present bloggers, has appeared in the November 2011 issue of the <i>Notices of the American Mathematical Society</i>.  The full PDF of the article is available <a href="http://www.ams.org/notices">Here</a>.  The article has been highlighted in a number of press reports, including: <a href="http://www.lbl.gov/cs/Archive/news100411.html">LBNL News</a>, <a href="http://www.sciencedaily.com/releases/2011/10/111013085225.htm">Science Daily</a>, <a href="http://www.eurekalert.org/pub_releases/2011-10/ams-em100511.php">Eurekalert</a>, <a href="http://www.physorg.com/news/2011-10-experimental-mathematics-power-insights.html">Physorg</a>, <a href="http://www.newswise.com/articles/experimental-mathematics-computing-power-leads-to-insights">Newswise</a>, and <a href="http://www.google.com.au/search?q=Borwein+Bailey&#038;ie=UTF-8&#038;oe=UTF-8&#038;hl=en&#038;client=safari#q=Borwein+Bailey&#038;hl=en&#038;client=safari&#038;tbo=d&#038;prmd=ivns&#038;source=lnt&#038;tbs=qdr:w&#038;sa=X&#038;ei=dQ-ZTuWtF4e9iAfk7_2rAg&#038;ved=0CA8QpwUoAw&#038;bav=on.2,or.r_gc.r_pw.r_cp.,cf.osb&#038;fp=2f68e2c240f6cde8&#038;biw=768&#038;bih=916">Others</a>.</p>
<p>Here is an excerpt from the <a href="http://www.lbl.gov/cs/Archive/news100411.html">LBNL News report</a>:</p>
<p>A common misperception is that mathematicians&#8217; work consists entirely of calculations. If that were true, computers would have replaced mathematicians long ago. What mathematicians actually do is to discover and investigate patterns—patterns that arise in numbers, in abstract shapes, in transformations between different mathematical objects, and so on. Studying such patterns requires subtle and sophisticated tools, and, until now, a computer was either too blunt an instrument, or insufficiently powerful, to be of much use in mathematics. But at the same time, the field of mathematics grew and deepened so much that today some questions appear to require additional capabilities beyond the human brain.</p>
<p>&#8220;There is a growing consensus that human minds are fundamentally not very good at mathematics, and must be trained,&#8221; says Bailey. &#8220;Given this fact, the computer can be seen as a perfect complement to humans—we can intuit but not reliably calculate or manipulate; computers are not yet very good at intuition, but are great at calculations and manipulations.&#8221;</p>
<p>Although mathematics is said to be a &#8220;deductive science,&#8221; mathematicians have always used exploration, whether through calculations or pictures, to test ideas and gain intuition, in much the same way that researchers in inductive sciences carry out experiments. Today, this inductive aspect of mathematics has grown through the use of computers, which have vastly increased the amount and type of exploration that can be done. Computers are of course used to ease the burden of lengthy calculations, but they are also used for visualizing mathematical objects, discovering new relationships between such objects, and testing (and especially falsifying) conjectures. A mathematician might also use a computer to explore a result to see whether it is worthwhile to attempt a proof. If it is, then sometimes the computer can give hints about how the proof might proceed. Bailey and Borwein use the term &#8220;experimental mathematics&#8221; to describe these kinds of uses of the computer in mathematics.</p>
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		<title>Borwein gives talk on teaching and learning</title>
		<link>http://experimentalmath.info/blog/2011/09/borwein-to-give-talk-on-teaching-and-learning/</link>
		<comments>http://experimentalmath.info/blog/2011/09/borwein-to-give-talk-on-teaching-and-learning/#comments</comments>
		<pubDate>Thu, 29 Sep 2011 00:17:02 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[News]]></category>

		<guid isPermaLink="false">http://experimentalmath.info/blog/?p=1603</guid>
		<description><![CDATA[<p>Professor Jonathan M. Borwein delivered the keynote talk Teaching and Researching with Collaboration Tools and Technology as part of the 2011 Australian Learning and Teaching Council workshop, &#8220;Effective Teaching, Effective Learning in the Quantitative Disciplines,” held 29-30 Sep 2011 at the University of Wollongong, NSW, Australia. This practical, hands-on and interactive workshop immediately followed the <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2011/09/borwein-to-give-talk-on-teaching-and-learning/">Borwein gives talk on teaching and learning</a></span>]]></description>
			<content:encoded><![CDATA[<p>Professor Jonathan M. Borwein  delivered the keynote talk <a href="http://www.carma.newcastle.edu.au/~jb616/aces11.pdf">Teaching and Researching with Collaboration Tools and Technology</a> as part of the 2011 Australian Learning and Teaching Council workshop, &#8220;Effective Teaching, Effective Learning in the Quantitative Disciplines,”  held 29-30 Sep 2011 at the University of Wollongong, NSW, Australia. This practical, hands-on and interactive workshop immediately followed the Australian Mathematical Society 55th Annual Meeting at the University of Wollongong (26-29 September, 2011). It has been designed specifically for lecturers and tutors teaching in the quantitative disciplines.</p>
<p>Additional details can be found at ALTC Workshop website.</p>
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		<title>Magic numbers</title>
		<link>http://experimentalmath.info/blog/2011/08/magic-numbers/</link>
		<comments>http://experimentalmath.info/blog/2011/08/magic-numbers/#comments</comments>
		<pubDate>Tue, 23 Aug 2011 19:13:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Essays]]></category>
		<category><![CDATA[News]]></category>

		<guid isPermaLink="false">http://experimentalmath.info/blog/?p=1542</guid>
		<description><![CDATA[<p>The Conversation, an online forum from the Australian academic research community and aimed at the interested public, has featured an essay written by the present bloggers. Entitled &#8220;Magic numbers: the beauty of decimal notation,&#8221; it is available here: Conversation article.</p> <p>This piece briefly mentions the history of positional decimal arithmetic, from its original discovery by <span style="color:#777"> . . . &#8594; Read More: <a href="http://experimentalmath.info/blog/2011/08/magic-numbers/">Magic numbers</a></span>]]></description>
			<content:encoded><![CDATA[<p><em>The Conversation</em>, an online forum from the Australian academic research community and aimed at the interested public, has featured an essay written by the present bloggers. Entitled &#8220;Magic numbers: the beauty of decimal notation,&#8221; it is available here: <a href="http://theconversation.edu.au/magic-numbers-the-beauty-of-decimal-notation-2538">Conversation article</a>.</p>
<p>This piece briefly mentions the history of positional decimal arithmetic, from its original discovery by unknown Indian mathematicians approximately 2000 years ago, to its modern incarnation (at least in binary) in computers. The article then speculates how history may have changed if either arithmetic had been discovered earlier, or it had been communicated to Greek mathematicians such as Archimedes.</p>
<p>It is based on an earlier blog by the present authors, available here: <a href="http://experimentalmath.info/blog/2011/07/what-if-base-10-arithmetic-had-been-discovered-earlier">Math Drudge blog</a>. This in turn has been cited by <a title="National Public Radio" href="http://www.scpr.org/news/2011/08/22/28369/the-trouble-with-trillions/">NPR</a> in a discussion of the current  economy.</p>
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