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februari 04, 2007
Smånotiser 20070204
- Daria Sorokina, Johannes Gehrke, Simeon Warner, Paul Ginsparg: Plagiarism Detection in arXiv (publicerad på arXiv)
We describe a large-scale application of methods for finding plagiarism in research document collections. The methods are applied to a collection of 284,834 documents collected by arXiv.org over a 14 year period, covering a few different research disciplines. The methodology efficiently detects a variety of problematic author behaviors, and heuristics are developed to reduce the number of false positives. The methods are also efficient enough to implement as a real-time submission screen for a collection many times larger.
Slutsatsen:
We identified over 500 cases of likely plagiarism from other authors, and additionally over 1000 cases of likely mild plagiarism. These constitute roughly 0.5% of the corpus, and an even smaller percentage of authors, since many come from repeat offenders. Some of the problems are quite serious, and many of the articles are published in conventional venues. None of the plagiarizers, the victims, nor their publishers have yet been notified, hence they remain anonymized here. We can, however, dispel some uncertainty by pointing out that while prominent (highly cited) authors are frequently victimized, they do not appear to reuse text from others.
Man kommer för övrigt fram till att följande 7-gram är de vanligaste fraserna (kanske inte helt förvånande)
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- Den oförliknelige matematikern Doron Zeilberger rasar vidare kring kvaliteten i granskningen (peer-review) i matematiska tidskrifter i Opinion 77: Take This Math Journal and Shove It, Ain't Submitting there No More:
So you submit your latest paper, that you worked so hard on, and are so excited about, and (usually) justly proud of, and six months later (if you are lucky, sometimes it takes a year or longer), you get the referee's (or referees') report(s). With probability 5 percent, it would be a raving acceptance, but more likely, even if it gets accepted, the report would be lukewarm, obnoxious, and often written in sarcastic or patronizing style, that the referee can afford because of his or her anonymity. That report also sometimes contains comments that truly prove that the referee misunderstood the mathematics and the main point.
- Två artiklar om hänthet från Cognitive Daily:
- Chih W. Khoh, Peter Kovesi: Animating Impossible Objects (från augusti 1999):
Three-dimensional models of impossible objects can only be viewed from one angle - otherwise they no longer look impossible. But is it possible to create an interactive impossible object, that is, an impossible object that can be viewed from any angle? This paper explores the creation of such objects on the computer.
- Clive Thompson i Collision Detection: Equation determines Jan. 23 is "worst day of the year". Och jag kan inte annat än att hålla med i hans (här fetmarkerade) slutkläm
Obviously, the variables in the equation are personalized, so Arnall's proclamation of Jan. 23 as the singlemost depressing day might not hold true for you. More obviously yet, this doesn't seem to be even vaguely scientific since Arnall doesn't offer any data to back up his equation, his association with Cardiff University seems to be ungoogleable, and the whole thing smells like a PR endeavour.I still don't care. I am such a sucker for pseudo-precise equations that purport to clarify everyday life.
- Från samma källa och troligen med samma tunga i samma kind: A Nobel Prize adds two years to your life
- En snillrik device för de som ständigt skjuter upp saker (prokrastinatörer) såsom att gå upp på morgonen: The Procastinator’s Clock .
Posted by hakank at februari 4, 2007 11:06 FM Posted to Diverse vetenskap