منابع مشابه
Automatic Keyword Extraction for News Finder
Newspapers are one of the most challenging domains for information retrieval systems: new articles appear everyday written in different languages, with multimedia contents and the news repositories may be updated in a matter of hours so information extraction is crucial to the metadata contents of the news. Further approaches of “smart retrieval” have to cope with multimedia and multilingual fe...
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We describe an objective and automated technique for detecting clusters of galaxies. This technique is based on the matched-filter technique, using position and apparent magnitude of galaxies simultaneously. Redshift and richness of clusters are estimated as byproducts of detection. We examine accuracies in the estimation of cluster position, redshift, and richness by Monte-Carlo simulations. F...
متن کاملA formula finder for the automatic synthesis of translation algorithms
A system of procedures and computer programs is proposed for the semi-automatic synthesis of Russian-English translation algorithms. For the purposes of automatic formula finding, a large corpus of Russian scientific and technical text may be processed by an automatic Russian-English dictionary, the resulting word-by-word translation postedited according to a systematic procedure, and the final...
متن کاملPeter Mansfield - Nobel Lecture
The topic of magnetic resonance imaging (MRI) started for us at Nottingham in the early summer of 1972. During a discussion with one of my graduate students, Peter Grannell and my post-doc Dr Allan Garroway, concerning multiple-pulse line narrowing experiments in solids, the idea occurred to me to use the line narrowing technique as a means of effectively removing dipolar interactions in a mate...
متن کاملHeinz von Foerster and the Mansfield Amendment
Heinz von Foerster was the founder and director of the Biological Computer Laboratory (BCL) at the University of Illinois in Urbana-Champaign. BCL existed from 1957 to 1976. In 1976 Heinz retired and moved to California. One revealing story about Heinz and the Biological Computer Laboratory concerns the Mansfield Amendment, which led to the closing of BCL. I was a graduate student at the Univer...
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ژورنال
عنوان ژورنال: Nature
سال: 1909
ISSN: 0028-0836,1476-4687
DOI: 10.1038/081456d0