Beta-decay half-lives of very neutron rich Ni, Co, Fe isotopes produced by thermal fission of $^{235}$U and $^{239}$Pu - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Year : 1990

Beta-decay half-lives of very neutron rich Ni, Co, Fe isotopes produced by thermal fission of $^{235}$U and $^{239}$Pu

Abstract

We study the influence of lexical subsumption on the semantic proximity of terms. By studying the semantic relation between lexically subsumed terms in an existing controlled vocabulary and those in a corpus, we formulate hypotheses on the underlying specific relations. These hypotheses enable us to propose an ordering of term variants found in the corpus, by probability of decreasing semantic proximity. Results from our experiment show that surface indices like the presence of proper names, compounds and the number of added words in a term variant are criteria for ordering the variants of the same term. The ranking obtained will enable us to form more semantically-cohesive clusters. Applications targeted are text mining, question-answering and science and technology watch.
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in2p3-00004597 , version 1 (04-04-2000)

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  • HAL Id : in2p3-00004597 , version 1

Cite

M. Bernas, P. Ambruster, J.P. Bocquet, R. Brissot, H. Faust, et al.. Beta-decay half-lives of very neutron rich Ni, Co, Fe isotopes produced by thermal fission of $^{235}$U and $^{239}$Pu. Mikolajki Summer School on Nuclear Physics 21, Aug 1990, Mikolajki, Poland. pp.32-40. ⟨in2p3-00004597⟩
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