Summarizing with Roget's and with FrameNet
نویسندگان
چکیده
We submitted runs from two different systems for the update summary task at TAC 2009. The first system refined its use of Roget’s Thesaurus, moving beyond 2008’s semantic relatedness to compute an entropy-based uniqueness measure, with improved results in summary construction. The other system, our first use of deeper semantic knowledge, represents sentences as FrameNet types in a conceptual graph. Pairwise similarity comparisons identify the sentences most central to the document collection content and best candidates for a summary. Our AESOP submission suggests that together, the group of TAC participants tend to select summaryworthy sentences.
منابع مشابه
Mapping Semantic Information from FrameNet onto VALLEX
1. Information on syntactic and semantic properties of verbs, which are traditionally considered as a center of sentence, plays a key role in many rule-based NLP tasks as information retrieval, text summarizing, question answering, machine translation, etc. Lexical resources providing such information are designed, however, within different theoretical frameworks whose theoretical assumptions a...
متن کاملA Comparison of WordNet and Roget's Taxonomy for Measuring Semantic Similarity
This paper presents the results of using Roget's International Thesaurus as the taxonomy in a semantic similarity measurement task. Four similarity metrics were taken from the literature and applied to Roget's. The experimental evaluation suggests that the traditional edge counting approach does surprisingly well (a correlation of r=0.88 with a benchmark set of human similarity judgements, with...
متن کاملEvaluation of Automatic Updates of Roget's Thesaurus
abstract Keywords: lexical resources, Roget's Thesaurus, WordNet, semantic relatedness, synonym selection, pseudo-word-sense disambiguation, analogy Thesauri and similarly organised resources attract increasing interest of Natural Language Processing researchers. Thesauri age fast, so there is a constant need to update their vocabulary. Since a manual update cycle takes considerable time, autom...
متن کاملImage Schemas and Lexicons:
This paper compares the "radial category" of image schemas derived for the polysemous word "over", by Brugman and Lakoff, 1987, with the lexical networks for "over" derived by the author, from Roget's International Thesaurus, 3rd Edition, and The Oxford English Dictionary, 2nd Edition.
متن کاملWord Sense Disambiguation in Roget's Thesaurus Using WordNet
We describe a simple method of disambiguating word senses in Roget's Thesaurus using information about the sense of the word in WordNet. We present a few variations on this method, compare their performance and discuss the results. We explain why this type of disambiguation can be useful.
متن کامل