Acquiring Lexical Paraphrases from a Single Corpus

TL;DR

This paper introduces a novel method for extracting lexical paraphrases, specifically verb paraphrases, from a single corpus without relying on comparable corpora or prior structure, enhancing paraphrase detection capabilities.

Contribution

The paper presents a new approach that detects isolated lexical paraphrases within a single corpus, bypassing the need for comparable corpora or pre-existing structural information.

Findings

Instance-based approach can be combined with vector-based methods.

Method effectively detects isolated verb paraphrases.

Potential for improved paraphrase likelihood assessment.

Abstract

This paper studies the potential of identifying lexical paraphrases within a single corpus, focusing on the extraction of verb paraphrases. Most previous approaches detect individual paraphrase instances within a pair (or set) of comparable corpora, each of them containing roughly the same information, and rely on the substantial level of correspondence of such corpora. We present a novel method that successfully detects isolated paraphrase instances within a single corpus without relying on any a-priori structure and information. A comparison suggests that an instance-based approach may be combined with a vector based approach in order to assess better the paraphrase likelihood for many verb pairs.