We present a method for grouping the synonyms of a lemma according to its dictionary senses. The senses are defined by a large machine readable dictionary for French, the TLFi (Trésor de la langue française informatisé) and the synonyms are given by 5 synonym dictionaries (also for French). To evaluate the proposed method, we manually constructed a gold standard where for each (word, definition...

Pattern matching has proven to be a convenient, expressive way of inspecting data. Yet this language feature, in its traditional form, is limited: patterns must be data constructors of concrete data types. No computation or abstraction is allowed. The data type in question must be concrete, with no ability to enforce any invariants. Any change in this data type requires all clients to update th...

Motivation: Documents related to an IR query sometimes contain only the synonyms of the query words instead of the query words themselves. A simple IR system with no knowledge of synonyms fails to recognize the relevance of these documents to the query. So, we can improve recall of IR systems by considering the synonyms of the query words as a part of the IR query. However, only relevant synony...

A particular problem of searching news archives with named entities is that they are very dynamic in appearance compared to other vocabulary terms, and synonym relationships between terms change with time. In previous work, we proposed an approach to extracting time-based synonyms of named entities from the whole history of Wikipedia. In this paper, we present QUEST (Query Expansion using Synon...

Query substitution replaces original query words with a new words that express the same meaning. In this paper, the technique of n-gram analysis is proposed to find the synonyms or quasi-synonyms of the original query word. The synonyms found are then incorporated into the original query with different methods. Experiments show that the proposed n-gram analysis techniques can obtain interesting...