We propose a new approach for determining the adequate sense of Arabic words. For that, we propose an algorithm based\r\non information retrieval measures to identify the context of use that is the closest to the sentence containing the word to be\r\ndisambiguated. The contexts of use represent a set of sentences that indicates a particular sense of the ambiguous word. These\r\ncontexts are generated using the words that define the senses of the ambiguous words, the exact string-matching algorithm, and\r\nthe corpus. We use the measures employed in the domain of information retrieval, Harman, Croft, and Okapi combined to the\r\nLesk algorithm, to assign the correct sense of those proposed.
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