Graph-of-word and TW-IDF: new approach to ad hoc IR


In this paper, we introduce novel document representation (graph-of-word) and retrieval model (TW-IDF) for ad hoc IR. Questioning the term independence assumption behind the traditional bag-of-word model, we propose a different representation of a document that captures the relationships between the terms using an unweighted directed graph of terms. From… (More)
DOI: 10.1145/2505515.2505671

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