Document (#42419)

Author

González-Ibáñez, R.
Esparza-Villamán, A.
Vargas-Godoy, J.C.
Shah, C.

Title

¬A comparison of unimodal and multimodal models for implicit detection of relevance in interactive IR

Source

Journal of the Association for Information Science and Technology. 70(2019) no.11, S.1223-1235

Year

2019

Abstract

Implicit detection of relevance has been approached by many during the last decade. From the use of individual measures to the use of multiple features from different sources (multimodality), studies have shown the feasibility to automatically detect whether a document is relevant. Despite promising results, it is not clear yet to what extent multimodality constitutes an effective approach compared to unimodality. In this article, we hypothesize that it is possible to build unimodal models capable of outperforming multimodal models in the detection of perceived relevance. To test this hypothesis, we conducted three experiments to compare unimodal and multimodal classification models built using a combination of 24 features. Our classification experiments showed that a univariate unimodal model based on the left-click feature supports our hypothesis. On the other hand, our prediction experiment suggests that multimodality slightly improves early classification compared to the best unimodal models. Based on our results, we argue that the feasibility for practical applications of state-of-the-art multimodal approaches may be strongly constrained by technology, cultural, ethical, and legal aspects, in which case unimodality may offer a better alternative today for supporting relevance detection in interactive information retrieval systems.

Content

Vgl.: https://asistdl.onlinelibrary.wiley.com/doi/10.1002/asi.24202.

Theme

Retrievalalgorithmen

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5. Hawes, T.; Lin, J.; Resnik, P.: Elements of a computational model for multi-party discourse : the turn-taking behavior of Supreme Court justices (2009) 0.14

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