Extending Text Informativeness Measures to Passage Interestingness Evaluation (Language Model vs. Word Embedding)

• URL: http://arxiv.org/abs/2004.06747v1
• Date: Tue, 14 Apr 2020 18:22:48 GMT
• Title: Extending Text Informativeness Measures to Passage Interestingness Evaluation (Language Model vs. Word Embedding)
• Authors: Carlos-Emiliano Gonz\'alez-Gallardo, Eric SanJuan, Juan-Manuel Torres-Moreno
• Abstract summary: This paper defines the concept of Interestingness as a generalization of Informativeness. We then study the ability of state of the art Informativeness measures to cope with this generalization. We prove that the CLEF-INEX Tweet Contextualization 2012 Logarithm Similarity measure provides best results.
• Score: 1.2998637003026272
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Standard informativeness measures used to evaluate Automatic Text Summarization mostly rely on n-gram overlapping between the automatic summary and the reference summaries. These measures differ from the metric they use (cosine, ROUGE, Kullback-Leibler, Logarithm Similarity, etc.) and the bag of terms they consider (single words, word n-grams, entities, nuggets, etc.). Recent word embedding approaches offer a continuous alternative to discrete approaches based on the presence/absence of a text unit. Informativeness measures have been extended to Focus Information Retrieval evaluation involving a user's information need represented by short queries. In particular for the task of CLEF-INEX Tweet Contextualization, tweet contents have been considered as queries. In this paper we define the concept of Interestingness as a generalization of Informativeness, whereby the information need is diverse and formalized as an unknown set of implicit queries. We then study the ability of state of the art Informativeness measures to cope with this generalization. Lately we show that with this new framework, standard word embeddings outperforms discrete measures only on uni-grams, however bi-grams seems to be a key point of interestingness evaluation. Lastly we prove that the CLEF-INEX Tweet Contextualization 2012 Logarithm Similarity measure provides best results.

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