نتایج جستجو برای: information relevance
تعداد نتایج: 1258260 فیلتر نتایج به سال:
This paper presents our work for the Microblog Track in FIRE 2016. The task involved utilizing microblog data (tweets) to retrieve useful information during times of disasters. In particular, given a set of tweets posted during the Nepal earthquake in 2015, the goal was to judge relevance of each tweet against a set of topics which reflected useful information needs. Our approach made use of ma...
The HARD track of TREC 2004 aims to improve the accuracy of information retrieval through the use of three techniques: (1) query metadata that better describes the information need, (2) focused and time-limited interaction with the searcher through “clarification forms”, and (3) incorporation of passage-level relevance judgments and retrieval. Participation in all three aspects of the track was...
Multi-Context Systems provide a formal basis for the integration of knowledge from different knowledge sources. Yet, it is easy to conceive of applications where not all knowledge sources may be used together all the time. We present a natural extension of Multi-Context Systems by adding the notion of activation rules that allows modeling the applicability or relevance of contexts depending on ...
Collecting relevance judgments (qrels) is an especially challenging part of building an information retrieval test collection. This paper presents a novel method for creating test collections by offering a substitute for relevance judgments. Our method is based on an old idea in IR: a single information need can be represented by many query articulations. We call different articulations of a pa...
The purpose of an information retrieval (IR) system is to help users accomplish a task. IR system evaluation should consider both task success and the value of support given over the entire information seeking episode. Relevance-based measurements fail to address these requirements. In this paper, usefulness is proposed as a basis for IR evaluation.
This paper examines strategic information revelation in a Cournot duopoly with incomplete information about firm 1’s cost and information precision. Firm 2 relies on certifiable and ex post submissions of firm 1, without necessarily knowing whether firm 1 knows its cost or not. The sequential equilibria of the induced communication game are determined for different certifiability possibilities....
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