منابع مشابه
Aggregated Search Result Diversification
Search result diversification has been effectively employed to tackle query ambiguity, particularly in the context of web search. However, ambiguity can manifest differently in different search verticals, with ambiguous queries spanning, e.g., multiple place names, content genres, or time periods. In this paper, we empirically investigate the need for diversity across four different verticals o...
متن کاملSearch Result Diversification
Ranking in information retrieval has been traditionally approached as a pursuit of relevant information, under the assumption that the users’ information needs are unambiguously conveyed by their submitted queries. Nevertheless, as an inherently limited representation of a more complex information need, every query can arguably be considered ambiguous to some extent. In order to tackle query am...
متن کاملResult Diversification for Tweet Search
Being one of the most popular microblogging platforms, Twitter handles more than two billion queries per day. Given the users’ desire for fresh and novel content but their reluctance to submit long and descriptive queries, there is an inevitable need for generating diversified search results to cover different aspects of a query topic. In this paper, we address diversification of results in twe...
متن کاملExplicit Search Result Diversification through Sub-queries
Queries submitted to a retrieval system are often ambiguous. In such a situation, a sensible strategy is to diversify the ranking of results to be retrieved, in the hope that users will find at least one of these results to be relevant to their information need. In this paper, we introduce xQuAD, a novel framework for search result diversification that builds such a diversified ranking by expli...
متن کاملSearch Result Diversification Methods to Assist Lexicographers
We show how the lexicographic task of finding informative and diverse example sentences can be cast as a search result diversification problem, where an objective based on relevance and diversity is maximized. This problem has been studied intensively in the information retrieval community during recent years, and efficient algorithms have been devised. We finally show how the approach has been...
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ژورنال
عنوان ژورنال: Foundations and Trends® in Information Retrieval
سال: 2015
ISSN: 1554-0669,1554-0677
DOI: 10.1561/1500000040