Approximation algorithms for NP-hard problems
Approximation algorithms for NP-hard problems
The use of MMR, diversity-based reranking for reordering documents and producing summaries
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
Cumulated gain-based evaluation of IR techniques
ACM Transactions on Information Systems (TOIS)
Beyond independent relevance: methods and evaluation metrics for subtopic retrieval
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Relevant document distribution estimation method for resource selection
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Learning to cluster web search results
Proceedings of the 27th annual international ACM SIGIR conference on Research and development in information retrieval
Improving personalized web search using result diversification
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
Novelty and diversity in information retrieval evaluation
Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval
Proceedings of the Second ACM International Conference on Web Search and Data Mining
Portfolio theory of information retrieval
Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval
Central-rank-based collection selection in uncooperative distributed information retrieval
ECIR'07 Proceedings of the 29th European conference on IR research
Exploiting query reformulations for web search result diversification
Proceedings of the 19th international conference on World wide web
Selectively diversifying web search results
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Multi-dimensional search result diversification
Proceedings of the fourth ACM international conference on Web search and data mining
Efficient diversification of web search results
Proceedings of the VLDB Endowment
Intent-aware search result diversification
Proceedings of the 34th international ACM SIGIR conference on Research and development in Information Retrieval
On diversifying and personalizing web search
Proceedings of the 34th international ACM SIGIR conference on Research and development in Information Retrieval
Intent-based diversification of web search results: metrics and algorithms
Information Retrieval
2nd international workshop on diversity in document retrieval (DDR 2012)
Proceedings of the fifth ACM international conference on Web search and data mining
Recent developments in information retrieval
ECIR'2010 Proceedings of the 32nd European conference on Advances in Information Retrieval
Evaluating subtopic retrieval methods: Clustering versus diversification of search results
Information Processing and Management: an International Journal
Personalized diversification of search results
SIGIR '12 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval
Coverage-based search result diversification
Information Retrieval
On the role of novelty for search result diversification
Information Retrieval
Exploiting concept hierarchy for result diversification
Proceedings of the 21st ACM international conference on Information and knowledge management
Modelling efficient novelty-based search result diversification in metric spaces
Journal of Discrete Algorithms
Diversified relevance feedback
Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval
CIDER: Concept-based image diversification, exploration, and retrieval
Information Processing and Management: an International Journal
Diversified query expansion using conceptnet
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
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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 explicitly accounting for the relationship between documents retrieved for the original query and the possible aspects underlying this query, in the form of sub-queries. We evaluate the effectiveness of xQuAD using a standard TREC collection. The results show that our framework markedly outperforms state-of-the-art diversification approaches under a simulated best-case scenario. Moreover, we show that its effectiveness can be further improved by estimating the relative importance of each identified sub-query. Finally, we show that our framework can still outperform the simulated best-case scenario of the state-of-the-art diversification approaches using sub-queries automatically derived from the baseline document ranking itself.