Filters








88,983 Hits in 8.0 sec

The Impact of Document Level Ranking on Focused Retrieval [chapter]

Jaap Kamps, Marijn Koolen
2009 Lecture Notes in Computer Science  
documents by the retrieved elements of the element retrieval approach, and 2) using document level ranking has a positive impact on focused retrieval in Wikipedia, but has more impact on the much longer  ...  document level ranking.  ...  Introduction In this paper we investigate the impact of document ranking for focused retrieval by comparing standard document retrieval systems to element retrieval approaches.  ... 
doi:10.1007/978-3-642-03761-0_15 fatcat:74qurymzgnbbbarh5z5yqgcqm4

Retrieval evaluation on focused tasks

Besnik Fetahu, Ralf Schenkel
2012 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval - SIGIR '12  
Ranking of retrieval systems for focused tasks requires large number of relevance judgments.  ...  Partial measures are taken using relevance judgments, whereas the remaining part of passages are annotated using a generated relevance probability distribution based on result rank.  ...  INTRODUCTION We consider the problem of comparing retrieval systems for focused tasks, where not complete documents, but focused fragments of documents are retrieved.  ... 
doi:10.1145/2348283.2348506 dblp:conf/sigir/FetahuS12 fatcat:hdafwuw5yrg7ljotjldt4klvwm

Focus and Element Length for Book and Wikipedia Retrieval [chapter]

Jaap Kamps, Marijn Koolen
2011 Lecture Notes in Computer Science  
Using the article ranking of an document level run for both document and focused retrieval techniques, we find that focused retrieval techniques clearly outperform document retrieval, especially for the  ...  In the Ad Hoc track we investigate the impact of propagated anchor-text on article level precision and the impact of an element length prior on the within-document precision and recall.  ...  Using the article ranking of an document level run for both document and focused retrieval techniques, we find that focused retrieval techniques clearly outperform document retrieval, especially for the  ... 
doi:10.1007/978-3-642-23577-1_12 fatcat:bcyqz5m2l5bjzjsrsxsaedulyi

UJM at INEX 2008: Pre-impacting of Tags Weights [chapter]

Mathias Géry, Christine Largeron, Franck Thollard
2009 Lecture Notes in Computer Science  
This paper 1 addresses the impact of structure on terms weighting function in the context of focused Information Retrieval (IR).  ...  Experiments on a large collection during INEX 2008 IR competition showed improvements for focused retrieval. 1 This work has been partly funded by the Web Intelligence project (région Rhône-Alpes, cf.  ...  Pre-impacting of tags weights on terms weights Finally, our third aim was to experiment the impact of tag weights in term weighting function in a focused retrieval scheme.  ... 
doi:10.1007/978-3-642-03761-0_5 fatcat:ztiybkliineivlq2fw6n3hilri

Locating relevant text within XML documents

Jaap Kamps, Marijn Koolen, Mounia Lalmas
2008 Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '08  
This paper conducts a comparative analysis of document and element retrieval, highlights the relative strengths and weaknesses of both approaches, and explains the relative effectiveness of document retrieval  ...  Traditional document retrieval has shown to be a competitive approach in XML element retrieval, which is counter-intuitive since the element retrieval task requests all and only relevant document parts  ...  LOCATING RELEVANT DOCUMENTS We investigate the first aspect of focused retrieval: how good are document and element retrieval approaches in finding and ranking relevant documents?  ... 
doi:10.1145/1390334.1390536 dblp:conf/sigir/KampsKL08 fatcat:lgogyfluo5f6zpzafc355fiq4i

Contextualization using hyperlinks and internal hierarchical structure of Wikipedia documents

Muhammad Ali Norozi, Paavo Arvola, Arjen P. de Vries
2012 Proceedings of the 21st ACM international conference on Information and knowledge management - CIKM '12  
This paper proposes various methods of accumulating evidence from the context, and measures the effect of contextual evidence on retrieval effectiveness for document and focused retrieval of hyperlinked  ...  We tested several variants of contextualization and verified notable improvements in comparison with the baseline system and gold standards in the retrieval of full documents and focused elements.  ...  ) and at the XML element level (focused retrieval).  ... 
doi:10.1145/2396761.2396855 dblp:conf/cikm/NoroziAV12 fatcat:gmpjpuxrm5b5hljmsgdp6sf7di

Kinship contextualization

Muhammad A. Norozi, Paavo Arvola
2013 Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval - SIGIR '13  
In this study we hypothesize that the context of an XML-element originated from its preceding and following elements in the sequential ordering of a document improves the quality of retrieval.  ...  We have tested several variants of kinship contextualization and verified notable improvements in comparison with the baseline system and gold standards in the retrieval of focused elements.  ...  We have presented an exploratory study into the use of context from elements in kinship in the hierarchical structure of information, to improve retrieval performance on focused retrieval tasks.  ... 
doi:10.1145/2484028.2484111 dblp:conf/sigir/NoroziA13 fatcat:iwkcznwt2fbdrjqomwlpm77i2a

Focused Search in Books and Wikipedia: Categories, Links and Relevance Feedback [chapter]

Marijn Koolen, Rianne Kaptein, Jaap Kamps
2010 Lecture Notes in Computer Science  
In the Ad Hoc track we investigate focused link evidence, using only links from retrieved sections.  ...  We explore how we can use both types of category information, in the Ad Hoc Track as well as in the Entity Ranking Track.  ...  The link prior has a negative impact on performance of article level runs.  ... 
doi:10.1007/978-3-642-14556-8_28 fatcat:jjnb534ljzh5xnpi22rct53mti

Bibliometric-Enhanced Legal Information Retrieval [chapter]

Gineke Wiggers
2020 Lecture Notes in Computer Science  
This research project addresses user-focused ranking in legal information retrieval (IR).  ...  It studies the perception of relevance of search results for users of Dutch legal IR systems, the employment of usage and citation variables to improve the ranking of search results (bibliometricenhanced  ...  What Is the Appropriate User-Focused Rank Evaluation Metric for Legal IR? One of the challenges for legal information retrieval is finding the correct evaluation metric. This has several causes: 1.  ... 
doi:10.1007/978-3-030-45442-5_83 fatcat:l4qrzlsknffs5n54wdlw5lmnva

Combining Language Models with NLP and Interactive Query Expansion [chapter]

Eric SanJuan, Fidelia Ibekwe-SanJuan
2010 Lecture Notes in Computer Science  
Query topics are expanded using an initial set of Multiword Terms (MWTs) selected from top n ranked documents.  ...  Following our previous participation in INEX 2008 Ad-hoc track, we continue to address both standard and focused retrieval tasks based on comprehensible language models and interactive query expansion  ...  Moreover, on document retrieval, computing MAiP on focused results or on thorough's is equivalent.  ... 
doi:10.1007/978-3-642-14556-8_14 fatcat:wtnvcoqi6zc7vlc4av6w57roj4

Gender Fairness in Information Retrieval Systems

Amin Bigdeli, Negar Arabzadeh, Shirin SeyedSalehi, Morteza Zihayat, Ebrahim Bagheri
2022 Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval  
We present how each of these components can be impacted by or cause intensified biases during retrieval.  ...  documents.  ...  His research work focuses on issues of fairness in information retrieval systems.  ... 
doi:10.1145/3477495.3532680 fatcat:b3wsgn6rzvhdzgjzzceiz64geu

When is the Structural Context Effective?

Muhammad Ali Norozi, Paavo Arvola
2013 Dutch-Belgian Workshop on Information Retrieval  
In focused retrieval, the use of context is a driving force to alleviate or "un-bias" the retrieval of items with varying length.  ...  The question asked here is: why the structural context is important in the retrieval of focused items?  ...  Mainly, retrieval effectiveness at paragraph, article and INEX's focused retrieval level selection has been observed.  ... 
dblp:conf/dir/NoroziA13 fatcat:laana746jzg5taj2z5cpv3xasi

Document Retrieval for Precision Medicine Using a Deep Learning Ensemble Method

Zhiqiang Liu, Jingkun Feng, Zhihao Yang, Lei Wang
2021 JMIR Medical Informatics  
re-rank all the documents from the initial ranking list.  ...  Information retrieval aims to meet this challenge by searching relevant documents from abundant documents based on the given query.  ...  Acknowledgments This work was supported by grant 2016YFC0901902 from the National Key Research and Development Program of China. Conflicts of Interest None declared.  ... 
doi:10.2196/28272 pmid:34185006 fatcat:36l77khdnncn7pngfnolqletnq

Report on INEX 2009

T. Beckers, S. Geva, W.-C. Huang, T. Iofciu, J. Kamps, G. Kazai, M. Koolen, S. Kutty, M. Landoni, M. Lehtonen, V. Moriceau, P. Bellot (+17 others)
2010 SIGIR Forum  
Efficiency Track Investigating the trade-off between effectiveness and efficiency of ranked XML retrieval approaches on real data and real queries.  ...  Link-the-Wiki Track Investigating link discovery between Wikipedia documents, both at the file level and at the element level.  ...  One of the main research questions will be the impact of resource-limitations and effort within focused retrieval.  ... 
doi:10.1145/1842890.1842897 fatcat:46evgkszirdm3grr6fqrtuyqtm

Specificity aboutness in XML retrieval

Tobias Blanke, Mounia Lalmas
2010 Information retrieval (Boston)  
XML retrieval deals with retrieving those document components that specifically answer a query, and filters are a method of delivering the most focused answers.  ...  This paper presents a theoretical methodology to evaluate filters in XML retrieval. Theoretical evaluation is concerned with the formal investigation of qualitative properties of retrieval models.  ...  Acknowledgements Mounia Lalmas is currently funded by Microsoft Research/Royal Academy of Engineering.  ... 
doi:10.1007/s10791-010-9144-6 fatcat:byhosisf4fb3fjajsnxbancaze
« Previous Showing results 1 — 15 out of 88,983 results