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Generalizing diversity detection in blog feed retrieval

Mostafa Keikha, Fabio Crestani, Bruce Croft
2013 Proceedings of the 22nd ACM international conference on Conference on information & knowledge management - CIKM '13  
However, existing methods capture the diversity of a blog using post-level properties that limits their application to a specific category of retrieval methods.  ...  The proposed measure enables us to integrate diversity in any existing blog retrieval method.  ...  These methods ignore any specific property of blogs and usually use standard IR techniques to rank blogs. Despite their simplicity, these methods perform fairly well in blog retrieval evaluations.  ... 
doi:10.1145/2505515.2507855 dblp:conf/cikm/KeikhaCC13 fatcat:qwi6pfcqfnappbmp4prh73mvee

TEMPER: A Temporal Relevance Feedback Method [chapter]

Mostafa Keikha, Shima Gerani, Fabio Crestani
2011 Lecture Notes in Computer Science  
An interesting property of blog distillation which differentiates it from traditional retrieval tasks is its dependency on time.  ...  We show performance gains over the baseline techniques which generate a single expanded query using the top retrieved posts or blogs irrespective of time.  ...  These methods ignore any specific property of blogs and mostly use standard IR techniques to rank blogs. Despite their simplicity, these methods perform fairly well in blog retrieval.  ... 
doi:10.1007/978-3-642-20161-5_43 fatcat:hl2be7l5qfcyndsnn2aj5nydoa

Investigation on smoothing and aggregation methods in blog retrieval

Mostafa Keikha
2010 Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval - SIGIR '10  
We use structure based smoothing methods for improving posts retrieval.  ...  First of all, I want to use mentioned properties of blogs to retrieve the most relevant posts for a given query. This part is very similar to the ad hoc retrieval.  ...  In more recent work, in the aggregation part of the problem, we model each post as evidence about relevance of a blog to the query, and use aggregation methods like Ordered Weighted Averaging operators  ... 
doi:10.1145/1835449.1835696 dblp:conf/sigir/Keikha10 fatcat:2owa4brjabfiblahdhbci7z6wi

Effectiveness of Aggregation Methods in Blog Distillation [chapter]

Mostafa Keikha, Fabio Crestani
2009 Lecture Notes in Computer Science  
We show that using only highly relevant evidence (posts) for each blog can result in an effective retrieval system.  ...  We model each post as evidence of the relevance of a blog to the query, and use aggregation methods like Ordered Weighted Averaging operators to combine the evidence.  ...  We also want to thank Amirhossein Malekpour for his great review and comments. This work was supported by Swiss National Science Foundation (SNSF) as XMI project (Project Nr. 200021-117994/1).  ... 
doi:10.1007/978-3-642-04957-6_14 fatcat:xbqdr25i6zffxd66q2jbuq5zt4

Relevance stability in blog retrieval

Mostafa Keikha, Shima Gerani, Fabio Crestani
2011 Proceedings of the 2011 ACM Symposium on Applied Computing - SAC '11  
One of the main features of blogs is their relation to time but this important feature is under-utilized in the current blog retrieval methods.  ...  We propose a probabilistic framework to measure the stability of blogs relevance over time. We then study the effect of the proposed stability measure in the blog retrieval performance.  ...  These methods ignored any specific property of blogs and mostly used standard IR techniques to rank blogs. Despite their simplicity, these methods performed fairly well in blog retrieval.  ... 
doi:10.1145/1982185.1982432 dblp:conf/sac/KeikhaGC11 fatcat:64bo6vdznnhn3hdaejo2hpujuy

Diversity in blog feed retrieval

Mostafa Keikha, Fabio Crestani, W. Bruce Croft
2012 Proceedings of the 21st ACM international conference on Information and knowledge management - CIKM '12  
One of the main properties of blog feed retrieval is that the unit of retrieval is a collection of documents as opposed to a single document as in other IR tasks.  ...  Blog distillation (blog feed retrieval) is a task in blog retrieval where the goal is to rank blogs according to their recurrent relevance to a query topic.  ...  We also like to thank Armita Kaboli for her helpful discussions and comments.  ... 
doi:10.1145/2396761.2396830 dblp:conf/cikm/KeikhaCC12 fatcat:n73qz4mjdbg3vobyjlvuben75e

FEUP at TREC 2008 Blog Track: Using Temporal Evidence for Ranking and Feed Distillation

Sérgio Nunes, Cristina Ribeiro, Gabriel David
2008 Text Retrieval Conference  
We observed small, but statistically significant, improvements in several evaluation measures when temporal information is used.  ...  FEUP participated in two tasks, the baseline adhoc retrieval task and the blog finding distillation task.  ...  Although an important portion of the blog posts in the collection do not contain temporal information (∼40%), we tried to make use of this evidence in two of the Blog Track tasks: adhoc retrieval and blog  ... 
dblp:conf/trec/NunesRD08 fatcat:jy2gazk3ljbjznyqkp6sbdhmye

Linguistic aggregation methods in blog retrieval

Mostafa Keikha, Fabio Crestani
2012 Information Processing & Management  
We show that using only highly relevant evidence (posts) for each blog can result in an effective retrieval system.  ...  We model each post as evidence of the relevance of a blog to the query, and use aggregation methods like Ordered Weighted Averaging (OWA) operators to combine the evidence.  ...  We also want to thank Amirhossein Malekpour for his great review and comments. This work was supported by Swiss National Science Foundation (SNSF) as XMI project (Project Nr. 200021-117994/1).  ... 
doi:10.1016/j.ipm.2011.02.001 fatcat:udji4slxkvdinewe7lx4onahvy

FEUP at TREC 2009 Blog Track: Temporal Evidence in the Faceted Blog Distillation Task

Sérgio Nunes, Cristina Ribeiro, Gabriel David
2009 Text Retrieval Conference  
The approach presented in this paper uses the temporal information available in most individual posts to amplify (or reduce) each post's score.  ...  FEUP participated in the faceted blog distillation task with work focused on the use of temporal features available in the new TREC Blogs08 collection.  ...  Acknowledgments We would like to thank the organizers of the TREC Blog Track, particularly Iadh Ounis, for the prompt feedback provided on several occasions.  ... 
dblp:conf/trec/NunesRD09 fatcat:fk6id5ojurdojjll4czqzc7vvi

Facet Classification of Blogs: Know-Center at the TREC 2009 Blog Distillation Task

Elisabeth Lex, Michael Granitzer, Andreas Juffinger
2009 Text Retrieval Conference  
This index was used to retrieve candidate blogs for the given topics.  ...  The facet identification based on our approach was successful, although a significant number of candidate blogs were not retrieved at all.  ...  Summing up, if we improve our retrieval and ranking, we can definitely improve our results.  ... 
dblp:conf/trec/LexGJ09 fatcat:sv546kk2nbbjfimxtp6mdj7fva

Time-based relevance models

Mostafa Keikha, Shima Gerani, Fabio Crestani
2011 Proceedings of the 34th international ACM SIGIR conference on Research and development in Information - SIGIR '11  
This paper addresses blog feed retrieval where the goal is to retrieve the most relevant blog feeds for a given user query.  ...  In this method, we select terms for expansion using most relevant days for the query, as opposed to most relevant documents. This provide us with more trustable terms for expansion.  ...  While one can use top retrieved posts or blogs as the source of expansion, they have been shown to be not effective in improving the performance of a blog retrieval system [2] .  ... 
doi:10.1145/2009916.2010062 dblp:conf/sigir/KeikhaGC11 fatcat:pxxv26lyy5a5pj4pf47jet7pye

Blogger, stick to your story

Jiyin He, Wouter Weerkamp, Martha Larson, Maarten de Rijke
2008 Proceedings of the second workshop on Analytics for noisy unstructured text data - AND '08  
The proposed models help improve effectiveness of our language modeling approach to the blog distillation task.  ...  Tests performed on the TRECBlog06 corpus show that a naive integration of the coherence score as blog prior fails to achieve performance improvements.  ...  In the work reported here, we use a coherence score to reflect the topical structure of blogs in order to improve retrieval performance.  ... 
doi:10.1145/1390749.1390757 dblp:conf/sigir/HeWLR08 fatcat:kwuy2tr4znfxlf75vzbzpu6yfq

An effective coherence measure to determine topical consistency in user-generated content

Jiyin He, Wouter Weerkamp, Martha Larson, Maarten de Rijke
2009 International Journal on Document Analysis and Recognition  
Retrieval experiments show that integrating the coherence score as a prior in a language modeling-based approach to blog feed search improves retrieval effectiveness.  ...  Consistent with this finding, experiments show that the best retrieval performance is achieved if coherence scores are used when a blog contains more than 20 posts.  ...  Open Access This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided  ... 
doi:10.1007/s10032-009-0089-5 fatcat:ql7sz23vnnc5plpqdbclyq23he

Employing document dependency in blog search

Mostafa Keikha, Fabio Crestani, Mark James Carman
2011 Journal of the American Society for Information Science and Technology  
The goal in blog search is to rank blogs according to their recurrent relevance to the topic of the query. State of the art approaches view it as an expert search or resource selection problem.  ...  In the second, we directly smooth scores for posts using a regularization framework that aims to minimize the discrepancy between scores for similar documents.  ...  These methods ignore any specific property of blogs and usually use standard IR techniques to rank blogs. Despite their simplicity, these methods perform fairly well in blog retrieval.  ... 
doi:10.1002/asi.21687 fatcat:n2qali6tlngbpfm7ewa5c6glcq

University of Lugano at TREC 2008 Blog Track

Shima Gerani, Mostafa Keikha, Mark James Carman, Robert Gwadera, Davide Taibi, Fabio Crestani
2008 Text Retrieval Conference  
We report on the University of Lugano's participation in the Blog track of TREC 2008. In particular we describe our system for performing opinion retrieval and blog distillation.  ...  But we have learned that Blog Distillation performance does not seem to improve when using the information contained in links between posts in a blog data set.  ...  We first used the Terrier Information Retrieval system [14] to index the blog post (permalink) collection.  ... 
dblp:conf/trec/GeraniKCGTC08 fatcat:qu46r6rttvcl5h4bwy73atjkqm
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