Filters








213 Hits in 4.6 sec

Bloggers as experts

Krisztian Balog, Maarten de Rijke, Wouter Weerkamp
2008 Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '08  
We adopt two language modelingbased approaches to expert finding, and determine their effectiveness as feed distillation strategies.  ...  We address the task of (blog) feed distillation: to find blogs that are principally devoted to a given topic. The task may be viewed as an association finding task, between topics and bloggers.  ...  MODELING FEED DISTILLATION In modeling feed distillation we consider the Blogger model and the Posting model.  ... 
doi:10.1145/1390334.1390486 dblp:conf/sigir/BalogRW08 fatcat:4pqyzxmzpbbtdd6lewysd55npa

Key blog distillation

Craig Macdonald, Iadh Ounis
2008 Proceeding of the 17th ACM conference on Information and knowledge mining - CIKM '08  
Using the TREC 2007 Blog dataset, the results show that our proposed expert search paradigm is indeed useful in identifying key bloggers, achieving high retrieval effectiveness.  ...  However, a main difference of this blog distillation task from normal adhoc or Web document retrieval is that each blog can be seen as an aggregate of its constituent posts.  ...  Thirdly, we investigate how several intuitions about blog-specific evidence can be modelled and integrated into the proposed retrieval approach, such as the central interests of a blogger, whether an interest  ... 
doi:10.1145/1458082.1458221 dblp:conf/cikm/MacdonaldO08 fatcat:p26mttd7o5cfhpxmhwhi6ni4x4

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  
The goal of a blog retrieval system is to retrieve and rank blogs, as collections of documents, in response to a given query.  ...  The proposed measure enables us to integrate diversity in any existing blog retrieval method.  ...  We get our initial results using Small Document Model and Blogger Model as discussed in section 2 and used them as our baseline methods.  ... 
doi:10.1145/2505515.2507855 dblp:conf/cikm/KeikhaCC13 fatcat:qwi6pfcqfnappbmp4prh73mvee

An empirical study of topic-sensitive probabilistic model for expert finding in question answer communities

Guangyou Zhou, Jun Zhao, Tingting He, Wensheng Wu
2014 Knowledge-Based Systems  
We have conducted extensive experiments using a real world data set from Yahoo! Answers of English language.  ...  In this article, we study the problem of finding experts in community question answering (CQA). Most of the existing approaches attempt to find experts in CQA via link analysis.  ...  Java [26] proposed methods to find ''blog feeds that matter'' using their folder names and subscriber counts.  ... 
doi:10.1016/j.knosys.2014.04.032 fatcat:4jnisnyk7nfspeiihhd7olcsz4

TEMPER: A Temporal Relevance Feedback Method [chapter]

Mostafa Keikha, Shima Gerani, Fabio Crestani
2011 Lecture Notes in Computer Science  
The goal of a blog distillation (blog feed search) method is to rank blogs according to their recurrent relevance to the query.  ...  An interesting property of blog distillation which differentiates it from traditional retrieval tasks is its dependency on time.  ...  All these proposed methods can be summarized as follows: -Top Feeds: Uses all the posts of the top retrieved feeds for the query expansion.  ... 
doi:10.1007/978-3-642-20161-5_43 fatcat:hl2be7l5qfcyndsnn2aj5nydoa

Blog track research at TREC

Craig Macdonald, Rodrygo L.T. Santos, Iadh Ounis, Ian Soboroff
2010 SIGIR Forum  
In particular, we describe the used corpora, the tasks addressed within the track, and the resulting published research.  ...  We are also thankful to Gilad Mishne and Maarten de Rijke for joining us in organising the TREC 2006 Blog track.  ...  Macdonald and Ounis [28] were the first to propose tackling blog distillation as an expert search problem, by adapting their expert search model-the so-called Voting Model [27] -to the task of searching  ... 
doi:10.1145/1842890.1842899 fatcat:aydy5eclwnfvdkm2zv5jygyt7y

Blog feed search with a post index

Wouter Weerkamp, Krisztian Balog, Maarten de Rijke
2011 Information retrieval (Boston)  
Working in the setting of a probabilistic language modeling approach to information retrieval, we model the blog feed search task by aggregating over a blogger's posts to collect evidence of relevance  ...  We examine the effectiveness of an approach to blog feed search that is based on individual posts as indexing units (instead of full blogs).  ...  Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.  ... 
doi:10.1007/s10791-011-9165-9 fatcat:6aqkhdcplvd47jq6qvkvqvh3u4

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  
In particular we describe our system for performing opinion retrieval and blog distillation.  ...  In [12] , the authors modelled blog distillation as an expert search problem and use a voting model for tackling it.  ...  To do this, we consider the expert search idea proposed in [8] . The main idea of that work is to treat blogs as experts and feed distillation as expert search.  ... 
dblp:conf/trec/GeraniKCGTC08 fatcat:qu46r6rttvcl5h4bwy73atjkqm

Overview of the TREC 2009 Blog Track

Craig Macdonald, Iadh Ounis, Ian Soboroff
2009 Text Retrieval Conference  
We would like to express our thanks and appreciation to the New York Times (http://www.nytimes. com/), for providing the sample of headlines used in the top stories identification task.  ...  In particular, uogTr (University of Glasgow) and UAms adapted their previously used expert search models to feed search.  ...  In terms of retrieval models, uogTr (University of Glasgow) and UAms (University of Amsterdam) used techniques inspired by their expert search model to rank the headlines.  ... 
dblp:conf/trec/MacdonaldOS09 fatcat:3fjndgiqznhsndm2sxa4t5hiqi

Language Modeling Approaches to Blog Postand Feed Finding

Breyten Ernsting, Wouter Weerkamp, Maarten de Rijke
2007 Text Retrieval Conference  
Our approach to the feed distillation task is based on aggregating post-level scores to obtain a feed-level ranking. We integrated time-based and persistence aspects into the retrieval model.  ...  Opinion finding can be improved using either lexicons or the number of comments as document priors.  ...  Below, we present the models we used for topic distillation, and for incorporating aspects of time and persistence in the retrieval model, to improve the accuracy of our feed distillation method.  ... 
dblp:conf/trec/ErnstingWR07 fatcat:huijuhqs5jdfpeuknrxiaw3iby

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.  ...  Topical noise is integrated into the model using a coherence score, which reflects the tightness of the topical structure of a blog.  ...  RETRIEVAL MODEL Our approach to modeling topical noise in blogs builds on a retrieval model based on expert retrieval models [2] . As indexing unit we use individual blog posts.  ... 
doi:10.1145/1390749.1390757 dblp:conf/sigir/HeWLR08 fatcat:kwuy2tr4znfxlf75vzbzpu6yfq

University of Glasgow at TREC 2007: Experiments in Blog and Enterprise Tracks with Terrier

David Hannah, Craig Macdonald, Jie Peng, Ben He, Iadh Ounis
2007 Text Retrieval Conference  
We continue experiments using Terrier 1 [14], our modular and scalable Information Retrieval (IR) platform, and the Divergence From Randomness (DFR) framework.  ...  In the Expert Search task of the Enterprise track, we investigate the use of proximity between query terms and candidate name occurrences in documents.  ...  Moreover, we would like to thank the three friendly assessors who assisted us in our TREC assessment workload this year.  ... 
dblp:conf/trec/HannahMPHO07 fatcat:ryrfq2zf7rh2za4yoefz6dkcci

Overview of the TREC 2007 Blog Track

Craig Macdonald, Iadh Ounis, Ian Soboroff
2007 Text Retrieval Conference  
Thanks are also due to participants in the blog distillation task for creating and assessing topics.  ...  In particular all groups who submitted runs to the blog distillation task have participated in the relevance judging.  ...  Under the largedocument model, feeds were treated as the unit of retrieval.  ... 
dblp:conf/trec/MacdonaldOS07 fatcat:ibcniq3wm5bsfljh77nyudka3u

Effectiveness of Aggregation Methods in Blog Distillation [chapter]

Mostafa Keikha, Fabio Crestani
2009 Lecture Notes in Computer Science  
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 show that using only highly relevant evidence (posts) for each blog can result in an effective retrieval system.  ...  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

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.  ...  ACKNOWLEDGMENTS This work was supported partly by the Center for Intelligent Information Retrieval and partly by the Swiss National Science Foundation.  ... 
doi:10.1145/2396761.2396830 dblp:conf/cikm/KeikhaCC12 fatcat:n73qz4mjdbg3vobyjlvuben75e
« Previous Showing results 1 — 15 out of 213 results