Weimao Ke
Weimao Ke

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wkatdrexel.edu

  Affiliation history
Bibliometrics: publication history
Average citations per article4.33
Citation Count91
Publication count21
Publication years2004-2017
Available for download11
Average downloads per article311.73
Downloads (cumulative)3,429
Downloads (12 Months)175
Downloads (6 Weeks)30
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21 results found Export Results: bibtexendnoteacmrefcsv

Result 1 – 20 of 21
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1 published by ACM
October 2017 ICTIR '17: Proceedings of the ACM SIGIR International Conference on Theory of Information Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 2,   Downloads (12 Months): 24,   Downloads (Overall): 24

Full text available: PDFPDF
We developed a new information retrieval framework based on the Least Information (LI) metric. We derived multiple term weighting schemes and combined them with a vector space representation for ad hoc retrieval. Given probability distributions in a collection as prior knowledge, LI Binary (LIB) quantifies least information due to the ...
Keywords: information measure, information retrieval, metric, ranking, entropy, effectiveness, probability distribution, relevance, term weighting

2 published by ACM
January 2017 ICMSS '17: Proceedings of the 2017 International Conference on Management Engineering, Software Engineering and Service Sciences
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 5,   Downloads (12 Months): 19,   Downloads (Overall): 19

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We study decentralized searches in a large service-oriented agent network and investigate the influences of multiple factors on search efficiency. In this study we focus on overall system robustness and examine search performance in unstable environments where individual agents may fail or a system-wide attack may occur. Experimental results show ...
Keywords: information network, robustness, distributed search, service agents

3
June 2015 International Journal on Digital Libraries: Volume 16 Issue 2, June 2015
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 1

We propose a new theory to quantify information in probability distributions and derive a new document representation model for text clustering and classification. By extending Shannon entropy to accommodate a non-linear relation between information and uncertainty, the proposed least information theory provides insight into how terms can be weighted based ...
Keywords: Semantic information, Term weighting, Information measure, Text clustering, Document representation

4
May 2014 Journal of the Association for Information Science and Technology: Volume 65 Issue 5, May 2014
Publisher: John Wiley & Sons, Inc.
Bibliometrics:
Citation Count: 0

Web search engines are important gateways for users to access health information. This study explored whether a search interface based on the Bing API and enabled by Scatter/Gather, a well-known document-clustering technique, can improve health information searches. Forty participants without medical backgrounds were randomly assigned to two interfaces: a baseline ...
Keywords: searching, evaluation

5 published by ACM
July 2013 JCDL '13: Proceedings of the 13th ACM/IEEE-CS joint conference on Digital libraries
Publisher: ACM
Bibliometrics:
Citation Count: 4
Downloads (6 Weeks): 7,   Downloads (12 Months): 18,   Downloads (Overall): 160

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We propose a new theory to quantify information in probability distributions and derive a new document representation model for text clustering. By extending Shannon entropy to accommodate a non-linear relation between information and uncertainty, the proposed Least Information theory (LIT) provides insight into how terms can be weighted based on ...
Keywords: document representation, term weighting, text clustering, information measure, semantic information

6 published by ACM
July 2013 JCDL '13: Proceedings of the 13th ACM/IEEE-CS joint conference on Digital libraries
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 13,   Downloads (Overall): 126

Full text available: PDFPDF
Scatter/Gather is a document browsing and information retrieval method based on document clustering. It is designed to facilitate user articulation of information needs through iterative clustering and interactive browsing. This paper reports on a study that investigated the effectiveness of Scatter/Gather browsing for information retrieval. We conducted a within-subject user ...
Keywords: exploratory search, search result presentation, relevance, text clustering, interaction, user interface, scatter/gather

7 published by ACM
May 2013 ACM Transactions on Information Systems (TOIS): Volume 31 Issue 2, May 2013
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 5,   Downloads (12 Months): 20,   Downloads (Overall): 290

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With the ubiquitous production, distribution and consumption of information, today's digital environments such as the Web are increasingly large and decentralized. It is hardly possible to obtain central control over information collections and systems in these environments. Searching for information in these information spaces has brought about problems beyond traditional ...
Keywords: self-organization, Information network, loose coupling, efficiency, network clustering, scalability, decentralized search, information retrieval, large-scale distributed system

8
March 2013 Scientometrics: Volume 94 Issue 3, March 2013
Publisher: Springer-Verlag New York, Inc.
Bibliometrics:
Citation Count: 0

We propose a model to analyze citation growth and influences of fitness (competitiveness) factors in an evolving citation network. Applying the proposed method to modeling citations to papers and scholars in the InfoVis 2004 data, a benchmark collection about a 31-year history of information visualization, leads to findings consistent with ...
Keywords: Citation network, Information visualization, Normalized citation scores, Scholarly impact, Citation analysis, Fitness, Preferential attachment

9 published by ACM
January 2011 ACM SIGIR Forum: Volume 44 Issue 2, December 2010
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 2,   Downloads (12 Months): 4,   Downloads (Overall): 94

Full text available: PDFPDF
Amid the rapid growth of information today is the increasing challenge for people to survive and navigate its magnitude. Dynamics and heterogeneity of large information spaces such as the Web challenge information retrieval in these environments. Collection of information in advance and centralization of IR operations are hardly possible because ...

10 published by ACM
July 2010 SIGIR '10: Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 6
Downloads (6 Weeks): 1,   Downloads (12 Months): 18,   Downloads (Overall): 597

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It is crucial to study basic principles that support adaptive and scalable retrieval functions in large networked environments such as the Web, where information is distributed among dynamic systems. We conducted experiments on decentralized IR operations on various scales of information networks and analyzed effectiveness, efficiency, and scalability of various ...
Keywords: clustering paradox, connectivity, network clustering, scalability, strong tie, decentralized search, distributed IR, weak tie

11
January 2010
Bibliometrics:
Citation Count: 0

Amid the rapid growth of information today is the increasing challenge for people to survive and navigate its magnitude. Dynamics and heterogeneity of large information spaces such as the Web challenge information retrieval in these environments. Collection of information in advance and centralization of IR operations are hardly ...

12
August 2009 NBIS '09: Proceedings of the 2009 International Conference on Network-Based Information Systems
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

We proposed and investigated a referral approach to finding experts in distributed networked environments. An expert finding task, namely, finding “good” medical informatics reviewers in peer-review processes, was used in an agentbased simulation environment to evaluate the effectiveness, efficiency, and scalability of the proposed model. Experiments on a coauthorship network ...
Keywords: findability, agent simulation, information retrieval, network search, referral network, distributed IR, p2p, expert finding, medical informatics scholars

13 published by ACM
July 2009 SIGIR '09: Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 17
Downloads (6 Weeks): 2,   Downloads (12 Months): 27,   Downloads (Overall): 873

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We proposed and implemented a novel clustering algorithm called LAIR2, which has constant running time average for on-the-fly Scatter/Gather browsing [4]. Our experiments showed that when running on a single processor, the LAIR2 on-line clustering algorithm was several hundred times faster than a parallel Buckshot algorithm running on multiple processors ...
Keywords: effectiveness, user study, efficiency, scalability, clustering, interactive visualization, scatter/gather, exploratory search

14 published by ACM
October 2008 IIiX '08: Proceedings of the second international symposium on Information interaction in context
Publisher: ACM
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 3,   Downloads (12 Months): 12,   Downloads (Overall): 312

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In this study, we seek to understand how providing feedback to users about their performances with an interactive information retrieval (IIR) system impacts their evaluations of that system. Sixty subjects completed three recall-based searching tasks with an experimental IIR system and were asked to evaluate the system after each task ...

15
July 2007 IV '07: Proceedings of the 11th International Conference Information Visualization
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 4

This paper presents the results of an analysis and visualization of 428,440 movies from the Internet Movie Database (IMDb) provided for the Graph Drawing 2005 contest. Simple statistics are presented as well as a tapestry of all movies with an overlay of the giant component of the co-actor network. Academy ...

16
July 2007 IV '07: Proceedings of the 11th International Conference Information Visualization
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 1

In this study, we crawled a local Web domain, created its graph representation, and analyzed the network structure. The results of network analysis revealed local scalefree patterns consistent with previous research on the Web. To discover topical communities of the local domain, linkbased co-citation analysis was performed to measure pairwise ...

17 published by ACM
June 2007 JCDL '07: Proceedings of the 7th ACM/IEEE-CS joint conference on Digital libraries
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 0,   Downloads (12 Months): 6,   Downloads (Overall): 398

Full text available: PDFPDF
We developed a multi-agent framework where agents had limited/distributed knowledge for document classification and collaborated with each other to overcome the knowledge distribution. Each agent was equipped with a certain learning algorithm for predicting potential collaborators, or helping agents. We conducted experimental research on a standard news corpus to examine ...
Keywords: collaboration, efficiency, learning, information retrieval, distributed classification, effectiveness, multi-agent system

18
July 2006 IV '06: Proceedings of the conference on Information Visualization
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 4

This paper presents a novel approach (1) to define, analyze, and map a scientific discipline and (2) to compare and map the expertise of single authors based on personal bibliography files, e.g., bibtex or EndNote files. Section one motivates this research and relates it to existing work. Section two explains ...

19 published by ACM
June 2005 JCDL '05: Proceedings of the 5th ACM/IEEE-CS joint conference on Digital libraries
Publisher: ACM
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 2,   Downloads (12 Months): 14,   Downloads (Overall): 536

Full text available: PDFPDF
Automatic text classification is an important operational problem in digital library practice. Most text classification efforts so far concentrated on developing centralized solutions. However, centralized classification approaches often are limited due to constraints on knowledge and computing resources. In addition, centralized approaches are more vulnerable to attacks or system failures ...
Keywords: multi-agent system, classification

20
March 2005 Complexity - Understanding Complex Systems: Part II: Volume 10 Issue 4, March 2005
Publisher: John Wiley & Sons, Inc.
Bibliometrics:
Citation Count: 27

This article introduces a suite of approaches and measures to study the impact of co-authorship teams based on the number of publications and their citations on a local and global scale. In particular, we present a novel weighted graph representation that encodes coupled author-paper networks as a weighted co-authorship graph. ...
Keywords: information visualization, citation analysis, co-author networks, weighted network analysis



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