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Dissimilarity measures for content-based image retrieval. (2008)
Conference Proceeding
HU, R., RUGER, S., SONG, D., LIU, H. and HUANG, Z. 2008. Dissimilarity measures for content-based image retrieval. In Proceedings of the 2008 IEEE international conference on multimedia and expo (ICME 2008), 23-26 June 2008, Hannover, Germany. New York: IEEE [online], article number 4607697, pages 1365-1368. Available from: https://doi.org/10.1109/ICME.2008.4607697

Dissimilarity measurement plays a crucial role in contentbased image retrieval. In this paper, sixteen core dissimilarity measures are introduced and evaluated. We carry out a systematic performance comparison on three image collections, including Co... Read More about Dissimilarity measures for content-based image retrieval..

Knowledge discovery for adaptive negotiation agents in e-marketplaces. (2008)
Journal Article
LAU, R.Y.K., LI, Y., SONG, D. and KWOK, R.C.W. 2008. Knowledge discovery for adaptive negotiation agents in e-marketplaces. Decision support systems [online], 45(2): IT and value creation: revised selected papers from the proceedings of the 9th Pacific Asia conference on information systems (PACIS 2005), 7-10 July 2005, Bangkok, Thailand, pages 310-323. Available from: https://doi.org/10.1016/j.dss.2007.12.018

Intelligent software agents are promising in improving the effectiveness of e-marketplaces for e-commerce. Although a large amount of research has been conducted to develop negotiation protocols and mechanisms for e-marketplaces, existing negotiation... Read More about Knowledge discovery for adaptive negotiation agents in e-marketplaces..

Towards a belief-revision-based adaptive and context-sensitive information retrieval system. (2008)
Journal Article
LAU, R.Y.K., BRUZA, P. and SONG, D. 2008. Towards a belief-revision-based adaptive and context-sensitive information retrieval system. ACM transactions on information systems [online], 26(2), article number 8. Available from: https://doi.org/10.1145/1344411.1344414

In an adaptive information retrieval (IR) setting, the information seekers' beliefs about which terms are relevant, or non-relevant, will naturally fluctuate. This article investigates how the theory of belief revision can be used to model adaptive I... Read More about Towards a belief-revision-based adaptive and context-sensitive information retrieval system..

The Open University at TREC 2007 Enterprise Track. (2008)
Conference Proceeding
ZHU, J., SONG, D. and RUGER, S. 2007. The Open University at TREC 2007 Enterprise Track. In Proceedings of the 16th Text retrieval conference (TREC 2007), 5-9 November 2007, Gaithersburg, USA. National Institute of Standards and Technology (NIST) special publications, SP 500-274. Gaithersburg: NIST [online], paper number 49. Available from: https://trec.nist.gov/p...ers/openu.ent.final.pdf

The Multimedia and Information Systems group at the Knowledge Media Institute of the Open University participated in the Expert Search and Document Search tasks of the Enterprise Track in TREC 2007. In both the document and expert search tasks, we ha... Read More about The Open University at TREC 2007 Enterprise Track..

Learning and optimization of an aspect hidden markov model for query language model generation. (2007)
Conference Proceeding
HUANG, Q., SONG, D., RUGER, S. and BRUZA, P. 2007. Learning and optimization of an aspect hidden markov model for query language model generation. In Dominich, S. and Kiss, F. (eds.) Studies in theory of information retrieval: proceedings of the 1st Association of Computing Machinery Special Interest Group on Information Retrieval (ACM SIGIR) international conference on the theory of information retrieval (ICTIR'07), 18-20 October 2007, Budapest, Hungary. Budapest: Foundation for Information Society (INFOTA), pages 157-164.

The Relevance Model (RM) incorporates pseudo relevance feedback to derive query language model and has shown a good performance. Generally, it is based on uni-gram models of individual feedback documents from which query terms are sampled independent... Read More about Learning and optimization of an aspect hidden markov model for query language model generation..

Relation discovery from web data for competency management. (2007)
Journal Article
ZHU, J., GONCALVES, A.L., UREN, V.S., MOTTA, E., PACHECO, R., EISENSTADT, M. and SONG, D. 2007. Relation discovery from web data for competency management. Web intelligence and agent systems [online], 5(4), pages 405-417. Available from: https://content.iospres...tional-journal/wia00124

In current organizations, valuable enterprise knowledge is often buried under rapidly expanding huge amount of unstructured information in the form of web pages, blogs, and other forms of human text communications. We present a novel unsupervised mac... Read More about Relation discovery from web data for competency management..

An intelligent information agent for document title classification and filtering in document-intensive domains. (2007)
Journal Article
SONG, D., LAU, R.Y.K., BRUZA, P.D., WONG, K.-F. and CHEN, D.-Y. 2007. An intelligent information agent for document title classification and filtering in document-intensive domains. Decision support systems [online], 44(1), pages 251-265. Available from: https://doi.org/10.1016/j.dss.2007.04.001

Effective decision making is based on accurate and timely information. However, human decision makers are often overwhelmed by the huge amount of electronic data these days. The main contribution of this paper is the development of effective informat... Read More about An intelligent information agent for document title classification and filtering in document-intensive domains..

Dimensionality reduction for dimension-specific search. (2007)
Presentation / Conference
HUANG, Z., SHEN, H., ZHOU, X., SONG, D. and RUGER, S. 2007. Dimensionality reduction for dimension-specific search. In Proceedings of the 30th Annual international Association of Computing Machinery Special Interest Group on Information Retrieval (ACM SIGIR) conference on research and development in information retrieval (SIGIR'07), 23-27 July 2007, Amsterdam, Netherlands. New York: ACM [online], pages 849-850. Available from: https://doi.org/10.1145/1277741.1277940

Dimensionality reduction plays an important role in efficient similarity search, which is often based on k-nearest neighbor (k-NN) queries over a high-dimensional feature space. In this paper, we introduce a novel type of k-NN query, namely condition... Read More about Dimensionality reduction for dimension-specific search..

Concept induction via fuzzy C-means clustering in a high dimensional semantic space. (2007)
Book Chapter
SONG, D., CAO, G., BRUZA, P.D. and LAU, R.Y.K. 2007. Concept induction via fuzzy C-means clustering in a high dimensional semantic space. In Valente de Oliveira, J. and Pedrycz, W. (eds.) Advances in fuzzy clustering and its applications. Chichester: Wiley [online], chapter 19, pages 393-403. Available from: https://www.wiley.com/e...cations-p-9780470061183

Lexical semantic space models have recently been investigated to automatically derive the meaning (semantics) of information based on natural language usage. In a semantic space, a term can be considered as a concept represented geometrically as a ve... Read More about Concept induction via fuzzy C-means clustering in a high dimensional semantic space..

Enabling management oversight in corporate blog space. (2006)
Conference Proceeding
SONG, D., BRUZA, P., MCARTHUR, R. and MANSFIELD, T. 2006. Enabling management oversight in corporate blog space. In Nicolov, N., Salvetti, F., Liberman, M. and Martin, J.H. (eds.) Computational approaches to analyzing weblogs: proceedings of the 2006 American Association for Artificial Intelligence (AAAI) Spring symposium, 27-29 March 2006, Stanford, USA. Palo Alto: AAAI Press.

When a modern corporation empowers its staff to use blogs to communicate with colleagues, partners, suppliers and customers, the role of management in exercising oversight and guidance over the public speech of staff becomes dramatically challenged.... Read More about Enabling management oversight in corporate blog space..

Introduction to special issue on reasoning in natural language information processing. (2006)
Journal Article
SONG, D. and NIE, J. Y. 2006. Introduction to special issue on reasoning in natural language information processing. ACM transactions on Asian language information processing [online], 5(4), pages 291-295. Available from: https://doi.org/10.1145/1236181.1236182

For any applications related to Natural Language Processing (NLP), reasoning has been recognized as a necessary underlying aspect. Most of the existing work in NLP deals with specific NLP problems in a highly heuristic manner, yet not from an explici... Read More about Introduction to special issue on reasoning in natural language information processing..

LRD: latent relation discovery for vector space expansion and information retrieval. (2006)
Conference Proceeding
GONCALVES, A., ZHU, J., SONG, D., UREN, V. and PACHECO, R. 2006. LRD: latent relation discovery for vector space expansion and information retrieval. In Yu, J.X., Kitsuregawa, M. and Leong, H.V. (eds.) Advances in web-age information management: proceedings of the 7th International conference on web-age information management (WAIM 2006), 17-19 June 2006, Hong Kong, China. Lecture notes in computer science, 4016. Berlin: Springer [online], pages 122-133. Available from: https://doi.org/10.1007/11775300_11

In this paper, we propose a text mining method called LRD (latent relation discovery), which extends the traditional vector space model of docu-ment representation in order to improve information retrieval (IR) on docu-ments and document clustering.... Read More about LRD: latent relation discovery for vector space expansion and information retrieval..

Concept-based document readability in domain specific information retrieval. (2006)
Conference Proceeding
YAN, X., SONG, D. and LI, X. 2006. Concept-based document readability in domain specific information retrieval. In Proceedings of the 15th Association for Computing Machinery (ACM) international conference on information and knowledge management (CIKM'06), 5-11 November 2006, Arlington, USA. New York: ACM [online], pages 540-549. Available from: https://doi.org/10.1145/1183614.1183692

Domain specific information retrieval has become in demand. Not only domain experts, but also average non-expert users are interested in searching domain specific (e.g., medical and health) information from online resources. However, a typical proble... Read More about Concept-based document readability in domain specific information retrieval..

Exploiting semantic association to answer 'vague queries'. (2006)
Conference Proceeding
ZHU, J., EISENSTADT, M., SONG, D. and DENHAM, C. 2006. Exploiting semantic association to answer 'vague queries'. In Li, Y., Looi, M. and Zhong, N. (eds.) Advances in intelligent IT: proceedings of the 4th International conference on active media technology (AMT06), 7-9 June 2006, Brisbane, Australia. Frontiers in artificial intelligence and applications, 138. Amsterdam: IOS Press [online], pages 73-78. Available from: http://ebooks.iospress.nl/volumearticle/2511

Although todays web search engines are very powerful, they still fail to provide intuitively relevant results for many types of queries, especially ones that are vaguely-formed in the users own mind. We argue that associations between terms in a sear... Read More about Exploiting semantic association to answer 'vague queries'..

Towards operational abduction from a cognitive perspective. (2006)
Journal Article
BRUZA, P., COLE, R., SONG, D. and BARI, Z. 2006. Towards operational abduction from a cognitive perspective. Logic journal of the IGPL [online], 14(2), pages 161-177. Available from: https://doi.org/10.1093/jigpal/jzk012

Diminishing awareness is a consequence of the information explosion: disciplines are becoming increasingly specialized; individuals and groups are becoming ever more insular. This article considers how awareness can be enhanced via operational abduct... Read More about Towards operational abduction from a cognitive perspective..

Dimensionality reduction in patch-signature based protein structure matching. (2006)
Conference Proceeding
HUANG, Z., ZHOU, X., SONG, D. and BRUZA, P. 2006. Dimensionality reduction in patch-signature based protein structure matching. In: Dobbie, G. and Bailey, J. (eds.) Proceedings of the 17th Australasian database conference (ADC'06), 16-19 January 2006, Hobart, Australia. Darlinghurst: Australian Computer Society [online], pages 89-97. Available from: https://dl.acm.org/citation.cfm?id=1151746

Searching bio-chemical structures is becoming an important application domain of information re- trieval. This paper introduces a protein structure matching problem and formulates it as an infor- mation retrieval problem. We first present a novel vec... Read More about Dimensionality reduction in patch-signature based protein structure matching..

Document re-ranking by generality in bio-medical information retrieval. (2005)
Conference Proceeding
YAN, X., LI, X. and SONG, D. 2005. Document re-ranking by generality in bio-medical information retrieval. In Ngu, A.H.H., Kitsuregawa, M., Neuhold, E.J., Chung, J.-Y. and Sheng, Q.Z. (eds.) Web information systems engineering: proceedings of the 6th International conference on web information systems engineering (WISE 2005), 20-22 November 2005, New York, USA. Lecture notes in computer science, 3806. Berlin: Springer [online], pages 376-389. Available from: https://doi.org/10.1007/11581062_28

Document ranking is well known to be a crucial process in information retrieval (IR). It presents retrieved documents in an order of their estimated degrees of relevance to query. Traditional document rank- ing methods are based on different measurem... Read More about Document re-ranking by generality in bio-medical information retrieval..

Inferring query models by computing information flow. (2005)
Conference Proceeding
BRUZA, P.D. and SONG, D. 2002. Inferring query models by computing information flow. In Proceedings of the 11th Association for Computing Machinery (ACM) international conference on information and knowledge management (CIKM'02), 4-9 November 2002, McLean, USA. New York: ACM [online], pages 260-269. Available from: https://doi.org/10.1145/584792.584837

The language modelling approach to information retrieval can also be used to compute query models. A query model can be envisaged as an expansion of an initial query. The more prominent query models in the literature have a probabilistic basis, that... Read More about Inferring query models by computing information flow..

Query expansion using term relationships in language models for information retrieval. (2005)
Conference Proceeding
BAI, J., SONG, D., BRUZA, P., NIE, J.-Y. and CAO, G. 2005. Query expansion using term relationships in language models for information retrieval. In Proceedings of the 14th Association for Computing Machinery (ACM) international conference on information and knowledge management (CIKM'05), 31 October - 5 November 2005, Bremen, Germany. New York: ACM [online], pages 688-695. Available from: https://doi.org/10.1145/1099554.1099725

Language Modeling (LM) has been successfully applied to Information Retrieval (IR). However, most of the existing LM approaches only rely on term occurrences in documents, queries and document collections. In traditional unigram based models, terms (... Read More about Query expansion using term relationships in language models for information retrieval..

Policy conformance in the corporate blog space. (2005)
Conference Proceeding
MCARTHUR, R., BRUZA, P.D. and SONG, D. 2005. Policy conformance in the corporate blog space. In Kagal, L., Finin, T. and Hendler, J. (eds.) Proceedings of the Policy management for the web workshop, part of the 14th International world wide web conference (WWW2005), 10-14 May 2005, Chiba, Japan. Baltimore: University of Maryland [online], pages 21-28. Available from: https://www.csee.umbc.e...w/papers/mcarthur13.pdf

This paper describes part of a solution to the interpretation of human-readable policy documents into semi-automatic conformance checking. Using a socio-cognitively motivated representation of shared knowledge, and applying appropriate inference mech... Read More about Policy conformance in the corporate blog space..