Christopher S.G. Khoo

Ph.D. (Syracuse)
M.Sc (Illinois, Urbana-Champaign)
B.A. (Harvard)

Programme Director, MSc (Information Studies) and Associate Professor,
Division of Information Studies,
School of Communication & Information,
Nanyang Technological University

31 Nanyang Link
Singapore 637718
Tel. (65) 6790 4602
Fax. (65) 6790 7526

Email: assgkhoo@ntu.edu.sg

=> Bio-description, Research projects

Publications

Journal Papers

  1. Nourbakhsh, A., Khoo, C., & Na, J.C. (under review). Applying the appraisal theory to sentiment analysis of political news – A case study.
  2. Chaudhry, A.S., Khoo, C., Wu, P., & Chang, Y.K. (in press). Trends in LIS education: Coverage of soft skills in curricula. Bulletin of Library and Information Science (National Chengchi University).
  3. Chaudhry, A.S., & Khoo, C. (2008, in press). Enhancing the quality of LIS education in Asia: Organizing teaching materials for sharing and reuse. New Library World, 109 (7/8), 354-365.
  4. Wang, Z., Chaudhry, A.S., & Khoo, C. (in press). Using classification schemes and thesauri to build an organizational taxonomy for organizing content and aiding navigation. Journal of Documentation.
  5. Ou, S., Khoo, C., & Goh, D. (2008). Design and development of a concept-based multi-document summarization system for research abstracts. Journal of Information Science, 34(3), 308-326.
  6. Ou, S., Khoo, C., & Goh, D. (2007). Automatic multi-document summarization of research abstracts: Design and user evaluation. Journal of the American Society for Information Science & Technology, 58(10), 1419-1435.
  7. Wu, P., Na, J.C., & Khoo, C. (2007). A hybrid approach to fuzzy name search incorporating language-based and text-based principles. Journal of Information Science, 33(1), 3-19.
  8. Khoo, C., Luyt, B., Ee, C., Osman, J., Lim, H.H. & Yong, S. (2007). How users organize electronic files on their workstations in the office environment: a preliminary study of personal information organization behaviour. Information Research, 12(2), paper 293 [Available at http://InformationR.net/ir/12-2/paper293.html].
  9. Wang, Z., Chaudhry, A.S., & Khoo, C. (2006). Potential and prospects of taxonomies for content organization knowledge organization. Knowledge Organization, 33(3), 160-169.
  10. Ou, S., Khoo, C., & Goh, D. (2006). Multi-document summarization of news articles using an event-based framework. ASLIB Proceedings, 58(3), 197-217.
  11. Khoo, C., & Na, J.C. (2006). Semantic Relations in Information Science. Annual Review of Information Science and Technology, 40, 157-228. [Preprint in PDF]
  12. Ou, S., Khoo, C., & Goh, D. (2005). Constructing a taxonomy to support multi-document summarization of dissertation abstracts. Journal of Zhejiang University: Science 6A(11), 1258-1267.
  13. Na, J.C., Khoo, C., & Wu, P.H.J. (2005). Use of negation phrases in automatic sentiment classification of product reviews. Library Collections, Acquistions & Technical Services, 29(2), 180-191.
  14. Khoo, C., & Chennupati, K.R. (2004). Profile of LIS applicants selecting different specialisations. Libri, 54(2), 67-81.
  15. Khoo, C., & Wan, K.W. (2004). A simple relevancy ranking strategy for an interface to Boolean OPACs. The Electronic Library, 24(2), 112-120.
  16. Khoo, C., Higgins, S.E., Foo, S., & Lim, S.P. (2004). A cluster analysis of LIS students in Singapore and implications for defining areas of specialization. Journal of Education for Library and Information Science, 44(1), 36-57.
  17. Khoo, C., Majid, S., & Chaudhry, A.S. (2003). Developing an accreditation system for LIS professional education programmes in Southeast Asia: Issues and perspectives. Malaysian Journal of Library & Information Science, 8(2), 131-149. [Preprint in PDF]
  18. Khoo, C., Dai, Y., & Loh, T.E. (2002). Using statistical and contextual information to identify two- and three-character words in Chinese text. Journal of the American Society for Information Science & Technology, 53(5), 365-377.
  19. Xi, W., Xu-Rong, R., Khoo, C., & Lim, E.P. (2001). Incorporating window-based passage-level evidence in document retrieval. Journal of Information Science, 27(2), 73-80.
  20. Khoo, C., Myaeng, S.H., & Oddy, R. (2001). Using cause-effect relations in text to improve information retrieval precision. Information Processing and Management, 37(1), 119-145.
  21. Khoo, C., & Al-Hawamdeh, S. (2000). IT in the Information Studies Curriculum: How Much is Enough? How Much is Too Much. Singapore Journal of Information Management, 29, 31-43. [Paper in PDF]
  22. Poo, D., Toh, T.K., & Khoo, C. (2000). Design and implementation of the E-Referencer. Data and Knowledge Engineering, 32, 199-218.
  23. Poo, D.C.C., Toh, T.K., & Khoo, C. (2000). Enhancing online catalog searches with an electronic referencer. Journal of Systems and Software, 55(2), 203-219.
  24. Khoo, C., Chan, S., Niu, Y., & Ang, A. (1999). A method for extracting causal knowledge from textual databases. Singapore Journal of Library & Information Management, 28, 48-63. [Paper in PDF]
  25. Khoo, C., Kornfilt, J., Oddy, R., & Myaeng, S.H. (1998). Automatic extraction of cause-effect information from newspaper text without knowledge-based inferencing. Literary & Linguistic Computing, 13(4), 177-186. [Preprint in PDF]
  26. Khoo, C. (1997). The use of relation matching in information retrieval. LIBRES: Library and Information Science Research Electronic Journal [Online], 7(2). Available at: http://aztec.lib.utk.edu/libres/libre7n2/.
  27. Cheng-Lu, & Khoo, C. (1997). An evaluation of Web interfaces to online catalogues. Singapore Libraries, 26(2), 17-33.
  28. Khoo, C., & Poo, D. (1994). An expert system approach to online catalog subject searching. Information Processing & Management, 30(2), 223-238.
  29. Khoo, C., Ong, H.K., & Yap, S. (1991). Serials fiscal control using a flat?file database management system on a microcomputer. Serials Librarian, 20(1), 91?105.
  30. Abdul, Hayati, & Khoo, C. (1989). Automatic indexing of medical literature using phrase matching: An exploratory study. Singapore Libraries, 19, 3-14. [Paper in PDF]
  31. Khoo, C. (1986). The use of keyboard macros in online searching. Online, 10(6), 76-81.


Conference Papers

  1. Khoo, C., & Ou, S. (2008). Machine versus human clustering of concepts across documents. In Proceedings of the 10th International ISKO Conference (pp. 333-339). Wurzburg, Germany: Ergon Verlag.
  2. Chaudhry, A.S., & Khoo, C. (2008). A Survey of the top-level categories in the structure of corporate websites. In Proceedings of the 10th International ISKO Conference (pp. 157-163). Wurzburg, Germany: Ergon Verlag.
  3. Chaudhry, A.S., Wang, Z., & Khoo, C.S.G. (2008). Potential of bibliographic tools for developing organizational taxonomies. In Proceedings of the 36th Annual Conference of the Canadian Association for Information Science (CAIS).
  4. Nourbakhsh, A., Khoo, C., & Na, J.C. (2008). A framework for sentiment analysis of political news articles. Presented at the ICA (International Communication Association) Conference 2008.
  5. Khoo, C., Na, J.C., Wang, W., & Chan, S. (2008). Pattern mining for information extraction using lexical, syntactic and semantic information: Preliminary results. In Asia Information Retrieval Symposium 2008 (pp. 684-689). Berlin: Spinger.
  6. Thet, T.T., Na, J.C., & Khoo, C. (2007). Automatic classification of Web search results: Product review vs. non-review documents. In 10th International Conference on Asian Digital Libraries (ICADL 2007): Proceedings (Lecture Notes in Computer Science, vol. 4822, pp. 65-74). Berlin: Springer.
  7. Chaudhry, A.S., Khoo, C., Wu, P., & Chang, Y.K. (2007). Trends in LIS education: Coverage of soft skills in curricula. In Proceeding of the Asia Pacific Conference on Library & Information Education & Practice 2007 (A-LIEP 2007), Taipei (pp. 1-14). Taipei: Dept. of Information & Communication, Shih-Hsin University.
  8. Ou, S., Khoo, C., & Goh, D. (2007). Multi-document summarization focusing on extracting and integrating similarities and differences among documents. In Proceedings of the 2007 International Conference Recent Advances in Natural Language Processing (RANLP-2007) (pp. 442-446).
  9. Thet, T.T., Na, J.C., & Khoo, C. (2007). Filtering product reviews from Web search results. In Proceedings of the ACM Symposium on Document Engineering 2007 (pp. 196-198). New York: ACM.
  10. Khoo, C., Na, J.C., Wang, W., & Chan, S.. (2007). Modeling cancer treatment information with an ontology. In International Conference on Future of Knowledge Organization in the Networked Environment (IKONE 2007) (pp. 255-268). Bangalore: Indian Statistical Institute.
  11. Chaudhry, A.S., & Khoo, C. (2007). Enhancing the quality of LIS education in Asia: Organizing teaching materials for sharing and reuse. In World Library and Information Congress: 73rd IFLA General Conference and Council. The Hague: International Federation of Library Associations and Institutions. Available: http://www.ifla.org/IV/ifla73/Programme2007.htm
  12. Abdul Karim, A.H., Chaudhry, A.S., & Khoo, C. (2007). Learning objects application profile for granularity and reusability: Integrating Dublin Core with IEEE-LOM. In Proceedings of the International Conference on Dublin Core and Metadata Applications 2007 (DC 2007) (pp. 116-122). Singapore: Dublin Core Metadata Initiative and National Library Board Singapore.
  13. Khoo. C., Chaudhry, A.S., Theng, Y.L., & Abdul Karim, A.H. (2007). Potential for resource sharing of lecture materials using a repository of learning objects. Presented at the Seminar on Collaboration and Resource Sharing Among LIS schools, Mahasarakham University, Thailand, 17-19 August 2007.
  14. Lee, C.H., Na, J.C., & Khoo, C. (2006). Towards ontology enrichment with treatment relations extracted from medical abstracts. In 9th International Conference on Asian Digital Libraries, ICADL 2006: Proceedings (Lecture Notes in Computer Science, 4312/2006, pp. 419-428). Berlin: Springer.
  15. Foo, S., Khoo, C., Chaudhry, A.S., & Majid, S. (2006). Working together in developing library and information science education in the Asia Pacific. In 9th International Conference on Asian Digital Libraries, ICADL 2006: Proceedings (Lecture Notes in Computer Science, 4312/2006, pp. 4-11). Berlin: Springer.
    13. Chaudhry, A.S., Khoo, C., Theng, Y.-L., & Halim, A. (2006). Issues in developing a repository of learning objects for LIS education in Asia. In World Library and Information Congress: 72nd IFLA General Conference and Council. [Available: http://www.ifla.org/IV/ifla72/papers/107-Chaudhry_Khoo-en.pdf]
  16. Khoo, C., Yeo, G., Yeung, C., Chandhry, A.S, Majid, M.S. (2006). A survey of non-traditional employment opportunities for information and knowledge professionals in Singapore. In Proceedings of the 13th Congress of Southeast Asian Librarians (CONSAL XIII).
  17. Na, J.C., Khoo, C., & Chan, S. (2006). A sentiment-based meta search engine. In Proceedings of the Asia-Pacific Conference on Library & Information Education & Practice 2006 (A-LIEP 2006) (pp. 83-89). Singapore: School of Communication & Information, Nanyang Technological University.
  18. Ou, S., Khoo, C., & Goh, D. (2006). Automatic multi-document summarization for digital libraries. In Proceedings of the Asia-Pacific Conference on Library & Information Education & Practice 2006 (A-LIEP 2006) (pp. 72-82). Singapore: School of Communication & Information, Nanyang Technological University.
  19. Theng, Y.-L., Saputra, D., Goh, D., Foo, S., Chaudhry, A.S., Na, J.C., Khoo, C., Tan, M., Wu, P., Halim, A., & Lek, L. (2006). ReLOMS: Designing for effective use and reuse of learning objects for e-learning systems. In Proceedings of the Asia-Pacific Conference on Library & Information Education & Practice 2006 (A-LIEP 2006) (pp. 160-163). Singapore: School of Communication & Information, Nanyang Technological University.
  20. Ou, S., Khoo, C., & Goh, D.H. (2005). Development and evaluation of a multi-document summarization method focusing on research concepts and their research relationships. In Digital Libraries: Implementing Strategies and Sharing Experiences: 8th International Conference on Asian Digital Libraries, ICADL 2005: Proceedings (pp. 283-292). (Lecture Notes in Computer Science, 3815). Berlin: Springer-Verlag.
  21. Ou, S., Khoo, C., & Goh, D.H. (2005). A multi-document summarization system for sociology dissertation abstracts: Design, implementation and evaluation. In Research and Advanced Technology for Digital Libraries, 9th European Conference, ECDL 2005 (pp. 450-461). (Lecture Notes in Computer Science, 3652). Berlin: Springer-Verlag.
  22. Khoo, C. (2005). Competencies for new era librarians and information professionals. Presented at the International Conference on Libraries (ICOL 2005), 14-16 March 2005, Penang, Malaysia.
  23. Na, J.C., Khoo, C., Chan, S., & Hamzah, N. (2005). Sentiment-based search in digital libraries. In Proceedings of the Joint Conference on Digital Libraries (JCDL) 2005 (pp. 143-144). Berlin: Springer-Verlag.
  24. Ou, S., Khoo, C., Goh, D.H., & Heng, H.Y. (2004). Automatic discourse parsing of sociology dissertation abstracts as sentence categorization. In I.C. McIlwaine (Ed.), Knowledge Organization and the Global Information Society: Proceedings of the Eighth International ISKO Conference (pp. 345-350). Wurzburg, Germany: Ergon Verlag. [Preprint in PDF]
  25. Lee, C.H., Khoo, C., & Na, J.C. (2004). Automatic identification of treatment relations for medical ontology learning: An exploratory study. In I.C. McIlwaine (Ed.), Knowledge Organization and the Global Information Society: Proceedings of the Eighth International ISKO Conference (pp. 245-250). Wurzburg, Germany: Ergon Verlag. [Preprint in PDF]
  26. Na, J.C., Sui, H., Khoo, C., Chan, S., & Zhou, Y. (2004). Effectiveness of simple linguistic processing in automatic sentiment classification of product reviews. In I.C. McIlwaine (Ed.), Knowledge Organization and the Global Information Society: Proceedings of the Eighth International ISKO Conference (pp. 49-54). Wurzburg, Germany: Ergon Verlag. [Preprint in PDF]
  27. Chee, D.S.L., & Khoo, C. (2004). Users’ mouse/cursor movements in two Web-based library catalog interfaces. In H.M. Khalid, M.G. Helandar, & A.W. Yeo (Eds.), Work With Computing Systems 2004: Proceedings of the 7th International Conference on WWCS (pp. 640-645). Kuala Lumpur: Damai Sciences. [Paper in PDF]
  28. Lee, C.H., Na, J.C., & Khoo, C. (2003). Ontology learning for medical digital libraries. In Digital Libraries: Technology and Management of Indigenous Knowledge for Global Access: 6th International Conference on Asian Digital Libraries,ICADL 2003 (pp. 302-305). (Lecture Notes in Computer Science, 2911). Berlin: Springer-Verlag.
  29. Na, J.C., Othman, F., & Khoo, C. (2003). An XML-based query generator for multiple Boolean search systems on the Web. Poster paper in 6th International Conference on Asian Digital Libraries,ICADL 2003 (p. 684). (Lecture Notes in Computer Science, 2911). Berlin: Springer-Verlag.
  30. Ou, S., Khoo, C., & Goh, D. (2003). Multi-document summarization of dissertation abtstracts using a variable-based framework. In ASIST 2003: Proceedings of the 66th ASIST Annual Meeting (vol. 40, pp. 230-239). Medford, NJ: Information Today.
  31. Ou, S., Khoo, C. Goh, D., & Heng, H.Y. (2003). Discourse parsing of sociology dissertation abstracts using decision tree induction. In Taxonomy By Any Other Name - State of the Art Implementation of Classification Research in Information Technologies: 14th Annual ASIST SIG CR Workshop. American Society for Information Science & Technology.
  32. Sui, H., Khoo, C., & Chan, S. (2003). Sentiment classification of product reviews using SVM and decision tree induction. In Taxonomy By Any Other Name - State of the Art Implementation of Classification Research in Information Technologies: 14th Annual ASIST SIG CR Workshop. American Society for Information Science & Technology.
  33. Na, J.C., Khoo, C., Lee, C.H. (2003). Automatic extraction of ontology relations from medical abstracts. In Taxonomy By Any Other Name - State of the Art Implementation of Classification Research in Information Technologies: 14th Annual ASIST SIG CR Workshop. American Society for Information Science & Technology.
  34. Khoo, C., Ou, S., & Goh, D. (2002). A hierarchical framework for multi-document summarization of dissertation abstracts. In E.P. Lim, et al. (Eds.), Digital Libraries: People, Knowledge, and Technology: 5th International Conference on Asian Digital Libraries, ICADL 2002, Singapore (pp. 99-110). Berlin: Springer.
  35. Khoo, C., Ng, K., & Ou, S. (2002). An exploratory study of human clustering of Web pages. In Lopez-Huertas, Maria J. (Ed.), Challenges in Knowledge Representation and Organization for the 21st century: Integration of Knowledge across Boundaries: Proceedings of the Seventh International ISKO Conference, Granada, Spain (pp. 351-357). (Advances in Knowledge Organization, Vol. 8). Germany: Ergon-Verlag.
  36. Lim, E.P., Goh, D., Liu, Z., Ng, W.K., Khoo, C., Higgins, S. (2002). Digital libraries for spatial data: G-Portal: A map-based digital library for distributed geospatial and georeferenced resources. In Proceedings of the Second ACM/IEEE-CS Joint Conference on Digital Libraries, Portland, Oregon (pp. 351-358). New York: ACM.
  37. Poo, D.C.C., & Khoo, C. (2002). Multi library catalog and electronic database search for lay-users. In Pre-Conference Seminar on Academic Libraries, World Library Summit, April 2002, Singapore. Singapore: National Library Board.
  38. Khoo, C., Chennupati, K.R., Lim, K.H., & Haffidz A.H. (2001) Students' Selection of LIS Specialisations, and Implications for LIS Education. In International Conference for Library and Information Science Educators in the Asia Pacific Region (ICLISE 2001), 11-12 June 2001, Petaling Jaya, Malaysia.
  39. Khoo, C., Higgins, S., Foo, S., Lim, S.P. (2001). Cluster analysis of LIS students based on their choice of subjects. Presented at the 2001 ALISE Annual Conference, Jan 9-12, 2001, Washington, D.C.
  40. Khoo, C., Chan, S., & Niu, Y. (2000). Extracting causal knowledge from a medical database using graphical patterns. In ACL-2000: 38th Annual Meeting of the Association for Computational Linguistics, 1-8 October 2000, Hong Kong (pp. 336-343). New Brunswick, NJ: Association for Computational Linguistics.
  41. Higgins, S.E., & Khoo, C.. (2000). Exploring cross-cultural issues in information studies education in Southeast Asia and the Pacific. In 66th IFLA Council and General Conference, 13-18 August 2000 (Jerusalem): Conference Programme and Proceedings (URL http://www.ifla.org/IV/ifla66/66cp.htm). The Hague: International Federation of Library Associations.
  42. Khoo, C., Poo, D., Toh, T.K., & Hong, G. (1999). E-Referencer: Transforming Boolean OPACs to Web search engines. In 65th IFLA Council and General Conference, Bangkok (booklet 6, pp. 56-63). (Available: http://www.ifla.org/IV/ifla65/65cp.htm). The Hague: International Federation of Library Associations.
  43. Dai, Y., Khoo, C., & Loh, T.E. (1999). A new statistical formula for Chinese text segmentation incorporating contextual information. In Proceedings of SIGIR'99: 22nd International Conference on Research and Development in Information Retrieval, San Francisco (pp. 82-89). New York: ACM.
  44. Poo, D., Toh, T.K., & Khoo, C.. (1999). Search interface for Z39.50 compliant online catalogs over the Internet. (1999). In Proceedings of the 32nd Annual Hawaii International Conference on System Sciences (HICSS-32), Software Technology Track, Multi Media Database and Internet Mini Track (pp. 50-57). New York: IEEE.
  45. Khoo, C., Poo, D., Toh, T.K., Liew, S.K., & Goh, A. (1998). E-Referencer: A prototype expert system Web interface to online catalogs. In C. Nikolaou & C. Stephanidis (Eds.), Research and Advanced Technology for Digital Libraries, 2nd European Conference, ECDL'98, Greece (pp. 315-333). Berlin: Springer-Verlag.
  46. Khoo, C., Liew, S.K., Hong, G., Poo, D., & Toh, T.K. (1998). Development of search strategies for E-Referencer, an expert system Web interface to online catalogs. In E. Toms, D.G. Campbell, & J. Dunn (Eds.), Information Science at the Dawn of the Millennium: Proceedings of the 26th Annual Conference of the Canadian Association for Information Science (pp. 319-338). Toronto: The Association.
  47. Myaeng, S.H., Khoo, C., & Li, Ming. (1994). Linguistic processing of text for a large-scale conceptual information retrieval system. In Tepfenhart, W.M., Dick, J.P., & Sowa, J.F. (Eds.), Conceptual structures: Current practices: Second International Conference on Conceptual Structures, ICCS '94: Proceedings (pp. 69-83). (Lecture Notes in Artificial Intelligence, 835). Berlin: Springer-Verlag.
  48. Khoo, C., Diamond, L., & Verville, J. (1994). Exploring the limits of the framing effect: Decision making at the edges of the frame. In Proceedings: Twenty-Fifth Annual Meeting of the Midwest Decision Sciences Institute (pp. 65-67). Ohio: Decision Sciences Institute.
  49. Myaeng, S.H., & Khoo, C.. (1993). On uncertainty handling in plausible reasoning with conceptual graphs. In H.D. Pfeiffer & T.E. Nagle (Eds.), Conceptual Structures: Theory and Implementation (pp. 1-10). (Lecture Notes in Artificial Intelligence, 754). New York: Springer-Verlag.
  50. Khoo, C., & Poo, D. (1991). An expert system front-end as a solution to the problems of online catalogue searching. In Information Services in the 90s: Congress Papers (pp. 6-13). Singapore: Library Association of Singapore.
  51. Khoo, C., & Yap, S. (1989). CBL: Computer-based learning or computer-based library? In C.C. Chen & D. Raitt (Eds.), 2nd Pacific Conference on New Information Technology: Proceedings (pp. 189?196). West Newton: MicroUse Information.


Book Chapters

  1. Ou, S., Khoo, C., & Goh, D. (2009, in press). Automatic text summarization in digital libraries. In Handbook of research on digital libraries: Design, development, and impact. IGI Global.
  2. Khoo, C., Majid, S., Lin, C.F. (in press). LIS education in Asia. In I. Abdullahi & A.S. Chaudhry (Eds.), Global library and information science. K.G. Saur Verlag.
  3. Khoo, C. (2005). Educating LIS professionals for Singapore and beyond. In J. Tan et al. (Eds.), Celebrating 50 years of librarianship in Malaysia and Singapore (pp. 26-37). Singapore: Library Association of Singapore; Kuala Lumpur: Persatuan Pustakawan Malaysia. [Preprint in PDF]
  4. Poo, D., & Khoo, C. (2003). Online catalog subject searching. In Miriam Drake (Ed.), Encyclopedia of library and information science (2nd ed., pp. 2218-2228). Marcel Dekker. Available at: http://www.dekker.com/servlet/product/DOI/101081EELIS120008863.
  5. Khoo, C., Chan, S., & Niu, Y. (2002). The many facets of the cause-effect relation. In R.Green, C.A. Bean & S.H. Myaeng (Eds.), The semantics of relationships: An interdisciplinary perspective (pp. 51-70). Dordrecht: Kluwer. [Preprint in PDF]
  6. Khoo, C., & Myaeng, S.H. (2002). Identifying semantic relations in text for information retrieval and information extraction. In R.Green, C.A. Bean & S.H. Myaeng (Eds.), The semantics of relationships: An interdisciplinary perspective (pp. 161-180). Dordrecht: Kluwer. [Preprint in PDF]
  7. Poo, D., & Khoo, C. (1997). Subject searching in online catalog systems. In A. Kent (Ed.), Encyclopedia of Library and Information Science (v. 60, suppl. 23, pp. 324-340). New York: Marcel Dekker.