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Displaying 1-15 out of 15 total
A Progressive Structural Analysis Approach for Handwritten Chemical Formula Recognition
Found in: 2013 12th International Conference on Document Analysis and Recognition (ICDAR)
By Peng Tang,Siu Cheung Hui,Chi-Wing Fu
Issue Date:August 2013
pp. 359-363
With the recent emergence of pen-based and touch based input devices such as Apple's iPad and Samsung's Galaxy Tablet, it has become more feasible now to input chemical formulas directly by handwriting, which is more natural and efficient than the traditio...
Large-Scale Multiobjective Static Test Generation for Web-Based Testing with Integer Programming
Found in: IEEE Transactions on Learning Technologies
By M. L. Nguyen, Siu Cheung Hui,A. C. M. Fong
Issue Date:January 2013
pp. 46-59
Web-based testing has become a ubiquitous self-assessment method for online learning. One useful feature that is missing from today's web-based testing systems is the reliable capability to fulfill different assessment requirements of students based on a l...
Word Cloud Model for Text Categorization
Found in: Data Mining, IEEE International Conference on
By Tam T. Nguyen,Kuiyu Chang,Siu Cheung Hui
Issue Date:December 2011
pp. 487-496
In centroid-based classification, each class is represented by a prototype or centroid document vector that is formed by averaging all member vectors during the training phase. In the prediction phase, the label of a test document vector is assigned to tha...
Multiple-Step Rule Discovery for Associative Classification
Found in: Artificial Intelligence and Computational Intelligence, International Conference on
By Tien Dung Do, Siu Cheung Hui, Alvis C.M. Fong
Issue Date:November 2009
pp. 365-369
Associative classification has shown great promise over many other classification techniques. However, one of the major problems of using association rule mining for associative classification is the very large search space of possible rules which usually ...
An Ensemble Approach for Semantic Assessment of Summary Writings
Found in: Computer Engineering and Technology, International Conference on
By Yulan He, Siu Cheung Hui, Tho Thanh Quan
Issue Date:January 2009
pp. 490-494
Computer-assisted assessment of summary writings is a challenging area which has recently attracted much interest from the research community. This is mainly due to the advances in other areas such as information extraction and natural language processing ...
Mathematical Document Retrieval for Problem Solving
Found in: Computer Engineering and Technology, International Conference on
By Sidath Harshanath Samarasinghe, Siu Cheung Hui
Issue Date:January 2009
pp. 583-587
Solving mathematical problems is both challenging anddifficult for many students. This paper proposes a documentretrieval approach to help solve mathematical problems. Theproposed approach is based on Kohonen’s Self-Organizing Maps for data clustering of s...
Palmprint Verification for Controlling Access to Shared Computing Resources
Found in: IEEE Pervasive Computing
By Maylor K.H. Leung, A.C.M. Fong, Siu Cheung Hui
Issue Date:October 2007
pp. 40-47
Access security is an important aspect of pervasive computing systems. It offers the system developer and end users a certain degree of trust in the use of shared computing resources. Biometrics offers many advantages over the username-plus-password approa...
An Effective Approach for Periodic Web Personalization
Found in: Web Intelligence, IEEE / WIC / ACM International Conference on
By Baoyao Zhou, Siu Cheung Hui, Alvis C.M. Fong
Issue Date:December 2006
pp. 284-292
Periodic web personalization aims to recommend the most relevant resources to a user during a specific time period by analyzing the periodic access patterns of the user from web usage logs. In this paper, we propose a novel web usage mining approach for su...
Automatic Fuzzy Ontology Generation for Semantic Web
Found in: IEEE Transactions on Knowledge and Data Engineering
By Quan Thanh Tho, Siu Cheung Hui, A.C.M. Fong, Tru Hoang Cao
Issue Date:June 2006
pp. 842-856
Ontology is an effective conceptualism commonly used for the Semantic Web. Fuzzy logic can be incorporated to ontology to represent uncertainty information. Typically, fuzzy ontology is generated from a predefined concept hierarchy. However, to construct a...
Enhancing Mobile Web Access Using Intelligent Recommendations
Found in: IEEE Intelligent Systems
By Baoyao Zhou, Siu Cheung Hui, Kuiyu Chang
Issue Date:January 2006
pp. 28-34
As mobile phones continue to infiltrate the world, they could easily become the Internet client of choice—especially considering widespread adoption of third-generation mobile services. Although the mobile phone?s disproportionately small screen is ill-sui...
Discovering and Visualizing Temporal-Based Web Access Behavior
Found in: Web Intelligence, IEEE / WIC / ACM International Conference on
By Baoyao Zhou, Siu Cheung Hui, Alvis C. M. Fong
Issue Date:September 2005
pp. 297-300
Discovering and understanding web users? surfing behavior are essential for the development of successful web monitoring and recommendation systems. In this paper, we propose a web usage mining approach for the automatic discovery and visualization of temp...
Intelligent Content-Based Retrieval for P2P Networks
Found in: Cyberworlds, International Conference on
By Rodionov Maxim, Siu Cheung Hui
Issue Date:December 2003
pp. 318
Currently, most peer-to-peer (P2P) systems are designed for file sharing by network participants. Simple meta-data search mechanism will be sufficient to support searching and retrieving shared files over P2P networks. However, to share document informatio...
A Web Mining Approach for Finding Expertise in Research Areas
Found in: Cyberworlds, International Conference on
By Quan Thanh Tho, Siu Cheung Hui, A.C.M. Fong
Issue Date:December 2003
pp. 310
Finding expertise in a research area helps researchers to know whom are the experts working on the research area. This paper proposes a web mining approach for finding expertise in scientific research areas. In this approach, Indexing Agents search and dow...
A syntactic business form classifier
Found in: Document Analysis and Recognition, International Conference on
By A. Ting, M.K. Leung, Siu-Cheung Hui, Kai-Yun Chan
Issue Date:August 1995
pp. 301
A classifier is proposed in this paper to extract structural information from business forms. The classifier is built upon existing techniques and takes advantage of the highly structured nature of forms, containing lines, boxes and text. Improvements are ...
A math-aware search engine for math question answering system
Found in: Proceedings of the 21st ACM international conference on Information and knowledge management (CIKM '12)
By Kuiyu Chang, Siu Cheung Hui, Tam T. Nguyen
Issue Date:October 2012
pp. 724-733
We propose a math-aware search engine that is capable of handling both textual keywords as well as mathematical expressions. Our math feature extraction and representation framework captures the semantics of math expressions via a Finite State Machine mode...