Yin Chan

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In this paper, we introduce a feature-based approach for image retrieval by sketch. Using edge segments as features which are modeled by implicit polynomials(IPs), we hope to provide a similarity computation method that is robust towards user query sketch distortions. We report some preliminary results of the first phase of our work in this paper. From(More)
This study was carried out to determine the effects of hepatitis B virus genotypes, core promoter mutations (A1762G1764-->T1762A1764) as well as precore stop codon mutations (TGG-->TAG) on HBeAg expression and HBeAg/ anti-HBe status. Study was also performed on the effects of codon 15 variants (C1858/ T1858) on the predisposition of precore stop codon(More)
The SPEC CINT92 and CFP92 benchmark suites are application-based system benchmarks primarily intended for workstation-class system performance measurements. The SPEC CPU benchmark results are widely disseminated by system vendors and as such have become the de-facto standard for comparing system performance. Recently, many observers have expressed concerns(More)
Organisation-based programming promises that it can facilitate the development and management of dynamic and flexible software systems with high-level organisational abstractions. However, the adoption of such approach in industry has been sluggish, largely due to the lack of efficient programming languages and their supporting platforms. Oragentburg is a(More)
Detection of a (deformable) pattern or object is an important machine learning and computer vision problem. The task involves nding a speciic (but locally deformable) patterns in images, such as human faces and eyes/mouths. They have many important commercial applications including ATM, access control, surveillance, video conferencing, and video libraries.(More)