Yuan-Fang Wang

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Irene T. Weber57
Arun K Ghosh36
Hiroaki Mitsuya28
Andrew Zisserman27
Robert W Harrison25
78Irene T. Weber
46Arun K. Ghosh
40Robert W. Harrison
34Johnson Agniswamy
26Hiroaki Mitsuya

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2017
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Adaptive Stream Resource Management Using Kalman Filters
To answer user queries efficiently, a stream management system must handle continuous, high-volume, possibly noisy, and time-varying data streams. One major research area in stream management seeks to allocate resources (such as network bandwidth and memory) to query plans, either to minimize resource usage under a precision requirement, or to maximize… (More)
The use of bigrams to enhance text categorization
In this paper, we present an efficient text categorization algorithm that generates bigrams selectively by looking for ones that have an especially good chance of being useful. The algorithm uses the information gain metric, combined with various frequency thresholds. The bigrams, along with unigrams, are then given as features to two different classifiers:… (More)
An Eigenspace Update Algorithm for Image Analysis
During the past few years several interesting applications of eigenspace representation of images have been proposed. These include face recognition, video coding, and pose estimation. However, the vision research community has largely overlooked parallel developments in signal processing and numerical linear algebra concerning efficient eigenspace updating… (More)
CTSS: A Robust and Efficient Method for Protein Structure Alignment Based on Local Geometrical and Biological Features
We present a new method for conducting protein structure similarity searches, which improves on the accuracy, robustness, and efficiency of some existing techniques. Our method is grounded in the theory of differential geometry on 3D space curve matching. We generate shape signatures for proteins that are invariant (i.e., they are not affected by the… (More)
Efficient molecular surface generation using level-set methods.
Molecules interact through their surface residues. Calculation of the molecular surface of a protein structure is thus an important step for a detailed functional analysis. One of the main considerations in comparing existing methods for molecular surface computations is their speed. Most of the methods that produce satisfying results for small molecules… (More)
Learning a Mahalanobis Distance-Based Dynamic Time Warping Measure for Multivariate Time Series Classification
Multivariate time series (MTS) datasets broadly exist in numerous fields, including health care, multimedia, finance, and biometrics. How to classify MTS accurately has become a hot research topic since it is an important element in many computer vision and pattern recognition applications. In this paper, we propose a Mahalanobis distance-based dynamic time… (More)
Effectiveness of nonpeptide clinical inhibitor TMC-114 on HIV-1 protease with highly drug resistant mutations D30N, I50V, and L90M.
The potent new antiviral inhibitor TMC-114 (UIC-94017) of HIV-1 protease (PR) has been studied with three PR variants containing single mutations D30N, I50V, and L90M, which provide resistance to the major clinical inhibitors. The inhibition constants (K(i)) of TMC-114 for mutants PR(D30N), PR(I50V), and PR(L90M) were 30-, 9-, and 0.14-fold, respectively,… (More)
Human activity detection and recognition for video surveillance
We present a framework for detecting and recognizing human activities for outdoor video surveillance applications. Our research makes the following contributions: For activity detection and tracking, we improve robustness by providing intelligent control and fail-over mechanisms, built on top of low-level motion detection algorithms such as frame… (More)
Geometric and Illumination Invariants for Object Recognition
We propose invariant formulations that can potentially be combined into a single system. In particular, we describe a framework for computing invariant features which are insensitive t o rigid motion, ane transform, changes of parameterization and scene illumination, perspective transform, and view point change. This is unlike most current research on image… (More)