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Chen J.,Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education | Chen J.,Anhui University | Chen J.,Anhui Science and Technology University | Zhao S.,Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education | And 5 more authors.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2015

Three-way decision theory divides all samples into three regions: positive region, negative region and boundary region. A lack of detailed information may make a definite decision impossible for samples in boundary region. These samples may be further handled by using new information. In this paper, we propose a method Multi-View Decision Model based on constructive three-way decision theory. Multi-view Decision Model mines the global information of all samples for decision. All samples firstly are decided by MinCA, which builds the min covers for each class. Then samples in boundary region are classified using Multi-view information. Experiments have shown that in most cases, Multi-View Decision Model is beneficial for reducing boundary region and promoting classification precision. © Springer International Publishing Switzerland 2015.


Zhang Y.,Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education | Zhang Y.,Anhui Science and Technology University | Zou H.,Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education | Zou H.,Anhui Science and Technology University | And 6 more authors.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2014

The concept of three-way decisions was proposed by Yao and most of three-way decisions models use two thresholds α and β to partition the universe into three parts: the positive region POS(X), the negative region NEG(X) and the boundary region BND(X). But acquirement of a pair of thresholds is a challenge. In this paper, we propose a new method to get the thresholds of three-way decisions model. We introduce loss function into three-way decisions model based on constructive covering algorithm (CCA). A loss function is interpreted as the costs of making classification decisions. More specifically, for reducing losses of classification, we change the radius of the cover according to the loss function, then we compute the thresholds based on the modification. This paper propose an effective method to compute thresholds α and β, which is according to cost-sensitive three-way decisions model based on CCA. © 2014 Springer International Publishing.


Xie Y.,Anhui University | Xie Y.,Anhui Science and Technology University | Xie Y.,Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education | Xu R.,Anhui Science and Technology University | And 3 more authors.
Journal of Computers (Finland) | Year: 2013

The paper presents a vision-based natural bare-hand gesture recognition for remote operating LTSS, which offers simple, high resolution and robust against occlusion. The system is a kind of embedded systems that combines the hardware and software design. It allows users to interact with the information by pointing large screen directly with their fingertips approximately parallel to ground. The key technology of the system is fingertip recognition, tracking, computer vision algorithms and operation judgment. Experiments show that our approach extremely suit to be embedded into real-time human-computer interaction systems. © 2013 ACADEMY PUBLISHER.

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