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Article
Unsupervised feature selection via joint local learning and group sparse regression
Feature selection has attracted a great deal of interest over the past decades. By selecting meaningful feature subsets, the performance of learning algorithms can be effectively improved. Because label inform...
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Article
Finding map regions with high density of query keywords
We consider the problem of finding map regions that best match query keywords. This region search problem can be applied in many practical scenarios such as shop** recommendation, searching for tourist attra...
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Article
A sampling method based on URL clustering for fast web accessibility evaluation
When evaluating the accessibility of a large website, we rely on sampling methods to reduce the cost of evaluation. This may lead to a biased evaluation when the distribution of checkpoint violations in a webs...
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Article
Sensor network architecture for intelligent high-speed train on-board monitoring
The China’s high-speed railway is experiencing a rapid growth. Its operating mileage and the number of operating trains will exceed 45 000 km and 1500 trains by 2015, respectively. During the long range and co...
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Article
Online detection of bursty events and their evolution in news streams
Online monitoring of temporally-sequenced news streams for interesting patterns and trends has gained popularity in the last decade. In this paper, we study a particular news stream monitoring task: timely det...
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Article
On-line topical importance estimation: an effective focused crawling algorithm combining link and content analysis
Focused crawling is an important technique for topical resource discovery on the Web. The key issue in focused crawling is to prioritize uncrawled uniform resource locators (URLs) in the frontier to focus the ...
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Article
A novel dependency language model for information retrieval
This paper explores the application of term dependency in information retrieval (IR) and proposes a novel dependency retrieval model. This retrieval model suggests an extension to the existing language modelin...
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Article
Fast mode decision algorithm for spatial resolutions down-scaling transcoding to H.264
A fast mode decision algorithm is proposed in this paper to accelerate the process of transcoding videos into H.264 with arbitrary rate spatial resolution down-scaling. The proposed algorithm consists of three...
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Article
A framework to create video-transition effects
The paper presents a framework for develo** a variety of video transition effects. The framework is designed to deal with the problem of inefficiency for programmers to generate more and more diversified vid...
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Article
A color based face detection system using multiple templates
A color based system using multiple templates was developed and implemented for detecting human faces in color images. The algorithm consists of three image processing steps. The first step is human skin color...
