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This electronic Some fraudulent register user could destroy the internet transaction environment in e-business. In this paper we could identify malicious user by trust mechanism based on reputation to calculate user's confidence. This availability of such a mechanism depends on the method of calculating confidence, the accurate of confidence mechanism and its anti-attack ablity. Reputation: the user's...
Cloud computing is an emerging computing paradigm. It aims to share data valuations, and services transparently among users of a massive grid. It became a hot issue for its advantage such as "reduce costs", "increase business flexibility" and/or "provide business continuity". We study methods to discuss the cloud computing opportunity for Chinese IT industry. Build a...
In deep web, a significant amount of information can only be accessed through query interface of a back-end database, however, general search engine can not interact with the query interface, resulting in the myriad hidden and unvisible information can not be accessed. Therefore, this paper proposes a novel method of filling forms of deep web entries by importing ontology technique. Firstly, construct...
Large-scale image training set is the precondition of large numbers of various images' semantic annotation. However, due to the absence of image content, state-of-the-art text-based Web image searching engine's results can't serve as image set directly. In this paper, we propose a novel framework for large-scale image set construction, which is based on re-ranking current text-based Web image searching...
In this paper, we propose a novel framework of large-scale and real-time image annotation system. The large-scale image set is constructed based on current Web image search engines and re-ranking algorithm. Various global and local features are employed for representing images with parallel extraction mechanism for the real-time requirements. At training stage, the distance between class centers in...
Video annotation is very important for video management, such as video retrieval. Despite continuous efforts in inventing new annotation algorithms, the annotation performance is usually unsatisfactory, and the annotation vocabulary is still limited due to the use of a small scale training set. In this paper, a novel video annotation framework based on the video object is presented, named object-based...
The advance of image capture device and the popularity of the Internet have made the World Wide Web the biggest and most diverse repository of images. How to retrieve images fast and accurately from the WWW has become an urgent problem to be solved. Although many commercial Web image search engine has come forth, the precision is not satisfying for the reason that the text in the pages which they...
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