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With the rapid increasing impact of the mobile Internet on people's daily life, accessing the Internet via mobile devices is showing an obvious trend, which brings a large amount of network traffic at the same time. This paper analyzes HTTP traffic characteristics based on real world data collected from a commercial Internet Service Provider (ISP) in charge of some regions of China. We investigate...
Remote Authentication Dial In User Service (RADIUS) is a widespread used Authentication, Authorization and Accounting (AAA) protocol. With RADIUS, the network users are able to access the Internet in security and the operators can record the information of network activity such as login time, logout time and traffic, etc. This paper presents some observations of the real operational CDMA network in...
Cognitive load exist in any mode of study, it is a very important factor in the affection on the learning effect. By comparison to other learning style, the cognitive load of the students who study online seemed heavier. According the character of online study, to avoid the unconcerned information processing, to spiriting the leaning motivation, the memory activities' transferring and the cognitive...
Current large scale image retrieval engines rely heavily on the surrounding text information, which inevitably includes some irrelevant images in the retrieval results due to the noisy environment. To improve the retrieval performance, we propose an unsupervised web image re-ranking method by incorporating images' visual information. Our method can automatically select a set of representative images...
This paper describes a semantic retrieval system that allows matchmaking with ranked output and the use of multi-modality ontology to retrieve animal images. Our multi-modality ontology, which integrates both image features and text information, is extended to provide a ranking mechanism. Ranking is calculated from correlation in each modality and is used to refine the semantic matchmaking result...
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