With the rapid development of IPv6 network, constructing a router-level topology of IPv6 is helpful for network management, network simulation, protocol design, etc. As same as IPv4, the well-known IPv6 topology disco...
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software is an important component of Large Information Weapon. We propose a data-driven distributed automatic testing framework, which is based on the analysis of LIW testing requirements, and it supports the whole p...
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Considerable effort has been spent on collecting all the information of routers by using traceroute-like probes in the router-level topology measurements. This method has been argued to introduce uncontrolled sampling...
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Due to the growing interest in video delivery over unreliable channels, the problem of error concealment in video communication is increasingly important. Our goal is to enable the correct decoding of bitstream, on th...
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Link prediction has attracted a lot of attention in recent years. While most researchers try to find effective prediction methods, they ignore using the key users for friendship expansion. In this paper, we study the ...
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作者：
Quan, FengnanLang, BoBeihang University
State Key Laboratory of Software Development Environment Beijing China Beihang University
State Key Laboratory of Software Development Environment Zhongguancun Laboratory Beijing China
Visual Grounding is an important part of image annotation generation. The existing methods usually use data alignment based on the similarity calculation of visual text features in location inference and multi-modal f...
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Unstructured database serves as a new database targeted mainly at unstructured data management, which addresses the limitations of relational database. In this paper, an unstructured database management system named A...
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The experience of watching real-time high definition videos on mobile devices is greatly limited due to the screen size, especially when people attend real-time videoconferencing meetings via their smart phones. This ...
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ISBN:
(纸本)9781450318938
The experience of watching real-time high definition videos on mobile devices is greatly limited due to the screen size, especially when people attend real-time videoconferencing meetings via their smart phones. This issue could be solved by a ROI (Region of Interest) based scalable video transcoding scheme that displays the ROIs with higher quality and other regions in the same video frame. However, currently most researches on ROI based video adaptation focus on VOD streaming applications rather than real-time videoconferencing. This paper presents a novel scheme of ROI detection and transcoding for mobile devices in video-conferencing system that uses a Kinect based approach to detect ROIs and a ROIenabled transcoding scheme will be used to transcode the video streams by using a re-quantization approach. Experiments shows that with the ROI extraction algorithm and the ROI-enabled transcoding scheme, the bitrate of a video stream can be significantly reduced, while the perceived quality of the video is still good enough. Copyright 2013 ACM.
Texture parsing benefits attribute-based clothing analysis and related applications, such as clothing retrieval and recognition. To deal with the large variations of clothing textures, in this paper, a new method is p...
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Traditionally, data sparsity is seen as a key disadvantage of user-based CF. It is often assumed that data sparsity may cause small number of co-rated items or no such ones between two users, resulting in unreliable o...
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