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It is common for real-world applications to analyze big graphs using distributed graph processing systems. Popular in-memory systems require an enormous amount of resources to handle big graphs. While several out-of-core approaches have been proposed for processing big graphs on disk, the high disk I/O overhead could significantly reduce performance. In this paper, we propose GraphH to enable high-performance...
In large-scale cloud computing environments, a multiagent cloud system (MACS) can be developed for effectively managing cloud infrastructure. In principle, a MACS has two essential components, a global agent (GA) and multiple local agents (LAs). The GA dispatches user requests to multiple LAs, while the LAs make optimal resource management strategies for serving user requests received. To develop...
Many cluster management systems (CMSs) have been proposed to share a single cluster with multiple distributed computing systems. However, none of the existing approaches can handle distributed machine learning (ML) workloads given the following criteria: high resource utilization, fair resource allocation and low sharing overhead. To solve this problem, we propose a new CMS named Dorm, incorporating...
Currently, most methods in clinical psychology research primarily rely on questionnaires and interviews with examiners, which could not provide real-life subject behavioral and psychology data monitoring and collecting services. This paper presents a smartphone-based mobile Ambulatory Assessment System, called mAAS, for psychology research, especially alcohol craving studies, to improve current methods...
Video streaming applications have implementation issues when the transmission rate is much less than the video playback rate. Caching the beginning part of the video in large storage device before playing is a common solution. In this paper, we propose a bandwidth allocation scheme on video content distribution servers. This algorithm is aim to control the server sending rate with efficient bandwidth...
The next generation digital video broadcasting network of China will aim at connections of regional metropolises, which introduces problems of content protection among operators. So it is crucial to solve the problem of stream media services for encrypted programs. This paper proposes a time-shifted TV scheme for encrypted DVB programs, in which linear adaptive prediction model is adopted. Suitable...
Caching can improve the browser's efficiency, this paper proposes one distributed sharing model of the browser cache: each end-host's address and the Web site URL address are mapped to the identical key space, the storing information of the shared cache mapped to key k is saved on the same key k mapped end-host; it also presents a distributed lookup protocol with a constant O(1) hop per lookup request,...
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