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In product reviews, it is observed that the distribution of polarity ratings over reviews written by different users or evaluated based on different products are often skewed in the real world. As such, incorporating user and product information would be helpful for the task of sentiment classification of reviews. However, existing approaches ignored the temporal nature of reviews posted by the same...
EAST-ADL is an architectural description language dedicated to safety-critical automotive embedded system design. We have previously developed a translator, called A-BeTA, transforming timed behavioral constraints in EAST-ADL into the analyzable UPPAAL models. In this paper, we extend the previous work by including support for Stateflow, which is used to design event-driven systems via hierarchical...
Design of power delivery system has great influence on the power management in many-core processor systems. Moving voltage regulators from off-chip to on-chip gains more and more interest in the power delivery system design, because it is able to provide fast voltage scaling and multiple power domains. Previous works are proposed to implement power efficient on-chip regulators. It is also important...
IEEE 802.16 is a promising technology in broadband wireless access area. In this paper, a novel performance analysis model is provided focusing on the VoIP services in TDD OFDMA-based IEEE 802.16 system. Based on the analysis results, a united packet aggregation scheme for both uplink and downlink is provided. The simulation results show that the packet aggregation in MAC layer not only improves the...
It is the key problems in 3D model retrieval to obtain good feature and classify models efficiently. Although many feature extraction methods have been proposed, none is adapted to all models. Moreover, it still relies on manual work to classify models. To solve these problems, firstly, the paper proposes a series of selective combination methods which automatically decide each feature's appropriate...
IEEE 802.16 is a promising technology in broadband wireless access area. In multiservice IEEE 802.16 network, connection admission control (CAC) plays a critical role for resource management and QoS guarantee. In this paper, a statistical CAC mechanism is proposed for IEEE 802.16 network. In order to avoid the QoS degradation, the proposed CAC mechanism considers the traffic variability and overflow...
Security trust model is an important research topic for the P2P application. This paper firstly analyzes the existing P2P network security trust models, and then puts forward a new P2P recommendation trust model based on the network of social relationships. The model provides different types of services to show the userpsilas interest in different areas, and gives recommendation based on the interested...
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