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In online social networks such as Face book, people receive friend recommendations that are based usually on common friends or similar profile such as having the same interest or coming from the same company. However, people receive friend spam in which they do not know why they should add this friend. If we can record the physical context then we can determine how you met that person, and use that...
With the ever increasing number of functional similar web services being made available on the Internet, how to leverage, aggregate and make use of individual component's quality of service(QoS) information to derive the optimal QoS of the composite service which meets the needs of users is still an ongoing hot research problem. In this paper, the current QoS models and related calculation methods...
Popular Chinese text classification algorithms are mostly based on word frequency statistics features, ignoring the characteristics of Chinese text between the semantic relevance. To further improve the Chinese text classification results, the paper presents a new semantic-based kernel of SVM algorithm for Chinese text classification, through simple idea and smaller implementation costs. Experiments...
One of the thrilling uses of Web services lies in Web service composition, which integrates existing services into composite ones with higher usage. With increasing complexity of service composition, semantic information, which is well-regulated and easy to be retrieved, has been applied in Web service composition. And QoS has become a critical issue to evaluate the performance of Web applications...
To satisfy the requirement of making scientific decision quickly and correctly in distributed network environment, a Meta Web Service based Distributed Model Management and Composition Approach is proposed. The Overall framework of Meta web service is designed, and each component is analyzed. An improved model service matching algorithm is given. Utilizing backward reasoning technique to compose model...
In low duty-cycle sensor networks, sensors sleep most of their time; it is consequently hard for sensors to maintain always-awake communication links. One major challenge is therefore to design communication algorithms to reduce the delivery delay. In this paper we propose and evaluate a delay-aware routing algorithm for low duty-cycle sensor networks. The proposed algorithm first organizes the network...
Internet public opinions receive more and more attention currently as such opinions impact much more on government decision making and the entire social opinion. The accuracy validation and tendency analysis on some critical Internet public opinions become more important for government and social to understand the status accurately. In this paper, a quick tendency forecast method is proposed and implemented...
Information security is essential for laboratory management in high education. Harmful web pages should be identified and filtered out so as to build a healthy online learning environment. This paper introduces a laboratory information security management system and a harmful information identification algorithm to determine the original harmful web page.
In this paper, a multi-objective PSO algorithm based on escalating strategy will be proposed. The main idea of this escalating strategy is to re-generate the whole evolutionary population with some technology, which results in a new population significantly indifferent from the old one while inheriting the evolutionary information from the history. By this way, the performance on global convergence...
QoS (Quality-of-Service) has become a critical issue to guarantee the performance of service oriented systems (SOS). However, efficient ways to build SOS with required QoS are still being developed. In most cases of SOS, developers are more concerned on the service functionalities than QoS. In this paper, we propose a QoS-driven service composition approach to efficiently build SOS with optimal QoS...
An integrated method of CAD, CAE and multi-objective optimization is proposed in this paper. It integrated prototype modeling, FEM analysis and optimization procedures. In this method to design a new product, only inputs and outputs need to be defined, which resembles to a black-box. In order to validate this method, design and optimization of a manipulator in a cherry-picker are developed as a case...
This paper proposes a union algorithm of SLM and PTS to reduce PAPR in OFDM system. The simulation results show that the union algorithm can better reduce the complexity of OFDM than traditional SLM or PTS algorithm, and equally effective in restraining the growth of the PAPR.
Semantic information, which is well-regulated and easy to be retrieved, has greatly enriched the expressive ability of the Web. These advantages can be applied in Web Services to meet the increasing complexity of Web applications. In this paper, we propose a service composition approach. It combines the large-scaled Web Services and semantic information which is described in WSCpsila09. Besides, QoS...
A well arranged task priority in dual-shore collaborative software design phase will smooth the collaboration and reduces the potential coordination lag. However, it is really difficult to determine the priority when there are many collaboration tasks and the collaborative process is a little complicated. On the basis of behavior compatibility analysis using Petri-net, this paper proposed yet a new...
Verification of services compatibility is an important issue in Web Services composition. With the growing of grain size, services will become more complicated with internal business processes and will have interactions with other services while composition.This paper proposed a Petri Net based approach to analyze the Web Services interactive behaviors compatibility. First, the interacting services...
Service dependency graph (SDG) is an AND/OR graph showing input output dependencies among service operations. As dependencies in an SDG are indirectly expressed by reasoning on data models used by service interface definitions, their re-usability and expressiveness are limited. In this paper, we propose an enhanced version of service dependency graph, namely SDG+. SDG+ enhances SDG with explicit dependency...
As SOC and Web service technology become more widely used, large amounts of services need to be efficiently and effectively composed to meet complex businesses. In this paper, we proposed an approach to resolve the composition problem over large-scale services. We used an inverted table as index for a quick service discovery, and applied a service dependency graph (SDG) and an AND/OR graph as the...
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