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In large organizations and small firms in transportation, there is a growing need to use and analyze spatial data. Transportation system analysis and planning as well as mobility studies frequently use Geographic Information Systems (GIS). In this paper we propose the development of a web services platform dedicated to transportation and logistics. Taking advantage of the web services development...
In this paper we propose a web log mining-based network user behavior analysis scheme, which plays an important role in network structure optimization and website server configuration. Based on clustering and regression model, we studied the network user's visit model in a university by analyzing a large amount of web log data which is collected from the university campus network. The data analyzing...
The degree of automation is high in process industry. In order to find solutions to complicated technical problems in chemical product development and manufacture process, an experimental platform is presented for process operation system information integration. In this paper, the theory and methodology of information integration of process industry is discussed. A data integration model is presented...
The paper proposes a model which allows integration of services published by independent providers into scientific or business workflows. Optimization algorithms are proposed for both distribution of input data for parallel processing and service selection within the workflow. Furthermore, the author has implemented a workflow editor and execution engine on a platform called BeesyCluster which allows...
Return network traffic (from servers to clients) in thin-client systems is modeled as a mixture of interactive data flows corresponding to keystrokes and bulk data flows related to screen updates. Users are very sensitive to delay and jitter of the former flows. Thus our goal is to minimize the latency of interactive data transfer without increasing latency of bulk data transfer. Through simulation...
Hypothetical queries evaluate the effect of adopting or changing some strategy then aiding in decision making. Hypothetical queries simulate some modifications and assess the effect. But in OLAP environments modify data will result in cube recomputation which cost heavily. Through observing and analyzing, hypothetical queries are described as follows: first, dicing the needing hypothetical modified...
Data communication is deeply studied to solve the real-time property and the stability of the data communication that is the key problem in the battle damage simulation system, following the logic process of data generating, sending, transmitting, receiving. Meanwhile, a series of optimized methods are proposed from the aspects of communication interface, communication server working model, concurrent...
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