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Web mining applies the data mining, the artificial intelligence and the chart technology and so on to the Web data and traces users' visiting characteristics, and then extracts the userspsila using pattern. This article will study on Web mining algorithm based on usage mining. And it also produces the design mentality of the electronic commerce Web site application algorithm. Web usage mining is an...
Either for hardware or software repairable system, reliability analysis is very important. However, failure data analysis for repairable system is not an easy task. The widely used AMSAA model (power law process) is a kind of NHPP, corresponding to minimal repair. According to the variety of the reliability of repairable systems, accounting for the influences of the modification and repair, the repair...
This paper discusses the concepts of data warehouse technology and its importance for decision support system (DSS). The DSS as one kind smart software system of the important application value, provides, each kind of decision information as well as the commercial question solution for the enterprise. Thus Data warehouse can meet the requirements of the database management subsystems of DSS, and is...
Mature Spathiphyllum sp. plants are grown in soil in pots under clinostatic or stationary condition. Photosynthetic rate falls to almost zero after 30 d in clinostat, but recovers to more than 60% of the original on the 62nd day. Grana in chloroplasts remains normal in clinostat. There are few starch grains in chloroplasts after 30 d in clinostat, and almost none on the 62nd day, but numerous globular...
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