F. Mohammadi

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In this article, we generalize the Legendre wavelets operational matrix of derivatives to fractional order derivatives in the Caputo sense. Legendre wavelets and their properties are employed for deriving Legendre wavelets operational matrix of fractional derivatives and a general procedure for forming this matrix is introduced. Then truncated Legendre(More)
Focused crawlers are programs designed to browse the Web and download pages on a specific topic. They are used for answering user queries or for building digital libraries on a topic specified by the user. In this article we will show how summarizing of web pages is needed for improving performance of a crawler which uses vector space model to rank the web(More)
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