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Author: Admin | 2025-04-28
DATA MININGUNIT-VAdvanced Concepts: Basic concepts in mining data streams–Mining Time–series data––Mining sequence patterns in Transactional databases– MiningObject– Spatial– Multimedia–Text and Web data – Spatial Data mining–Multimedia Data mining–Text Mining– Mining the World Wide Web.Web MiningWeb mining is the application of data mining techniques to extract knowledgefrom web data, including web documents, hyperlinks between documents,usage logs of websites, etc.Web mining aims to discover and retrieve useful and interesting patternsfrom large data sets and classic data mining. Big data act as data sets on web mining. Web data includes information,documents, structure, and profile. Web mining is based on two concepts:process-based and data-driven.In general, the use of web mining typically involves several steps, such as Collecting data, Selecting the data before processing,Knowledge discovery, Analysis.In general, Web mining tasks can be classified into three categories:1. Web content mining2. Web structure mining3. Web usage miningAll three categories focus on the process of knowledge discovery of implicit,previously unknown, and potentially useful information from the web. What is Web Content Mining?Web Content Mining can be used for the mining of useful data, information,and knowledge from web page content. Web content mining performs scanning and mining of the text, images, andgroup of web pages according to the content of the input by displaying the listin search engines.It is also quite different from data mining because web data are mainly semi-structured, while data mining deals primarily with structured data. 1
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