The Web is perhaps the single largest data source in the world. Due to the heterogeneity and lack of structure, mining and integration are challenging.

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Presentation transcript:

The Web is perhaps the single largest data source in the world. Due to the heterogeneity and lack of structure, mining and integration are challenging tasks. Much of the Web mining is about Data/information extraction from semi-structured objects and free text, and Integration of the extracted data/information

Problems Faced By Information Users : Finding Relevant Information Personalization of the information available on the web Learning about customers or individual users

Web Mining is the use of data mining techniques to automatically discover and extract Information from web documents and services The world wide web, www or web is becoming a complex universe. Naturally, deriving something valuable out of it is targeted use of web mining.

Three sub categories : Web Content Mining Web Structure Mining Web Usage Mining

Web Content Mining Web Content Mining refers to the discovery of useful information from the web content Here Content Refers to Text, Audio Video etc. that numerous websites are holding. The data could be unstructured, semi structured or structured

Example of Web Content Mining Typical Google or Yahoo or Microsoft Bing search that we do, and the resultant links listing page we get is an example of content mining. The process of extracting useful information from the web content happens here.

Web Structure Mining Web structure mining is done at the hyper link level. This kind of mining tries to discover the model underlying the link structure of the web. A relevant example can be Google’s Page rank.

Example of Web Structure Mining HITS and Page Rank are applied web structure mining uses.

Web Usage Mining Web usage mining process involves the log time of pages. The world’s largest portal like yahoo, msn etc., needs a lot of insights from the behavior of their users’ web visits. Without this usage reports, it will be difficult to structure their monetization efforts. Usage mining has direct impact on businesses

Example of Web Usage Mining A particular feature of website that is used by the visitors frequently, that we want to enhance and pronounce so as to increase the usage that can appeal more to users of the website Simply by understanding the movement of the guests and the behavior of surfing the net, you can look forward to meet the preferences and the needs in a better manner and popularize your website among the masses in the internet arena.

Web Usage Mining Tools Web Usage Mining tools hold the capability to provide valuable information of the user navigation patterns by analyzing the server and client logs. By processing this data, using simple statistical data or complex data mining techniques, we can identify trends and patterns concerning the activity on the Web

Speedtracer Uses the referrer page and the URL of the requested page to construct traversal path. Each identified user session is mapped into a transaction Data mining techniques are applied in order to discover the most frequent user traversal paths and the most frequently visited groups of pages.

Advantages Identifies individual user sessions. It does not require “cookies” or user registration for session identification. User privacy is protected.

WUM (Web Utilization Miner) Employs an innovative technique for the discovery of navigation patterns over an aggregated materialized view of the web log. It operates on two modules : Aggregation Service which prepares the web log data for mining and MINT-Processor which does the mining.

Thank you!