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WebRelievo: A System for Browsing and Analyzing the Evolution of Related Web Pages

WebRelievo is a system for browsing and analyzing the evolution of the web graph structure based on link analysis. This system enables us to answer historical questions, and to detect changes in topics on the Web. WebRelievo extracts web pages related to a focused page using link analysis, and visualizes the evolution of their relationships with a time series of graphs. This visualization enables us to understand when related pages appeared, and how their relationships have evolved over time. The user can interactively browse those related pages by changing the focused page and by changing layouts of graphs. WebRelievo is implemented on six Japanese web archives crawled from 1999 to 2003.