Compare&contrast: using the web to discover comparable cases for news stories

Comparing and contrasting is an important strategy people employ to understand new situations and create solutions for new problems. Similar events can provide hints for problem solving, as well as larger contexts for understanding the specific circumstances of an event. Lessons can leaned from past experience, insights can be gained about the new situation from familiar examples, and trends can be discovered among similar events. As the largest knowledge base for human beings, the Web provides both an opportunity and a challenge to discover comparable cases in order to facilitate situation analysis and problem solving. In this paper, we present Compare&Contrast, a system that uses the Web to discover comparable cases for news stories, documents about similar situations but involving distinct entities. The system analyzes a news story given by the user and builds a model of the story. With the story model, the system dynamically discovers entities comparable to the main entity in ...

• Type: Conference
• Year: 2007
• Where: WWW
• Authors: Jiahui Liu, Earl Wagner, Larry Birnbaum
• Keywords: Comparable Cases, Comparable Entities, Intelligent Information Retrieval, Internet Technology, WWW 2007