Abstract
The process of extracting useful knowledge from large datasets has become one of the most pressing problems in today’s society. The problem spans entire sectors, from scientists to intelligence analysts and web users, all of whom are constantly struggling to keep up with the larger and larger amounts of content published every day. With this much data, it is often easy to miss the big picture. In this paper, we investigate methods for automatically connecting the dots – providing a structured, easy way to navigate within a new topic and discover hidden connections. We focus on the news domain: given two news articles, our system automatically ?nds a coherent chain linking them together. For example, it can recover the chain of events leading from the decline of home prices (2007) to the health-care debate (2009). We formalize the characteristics of a good chain and provide ef?cient algorithms to connect two ?xed endpoints. We incorporate user feedback into our framework, allowing the stories to be re?ned and personalized. Finally, we evaluate our algorithm over real news data. Our user studies demonstrate the algorithm’s effectiveness in helping users understanding the news.