Our methodology is a close examination of collection statistics, including custom monitoring scripts on the server, as well as an analysis of the contents of user-generated metadata embedded within the Archives. The over 4500 LSMs in the Archives then provide a demographic profile of contributors of LSM-accompanied software as well as other information on this broad subset of the Linux community. To explore repository evolution directly, an instrumented Linux Archives mirror was developed, and aggregate statistics on content changes seen over a month-long period are reported. In sum, our results quantify aspects of the global Linux development effort in dimensions that have not been documented before now, as well as providing a guide for more detailed future studies. Content Locality in Time-Ordered Document Collections , September 13, 1999.
Many TREC topics show time-based clustering of relevant documents.
We denote this clustering content locality and provide a simple metric for its measurement in time-ordered document collections. There is a marked positive correlation between content locality measurements from two time-sychronized data sources. Given this correlation, we show that knowledge of the distribution of content locality in one document source can provide modest improvement in retrieval results in a companion, time-synchronized document source. While this data is preliminary, it illustrates the potential of using time as an additional feature in retrieval. Brunk, Benjamin D. Overview and Preview Tools for Navigating the World-Wide Web , July 31, 1999.