TY - JOUR T1 - NetLens: Iterative Exploration of Content-Actor Network Data JF - Information VisualizationInformation Visualization Y1 - 2007 A1 - Kang,Hyunmo A1 - Plaisant, Catherine A1 - Lee,Bongshin A1 - Bederson, Benjamin B. KW - content-actor network data KW - digital library KW - incremental data exploration KW - iterative query refinement KW - User interfaces AB - Networks have remained a challenge for information retrieval and visualization because of the rich set of tasks that users want to accomplish. This paper offers an abstract Content-Actor network data model, a classification of tasks, and a tool to support them. The NetLens interface was designed around the abstract Content-Actor network data model to allow users to pose a series of elementary queries and iteratively refine visual overviews and sorted lists. This enables the support of complex queries that are traditionally hard to specify. NetLens is general and scalable in that it applies to any data set that can be represented with our abstract data model. This paper describes the use of NetLens with a subset of the ACM Digital Library consisting of about 4000 papers from the CHI conference written by about 6000 authors, and reports on a usability study with nine participants. VL - 6 SN - 1473-8716, 1473-8724 UR - http://ivi.sagepub.com/content/6/1/18 CP - 1 M3 - 10.1057/palgrave.ivs.9500143 ER -