Abstract. The paper presents a description of the FMD BioPortal biosurveillance system (http://fmd.ucdavis.edu/bioportal/) that is currently operating to capture, analyze, and diss...
In this paper, we present the application of a quality evaluation framework assessing the multiple dimensions that might affect users' satisfaction from a web portal. The fra...
Improving the usability of government portal sites requires a focus shift from system to user in both research and design. Empirical studies into user behavior are needed to suppor...
The SkyServer is an Internet portal to the Sloan Digital Sky Survey Catalog Archive Server. From 2001 to 2006, there were a million visitors in 3 million sessions generating 170 mi...
Vik Singh, Jim Gray, Ani Thakar, Alexander S. Szal...
Users frequently modify a previous search query in hope of retrieving better results. These modifications are called query reformulations or query refinements. Existing research h...