Single-loop methods based on the Karush–Kuhn–Tucker conditions are considered to be efficient reliability design optimization (RBDO) methods. The probabilistic performance functions converted deterministic for reducing computational burden of analysis. However, most probable target point (MPTP) estimated using steepest descent search directions diverges or oscillates highly nonlinear functions....

This paper investigates the publishing trends of search engine literature as catalogued in the social sciences citation index (SSCI) database in the period 1995-2009. Our findings indicate that (1) the quantity of recent research on search engine study is expanding remarkably; (2) the frequency indices of author productivity appear to abide by Lotka’s Law; (3) most research papers on search eng...

Modern commercial Internet search engines display advertisements along side the search results in response to user queries. Such sponsored search relies on market mechanisms to elicit prices for these advertisements, making use of an auction among advertisers who bid in order to have their ads shown for specific keywords. We present an overview of the current systems for such auctions and also ...

We examined how the salience of color is affected by adaptation to different color distributions. Observers searched for a color target on a dense background of distractors varying along different directions in color space. Prior adaptation to the backgrounds enhanced search on the same background while adaptation to orthogonal background directions slowed detection. Advantages of adaptation we...

Copyright is held by the author/owner(s). CHI 2013 workshop: Changing Perspectives of Time in HCI, April 27, 2013, Paris, France. ACM 978-1-4503-1952-2/13/04. Abstract In this paper we make the case for slowness in search. The main tenet of information seeking today is retrieving the right result rapidly. Developments such as instant search, question answering, and fact sheets strive to further...

Preview search with moving stimuli was investigated. The stimuli moved in multiple directions, and preview items could change either their color or their shape before onset of the new (search) displays. In Experiments 1 and 2, the authors found that (a) a preview benefit occurred even when more than 5 moving items had to be ignored, and (b) color change, but not shape change, disrupted preview ...

We consider random search processes alternating stochastically between diffusion and ballistic motion, in which the distribution function of ballistic motion directions varies from point to point in space. The specific space dependence of the directional distribution together with the switching rates between the two modes of motion establishes a spatially inhomogeneous search strategy. We show ...

Copyright © 2003, Idea Group Publishing. ABSTRACT The World Wide Web now holds more than 800 million pages covering almost all daily issues. The Web’s fast growing size and lack of structural style present a new challenge for information retrieval. Numerous search technologies have been applied to Web search engines; however, the dominant search method has yet to be identified. This chapter pro...