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This paper characterizes optimal keyword auction mechanism, obtains Revenue Equivalence Theorem for keyword auctions and designs a kind of optimal keyword auction mechanism by considering the variable costs of advertisement positions. Under assumptions that the valuation of advertisement position to the advertiser is
In this paper, we propose a novel text-art system: input a source picture and some keywords introducing the information about the picture, and the output is the so-called PicWords in the form of the source picture composed of the introduction keywords. Different from traditional text-graphics which are created by
According to the deficiency of Chord algorithm supporting single keyword query only, a P2P framework-Z_mirror by combining the Z_mirror and Chord is proposed for managing service resources, which supports DHT-based multi-keyword query and approximate query by means of Z_mirror index to improve resources searching
keyword. This graph is built using a carefully selected one-parameter set of keywords. By varying this parameter - the level of meaningfulness - we transition the document-representing graph from a trivial path graph into a large random graph. During such a conversion, as the parameter is varied over its range, the graph
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.