We study a multi-unit auction environment similar to eBay. Sellers, each with a single unit of a homogenous good, set reserve prices at their own independent second-price auctions. Each buyer has a private value for the good and wishes to acquire a single unit. Buyers can bid as often as they like and move between the sellers’ auctions in a dynamic environment. We characterize a perfect Bayesia...

Article history: Received 31 October 2010 Available online 18 May 2012 Communicated by S. Sarkar

The core of a cooperative game on a set of players N is one of the most popular concept of solution. When cooperation is restricted (feasible coalitions form a subcollection F of 2 ), the core may become unbounded, which makes it usage questionable in practice. Our proposal is to make the core bounded by turning some of the inequalities defining the core into equalities (additional efficiency c...

Various parameters are studied in video-stream traffic surveillance. Weather conditions are one of the most important parameters, influencing the quality of traffic surveillance in any microlocation, such as the town of Metković in this study. This paper examines the influence of weather conditions on traffic surveillance based on the collection of visual data. The quality of the system was tes...

1. OPEN INNOVATION Open innovation was defined by Henry Ches-broug, a professor at Harvard Business School, in 2003. He believes that in an open innovation model, companies should use internal and external strength to develop new products and to commercialize them (Chesbrough, 2005). Figure 1 shows the open innovation model. In the closed innovation model, the steps from new products developmen...

Although robust object tracking has a wide variety of applications ranging from video surveillance to recognition from motion, it is not completely solved. Difficulties in tracking objects arise due to abrupt object motion, changing appearance of the object or partial and full object occlusions. To resolve these problems, assumptions are usually made concerning the motion or appearance of an ob...

In the area of video surveillance, tracking model for multiple object video is still a challenging task since the objects are usually affected with inter-object occlusion, object confusion, different posing, environment with heavy clutter, small size of objects, similar appearance among objects, and interaction among the multiple objects In order to alleviate these challenges, literature presen...

We present an algebraic treatment of the correspondence of gaps and dualities in partial ordered classes induced by the morphism structures of certain categories which we call Heyting (such are for instance all cartesian closed categories, but there are other important examples). This allows to extend the results of [14] to a wide range of more general structures. Also, we introduce a notion of...