The study of peer selection mechanisms presents a unique opportunity to understand and improve the practice of a group selecting its best members, despite each member of that group wanting to be selected. A prime example of such a setting is academic ...

This is the ninth annual collection of profiles of the junior faculty job market candidates of the SIGecom community. The twenty seven candidates for 2024 are listed alphabetically and indexed by research areas that define the interests of the community. ...

Internet search companies generate the majority of their multibillion dollar revenue from selling ad placement, often in the form of short, textual ads that appear next to web search results. Such sponsored search ads are typically sold via pay-per-...

In this letter, we outline a new approach to modeling, analyzing, and combating manipulative attacks on recommender systems.

We investigate market forces that would lead to the emergence of new classes of players in the sponsored search advertising market. We report a multi-fold diversification triggered by an inherent feature of the sponsored search market, namely, capacity ...

In this paper, two combinatorial exchange mechanisms MACE and GreedEx are introduced that are suitable for resource allocation in service-oriented environments such as Grids. MACE provides users with a fairly complex bidding language offering ...

While the fundamental premise of peer-to-peer (P2P) systems is that of voluntary resource sharing among individual peers, there is an inherent tension between individual rationality and collective welfare that threatens the viability of these systems. ...

Tit-for-tat style file sharing systems such as BitTorrent have proven to be remarkably effective in dealing with highly popular content. By explicitly addressing free-riding behavior, a "greedy" tit-for-tat approach encourages sharing and succeeds in ...

In this paper we address the issue of content availability in p2p file sharing systems. Content availability is a public good: the copying of a file by one peer does not prevent another peer also from copying it; but contributing files to the common ...

Providing efficient mechanism for allocation and management of resources is essential for realizing a computational grid. Since resource providers and consumers may be independent bodies in a computing grid platform, negotiation among these participants ...

Data traveling along the Internet wire is generally unrestricted. The Internet may always bring surfers fun, but sometimes give them unpleasant experiences. Web surfers may be exposed to gory pictures of adult-oriented contents unwittingly. ...

This paper investigates the context representation of ad hoc product data that distribute in different semantic communities especially in small and medium sized enterprises through the analysis of the problems in extracting, mediating and comparing ...

Wireless positioning determination has received increased attention during the past few years. Several wireless applications have been envisaged when mobile terminal location can be determined with sufficient accuracy at any time. In this paper, we ...

There has been a notable increase in consumer use of mobile applications. Consumers begin to adopt mobile commerce applications. In response, firms have been investing billions of dollars in order to enhance the hardware and software platforms for ...

Pervasive environments are characterized by the presence of wireless devices ranging from sensors to mobile PDA-phones to laptops. Peer-to-Peer (P2P) information sharing in such environments presents a tremendous opportunity for people and devices to ...

Peer-to-Peer (P2P) file sharing software has brought a hot discussion on P2P file sharing among all businesses. Freenet, Gnutella, and Napster are the three most popular P2P file sharing applications. They use three distinct protocols and these ...

Web-based commerce is rife with scenarios where a party needs to trust properties of computation and data storage occurring at a remote machine, operated by a different party with different interests. In our WebALPS project, we have used off-the-shelf ...

With the advent of e-commerce, web shops - where a potential buyer can make a purchase transaction on the web - are becoming commonplace. In everyday life, as buyers we face a typical need for matching or coordinating a host of articles/services before ...

The heterogeneity of product descriptions is an impediment to successful interactions among buyers and vendors in electronic commerce. There is no uniform description even for the same product type among different vendors. In electronic commerce ...