Trust in distributed systems is an inherently difficult problem, as nodes need to decide which other nodes to trust without a central, verifiably trusted authority. This paper evaluates the notion of a distributed sub-network of trust aggregators based on the NICE trust cookie and trust chain system. The aggregators simply keep the trust cookies, which prove delivery of a resource during a tran...

Interoperable Grid monitoring has been a hot topic since many years (Wolski et al 1999, Michael and Philip 2002). Standardization efforts have been made by the Open Grid Forum with respect to monitoring architecture (Zanikolas et al 2005) and data schema. Grid middleware efforts towards interoperability include GRIP, which resulted in an interoperability layer between UNICORE and GT2, OSG, LCG ...

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Consumer reviews are now part of everyday decision-making. Yet, the credibility of these reviews is fundamentally undermined when businesses commit review fraud, creating fake reviews for themselves or their competitors. We investigate the economic incentives to commit review fraud on the popular review platform Yelp, using two complementary approaches and datasets. We begin by analyzing restau...

In this paper the authors review the developments of the Analytic Hierarchy Process (AHP) since its inception. The focus of this paper is a neutral review on the methodological developments rather than reporting its applications that have appeared since its introduction. In particular, we discuss problem modelling, pair-wise comparisons, judgement scales, derivation methods, consistency indices...

Farming is an important and key factor for the economy of developing countries. Since last several years, farmers once again welcomed many traditional farming systems to get crop yield for completion of food requirement. Although, traditional techniques are not much sufficient in new agriculture world because farming is getting new challenges from biotic and abiotic factors. New techniques and ...

For consumers, online product reviews have become an important source for product-related information. Furthermore, they represent a beneficial addition to online retailers’ websites. Due to the increasing amount of available product reviews, identifying the most helpful product reviews represents an important task in order to reduce information overload. Therefore, the factors influencing revi...

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As a new type of word-of-mouth information, online consumer product review is an emerging market phenomenon that is playing an increasingly important role in consumers’ purchase decisions. This paper argues that online consumer review, a type of product information created by users based on personal usage experience, can serve as a new element in the marketing communications mix and work as fre...