The trust levels of cloud services should be evaluated to ensure their reliability. The effectiveness of these evaluations has major effects on user satisfaction, which is increasingly important. However, it is difficult to provide objective evaluations in open and dynamic environments because of the possibilities of malicious evaluations, individual preferences, and intentional praise. In this...

the wto is an international organization which arranges international commercial rules and disputes settlements. increasingly joining of countries to the wto and movement for freedom of commercial regime in industrial or developing countries are deniable testimonies for globalization. gradual reduction of tariff and competition in exports and internal markets by their advantages have jeopardize...

Existing testbeds to evaluate reputation systems are mainly simulation based and are not flexible to perform robustness evaluations against unfair rating attacks. In this paper, we present a novel comprehensive testbed, which can evaluate reputation systems using both simulations and real data. The testbed incorporates sophisticated deception models and unfair rating attack models, and introduc...

The nascent field of neuroeconomics seeks to ground economic decision making in the biological substrate of the brain. We used functional magnetic resonance imaging of Ultimatum Game players to investigate neural substrates of cognitive and emotional processes involved in economic decision-making. In this game, two players split a sum of money;one player proposes a division and the other can ac...

Reputation systems have contributed much to the success of electronic marketplaces. However, the problem of unfair testimonies has to be addressed effectively to improve the robustness of reputation systems. Until now, most of the existing approaches focus only on reputation systems using binary testimonies, and thus have limited applicability and effectiveness. In this paper, We propose an int...

In societies with high cooperation demands, implicit consensus on social norms enables successful human coexistence. Mimicking other people's actions and emotions has been proposed as a means to synchronize behaviour, thereby enhancing affiliation. Mimicry has long been thought to be reflexive, but it has recently been suggested that mimicry might also be motivationally driven. Here, we show du...