Reputation concerns may help to achieve efficiency in cases where imperfect information impedes it. In this paper I highlight the endogenous property of reputation and analyze how it undermines the effectiveness of reputation to achieve efficiency. More reputation implies the possibility of undertaking more activity. At the same time, more activity generates more signals under which reputation ...

Gavagai used its commercially available system for the filtering and polarity tasks in the evaluation campaign for online reputation management systems at CLEF 2013. The system is built for large scale analysis of streaming text and as part of the services Gavagai provides, it measures the public attitude visavi targets of interest. This mechanism — with no adjustment for this specific task — w...

This paper introduces a set of principles for governing the design and operation of online reputation systems. We also introduce the design, architecture, and implementation of a flexible, general-purpose framework, called Pythia, for building reputation systems. We give a sample application of our framework to illustrate its use.

Reputation-management, as proposed for dynamic and open systems aims to provide mechanism for analysing the behaviour of agents, and to distribute this information so that the impact of the actions of those acting against the interests of a community can be limited. We study the assumptions that underpin this decisionmaking role for reputation-management and highlight its limitations with regar...

Nowadays more and more Internet applications install reputation systems to collect opinions users have about some reputation objects. The opinions are usually formalized in the form of ratings the reputation system can use to build overall reputation profiles of the reputation objects. Reputation objects might be other users, products, web content and anything else that can be rated. Users may ...

Topic priority assignment is defined in RepLab-2013 as labelling a topic according to its level of priority (alert, mildly important or unimportant) in order to highlight topics requiring immediate attention for online reputation monitoring. Although they are strongly linked, topic detection and priority assignment have been previously treated as separate tasks. We study the impact of integrati...

We summarize the goals, organization, and results of the second RepLab competitive evaluation campaign for Online Reputation Management systems (RepLab 2013). RepLab 2013 focuses on the process of monitoring the reputation of companies and individuals, and asks participating systems to annotate different types of information on tweets containing the names of several companies. First, tweets hav...

Recent multi-agent systems are characterized by decentralized control, autonomy and local views. The application of multi-agent systems on open environment such as internet creates new challenges especially with respect to security issues such as authentication, authorization and privacy. The characteristics of multiagent systems introduce vulnerabilities and threats to secured communication. O...

The growing concerns regarding sustainability and a firm's effects on the environment explain important role that environmental management may play in corporate reputation. Following premises of stakeholder approach dynamic capability theory, we explore how comprehensive (environmental innovation [EI] cleaner production [CP]) impacts By analyzing panel data European manufacturing firms, show EI...