Models of Interaction as a Grounding for Peer to Peer Knowledge Sharing

Most current attempts to achieve reliable knowledge sharing on a large scale have relied on pre-engineering of content and supply services. This, like traditional knowledge engineering, does not by itself scale to large, open, peer to peer systems because the cost of being precise about the absolute semantics of services and their knowledge rises rapidly as more services participate. We describe how to break out of this deadlock by focusing on semantics related to interaction and using this to avoid dependency on a priori semantic agreement; instead making semantic commitments incrementally at run time. Our method is based on interaction models that are mobile in the sense that they may be transferred to other components, this being a mechanism for service composition and for coalition formation. By shifting the emphasis to interaction (the details of which may be hidden from users) we can obtain knowledge sharing of sufficient quality for sustainable communities of practice without the barrier of complex meta-data provision prior to community formation

Electronic marketplace

Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.Includes bibliographical references (leaf 34).by David Yi Wang.M.Eng

Privacy in Cooperative Distributed Systems: Modeling and Protection Framework

A new form of computation is emerging rapidly with cloud computing, mobile computing, wearable computing and the Internet-of-Things. All can be characterized as a class of “Cooperative Distributed Systems” (CDS) in open environment. A major driver of the growth is the exponential adoption by people and organizations within all aspects of their day-to-day matters. In this context, users’ requirements for privacy protection are becoming essential and complex beyond the traditional approaches. This requires a formal treatment of “privacy” as a fundamental computation concept in CDS paradigm. The objective is to develop a comprehensive formal model for “privacy” as base to build a CDS based framework and platform in which various applications allow users to enjoy the comprehensive services in open environments while protecting their privacy seamlessly. To this end, this thesis presents a novel way of understudying, modeling and analyzing privacy concerns in CDS. A formal foundations and model of privacy is developed within the context of information management. This served as a base for developing a privacy protection management framework for CDS. It includes a privacy-aware agent model for CDS platform with the ability to support interaction-based privacy protection. The feasibility of the proposed models has been demonstrated by developing an agent-based CDS platform using JIAC framework and a privacy-based Contract Net Protocol. It also included the application scenarios for the framework for privacy protection is Internet-of-Tings, cloud-based resource scheduling and personal assistance

Governing partnerships

Public private partnerships (PPPs) are instruments of the public interest, yet bodies that actively engage private actors. As a result, questions of governance are particularly important. Here, governance refers to the rules that prescribe who should make, execute and be accountable for the conduct of a PPP, and in what way that conduct should be exercised, for example through consultation with interested parties, transparency in decision-making, and so on. This chapter explores four facets of PPP governance: legal, regulatory, democratic, and corporate governance. Legal governance has implications for the allocation of roles and responsibilities between the parties to the PPP, the PPP entity itself, and the state and citizens more widely. Regulatory governance covers the legal and contractual obligations on parties, the procedures through which they are enforced, and the softer norms that operate around these. Democratic governance concerns the empirical and normative question of what is, and what should be, the level and form of constitutional oversight of PPPs. Corporate governance concerns itself with ensuring that the enterprise is managed in a manner that does not put the future of the business and investors funds at undue risk. The chapter concludes that the key task in developing the governance of PPPs is less to do with their financial probity, and more with aligning their mode of operating to the fundamental democratic values of the wider public service

Merchant differentiation through integrative negotiation in agent-mediated electronic commerce

Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 1998.Includes bibliographical references (p. [149]-153).This thesis proposes to fix online shopping by guiding it away from price comparisons and toward value comparisons. Though price comparisons may be adequate for simple products (e.g., books and music), they are inadequate for facilitating transactions of complex products (e.g., computers and automobiles). Consumers often must consider qualities other than price in their buying decisions and merchants usually prefer to differentiate themselves along alternative dimensions such as brand, customer service, delivery time, warranty, and other value-added services. Tete-a-Tete is an agent-mediated comparison shopping system that allows consumers to consider dimensions other than price in their buying decisions for complex products. The system helps shoppers answer two questions: what to buy and who to buy from. Tete-a- Tete's integrative negotiation interaction model (based on bilateral argumentation), together with a decision support module (based on multi-attribute utility theory), create an improved online shopping environment for both consumers and merchants. Consumers gain increased satisfaction as their search costs for complex products are reduced and merchants potentially increase sales as a result of their enhanced differentiation in the marketplace.Robert H. Guttman.S.M