Under the condition of limited feedback, due to the multiple antennas cognitive two-way relay system due to the relay node have been the channel state information and the actual channel state information is error, caused the user system interference to primary user system increases, at the same time reduces the transmission rate of user system. Aiming at this problem, this paper on the basis of...

Ever since the ‘early days’ of database management systems, clustering has proven to be one of the most effective performance enhancement techniques for object oriented database management systems. The bulk of the work in the area has been on static clustering algorithms which re-cluster the object base when the database is off-line. However, this type of re-clustering cannot be used when 24-ho...

In this work we embed some anticipatory mechanisms in an agent architecture, modeling affective behaviours as effects of surprise. We look at the advantages of becoming cautious, wary and careful. Through experiments discussion we show how this approach increases not only agent opportunism and reactivity but also anticipatory capabilities for planning and reasoning.

Globalization has added a layer of complexity to the challenge mitigating opportunism in buyer–supplier relationships. When engaging with suppliers different countries, buyers must manage relationships across various cultures. Prior empirical research shown that inter-firm power affects exchange relationships, and conceptual studies suggest national culture is location characteristic could infl...

Should responsibility for strategic planning and execution be assigned to the same manager? Should a firm have a chief operating officer with responsibilities distinct from those of the chief executive officer? How does the division of labor affect managerial opportunism? This paper uses a formal agency-theoretic model to address these questions and present a new theory of the division of manag...

Regulators and other governors rely on intermediaries to set implement policies regulate targets. Existing literatures focus heavily of a single type – Opportunists, motivated solely by self-interest. But can also be different types loyalty: leaders (Vassals), (Zealots), or institutions (Mandarins). While all three loyalists are resistant the traditional problems opportunism (slacking capture),...

Research summary The transaction costs logic suggests that innovators cannot gain value from incumbents' unconditional termination rights in their RD yet, innovators' gains them depend on the likelihood of opportunistic uses by incumbents at exercises. The tests biopharmaceutical R&D alliances setting support our hypotheses. Managerial summary Incumbents form with to explore new technologi...