In almost all situation assessment problems, it is useful to dynamically contract and ex­ pand the states under consideration as assess­ ment proceeds. Contraction is most often used to combine similar events or low probability events together in order to reduce computa­ tion. Expansion is most often used to make distinctions of interest which have significant probability in order to improve 't...

Buseck et al (2012) raise important issues of terminology in dealing with light-absorbing carbonaceous aerosols. Although some might argue that the points raised by Buseck et al. are "only" terminology or nomenclature, not science, we would respond that terminology is essential to doing and communicating and advancing science. A rose by any other name would smell as sweet, but still it useful t...

We consider problems in modelling job matching in the Czech Republic during the transition to a market economy Special interest is devoted to functional form considerations and the analysis of returns to scale of the matching function This explorative study aims to shed some light into the black box of the matching technology by applying nonparametric esti mation techniques which relax distribu...

This is the diary George H. W. Bush kept while in China from October 1974 until December 1975. These are his own words, dic­ tated from the small American outpost in the heart of massive Bei­ jing. As head of the United States Liaison Office (USLO), Bush was Washington’s chief representative in China, a crucial job that was not easily defined. The United States and the People’s Republic of Chin...

The designs of applications for multilevel systems cannot merely duplicate those of the untrusted world When applications are built on a high assurance base they will be constrained by the underlying policy en forcement mechanism Consideration must be given to the creation and management of multilevel data struc tures by untrusted subjects Applications should be de signed to rely upon the TCB s...

* Head, School of Civil Engineering, Purdue University, director, Joint Highway Research Project, and co-chairman, 68th Annual Purdue Road School. Professor Michael in 1981-82 also chaired a Transportation Research Board Steering Committee charged with producing a Docu­ ment on “Enhancing Highway Safety Through Engineering Management in an Age of Limited Resources.” The Document with this title...

During interactions with human consultants, people are used to providing partial and/ or inaccurate information, and still be under­ stood and assisted. We attempt to em­ ulate this capability of human consultants in computer consultation systems. In this paper, we present a mechanism for han­ dling uncertainty in plan recognition dur­ ing task-oriented consultations. The uncer­ tainty arises w...

We consider chiral condensates in SU(2) gauge theory with broken N= 2 super-symmetry. The matter sector contains an adjoint multiplet and one fundamental flavor. Matter and gaugino condensates are determined by integrating out the ad-joint field. The only nonperturbative input is the Affleck-Dine-Seiberg (ADS) super-potential generated by one instanton plus the Konishi anomaly. These results ar...

The management of uncertainty in expert systems has usually been left to ad hoc representations and rules of combina­ tions lacking either a sound theory or clear semantics. The objective of this paper is to establish a theoretical basis for defining the syntax and semantics of a small subset of calculi of uncertainty operating on a given term set of linguistic statements of likelihood. Each ca...

A significant problem in designing mobile robot con­ trol systems involves coping with the uncertainty that arises in moving about in an unknown or par­ tially unknown environment and relying on noisy or ambiguous sensor data to acquire knowledge about that environment. We describe a control system that chooses what activity to engage in next on the basis of expectations about how the informati...