Complexity of existing mathematical models inhibits the analysis and the automatic animation of human and animal motion. Current techniques rely on numerical simulations of highly nonlinear differential equations in highdimensional spaces. A motion with such large-scale dynamics is difficult to control because of the sheer size of its control space. We are developing a method for constructing s...

Directed model checking is a well-established technique that is tailored to fast detection of system states that violate a given safety property. This is achieved by influencing the order in which states are explored during the state space traversal. The order is typically determined by an abstract distance function that estimates a state’s distance to a nearest error state. In this paper, we p...

A state space representation of a (singular) AR-model is defined. It is shown, in particular, that this representation determines the model uniquely up to an isomorphism and respects its behavior. An explicit construction is presented for a ”standard” AR-model.

In this paper, an enhancement design of communication system using optical radio frequency (RF) waves in free space optical communication (FSO) system is presented. To our knowledge, it is the first time that the effect of Gamma-Gamma turbulent channel model on the performance of the proposed system is analyzed and simulated. To obtain an optical communication system with good performance and h...

introduction: a study model is a precise three dimensional replica of patient’s dentition and plays an important role in treatment planning. many digital multi-media applications have become available to the clinician and his or her staff to facilitate standard procedures in practice and management. the aim of this study is to evaluate reliability and validity of dental measurement made on digi...

Model-checking offers a potential for push-button verification. Abstraction is often used to combat the state-space explosion problem and focus the analysis on relevant properties. However, in many such cases, it is difficult to interpret the results of verification on an abstract system with respect to a concrete one. In this paper we present an abstract model-checking approach that guarantees...

We consider the verification of algorithms expressed in the Heard-Of Model, a round-based computational model for fault-tolerant distributed computing. Rounds in this model are communication-closed, and we show that every execution recording individual events corresponds to a coarser-grained execution based on global rounds such that the local views of all processes are identical in the two exe...

This note develops a technique for designing diagonalizing compensators based on state-space descriptions. The relationship with stable decoupling invariants is also explored. @ 1997 Elsevier Science B.V.

An automatic monitoring and intervention algorithm that permits the supervision of very general aspects in an univariate linear gaussian state space model is proposed. The algorithm makes use of a model comparison and selection approach within a Bayesian framework. In addition, this algorithm incorporates the possibility of eliminating earlier interventions when subsequent evidence against them...