The paper describes the first stage of a project on creating an electronic dictionary with numerical estimates of the degree of abstractness and concreteness of Russian words. Our approach is to integrate data obtained from several different sources: text corpora, psycholinguistic experiments, published dictionaries, markers of abstractness (certain suffixes) and a translation of a similar dict...

We present a decentralized cooperative exploration strategy for mobile robots. A roadmap of the explored area, with the associate safe region, is built in the form of a compact data structure, called Sensor-based Random Graph. This is incrementally expanded by the robots by using a randomized local planner which automatically realizes a trade-off between information gain and navigation cost. Co...

Data Compression is today essential for a wide range of applications: for example Internet and the World Wide Web infrastructures benefits from compression. New general compression methods are always being developed, in particular those that allow indexing over compressed data or error resilience. Compression also inspires information theoretic tools for pattern discovery and classification, in...

Current information technology for virtual enterprise modeling, computational simulation, process enactment and cooperation support is fragmented. Our integration strategy is based on a dynamic process-centric enterprise model that is presented and manipulated as component-based cooperative hypermedia. The resulting system, XCHIPS, is accessible on the Web and provides life-cycle cooperative en...

We present an alignment strategy that specifically deals with the correct alignment of rare German nominal compounds to their English multiword translations. It recognizes compounds and multiwords based on their character lengths and on their most frequent POSpatterns, and aligns them based on their length ratios. Our approach is designed on the basis of a data analysis on roughly 500 German ha...

We propose a space time coded cooperative diversity protocol that achieves improved quality of service for the mobile users in cellular systems. The protocol, called cooperative frequency reuse, exploits the cellular frequency reuse concept to create spatial diversity among neighboring base stations. After transmitting their individual signals in the channel reuse protected frequency subchannel...

While the notion of a cooperative response has been the focus of considerable research in natural language dialogue systems, there has been little empirical work demonstrating how such responses lead to more efficient, natural, or successful dialogues. This paper presents an experimental evaluation of two alternative response strategies in TOOT, a spoken dialogue agent that allows users to acce...

The best performing methods for Dynamic Optimization Problems (DOPs) are usually based on a set of agents that can have different complexity (like solutions in Evolutionary Algorithms, particles in Particle Swarm Optimization, or metaheuristics in hybrid cooperative strategies). While methods based on low-complexity agents are widely applied in DOPs, the use of more “intelligent” agents has rar...

Group cohesion and consensus have primarily been studied in the context of discrete decisions, but some group tasks require making serial decisions that build on one another. We examine such collective problem solving by studying obstacle navigation during cooperative transport in ants. In cooperative transport, ants work together to move a large object back to their nest. We blocked cooperativ...

This paper deals with targeted testing of timed systems with uncontrollable behavior. The testing activity is viewed as a game between the tester and the system under test (SUT) towards a given test purpose. The SUT is modeled as Timed Game Automaton and the test purpose is specified in Timed CTL formula. We can employ a timed game solver UPPAAL-TIGA to check if the test purpose is ture w.r.t. ...