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The conjunction operator can be augmented with temporal constraints to define an arbitrary pattern of events in event stream processing (ESP). However, using temporal constraints to specify patterns can be complex. This research has defined an operator hierarchy, where the top of the hierarchy defines the conjunction operator and the leaves of the hierarchy define more specific semantics associated...
The paper shows how an agent-based system can be subjected to formal verification using a deductive approach. The particular system for gathering open source intelligence is considered, which is build on a framework for data integration. Techniques allowing for automatic extraction of logical specifications are described with emphasis on pattern-based and rule-based approaches. An example illustrates...
We have checked if it is possible to increase effectiveness of standard tracking library (Kinect Software Development Kit) by fusion of body joints gathered from different sensors positioned around the user. The proposed calibration procedure enables integration of skeleton data from set of tracking devices into one skeleton. That procedure eliminates many segmentation and tracking errors. The test...
Herein we describe the latent semantic algorithm method for identifying broadcast news story boundaries. The proposed system uses the pronounced forms of words to identify story boundaries based on popular noun unification. Commonly used clustering methods use latent semantic analysis (LSA) because of its excellent performance and because it is based on deep semantic rather than shallow principles...
This document describes an algorithm aimed at recognizing Named Entities in Polish text, which is powered by two knowledge sources: the Polish Wikipedia and the Cyc ontology. Besides providing the rough types for the recognized entities, the algorithm links them to the Wikipedia pages and assigns precise semantic types taken from Cyc. The algorithm is verified against manually identified Named Entities...
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