We present the sentence ordering part of a natural language generation module, used in the framework of a knowledge base of electronic navigation charts and sailing directions. The particularity of the knowledge base is that it is based on a controlled hybrid language, that is the combination of a controlled natural language and a controlled visual language. The sentence ordering process is abl...

this study was carried out on 1330 infants, from one to 24 months old, suffering from diarrhoea and moderate to severe dehydration who were hospitalized in bahrami childrens' hospital over a period of eleven months. fifteen percent of them had signs of shock and 36% had marasmus. nine percent of treated children required readmission to hospital within 24 hours of discharge and 8% were hospitali...

Today, large knowledge bases are developed collaboratively and in an incremental manner. Often the engineering starts with the collection and organization of informal elements, that are subsequently refined into explicit knowledge. Due to the size of knowledge bases and the collaborative setting, the analysis of the current development progress becomes an important issue. The results of that an...

The present study carries out output-only modal analysis using two blind source separation (BSS) techniques, namely independent component analysis and second-order blind identification. The concept of virtual source is exploited and renders the application of these BSS techniques possible. The proposed modal analysis method is illustrated using numerical and experimental examples. r 2007 Elsevi...

The Olympics-oriented mobile game news ordering system introduced in the paper involved the technology of natural language processing, machine learning and information extraction. We collected text information from the major Internet media websites about the table-tennis and badminton games of the 2004 Athens Olympics; then we transformed these texts information into structured data through inf...

Verb modality presents a major processing obstacle in any NLP application, and can be overcome either by exhaustively listing all possible modal variants of any given verb, or by deriving any modality-based valency alterations in situ. Given the combinatorial complexity of any exhaustive listing attempt, we adopt this second methodology in proposing a modular set of valency frame transformation...

In this paper we present a new approach to the problem of planning with incomplete information and sensing. Our approach is based on a higher level, “knowledge-based”, representation of the planner’s knowledge and of the domain actions. In particular, in our approach we use a set of formulas from a first-order modal logic of knowledge to represent the planner’s incomplete knowledge state. Actio...

The simultaneity of signals from different senses-such as vision and audition-is a useful cue for determining whether those signals arose from one environmental source or from more than one. To understand better the sensory mechanisms for assessing simultaneity, we measured the discrimination thresholds for time intervals marked by auditory, visual or auditory-visual stimuli, as a function of t...