A hierarchical gesture recognition algorithm is introduced to recognise a large number of gestures. Three stages of the proposed algorithm are based on a new hand tracking technique to recognise the actual beginning of a gesture using a Kalman filtering process, hidden Markov models and graph matching. Processing time is important in working with large databases. Therefore, special cares are ta...

Much recent work in computational linguistics emphasizes the role of lexical information in syntactic representation and processing. In this paper, I propose to represent syntax as an abstraction of subcategorization frames, from a word-speciic level to a general, abstract level (syntactic categories). The representation is linguistically perspicuous, and useful for processing. I deene a parsin...

Maslow's hierarchy of needs is psychological theory developed in 1943 by Abraham Maslow in his essay “A Theory of Human Motivation.” His theory shares similarities with many other theories of human developmental psychology, which focus on explaining the stages of human growth and development. The Hierarchy of Needs suggests that impetus for human behavior stems from the drive to fulfill certain...

This paper proposes an optimized iris recognition system which is suitable for client applications with several security levels. The innovations are the low dimensionality of the iris feature space and the hierarchical classification-based identification method; in this approach the biometric samples are processed in 3 stages to provide identification final decisions. The proposed design soluti...

Maslow's hierarchy of needs is psychological theory developed in 1943 by Abraham Maslow in his essay “A Theory of Human Motivation.” His theory shares similarities with many other theories of human developmental psychology, which focus on explaining the stages of human growth and development. The Hierarchy of Needs suggests that impetus for human behavior stems from the drive to fulfill certain...

New Social Structures Are Generating New Leadership Styles Different epochs produce different kinds of leadership – with different patterns of hierarchical authority, different skill sets and attitudes, and different institutional incentives. Societies today are experiencing significant changes potentially as far reaching as the transition from agricultural to industrial societies. Today’s epoc...

Abstract Purpose of this paper: The objectives of this paper are two folds: (1) utilizing hierarchical fuzzy technique for order preference by similarity to ideal solution (TOPSIS) approach to evaluate the most suitable RFID-based systems decision, and (2) to highlight key risks and benefits of radio frequency identification technology in healthcare industry. Design/methodology/approach: R...

OBJECTIVE Potential differences between coherence and phase synchronization analyses of human sleep electroencephalogram (EEG) are assessed and occurrences of phase vs. complete synchronization between EEG signals from different locations during different sleep stages are investigated. METHODS Linear spectral coherence, mean phase coherence (MPC) z-score and Pearson's correlation coefficient ...

In previous sleep studies, it has been demonstrated that Poincare plots of RR intervals, which provide a beat to beat dynamic measure of heart rate variability, have distinctive and characteristic patterns according to sleep stages. This study was designed to evaluate the temporal relationship between heart rate variability and sleep electroencephalographic activity (EEG) by using the Pearson's...