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The hierarchic structure of fears
Behaviour Research and Therapy, 1998Contemporary theories of fears (and phobias) suggest two kinds of etiologic factors; those common to all fears (factors influencing fear-proneness) and factors specific to particular fears (e.g. specific learning experiences). There also may be etiologic factors of intermediate specificity; factors common to some but not all fears.
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Composing Hierarchically Structured Images
Computer Graphics Forum, 1992AbstractThis paper begins by examining the ‘classical’ raster‐based composition model, establishing its weakness, and developing a new composition algebra based on line drawing. It then examines the role of composition in the Hierarchical Display Model, demonstrates that the forms of composition assumed in this model are inadequate to deal correctly ...
John W. Patterson, Gilbert Cockton
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Bursty and hierarchical structure in streams
Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining, 2002A fundamental problem in text data mining is to extract meaningful structure from document streams that arrive continuously over time. E-mail and news articles are two natural examples of such streams, each characterized by topics that appear, grow in intensity for a period of time, and then fade away.
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Hierarchical structuring of superposed GSPNs
Proceedings of the Seventh International Workshop on Petri Nets and Performance Models, 1999Superposed generalized stochastic Petri nets (SGSPNs) and stochastic automata networks (SANs) are formalisms to describe Markovian models as a collection of synchronously communicating components. Both formalisms allow a compact representation of the generator matrix of the Markov chain, which can be exploited for very space efficient analysis ...
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Detecting hierarchical structure in networks
2012 3rd International Workshop on Cognitive Information Processing (CIP), 2012Many real-world networks exhibit hierarchical organization. Previous models of hierarchies within relational data has focused on binary trees; however, for many networks it is unknown whether there is hierarchical structure, and if there is, a binary tree might not account well for it.
Tue Herlau +3 more
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On Designing a Reliable Hierarchical Structure
SIAM Journal on Applied Mathematics, 1977This paper considers the design and analysis of a class of managerial structures which are perhaps best illustrated by a spy network. The problem is formulated as a reliability problem on organizational trees, and two probabilistic performance measures are studied.
Goodman, S., Shier, D.
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Axiomathes, 2012
This paper compares the two known logical forms of hierarchy, both of which have been used in models of natural phenomena, including the biological. I contrast their general properties, internal formal relations, modes of growth (emergence) in applications to the natural world, criteria for applying them, the complexities that they embody, their ...
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This paper compares the two known logical forms of hierarchy, both of which have been used in models of natural phenomena, including the biological. I contrast their general properties, internal formal relations, modes of growth (emergence) in applications to the natural world, criteria for applying them, the complexities that they embody, their ...
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Hierarchical cellular automata structures
Parallel Computing, 1992zbMATH Open Web Interface contents unavailable due to conflicting licenses.
E. D. Adamides +2 more
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Hierarchical structures in fibrillar collagens
Micron, 2002The collagen family includes several large transcripts, usually exceeding 1000 amino acid residues per single chain. As a group, they make up 1/3 of all the protein of the body and are responsible for modelling the framework of connective tissues; individually, they show both a wide variety and a complex hierarchy of mutual interactions, and form a ...
OTTANI V +4 more
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Parameter Optimization in Hierarchical Structures
1999The genetic-algorithm-based method described in this paper can be used to identify a parameter set whose value defines the gene regulation circuit. To demonstrate the effectiveness of the approach we choose Drosophila segmentation processes. In the processes, we search the parameter set of diffusion constant and transcription ratio of each gene.
Shugo Hamahashi, Hiroaki Kitano
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