نتایج جستجو برای: hierarchical concepts

تعداد نتایج: 241346  

Journal: :Lecture Notes in Computer Science 2023

We continue our study from Lynch and Mallmann-Trenn (Neural Networks, 2021), of how concepts that have hierarchical structure might be represented in brain-like neural networks, these representations used to recognize the concepts, learned. In we considered simple tree-structured feed-forward layered networks. Here extend model two ways: allow limited overlap between children different networks...

2012
Gerald Wiest

The history of the sciences of the human brain and mind has been characterized from the beginning by two parallel traditions. The prevailing theory that still influences the way current neuroimaging techniques interpret brain function, can be traced back to classical localizational theories, which in turn go back to early phrenological theories. The other approach has its origins in the hierarc...

2010
Ivica Dimitrovski Dragi Kocev Suzana Loskovska Saso Dzeroski

In this paper, we present a hierarchical multi-label classification system for visual concepts detection and image annotation. Hierarchical multi-label classification (HMLC) is a variant of classification where an instance may belong to multiple classes at the same time and these classes/labels are organized in a hierarchy. The system is composed of two parts: feature extraction and classificat...

2008
H. Motameni A. Movaghar B. Shirazi M. Aminzadeh H. Samadi

Petri net is used widely to analyze and model various systems formally. Recently, Many Petri nets mania devote their efforts to enhancing and extending the expressive Power of Petri nets. One such effort is to extend Petri nets with object-oriented concepts. An object-oriented paradigm provides excellent concepts to model real-world problems. Object-oriented concepts allow us to build software ...

Journal: :Journal of biomedical informatics 2014
Ankur Agrawal Gai Elhanan

OBJECTIVE To quantify the presence of and evaluate an approach for detection of inconsistencies in the formal definitions of SNOMED CT (SCT) concepts utilizing a lexical method. MATERIAL AND METHOD Utilizing SCT's Procedure hierarchy, we algorithmically formulated similarity sets: groups of concepts with similar lexical structure of their fully specified name. We formulated five random sample...

1999
Guangyu Pei Mario Gerla Xiaoyan Hong Ching-Chuan Chiang

In this paper we present a hierarchical routing protocol in a large wireless, mobile network such as found in the automated battle field or in extensive disaster recovery operations. Conventional routing does not scale well to network size. Likewise, conventional hierarchical routing cannot handle mobility eficiently. We propose a novel soft state wireless hierarchical routing protocol Hierarch...

2004
Kaori Yoshida

Vygotsky posed a variety of meaningful ideas for education in his short life. This paper focuses on everyday concepts and mathematical concepts or scientific concepts from his theory, reorganizing these ideas according to a new idea of sublated concepts. Using a series of interviews from a third grade fraction class in Japan, the paper discusses how everyday and mathematical concepts arise out ...

2006
Walter Noll

1) The facility with numbers and calculations, 2) The art of avoiding unnecessary calculations, 3) Memorizing formulas and theorems, 4) Understanding and finding proofs, 5) Solving problems with well-described procedures, 6) Solving problems for which there are no well-described procedures, 7) Understanding abstract mathematical concepts, 8) Creating new mathematical concepts, and clarifying an...

2010
Helen C. Reed Paul Drijvers Paul A. Kirschner

This mixed-methods study investigates the effects of student attitudes and behaviours on the outcomes of learning mathematics with computer tools. A computer tool was used to help students develop the mathematical concept of function. In the whole sample (N = 521), student attitudes could account for a 3.4 point difference in test scores between individuals on a 10-point scale. General attitude...

2017
Rohan Paul Jacob Arkin Nicholas Roy Thomas M. Howard

Our goal is to develop models that allow a robot to understand or “ground” natural language instructions in the context of its world model. Contemporary approaches estimate correspondences between an instruction and possible candidate groundings such as objects, regions and goals for a robot’s action. However, these approaches are unable to reason about abstract or hierarchical concepts such as...

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