نتایج جستجو برای: shannons information index

تعداد نتایج: 1508531  

2011
Amit Chakrabarti Ranganath Kondapally

For a variety of reasons, a number of recent works have studied the classic communication problem INDEX, and its variant AUGMENTED-INDEX, from a tradeoff perspective: how much communication can Alice (the player holding the n data bits) save if Bob (the player holding the index) communicates a nontrivial amount? Recently, Magniez et al. (STOC, 2010), Chakrabarti et al. (FOCS, 2010) and Jain and...

2007
Okyu Kwon

We investigate the strength and the direction of information transfer in the U.S. stock market between the composite stock price index of stock market and prices of individual stocks using the transfer entropy. Through the directionality of the information transfer, we find that individual stocks are influenced by the index of the market.

The purpose of this study is to investigate and analyze factors affecting the energy intensity in provinces of Iran with emphasis on information and communications technology (ICT) index, during the period from 2010-2015. Weighted Average Least Square (WALS) method and information criteria have been applied to select the model; so that, based on WALS method, six variables among various effectiv...

2003
Ricardo Mora Javier Ruiz-Castillo

Building upon the ideas first exposed by Theil and Finizza (1971) and Fuchs (1975), this paper presents an additively decomposable segregation index based on the entropy concept used in information theory. For any pair of classification variables in a given year, the index is decomposed into a between-group and a withingroup term. To analyze intertemporal changes in gender segregation for a giv...

Journal: :CoRR 2015
Xueliang Li Meiqin Wei

The entropy of a graph was first introduced by Rashevsky [1] and Trucco [2] to interpret as the structural information content of the graph and serve as a complexity measure. In this paper, we first state a number of definitions of graph entropy measures and generalized graph entropies. Then we survey the known results about them from the following three respects: inequalities and extremal prop...

1999
Pepijn R.S. Visser

Legal ontologies are useful in the design of knowledge systems because they are reusable. A library of such ontologies could greatly enhance the development of legal knowledge systems. In this article we address the creation of such a library. In particular, we discuss four legal ontologies and investigate how the ontologies can be indexed and represented in a library.

2014
Mikyoung Lee Min-Hee Cho Chang-Hoo Jeong Hanmin Jung

This study examines a method of generating comprehensive profiling information for a researcher analysis service. In addition to basic and performance-based information about researchers necessary to generate profiling information, we introduce researcher performance index models for researcher analysis service. The models can that measure qualitative and quantitative performance, researcher in...

2011
Alexander James Gaspar Simoes César A. Hidalgo

We introduce The Economic Complexity Observatory, a tool for helping users understand the evolution of countries’ productive structures and trade partners. Here we bridge the gap of harnessing the raw computational power of cycling through thousands of entries of data with the analytical, decision making qualities of the human mind through the use of information visualization “apps”. These allo...

1999
Nuno Maria Mário J. Silva

Efficient information retrieval of highly dynamic information, such as news, is a complex task. As a result, search and retrieval environments for continuously updated news, from other sources than the largest media conglomerates, are almost absent on the Internet. To address this problem, we propose an architecture for a retrieval mechanism designed to improve retrieval efficiency of online ne...

2011
Mauri Leodir Löbler Monize Sâmara Visentini

This study aims to identify the influence that Cognitive Absorption has on the intention of using Orkut. It happens due to the fact that Cognitive Absorption is related to the state of deep involvement users carry with an individual task, performed with the support of Information Technology (IT); it corroborates the study on this virtual community. Therefore, through descriptive research with a...

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