Search Results

Advanced search parameters have been applied.
open access

Music and Information

Description: The application of information theory to music may provide both a means for measuring the information content of the messages .of the system and for studying the effects of such messages in the field of psychology of music (e.g., the group at Iowa University which is carrying on work commenced by Carl Seashore 3 ). Before the techniques of information theory may be applied to a study of music much statistical data about the music system must be compiled. Masking data must be compiled dealing wi… more
Date: August 1956
Creator: Lawes, Robert Clement
Partner: UNT Libraries
open access

Application of Information Theory Concepts in the Investigation of the Growth Pattern of Production, Distribution and Velocity of Information

Description: The objective of this research is the investigation of the patterns of information growth to test whether there has been an "information explosion." To tackle the main problem, there are three issues which need to be addressed: (1) the concept of information dimensionality; (2) determination of common parameters to measure the amount of information within each dimension; and (3) a working definition of "explosiveness. "
Date: August 1987
Creator: Attia, Abdel-Hameed M. (Abdel-Hameed Mohammed)
Partner: UNT Libraries
open access

A mechanism for richer representation of videos for children: Calibrating calculated entropy to perceived entropy

Description: This study explores the use of the information theory entropy equation in representations of videos for children. The calculated rates of information in the videos are calibrated to the corresponding perceived rates of information as elicited from the twelve 7 to 10 year old girls who were shown video documents. Entropy measures are calculated for several video elements: set time, set incidence, verbal time, verbal incidence, set constraint, nonverbal dependence, and character appearance. As hy… more
Date: August 2001
Creator: Kearns, Jodi
Partner: UNT Libraries
open access

The Fabric of Entropy: A Discussion on the Meaning of Fractional Information

Description: Why is the term information in English an uncountable noun, whereas in information theory it is a well-defined quantity? Since the amount of information can be quantified, what is the meaning of a fraction of that amount? This dissertation introduces a quasi-entropy matrix which developed from Claude Shannon's information measure as an analytical tool for behavioral studies. Such matrix emphasizes the role of relative characteristics of individual level data across different collections. The re… more
Date: August 2019
Creator: Zhang, Yuan
Partner: UNT Libraries
open access

INFORMATION, COMMUNICATION, AND LANGUAGE

Description: A lecture delivered at Sandia Corp., Albuquerque, N. Mex., June 18, 1958. A discussion of information exchange theory is presented. Semantics in communications are examined, and the use of symbols in thinking and presentaion are discussed in some detail. (J.R.D.)
Date: July 1, 1959
Creator: Hammer, P.C.
Partner: UNT Libraries Government Documents Department
open access

A Shannon-Theoretic Approach to the Storage–Retrieval Trade-Off in PIR Systems

Description: Authors of the article consider the storage–retrieval rate trade-off in private information retrieval (PIR) systems using a Shannon-theoretic approach. Their focus is mostly on the canonical two-message two-database case, for which a coding scheme based on random codebook generation and the binning technique is proposed.
Date: January 11, 2023
Creator: Tian, Chao; Sun, Hua & Chen, Jun
Partner: UNT College of Engineering
open access

Collaborative Research: CIF: Medium: Fundamental Limits of Cache-aided Multi-user Private Function Retrieval

Description: Data management plan for the grant, "Collaborative Research: CIF: Medium: Fundamental Limits of Cache-aided Multi-user Private Function Retrieval." This project is motivated by the need to efficiently execute complex queries on massive databases in a way that minimizes the use of communication resources while preserving the privacy of the entity that initiated the query. Such queries are functions of the data points that are stored at remote servers. This project develops a principled and holis… more
Date: 2023-10-01/2027-09-30
Creator: Sun, Hua
Partner: UNT College of Engineering

The Cluster Hypothesis: A Visual/Statistical Analysis

Description: By allowing judgments based on a small number of exemplar documents to be applied to a larger number of unexamined documents, clustered presentation of search results represents an intuitively attractive possibility for reducing the cognitive resource demands on human users of information retrieval systems. However, clustered presentation of search results is sensible only to the extent that naturally occurring similarity relationships among documents correspond to topically coherent clusters. … more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 2000
Creator: Sullivan, Terry
Partner: UNT Libraries
open access

Infinitely many kinds of quantum channels

Description: We define the ability of a quantum channel to simulate another by means of suitable encoding and decoding operations. While classical channels have only two equivalence classes under simulation (channels with non-vanishing capacity and those with vanishing capacity), we show that there are an uncountable infinity of different equivalence classes of quantum channels using the example of the quantum erasure channel. Our results also imply a kind of 'Matthew principle' for error correction on cert… more
Date: January 1, 2008
Creator: Hastings, Matthew B
Partner: UNT Libraries Government Documents Department
open access

Quantifying evolvability in small biological networks

Description: The authors introduce a quantitative measure of the capacity of a small biological network to evolve. The measure is applied to a stochastic description of the experimental setup of Guet et al. (Science 2002, 296, pp. 1466), treating chemical inducers as functional inputs to biochemical networks and the expression of a reporter gene as the functional output. The authors take an information-theoretic approach, allowing the system to set parameters that optimise signal processing ability, thus en… more
Date: January 1, 2008
Creator: Nemenman, Ilya; Mugler, Andrew; Ziv, Etay & Wiggins, Chris H
Partner: UNT Libraries Government Documents Department
open access

Bit-string physics: A novel theory of everything

Description: We encode the quantum numbers of the standard model of quarks and leptons using constructed bitstrings of length 256. These label a grouting universe of bit-strings of growing length that eventually construct a finite and discrete space-time with reasonable cosmological properties. Coupling constants and mass ratios, computed from closure under XOR and a statistical hypothesis, using only {h_bar}, c and m{sub p} to fix our units of mass, length and time in terms of standard (meterkilogram-secon… more
Date: August 1, 1994
Creator: Noyes, H. Pierre
Partner: UNT Libraries Government Documents Department
open access

Toward a Methodology for Complexity Management

Description: This report focuses on the Battle Management/Command, Control, and Communication (BM/C³) element of the Global Protection Against Limited Strike (GPALS) system. The approach is based on the development and validation of a generic BM/C³ model. Central to the approach is the tenet that the design is divided into multiple layers. The critical functions make up the bottom layer, where trust is established and significant design effort is required.
Date: December 1992
Creator: Chisholm, G. H.
Partner: UNT Libraries Government Documents Department
open access

Analysis of error floor of LDPC codes under LP decoding over the BSC

Description: We consider linear programming (LP) decoding of a fixed low-density parity-check (LDPC) code over the binary symmetric channel (BSC). The LP decoder fails when it outputs a pseudo-codeword which is not a codeword. We propose an efficient algorithm termed the instanton search algorithm (ISA) which, given a random input, generates a set of flips called the BSC-instanton and prove that: (a) the LP decoder fails for any set of flips with support vector including an instanton; (b) for any input, the… more
Date: January 1, 2009
Creator: Chertkov, Michael; Chilappagari, Shashi; Vasic, Bane & Stepanov, Mikhail
Partner: UNT Libraries Government Documents Department
open access

Examining Human Information Behavior on Social Media: Introducing the Concept of Social Noise

Description: Social media information behavior is increasingly critical, impacting not only individuals and groups but the beliefs, values, and direction of society and culture. The purpose of this study was to investigate how persistent observation by members of the online network influences social media users' information behavior, resulting in the phenomenon of social noise. Data analytics, including LDA, LSA, and clustering methodologies, were performed but could not provide information about the users'… more
Date: August 2020
Creator: Zimmerman, Tara D
Partner: UNT Libraries
open access

An Information Theoretic Analysis of Multimodal Readability

Description: Educators often inquire about the readability of books and other documents used in the classroom, with the idea that readability supports students' reading comprehension and growth. Documents used in classrooms tend to be language-based, so readability metrics have long focused on the complexity of language. However, such metrics are unsuitable for multimodal documents because these types of documents also use non-language modes of communication. This is problematic because multimodal reading i… more
Date: December 2021
Creator: Hovious, Amanda S.
Partner: UNT Libraries
open access

Exploration of hierarchical leadership and connectivity in neural networks in vitro.

Description: Living neural networks are capable of processing information much faster than a modern computer, despite running at significantly lower clock speeds. Therefore, understanding the mechanisms neural networks utilize is an issue of substantial importance. Neuronal interaction dynamics were studied using histiotypic networks growing on microelectrode arrays in vitro. Hierarchical relationships were explored using bursting (when many neurons fire in a short time frame) dynamics, pairwise neuronal a… more
Date: December 2008
Creator: Ham, Michael I.
Partner: UNT Libraries
open access

Fixing convergence of Gaussian belief propagation

Description: Gaussian belief propagation (GaBP) is an iterative message-passing algorithm for inference in Gaussian graphical models. It is known that when GaBP converges it converges to the correct MAP estimate of the Gaussian random vector and simple sufficient conditions for its convergence have been established. In this paper we develop a double-loop algorithm for forcing convergence of GaBP. Our method computes the correct MAP estimate even in cases where standard GaBP would not have converged. We furt… more
Date: January 1, 2009
Creator: Johnson, Jason K; Bickson, Danny & Dolev, Danny
Partner: UNT Libraries Government Documents Department
open access

Molecular Organization in the Native State of Wood Cell Walls: Studies of Nanoscale Structure and its Development

Description: With respect to cell wall biogenesis we have developed a theory concerning the formation of lignin in which the regulation of structure is attributed to the hemicelluloses; they are viewed as templates for the assembly of lignin. The key supporting evidence is derived from the symmetry of annual rings in trees free of reaction wood. This symmetry is interpreted to point to genetic encoding as the dominant factor in the pattern of interunit linkages in lignin. More recently, we have explored fur… more
Date: February 1, 2001
Creator: Atalla, R. H.
Partner: UNT Libraries Government Documents Department
open access

Foundations for Reasoning in Cognition-Based Computational Representations of Human Decision Making

Description: In exploring the question of how humans reason in ambiguous situations or in the absence of complete information, we stumbled onto a body of knowledge that addresses issues beyond the original scope of our effort. We have begun to understand the importance that philosophy, in particular the work of C. S. Peirce, plays in developing models of human cognition and of information theory in general. We have a foundation that can serve as a basis for further studies in cognition and decision making. … more
Date: November 1, 2001
Creator: SENGLAUB, MICHAEL E.; HARRIS, DAVID L. & RAYBOURN, ELAINE M.
Partner: UNT Libraries Government Documents Department
open access

Determining physical constraints in transcriptional initiationcomplexes using DNA sequence analysis

Description: Eukaryotic gene expression is often under the control ofcooperatively acting transcription factors whose binding is limited bystructural constraints. By determining these structural constraints, wecan understand the "rules" that define functional cooperativity.Conversely, by understanding the rules of binding, we can inferstructural characteristics. We have developed an information theory basedmethod for approximating the physical limitations of cooperativeinteractions by comparing sequence ana… more
Date: July 1, 2007
Creator: Shultzaberger, Ryan K.; Chiang, Derek Y.; Moses, Alan M. & Eisen,Michael B.
Partner: UNT Libraries Government Documents Department
open access

Information and meaning revisiting Shannon's theory of communication and extending it to address today<U+2019>s technical problems.

Description: This paper has three goals. The first is to review Shannon's theory of information and the subsequent advances leading to today's statistics-based text analysis algorithms, showing that the semantics of the text is neglected. The second goal is to propose an extension of Shannon's original model that can take into account semantics, where the 'semantics' of a message is understood in terms of the intended or actual changes on the recipient of a message. The third goal is to propose several line… more
Date: December 1, 2009
Creator: Bauer, Travis LaDell
Partner: UNT Libraries Government Documents Department
open access

The Effect of Personality Characteristics on Information Selection, Utilization and Decision-Making

Description: The problem with which this investigation is concerned is that of determining the role of personality in information acquisition and utilization during the decision-making process, by replicating the Schkade-Scarborough box design and the Kernan-Mojena chip design, using an expanded battery of psychological tests. This investigation seeks to accomplish the following objectives: (1) review and summarize the present literature which relates personality and binary decision behavior; (2) review and… more
Date: December 1972
Creator: Carothers, Samuel Gilbert, 1938-
Partner: UNT Libraries
open access

CLOUD PARAMETERIZATIONS, CLOUD PHYSICS, AND THEIR CONNECTIONS: AN OVERVIEW.

Description: This paper consists of three parts. The first part is concerned with the parameterization of cloud microphysics in climate models. We demonstrate the crucial importance of spectral dispersion of the cloud droplet size distribution in determining radiative properties of clouds (e.g., effective radius), and underline the necessity of specifying spectral dispersion in the parameterization of cloud microphysics. It is argued that the inclusion of spectral dispersion makes the issue of cloud paramet… more
Date: February 12, 2002
Creator: Liu, Y.; Daum, P. H.; Chai, S. K. & Liu, F.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen