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Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
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- Navigation (4)
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- Turkish Journal of Electrical Engineering and Computer Sciences (100)
- Journal of Digital Forensics, Security and Law (45)
- Journal of Spatial Information Science (32)
- Applications and Applied Mathematics: An International Journal (AAM) (7)
- Inquiry: The University of Arkansas Undergraduate Research Journal (3)
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- School of Computer Science & Engineering Faculty Publications (3)
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- Explorations – The Journal of Undergraduate Research, Scholarship and Creativity at Wright State (1)
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Articles 31 - 60 of 200
Full-Text Articles in Physical Sciences and Mathematics
Optimizing Map Labeling Of Point Features Based On An Onion Peeling Approach, Wan D. Bae, Shayma Alkobaisi, Sada Narayanappa, Petr Vojtechovsky, Kye Y. Bae
Optimizing Map Labeling Of Point Features Based On An Onion Peeling Approach, Wan D. Bae, Shayma Alkobaisi, Sada Narayanappa, Petr Vojtechovsky, Kye Y. Bae
Journal of Spatial Information Science
Map labeling of point features is the problem of placing text labels to corresponding point features on a map in a way that minimizes overlaps while satisfying basic rules for the quality. This is a critical problem in the application of cartography and geographical information systems (GIS). In this paper we study the fundamental issues related to map labeling of point features and develop a new genetic algorithm to solve this problem. We adopt a method called convex onion peeling and utilize it in our proposed convex onion peeling genetic algorithm (COPGA) to efficiently manage map labels of point features. …
Editorial, Matt Duckham
Spatial Behavior And Linguistic Representation: Collaborative Interdisciplinary Specialized Workshop, Thora Tenbrink, Jan Wiener, Christophe Claramunt, Marios Avraamides, Rainer Malaka, Hanspeter A. Mallot
Spatial Behavior And Linguistic Representation: Collaborative Interdisciplinary Specialized Workshop, Thora Tenbrink, Jan Wiener, Christophe Claramunt, Marios Avraamides, Rainer Malaka, Hanspeter A. Mallot
Journal of Spatial Information Science
The Collaborative Interdisciplinary Specialized Workshop on Spatial Behavior and Linguistic Representation took place on April 23–24, 2010, at the Hanse-Wissenschaftskolleg, Institute for Advanced Study (HWK), in Delmenhorst, Germany. We report the scientific motivation for this workshop and report its outcomes together with the impact of a gathering of this kind for the scientific community.
Grain Levels In English Path Curvature Descriptions And Accompanying Iconic Gestures, Emile Van Der Zee, Urpo Nikanne, Uta Sassenberg
Grain Levels In English Path Curvature Descriptions And Accompanying Iconic Gestures, Emile Van Der Zee, Urpo Nikanne, Uta Sassenberg
Journal of Spatial Information Science
This paper confirms that the English verb system (similar to the Finnish, Dutch, and Bulgarian verb systems) represents path curvature at three different grain levels: neutral path curvature, global path curvature, and local path curvature. We show that the three-grain-level hypothesis makes it possible to formulate constraints on English sentence structure and makes it possible to define constructions in English that refer to path curvature. We furthermore demonstrate in an experiment that the proposed English lexicalization pattern regarding path curvature in tandem with the spatial information shown to English speakers correctly predicts their packaging of grain levels in iconic gestures. …
Linguistic Spatial Classifications Of Event Domains In Narratives Of Crime, Blake Stephen Howald
Linguistic Spatial Classifications Of Event Domains In Narratives Of Crime, Blake Stephen Howald
Journal of Spatial Information Science
Structurally, formal definitions of the linguistic narrative minimally require two temporally linked past-time events. The role of space in this definition, based on spatial language indicating where events occur, is considered optional and non-structural. However, based on narratives with a high frequency of spatial language, recent research has questioned this perspective, suggesting that space is more critical than may be readily apparent. Through an analysis of spatially rich serial criminal narratives, it will be demonstrated that spatial information qualitatively varies relative to narrative events. In particular, statistical classifiers in a supervised machine learning task achieve a 90% accuracy in predicting …
This Is The Tricky Part: When Directions Become Difficult, Stephen Hirtle, Kai-Florian Richter, Samvith Srinivas, Robert Firth
This Is The Tricky Part: When Directions Become Difficult, Stephen Hirtle, Kai-Florian Richter, Samvith Srinivas, Robert Firth
Journal of Spatial Information Science
Automated route guidance systems, both web-based systems and en-route systems, have become commonplace in recent years. These systems often replace human-generated directions, which are often incomplete, vague, or in error. However, human-generated directions have the ability to differentiate between easy and complex steps through language in a way that is more difficult in automated systems. This article examines a set of human-generated verbal directions to better understand why some parts of directions are perceived as being more difficult than the remaining steps. Insights from this analysis will lead to recommendations to improve the next generation of automated route guidance systems.
Presenting Spatial Information: Granularity, Relevance, And Integration, Thora Tenbrink, Stephan Winter
Presenting Spatial Information: Granularity, Relevance, And Integration, Thora Tenbrink, Stephan Winter
Journal of Spatial Information Science
No abstract provided.
Exploring Place Through User-Generated Content: Using Flickr Tags To Describe City Cores, Livia Hollenstein, Ross Purves
Exploring Place Through User-Generated Content: Using Flickr Tags To Describe City Cores, Livia Hollenstein, Ross Purves
Journal of Spatial Information Science
Terms used to describe city centers, such as Downtown, are key concepts in everyday or vernacular language. Here, we explore such language by harvesting georeferenced and tagged metadata associated with 8 million Flickr images and thus consider how large numbers of people name city core areas. The nature of errors and imprecision in tagging and georeferencing are quantified, and automatically generated precision measures appear to mirror errors in the positioning of images. Users seek to ascribe appropriate semantics to images, though bulk-uploading and bulk-tagging may introduce bias. Between 0.5--2% of tags associated with georeferenced images analyzed describe city core areas …
Twenty Years Of Progress: Giscience In 2010, Michael F. Goodchild
Twenty Years Of Progress: Giscience In 2010, Michael F. Goodchild
Journal of Spatial Information Science
It is 20 years since the term “geographic information science” was suggested to encompass the set of fundamental research issues that surround GIS. Two decades of GIScience have produced a range of accomplishments, in an expanding literature of research results as well as in the infrastructure of research. Several themes are suggested for future research, based both on gaps in what has been accomplished thus far, and on technology trends that will themselves raise research questions.
Editorial, Mike Worboys
Why Copyright Falls Behind The Requirement For Protecting Graphic User Interfaces: Case Studies On Limitations Of Copyright Protection For Guis In China, Ling Jin, Yihong Ying
Why Copyright Falls Behind The Requirement For Protecting Graphic User Interfaces: Case Studies On Limitations Of Copyright Protection For Guis In China, Ling Jin, Yihong Ying
IP Theory
No abstract provided.
Wikis: The Perfect Platform For Library Policies And Procedures, Melanie J. Dunn
Wikis: The Perfect Platform For Library Policies And Procedures, Melanie J. Dunn
The Southeastern Librarian
The term wiki, derived from the Hawaiian adjective “wiki wiki” meaning quick or fast, was coined by Ward Cunningham who created the original WikiWikiWeb for the Portland Pattern Repository (Leuf, 2001, 15). Touted by Cunningham as “the simplest online database that could possibly work” (Cunningham, 2002, June 27) “ wiki” is alternately used to refer to both a wiki website and the software used to create and maintain it and was designed to allow multiple users to collaborate in its development (Klobas 2006, 3). Wikipedia is perhaps one of the best examples, as well as the most recognized, of wikis. …
“Advancing With The Times: Industrial Design Protection In The Era Of Virtual Migration”, Horacio E. Gutiérrez
“Advancing With The Times: Industrial Design Protection In The Era Of Virtual Migration”, Horacio E. Gutiérrez
IP Theory
No abstract provided.
Determinants In Sustaining A Local Information System In The Philippines: The Case Of The Barangay Management Information System (Bmis), Charina P. Maneja, Nancy A. Tandang, Merlyne M. Paunlagui
Determinants In Sustaining A Local Information System In The Philippines: The Case Of The Barangay Management Information System (Bmis), Charina P. Maneja, Nancy A. Tandang, Merlyne M. Paunlagui
Journal of Public Affairs and Development
Information is important for the executive and legislative functions of local officials. The study determined the institutional and individual factors that contributed in sustaining a Barangay Management Information System (BMIS). The study was done in five provinces covering 90 randomly selected continuing barangays and 68 randomly selected non-continuing barangays. Chi-square Test of Independence was used to determine factors associated with whether the barangay will continue to sustain BMIS or not. Logistic regression analysis was also performed to determine factors that may influence barangay's decision to sustain BMIS. The identified significant individual factors that influenced the barangays' decision to sustain BMIS …
Identifying And Attributing Similar Traces With Greatest Common Factor Analysis, Fred Cohen
Identifying And Attributing Similar Traces With Greatest Common Factor Analysis, Fred Cohen
Journal of Digital Forensics, Security and Law
This paper presents an algorithm for comparing large numbers of traces to each other and identifying and presenting groups of traces with similar features. It is applied to forensic analysis in which groups of similar traces are automatically identified and presented so that attribution and other related claims may be asserted, and independently confirmed or refuted. The approach of this paper is to identify an approximate algorithm that will find a large subset of greatest common factor similar groups of arbitrary factors in far less time and space than an exact algorithm using examiner-provided selection criteria for factor definition.
Coding Theorems On A Non-Additive Generalized Entropy Of Havrda-Charvat And Tsallis, Satish Kumar, Arun Choudhary
Coding Theorems On A Non-Additive Generalized Entropy Of Havrda-Charvat And Tsallis, Satish Kumar, Arun Choudhary
Applications and Applied Mathematics: An International Journal (AAM)
A new measure Lβα, called average code word length of order α and type β is defined and its relationship with a generalized information measure of order α and type β is discussed. Using Lβα , some coding theorems are proved.
Geometric Programming Subject To System Of Fuzzy Relation Inequalities, Elyas Shivanian, Mahdi Keshtkar, Esmaile Khorram
Geometric Programming Subject To System Of Fuzzy Relation Inequalities, Elyas Shivanian, Mahdi Keshtkar, Esmaile Khorram
Applications and Applied Mathematics: An International Journal (AAM)
In this paper, an optimization model with geometric objective function is presented. Geometric programming is widely used; many objective functions in optimization problems can be analyzed by geometric programming. We often encounter these in resource allocation and structure optimization and technology management, etc. On the other hand, fuzzy relation equalities and inequalities are also used in many areas. We here present a geometric programming model with a monomial objective function subject to the fuzzy relation inequality constraints with maxproduct composition. Simplification operations have been given to accelerate the resolution of the problem by removing the components having no effect on …
Numerical Solution Of Interval And Fuzzy System Of Linear Equations, Suparna Das, S. Chakraverty
Numerical Solution Of Interval And Fuzzy System Of Linear Equations, Suparna Das, S. Chakraverty
Applications and Applied Mathematics: An International Journal (AAM)
A system of linear equations, in general is solved in open literature for crisp unknowns, but in actual case the parameters (coefficients) of the system of linear equations contain uncertainty and are less crisp. The uncertainties may be considered in term of interval or fuzzy number. In this paper, a detail of study of linear simultaneous equations with interval and fuzzy parameter (triangular and trapezoidal) has been performed. New methods have been proposed for solving such systems. First, the methods have been tested for known problems viz. a circuit analysis solved in the literature and the results are found to …
Introducing An Efficient Modification Of The Variational Iteration Method By Using Chebyshev Polynomials, M. M. Khader
Introducing An Efficient Modification Of The Variational Iteration Method By Using Chebyshev Polynomials, M. M. Khader
Applications and Applied Mathematics: An International Journal (AAM)
In this article an efficient modification of the variational iteration method (VIM) is presented using Chebyshev polynomials. Special attention is given to study the convergence of the proposed method. The new modification is tested for some examples to demonstrate reliability and efficiency of the proposed method. A comparison of our numerical results those of the conventional numerical method, the fourth-order Runge-Kutta method (RK4) are given. The comparison shows that the solution using our modification is fast-convergent and is in excellent conformance with the exact solution. Finally, we conclude that the proposed method can be applied to a large class of …
A New Four Point Circular-Invariant Corner-Cutting Subdivision For Curve Design, Jian-Ao Lian
A New Four Point Circular-Invariant Corner-Cutting Subdivision For Curve Design, Jian-Ao Lian
Applications and Applied Mathematics: An International Journal (AAM)
A 4-point nonlinear corner-cutting subdivision scheme is established. It is induced from a special C-shaped biarc circular spline structure. The scheme is circular-invariant and can be effectively applied to 2-dimensional (2D) data sets that are locally convex. The scheme is also extended adaptively to non-convex data. Explicit examples are demonstrated.
Towards Self-Emancipation In Ict For Development Research: Narratives About Respect, Traditional Leadership And Building Networks Of Friendships In Rural South Africa, Kirstin Krauss
The African Journal of Information Systems
In this paper, the author contends that if the outsider-researcher involved in Information and Communication Technology for Development really wants to make a difference and honestly address the emancipatory interests of the developing community, social transformation will have to occur on both sides of the “development divide.” This statement implies both an understanding of the researcher’s own ethnocentrism, prejudice, assumptions and inabilities as well as local concerns, needs, expectations and realities. Using critical social theory as a position of inquiry and learning from the enculturation phases of critical ethnographic fieldwork in a deep rural part of South Africa, the paper …
Section Abstracts: Computer Science
Section Abstracts: Computer Science
Virginia Journal of Science
Abstracts of the Computer Science Section for the 90th Annual Meeting of the Virginia Academy of Science, May 23-25, 2012, Norfolk State University, Norfolk, Virginia.
Table Of Contents
Journal of Digital Forensics, Security and Law
No abstract provided.