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Articles 841 - 870 of 956

Full-Text Articles in Computer Sciences

Anatomy Of An Arabetic Type Design, Saad D. Abulhab Jan 2008

Anatomy Of An Arabetic Type Design, Saad D. Abulhab

Publications and Research

Arabetic type design, like type design in general, should not be limited by rigid rules, other than those advocating open choice and user options. But as with all design fields, highlighting certain principles and guidelines is crucial to realizing a successful project. In an Arabetic font design environment, such guidelines and principles should reveal deeper understanding of various scripts visual and behavioral defining characteristics rather than mere traditional calligraphic and handwriting norms. A main goal of this study is to emphasize that designing Arabetic fonts is much easier than it is portrayed, and designers of all backgrounds should be more …


Reasoning About The Behavior Of Aspect-Oriented Programs, Neelam Soundarajan, Raffi Khatchadourian, Johan Dovland Nov 2007

Reasoning About The Behavior Of Aspect-Oriented Programs, Neelam Soundarajan, Raffi Khatchadourian, Johan Dovland

Publications and Research

Aspect-oriented programming (AOP) has become increasingly popular over the last few years. At the same time, reasoning about the behavior of these programs poses serious challenges. In this paper, we present a rely-guarantee approach to such reasoning. The rely-guarantee approach has proven useful in reasoning about concurrent and distributed programs. We show that some of the key problems encountered in reasoning about aspect-oriented programs are similar to those encountered in reasoning about concurrent programs; and that the rely-guarantee approach, appropriately modified, helps address these problems. We illustrate our approach with a simple example.


Automated Refactoring Of Legacy Java Software To Enumerated Types, Raffi Khatchadourian, Jason Sawin, Atanas Rountev Oct 2007

Automated Refactoring Of Legacy Java Software To Enumerated Types, Raffi Khatchadourian, Jason Sawin, Atanas Rountev

Publications and Research

Modern Java languages introduce several new features that offer significant improvements over older Java technology. In this article we consider the new enum construct, which provides language support for enumerated types. Prior to recent Java languages, programmers needed to employ various patterns (e.g., the weak enum pattern) to compensate for the absence of enumerated types in Java. Unfortunately, these compensation patterns lack several highly-desirable properties of the enum construct, most notably, type safety. We present a novel fully-automated approach for transforming legacy Java code to use the new enumeration construct. This semantics-preserving approach increases type safety, produces code that is …


Automated Refactoring Of Legacy Java Software To Enumerated Types, Raffi Khatchadourian, Jason Sawin, Atanas Rountev Apr 2007

Automated Refactoring Of Legacy Java Software To Enumerated Types, Raffi Khatchadourian, Jason Sawin, Atanas Rountev

Publications and Research

Modern Java languages introduce several new features that offer significant improvements over older Java technology. In this article we consider the new enum construct, which provides language support for enumerated types. Prior to recent Java languages, programmers needed to employ various patterns (e.g., the weak enum pattern) to compensate for the absence of enumerated types in Java. Unfortunately, these compensation patterns lack several highly-desirable properties of the enum construct, most notably, type safety. We present a novel fully-automated approach for transforming legacy Java code to use the new enumeration construct. This semantics-preserving approach increases type safety, produces code that is …


Rely-Guarantee Approach To Reasoning About Aspect-Oriented Programs, Raffi Khatchadourian, Neelam Soundarajan Mar 2007

Rely-Guarantee Approach To Reasoning About Aspect-Oriented Programs, Raffi Khatchadourian, Neelam Soundarajan

Publications and Research

Over the last few years, the question of reasoning about aspect-oriented programs has been addressed by a number of authors. In this paper, we present a rely-guarantee approach to such reasoning. The rely-guarantee approach has proven extremely successful in reasoning about concurrent and distributed programs. We show that some of the key problems encountered in reasoning about aspect-oriented programs are similar to those encountered in reasoning about concurrent programs; and that the rely-guarantee approach, appropriately modified, helps address these problems. We illustrate our approach with a simple example.


Tr-2007011: Numerical Computation Of Determinants With Additive Preconditioning, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt, I. Taj-Eddin Jan 2007

Tr-2007011: Numerical Computation Of Determinants With Additive Preconditioning, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt, I. Taj-Eddin

Computer Science Technical Reports

No abstract provided.


Tr-2007010: Error-Free Computations Via Floating-Point Operations, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt Jan 2007

Tr-2007010: Error-Free Computations Via Floating-Point Operations, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt

Computer Science Technical Reports

No abstract provided.


Tr-2007007: Independent Component Analysis: An Introduction, Rave Harpaz Jan 2007

Tr-2007007: Independent Component Analysis: An Introduction, Rave Harpaz

Computer Science Technical Reports

No abstract provided.


Tr-2007009: Computations In The Null Spaces With Additive Preprocessing, Victor Y. Pan Jan 2007

Tr-2007009: Computations In The Null Spaces With Additive Preprocessing, Victor Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2007014: The Schur Aggregation And Extended Iterative Refinement, V. Y. Pan, B. Murphy, R. E. Rosholt Jan 2007

Tr-2007014: The Schur Aggregation And Extended Iterative Refinement, V. Y. Pan, B. Murphy, R. E. Rosholt

Computer Science Technical Reports

No abstract provided.


Tr-2007001: On Developing User Interfaces For Children In Educational Virtual Reality Environments, Lori Scarlatos, Rebecca Friedman Jan 2007

Tr-2007001: On Developing User Interfaces For Children In Educational Virtual Reality Environments, Lori Scarlatos, Rebecca Friedman

Computer Science Technical Reports

No abstract provided.


Tr-2007020: S4lp And Local Realizability, Melvin Fitting Jan 2007

Tr-2007020: S4lp And Local Realizability, Melvin Fitting

Computer Science Technical Reports

No abstract provided.


Tr-2007002: Additive Preconditioning And Aggregation In Matrix Computations, Victor Y. Pan, Brian Murphy, Rhys Eric Rosholt, Dmitriy Ivolgin, Yuqing Tang, Xiaodong Yan Jan 2007

Tr-2007002: Additive Preconditioning And Aggregation In Matrix Computations, Victor Y. Pan, Brian Murphy, Rhys Eric Rosholt, Dmitriy Ivolgin, Yuqing Tang, Xiaodong Yan

Computer Science Technical Reports

No abstract provided.


Tr-2007004: Additive Preconditioning, Eigenspaces, And The Inverse Iteration, Victor Y. Pan, Xiaodong Yan Jan 2007

Tr-2007004: Additive Preconditioning, Eigenspaces, And The Inverse Iteration, Victor Y. Pan, Xiaodong Yan

Computer Science Technical Reports

No abstract provided.


Tr-2007005: Interpreting Knowledge Into Belief In The Presence Of Negative Introspection, Evan Goris Jan 2007

Tr-2007005: Interpreting Knowledge Into Belief In The Presence Of Negative Introspection, Evan Goris

Computer Science Technical Reports

No abstract provided.


Tr-2007006: Realizing Substitution Instances Of Modal Theorems, Melvin Fitting Jan 2007

Tr-2007006: Realizing Substitution Instances Of Modal Theorems, Melvin Fitting

Computer Science Technical Reports

No abstract provided.


Tr-2007008: The Satisfiability Problem—From The Theory Of Np-Completeness To State-Of-The-Art Sat Solvers, Rave Harpaz Jan 2007

Tr-2007008: The Satisfiability Problem—From The Theory Of Np-Completeness To State-Of-The-Art Sat Solvers, Rave Harpaz

Computer Science Technical Reports

No abstract provided.


Tr-2007015: Justification Logics And Conservative Extensions, Melvin Fitting Jan 2007

Tr-2007015: Justification Logics And Conservative Extensions, Melvin Fitting

Computer Science Technical Reports

No abstract provided.


Tr-2007017: Linear Logic With Explicit Resources, Hirohiko Kushida Jan 2007

Tr-2007017: Linear Logic With Explicit Resources, Hirohiko Kushida

Computer Science Technical Reports

No abstract provided.


Tr-2007019: Justification Logic, Sergei Artemov Jan 2007

Tr-2007019: Justification Logic, Sergei Artemov

Computer Science Technical Reports

No abstract provided.


Tr-2007021: Row-Column Pivoting In Gaussian Elimination, Victor Y. Pan, Guoliang Qian, Ai-Long Zheng, Severin Ngnosse Jan 2007

Tr-2007021: Row-Column Pivoting In Gaussian Elimination, Victor Y. Pan, Guoliang Qian, Ai-Long Zheng, Severin Ngnosse

Computer Science Technical Reports

No abstract provided.


Tr-2007022: The Schur Aggregation For Linear Systems And Determinants, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt Jan 2007

Tr-2007022: The Schur Aggregation For Linear Systems And Determinants, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt

Computer Science Technical Reports

No abstract provided.


Tr-2007023: The Schur Aggregation For Linear Systems And Determinants, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt Jan 2007

Tr-2007023: The Schur Aggregation For Linear Systems And Determinants, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt

Computer Science Technical Reports

No abstract provided.


Tr-2007024: A Register-Free Abstract Prolog Machine With Jumbo Instructions, Neng-Fa Zhou Jan 2007

Tr-2007024: A Register-Free Abstract Prolog Machine With Jumbo Instructions, Neng-Fa Zhou

Computer Science Technical Reports

No abstract provided.


Tr-2007025: Public Communication In Justification Logic, Bryan Renne Jan 2007

Tr-2007025: Public Communication In Justification Logic, Bryan Renne

Computer Science Technical Reports

No abstract provided.


Tr-2007003: Additive Preconditioning For Matrix Computations, Victor Y. Pan, Dmitriy Ivolgin, Brian Murphy, Rhys Eric Rosholt, Yuqing Tang, Xiaodong Yan Jan 2007

Tr-2007003: Additive Preconditioning For Matrix Computations, Victor Y. Pan, Dmitriy Ivolgin, Brian Murphy, Rhys Eric Rosholt, Yuqing Tang, Xiaodong Yan

Computer Science Technical Reports

No abstract provided.


Tr-2007012: The Relative Expressivity Of Public And Private Communication In Bms Logic, Bryan Renne Jan 2007

Tr-2007012: The Relative Expressivity Of Public And Private Communication In Bms Logic, Bryan Renne

Computer Science Technical Reports

No abstract provided.


Tr-2007013: Error-Free Computations Via Floating-Point Operations: The Code, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt Jan 2007

Tr-2007013: Error-Free Computations Via Floating-Point Operations: The Code, V. Y. Pan, B. Murphy, G. Qian, R. E. Rosholt

Computer Science Technical Reports

No abstract provided.


Tr-2007016: Symmetric Logic Of Proofs, Sergei Artemov Jan 2007

Tr-2007016: Symmetric Logic Of Proofs, Sergei Artemov

Computer Science Technical Reports

No abstract provided.


Tr-2007018: Peak Shaving Through Resource Buffering, Amotz Bar-Noy, Matthew P. Johnson, Ou Liu Jan 2007

Tr-2007018: Peak Shaving Through Resource Buffering, Amotz Bar-Noy, Matthew P. Johnson, Ou Liu

Computer Science Technical Reports

No abstract provided.