Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 19 of 19

Full-Text Articles in Physical Sciences and Mathematics

Dynamics Of Propagation Of Premature Impulses In Structurally Remodeled Infarcted Myocardium: A Computational Analysis, Candido Cabo Dec 2014

Dynamics Of Propagation Of Premature Impulses In Structurally Remodeled Infarcted Myocardium: A Computational Analysis, Candido Cabo

Publications and Research

Initiation of cardiac arrhythmias typically follows one or more premature impulses either occurring spontaneously or applied externally. In this study, we characterize the dynamics of propagation of single (S2) and double premature impulses (S3), and the mechanisms of block of premature impulses at structural heterogeneities caused by remodeling of gap junctional conductance (Gj) in infarcted myocardium. Using a sub-cellular computer model of infarcted tissue, we found that |INa,max|, prematurity (coupling interval with the previous impulse), and conduction velocity (CV) of premature impulses change dynamically as they propagate away from the site of initiation. There are fundamental differences between the dynamics …


A Partner-Matching Framework For Social Activity Communities, Chunyu Ai, Wei Zhong, Mingyuan Yan, Feng Gu Dec 2014

A Partner-Matching Framework For Social Activity Communities, Chunyu Ai, Wei Zhong, Mingyuan Yan, Feng Gu

Publications and Research

A lot of daily activities require more than one person to participate and collaborate with each other; however, for many people, it is not easy to find good partners to engage in activities with one another. With the rapid growth of social network applications, more and more people get used to creating connections with people on the social network. Therefore, designing social network framework for partner-matching is significant in helping people to easily find good partners. In this paper, we proposed a framework which can match partners for an active community. In order to improve the matching performance, all users …


Postmodern Fuzzy System Theory: A Deconstruction Approach Based On Kabbalah, Gabriel Burstein, Constantin Virgil Negoita, Menachem Kranz Nov 2014

Postmodern Fuzzy System Theory: A Deconstruction Approach Based On Kabbalah, Gabriel Burstein, Constantin Virgil Negoita, Menachem Kranz

Publications and Research

Modern general system theory proposed a holistic integrative approach based on input-state-output dynamics as opposed to the traditional reductionist detail based approach. Information complexity and uncertainty required a fuzzy system theory, based on fuzzy sets and fuzzy logic. While successful in dealing with analysis, synthesis and control of technical engineering systems, general system theory and fuzzy system theory could not fully deal with humanistic and human-like intelligent systems which combine technical engineering components with human or human-like components characterized by their cognitive, emotional/motivational and behavioral/action levels of operation. Such humanistic systems are essential in artificial intelligence, cognitive and behavioral science …


On The Effects Of Competition Between Agent-Based Double Auction Markets, Kai Cai, Jinzhong Niu, Simon Parsons Jul 2014

On The Effects Of Competition Between Agent-Based Double Auction Markets, Kai Cai, Jinzhong Niu, Simon Parsons

Publications and Research

Real market institutions, stock and commodity exchanges for example, do not occur in isolation. The same stocks and commodities may be listed on multiple exchanges, and traders who want to deal in those goods have a choice of markets in which to trade. While there has been extensive research into agent-based trading in individual markets, there is little work on this kind of multiple market scenario. Our work seeks to address this imbalance, examining how standard economic measures, like allocative efficiency, are affected by the presence of multiple markets for the same good. We find that while dividing traders between …


Intelligent Sampling For Big Data Using Bootstrap Sampling And Chebyshev Inequality, Ashwin Satyanarayana May 2014

Intelligent Sampling For Big Data Using Bootstrap Sampling And Chebyshev Inequality, Ashwin Satyanarayana

Publications and Research

The amount of data being generated and stored is growing exponentially, owed in part to the continuing advances in computer technology. These data present tremendous opportunities in data mining, a burgeoning field in computer science that focuses on the development of methods that can extract knowledge from data. In many real world problems, these data mining algorithms have access to massive amounts of data. Mining all the available data is prohibitive due to computational (time and memory) constraints. Much of the current research is concerned with scaling up data mining algorithms (i.e. improving on existing data mining algorithms for larger …


Tr-2014005: Fast Approximation Algorithms For Computations With Cauchy Matrices And Extensions, Victor Y. Pan Jan 2014

Tr-2014005: Fast Approximation Algorithms For Computations With Cauchy Matrices And Extensions, Victor Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2014003: On The Complexity Of Two-Agent Justification Logic, Antonis Achilleos Jan 2014

Tr-2014003: On The Complexity Of Two-Agent Justification Logic, Antonis Achilleos

Computer Science Technical Reports

No abstract provided.


Tr-2014006: New Algorithms In The Frobenius Matrix Algebra For Polynomial Root-Finding, Victor Y. Pan, Ai-Long Zheng Jan 2014

Tr-2014006: New Algorithms In The Frobenius Matrix Algebra For Polynomial Root-Finding, Victor Y. Pan, Ai-Long Zheng

Computer Science Technical Reports

No abstract provided.


Tr-2014008: Supporting Genp And Low-Rank Approximation With Random Multipliers, Victor Y. Pan, Guoliang Qian, Xiaodong Yan Jan 2014

Tr-2014008: Supporting Genp And Low-Rank Approximation With Random Multipliers, Victor Y. Pan, Guoliang Qian, Xiaodong Yan

Computer Science Technical Reports

No abstract provided.


Tr-2014009: Estimating The Norms Of Random Circulant And Toeplitz Matrices And Their Inverses Ii, Victor Y. Pan, Guoliang Qian, John Svadlenka, Liang Zhao Jan 2014

Tr-2014009: Estimating The Norms Of Random Circulant And Toeplitz Matrices And Their Inverses Ii, Victor Y. Pan, Guoliang Qian, John Svadlenka, Liang Zhao

Computer Science Technical Reports

No abstract provided.


Tr-2014010: Intuitionistic Epistemic Logic, Sergei Artemov, Tudor Protopopescu Jan 2014

Tr-2014010: Intuitionistic Epistemic Logic, Sergei Artemov, Tudor Protopopescu

Computer Science Technical Reports

No abstract provided.


Evolutionary Algorithm Based Approach For Modeling Autonomously Trading Agents, Anil Yaman, Stephen Lucci, Izidor Gertner Jan 2014

Evolutionary Algorithm Based Approach For Modeling Autonomously Trading Agents, Anil Yaman, Stephen Lucci, Izidor Gertner

Publications and Research

The autonomously trading agents described in this paper produce a decision to act such as: buy, sell or hold, based on the input data. In this work, we have simulated autonomously trading agents using the Echo State Network (ESNs) model. We generate a collection of trading agents that use different trading strategies using Evolutionary Programming (EP). The agents are tested on EUR/ USD real market data. The main goal of this study is to test the overall performance of this collection of agents when they are active simultaneously. Simulation results show that using different agents concurrently outperform a single agent …


Tr-2014001: Computer-Aided Reasoning About Knowledge And Justifications, Natalia Novak Jan 2014

Tr-2014001: Computer-Aided Reasoning About Knowledge And Justifications, Natalia Novak

Computer Science Technical Reports

No abstract provided.


Tr-2014002: Proof Complexity And Quantitative Epistemology, Natalia Novak Jan 2014

Tr-2014002: Proof Complexity And Quantitative Epistemology, Natalia Novak

Computer Science Technical Reports

No abstract provided.


Tr-2014004: Justification Logics And Realization, Melvin Fitting Jan 2014

Tr-2014004: Justification Logics And Realization, Melvin Fitting

Computer Science Technical Reports

No abstract provided.


Tr-2014007: Real Polynomial Root-Finding By Means Of Matrix And Polynomial Iterations, Victor Y. Pan Jan 2014

Tr-2014007: Real Polynomial Root-Finding By Means Of Matrix And Polynomial Iterations, Victor Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2014011: Real Polynomial Root-Finding: New Advances, Victor Y. Pan Jan 2014

Tr-2014011: Real Polynomial Root-Finding: New Advances, Victor Y. Pan

Computer Science Technical Reports

No abstract provided.


Virtual Cut-Through: A New Computer Communication Switching Technique, Parviz Kermani, Leonard Kleinrock Jan 2014

Virtual Cut-Through: A New Computer Communication Switching Technique, Parviz Kermani, Leonard Kleinrock

Publications and Research

No abstract provided.


Proceedings Of The 1st Annual Cuny Games Festival, Robert O. Duncan, Joe Bisz, Francesco Crocco, Carlos Hernandez, Kathleen Offenholley, Leah Potter, Maura A. Smale, Cuny Games Network Jan 2014

Proceedings Of The 1st Annual Cuny Games Festival, Robert O. Duncan, Joe Bisz, Francesco Crocco, Carlos Hernandez, Kathleen Offenholley, Leah Potter, Maura A. Smale, Cuny Games Network

Publications and Research

Proceedings of the CUNY Games Conference, held from January 17-18, 2014, at the CUNY Graduate Center and Borough of Manhattan Community College.

Topics in Game Design - Teaching with Virtual and Augmented Realities - Writing with Games - Breaking the Magic Circle: Games & Real Life - Interactive Game Design (What's Your Game Plan? - Designing Ethical Games - Games and Gender - Gaming English Language and Literature - Game, Narrative, Literacy - Teaching with Games - Games, Storytelling, and Narrative - Games and STEM - Learning by Design - Students as Game Designers - Experiencing Reality in Popular Games …