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Articles 1 - 10 of 10
Full-Text Articles in Physical Sciences and Mathematics
Systems Ideas For The Scientific And Societal Imperatives Of The Coastal Ocean: Case Of The Bp Oil Gusher In The Gulf Of Mexico, Spring & Summer 2010, Christopher Mooers
Systems Ideas For The Scientific And Societal Imperatives Of The Coastal Ocean: Case Of The Bp Oil Gusher In The Gulf Of Mexico, Spring & Summer 2010, Christopher Mooers
Systems Science Friday Noon Seminar Series
In recent decades, great progress has been made in advancing the scientific understanding of the coastal ocean (i.e., the 200 nautical mile Exclusive Economic Zone (EEZ)) across a broad set of disciplines. Simultaneously, the societal use of the coastal ocean has skyrocketed through, for example, increased shipping & boating, sports & commercial fishing, and exploitation of non-living resources, such as, oil & gas extraction and sand & gravel mining. International law and national policy assign coastal nations the responsibility for stewardship (i.e., wise management) of their respective EEZs. The scope of the stewardship and applications can be summarized as (1) …
Hardware Acceleration Of Inference Computing: The Numenta Htm Algorithm, Dan Hammerstrom
Hardware Acceleration Of Inference Computing: The Numenta Htm Algorithm, Dan Hammerstrom
Systems Science Friday Noon Seminar Series
In this presentation I will describe the latest version of the Numenta HTM Cortical Learning Algorithm and why it is interesting for doing research into radical new computer architectures. Then I will discuss the hardware acceleration research we are doing, and briefly look at some preliminary applications development.
Integer Optimization And Computational Algebraic Topology, Bala Krishnamoorthy
Integer Optimization And Computational Algebraic Topology, Bala Krishnamoorthy
Systems Science Friday Noon Seminar Series
We present recently discovered connections between integer optimization, or integer programming (IP), and homology. Under reasonable assumptions, these results lead to efficient solutions of several otherwise hard-to-solve problems from computational topology and geometric analysis. The main result equates the total unimodularity of the boundary matrix of a simplicial complex to an algebraic topological condition on the complex (absence of relative torsion), which is often satisfied in real-life applications . When the boundary matrix is totally unimodular, the problem of finding the shortest chain homologous under Z (ring of integers) to a given chain, which is inherently an integer program, can …
Systems Views Of The Economics Of Sustainable Development, Joshua Hughes
Systems Views Of The Economics Of Sustainable Development, Joshua Hughes
Systems Science Friday Noon Seminar Series
The mainstream economics of the 20th century (and now 21st century) has often failed to predict what will happen--or explain what has happened--in the real world, even with (or because of?) an ever-increasing reliance on quantitative and computational methods. Since the mid-20th century a number of people part of, or closely associated with, the systems community--economists among them--have provided insights about what is wrong with "traditional" economics. Systems science offers a number of alternative methods for understanding economic systems that take heed of these criticisms, especially in the context of sustainable development. Yet, while promising, few of these alternatives …
Higher-Level Application Of Adaptive Dynamic Programming/Reinforcement Learning – A Next Phase For Controls And System Identification?, George G. Lendaris
Higher-Level Application Of Adaptive Dynamic Programming/Reinforcement Learning – A Next Phase For Controls And System Identification?, George G. Lendaris
Systems Science Friday Noon Seminar Series
Humans have the ability to make use of experience while performing system identification and selecting control actions for changing situations. In contrast to current technological implementations that slow down as more knowledge is stored, as more experience is gained, human processing speeds up and has enhanced effectiveness. An emerging experience-based (“higher level”) approach promises to endow our technology with enhanced efficiency and effectiveness.
The notions of context and context discernment are important to understanding this human ability. These are defined as appropriate to controls and system-identification. Some general background on controls, Dynamic Programming, and Adaptive Critic leading to Adaptive Dynamic …
Building A Decision Aid Right-Side-Out, Barry F. Anderson
Building A Decision Aid Right-Side-Out, Barry F. Anderson
Systems Science Friday Noon Seminar Series
Tools have long been available for improving decision making, yet people who have knowledge of these tools seem reluctant to use them. I consider multiple reasons why this might be so and consider multiple solutions, then present what I believe to be the world's most user-friendly decision aid, which is now nearly ready for beta testing and available at no cost at http://wisedecider.net.
Wise Decider is believed to be unique in having the following features:
- A creative thinking guide and a critical thinking guide that provide context-sensitive advice for problem structuring, evaluation, and implementation.
- A decision table with cells …
Modal Logic And Its Applications, Explained Using Puzzles And Examples, Marek Perkowski
Modal Logic And Its Applications, Explained Using Puzzles And Examples, Marek Perkowski
Systems Science Friday Noon Seminar Series
The talk introduces Modal Logic as an extension of classical propositional and First Order Logics. We discuss motivations of Lewis to create modal logic system, axioms and rules of proof. Several examples illustrate deriving theorems from axioms. "Muddy Children" puzzle is used to explain the principles of dealing with uncertainty problems where a temporal lack of response is used as additional information. Other examples include "Narrow Bridge" problem/game which relates to the problem of necessary evil in the world, robot planning and law and robot morality problems, especially related to military robots and use of force by police. Kripke semantics …
Some Problems And Solutions In The Experimental Science Of Technology: The Proper Use And Reporting Of Statistics In Computational Intelligence, With An Experimental Design From Computational Ethnomusicology, Mehmet Vurkaç
Systems Science Friday Noon Seminar Series
Statistics is the meta-science that lends validity and credibility to The Scientific Method. However, as a complex and advanced Science in itself, Statistics is often misunderstood and misused by scientists, engineers, medical and legal professionals and others. In the area of Computational Intelligence (CI), there have been numerous misuses of statistical techniques leading to the publishing of insupportable results, which, in addition to being a problem in itself, has also contributed to a degree of rift between the Statistics/Statistical Learning community and the Machine Learning/Computational Intelligence community. This talk surveys a number of misuses of statistical inference in CI settings, …
On The Effect Of Criticality And Topology On Learning In Random Boolean Networks, Alireza Goudarzi
On The Effect Of Criticality And Topology On Learning In Random Boolean Networks, Alireza Goudarzi
Systems Science Friday Noon Seminar Series
Random Boolean networks (RBN) are discrete dynamical systems composed of N automata with a binary state, each of which interacts with other automata in the network. RBNs were originally introduced as simplified models of gene regulation. In this presentation, I will present recent work done conjointly with Natali Gulbahce (UCSF), Thimo Rohlf (MPI, CNRS), and Christof Teuscher (PSU). We extend the study of learning in feedforward Boolean networks to random Boolean networks (RBNs) and systematically explore the relationship between the learning capability, the network topology, the system size N, the training sample T, and the complexity of the computational task. …
Information Disclosure And Environmental Performance, Mark Stephan
Information Disclosure And Environmental Performance, Mark Stephan
Systems Science Friday Noon Seminar Series
Scholars and policymakers increasingly argue that information disclosure programs such as the Toxics Release Inventory (TRI) should be used to supplement conventional environmental regulation. Yet we lack a clear understanding of how such programs work as well as the empirical data to confirm their success in achieving environmental quality objectives. To better understand the impacts of environmental information disclosure on corporate decision making, this paper develops an analytic framework drawn from theories of risk perception and communication, individual and corporate decision making, and social capital. I examine the importance of the TRI for facility level behavior through an analysis of …