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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Why We Do Not Evolve Software? Analysis Of Evolutionary Algorithms, Roman V. Yampolskiy
Why We Do Not Evolve Software? Analysis Of Evolutionary Algorithms, Roman V. Yampolskiy
Faculty Scholarship
In this article, we review the state-of-the-art results in evolutionary computation and observe that we do not evolve nontrivial software from scratch and with no human intervention. A number of possible explanations are considered, but we conclude that computational complexity of the problem prevents it from being solved as currently attempted. A detailed analysis of necessary and available computational resources is provided to support our findings.
A Psychopathological Approach To Safety Engineering In Ai And Agi, Vahid Behzadan, Arslan Munir, Roman V. Yampolskiy
A Psychopathological Approach To Safety Engineering In Ai And Agi, Vahid Behzadan, Arslan Munir, Roman V. Yampolskiy
Faculty Scholarship
The complexity of dynamics in AI techniques is already approaching that of complex adaptive systems, thus curtailing the feasibility of formal controllability and reachability analysis in the context of AI safety. It follows that the envisioned instances of Artificial General Intelligence (AGI) will also suffer from challenges of complexity. To tackle such issues, we propose the modeling of deleterious behaviors in AI and AGI as psychological disorders, thereby enabling the employment of psychopathological approaches to analysis and control of misbehaviors. Accordingly, we present a discussion on the feasibility of the psychopathological approaches to AI safety, and propose general directions for …
The Singularity May Be Near, Roman V. Yampolskiy
The Singularity May Be Near, Roman V. Yampolskiy
Faculty Scholarship
Toby Walsh in "The Singularity May Never Be Near" gives six arguments to support his point of view that technological singularity may happen, but that it is unlikely. In this paper, we provide analysis of each one of his arguments and arrive at similar conclusions, but with more weight given to the "likely to happen" prediction.
Catalysts For Nitrogen Reduction To Ammonia, Royce D. Duda, Julie N. Renner
Catalysts For Nitrogen Reduction To Ammonia, Royce D. Duda, Julie N. Renner
Faculty Scholarship
The production of synthetic ammonia remains dependent on the energy- and capital-intensive Haber-Bosch process. Extensive research in molecular catalysis has demonstrated ammonia production from dinitrogen, albeit at low production rates. Mechanistic understanding of dinitrogen reduction to ammonia continues to be delineated through study of molecular catalyst structure, as well as through understanding the naturally occurring nitrogenase enzyme. The transition to Haber-Bosch alternatives through robust, heterogeneous catalyst surfaces remains an unsolved research challenge. Catalysts for electrochemical reduction of dinitrogen to ammonia are a specific focus of research, due to the potential to compete with the Haber-Bosch process and reduce associated carbon …
Reaction Mechanism For Oxygen Evolution On Ruo2, Iro2, And Ruo2@Iro2 Core-Shell Nanocatalysts, Julie N. Renner
Reaction Mechanism For Oxygen Evolution On Ruo2, Iro2, And Ruo2@Iro2 Core-Shell Nanocatalysts, Julie N. Renner
Faculty Scholarship
Iridium dioxide, IrO2, is second to the most active RuO2 catalyst for the oxygen evolution reaction (OER) in acid, and is used in proton exchange membrane water electrolyzers due to its high durability. To improve the activity of IrO2-based catalysts, we prepared RuO2@IrO2 core-shell nanocatalysts using carbon-supported Ru as the template. At 1.48 V, the OER specific activity of RuO2@IrO2 is threefold that of IrO2. While the activity volcano plots over wide range of materials have been reported, zooming into the top region to clarify the rate limiting steps of most active catalysts is important for further activity enhancement. Here, …
Wisdom Of Artificial Crowds Feature Selection In Untargeted Metabolomics: An Application To The Development Of A Blood-Based Diagnostic Test For Thrombotic Myocardial Infarction, Patrick J. Trainor, Roman V. Yampolskiy, Andrew P. Defilippis
Wisdom Of Artificial Crowds Feature Selection In Untargeted Metabolomics: An Application To The Development Of A Blood-Based Diagnostic Test For Thrombotic Myocardial Infarction, Patrick J. Trainor, Roman V. Yampolskiy, Andrew P. Defilippis
Faculty Scholarship
Introduction: Heart disease remains a leading cause of global mortality. While acute myocardial infarction (colloquially: heart attack), has multiple proximate causes, proximate etiology cannot be determined by a blood-based diagnostic test. We enrolled a suitable patient cohort and conducted a non-targeted quantification of plasma metabolites by mass spectrometry for developing a test that can differentiate between thrombotic MI, non-thrombotic MI, and stable disease. A significant challenge in developing such a diagnostic test is solving the NP-hard problem of feature selection for constructing an optimal statistical classifier. Objective: We employed a Wisdom of Artificial Crowds (WoAC) strategy for solving the feature …
Ambulatory Clinic Exam Room Design With Respect To Computing Devices: A Laboratory Simulation Study, Dustin T. Weiler, Tyler Satterly, Shakaib U. Rehman, Maury A. Nussbaum, Neale R. Chumbler, Gary M. Fischer, Jason J. Saleem
Ambulatory Clinic Exam Room Design With Respect To Computing Devices: A Laboratory Simulation Study, Dustin T. Weiler, Tyler Satterly, Shakaib U. Rehman, Maury A. Nussbaum, Neale R. Chumbler, Gary M. Fischer, Jason J. Saleem
Faculty Scholarship
Background—Challenges persist regarding how to integrate computing effectively into the exam room, while maintaining patient-centered care. Purpose—Our objective was to evaluate a new exam room design with respect to the computing layout, which included a wall-mounted monitor for ease of (re)-positioning. Methods—In a lab-based experiment, 28 providers used prototypes of the new and older “legacy” outpatient exam room layouts in a within-subject comparison using simulated patient encounters. We measured efficiency, errors, workload, patient-centeredness (proportion of time the provider was focused on the patient), amount of screen sharing with the patient, workflow integration, and provider situation awareness. Results—There were no statistically …
Performance, Workload, And Usability In A Multiscreen, Multi-Device, Information-Rich Environment, Jason J. Saleem, Dustin T. Weiler
Performance, Workload, And Usability In A Multiscreen, Multi-Device, Information-Rich Environment, Jason J. Saleem, Dustin T. Weiler
Faculty Scholarship
Potential benefits of multiscreen and multiple device environments were assessed using three different computing environments. A single factor, within-subject study was conducted with 18 engineering students in a laboratory experiment. Three levels for the computing environment factor included one with a desktop computer with a single monitor (control, condition A); one with a desktop with dual monitors, as well as a single tablet computer (condition B); and one with a desktop with a single monitor, as well as two tablet computers (condition C). There was no statistically significant difference in efficiency or workload when completing scenarios for the three computing …