Industry
Semantics for Digital Engineering Archives Supporting Engineering Design Education
Regli, William C. (Drexel University) | Kopena, Joseph B. (Drexel University) | Grauer, Michael (Drexel University) | Simpson, Timothy W. (Penn State University) | Stone, Robert B. (Oregon State University) | Lewis, Kemper (University at Buffalo - SUNY) | Bohm, Matt R. (Oregon State University) | Wilkie, David (Drexel University) | Piecyk, Martin (Drexel University) | Osecki, Jordan (Drexel University)
This article introduces the challenge of digital preservation in the area of engineering design and manufacturing and presents a methodology to apply knowledge representation and semantic techniques to develop Digital Engineering Archives. This work is part of an ongoing, multiuniversity, effort to create cyber infrastructure-based engineering repositories for undergraduates (CIBER-U) to support engineering design education. The technical approach is to use knowledge representation techniques to create formal models of engineering data elements, workflows and processes. With these formal engineering knowledge and processes can be captured and preserved with some guarantee of long-term interpretability.
An Integrated Modeling Environment to Study the Co-evolution of Networks, Individual Behavior and Epidemics
Barrett, Christopher (Network Dynamics and Sim Science Lab) | Bisset, Keith (Network Dynamics and Sim Science Lab) | Leidig, Jonathan (Network Dynamics and Sim Science Lab) | Marathe, Achla (Network Dynamics and Sim Science Lab) | Marathe, Madhav V. (Network Dynamics and Sim Science Lab)
We discuss an interaction-based approach to study the coevolution between socio-technical networks, individual behaviors, and contagion processes on these networks. Finally, models of individual behaviors are composed with disease progression models to develop a realistic representation of the complex system in which individual behaviors and the social network adapt to the contagion. These methods are embodied within Simdemics – a general purpose modeling environment to support pandemic planning and response. New advances in network science, machine learning, high performance computing, data mining and behavioral modeling were necessary to develop Simdemics.
Reports of the AAAI 2009 Fall Symposia
Azevedo, Roger (University of Memphis) | Bench-Capon, Trevor (University of Liverpool) | Biswas, Gautam (Vanderbilt University) | Carmichael, Ted (University of North Carolina at Charlotte) | Green, Nancy (University of North Carolina at Greensboro) | Hadzikadic, Mirsad (University of North Carolina at Charlotte) | Koyejo, Oluwasanmi (University of Texas) | Kurup, Unmesh (Rensselaer Polytechnic Institute) | Parsons, Simon (Brooklyn College, City University of New York) | Pirrone, Roberto (University of Pirrone) | Prakken, Henry (Utrecht University) | Samsonovich, Alexei (George Mason University) | Scott, Donia (Open University) | Souvenir, Richard (University of North Carolina at Charlotte)
The Association for the Advancement of Artificial Intelligence was pleased to present the 2009 Fall Symposium Series, held Thursday through Saturday, November 5–7, at the Westin Arlington Gateway in Arlington, Virginia. The Symposium Series was preceded on Wednesday, November 4 by a one-day AI funding seminar. The titles of the seven symposia were as follows: (1) Biologically Inspired Cognitive Architectures, (2) Cognitive and Metacognitive Educational Systems, (3) Complex Adaptive Systems and the Threshold Effect: Views from the Natural and Social Sciences, (4) Manifold Learning and Its Applications, (5) Multirepresentational Architectures for Human-Level Intelligence, (6) The Uses of Computational Argumentation, and (7) Virtual Healthcare Interaction.
Searching for Gas Turbine Maintenance Schedules
Bohlin, Markus (Swedish Institute of Computer Science) | Doganay, Kivanc (Swedish Institute of Computer Science) | Kreuger, Per (Swedish Institute of Computer Science) | Steinert, Rebecca (Swedish Institute of Computer Science) | Warja, Mathias (Siemens Industrial Turbomachinery AB)
Preventive maintenance schedules occurring in industry are often suboptimal with regard to maintenance coal-location, loss-of-production costs and availability. We describe the implementation and deployment of a software decision support tool for the maintenance planning of gas turbines, with the goal of reducing the direct maintenance costs and the often costly production losses during maintenance downtime. The optimization problem is formally defined, and we argue that the feasibility version is NP-complete. We outline a heuristic algorithm that can quickly solve the problem for practical purposes and validate the approach on a real-world scenario based on an oil production facility. We also compare the performance of our algorithm with results from using integer programming, and discuss the deployment of the application. The experimental results indicate that downtime reductions up to 65% can be achieved, compared to traditional preventive maintenance. In addition, the use of our tool is expected to improve availability with up to 1% and reduce the number of planned maintenance days by 12%. Compared to a integer programming approach, our algorithm is not optimal, but is much faster and produces results which are useful in practice. Our test results and SIT AB’s estimates based< on operational use both indicate that significant savings can be achieved by using our software tool, compared to maintenance plans with fixed intervals.
AAAI Conferences Calendar
IEA/AIE-10 will be held June 1-4, 2010, in Cordoba, Spain. AI Twelfth International Conference Magazine also maintains a calendar listing that includes nonaffiliated conferences on Enterprise Information Systems. ICEIS 2010 will be held June 8-12, 2010, in Funchal, Portugal. AAAI-12 and Seventh International Conference Fourth International Conference on IAAI-12 will be held July 22-26, 2012, on Informatics in Control, Automation Weblogs and Social Media. AAAI-10 and IAAI-10 will be held July and Reasoning.
The IJCAI-09 Workshop on Learning Structural Knowledge From Observations (STRUCK-09)
Kuter, Ugur (University of Maryland) | Munoz-Avila, Hector (Lehigh University)
These formalisms have in common the use of certain kinds of constructs (for example, objects, goals, skills, and tasks) that represent knowledge of varying degrees of complexity and that are connected through structural relations. In recent years, we have observed increasing interest toward the problem of learning such structural knowledge from observations. These observations range from traces generated by an automated planner to video feeds from a robot performing some actions. The goal of the workshop was to bring researchers together from machine learning, automated planning, case-based reasoning, cognitive science, and other communities that are looking into instances of this problem and to share ideas and perspectives in a common forum.
Robotics: Science and Systems
Trinkle, Jeff (Rensselaer Polytechnic Institute) | Matsuoka, Yoky (University of Washington)
The conference Robotics: Science and Systems was held at the University of Washington in Seattle, from June 28 to July 1, 2009. More than 300 international researchers attended this single‐track conference to learn about the most exciting robotics research and most advanced robotic systems. The program committee selected 39 papers out of 154 submissions. The program also included invited talks. The plenary presentations were complemented by workshops.
Reports of the AAAI 2009 Fall Symposia
Azevedo, Roger (University of Memphis) | Bench-Capon, Trevor (University of Liverpool) | Biswas, Gautam (Vanderbilt University) | Carmichael, Ted (University of North Carolina at Charlotte) | Green, Nancy (University of North Carolina at Greensboro) | Hadzikadic, Mirsad (University of North Carolina at Charlotte) | Koyejo, Oluwasanmi (University of Texas) | Kurup, Unmesh (Rensselaer Polytechnic Institute) | Parsons, Simon (Brooklyn College, City University of New York) | Pirrone, Roberto (University of Pirrone) | Prakken, Henry (Utrecht University) | Samsonovich, Alexei (George Mason University) | Scott, Donia (Open University) | Souvenir, Richard (University of North Carolina at Charlotte)
Series, held Thursday through Saturday, November 5-7, at he Association for the Advancement of Artificial Intelligence the Westin Arlington Gateway in Arlington, Virginia. The titles of the seven symposia were as follows: (1) Biologically Inspired Cognitive Biologically Inspired Cognitive Architectures Architectures, (2) Cognitive and Metacognitive Cognitive and Metacognitive Educational Systems Educational Systems, (3) Complex Adaptive Complex Adaptive Systems and the Threshold Effect: Views from the Natural Systems and the Threshold Effect: Views and Social Sciences from the Natural and Social Sciences, (4) Manifold Manifold Learning and Its Applications Learning and Its Applications, (5) Multirepresentational Architectures for Human-Level Multirepresentational Architectures for Human-Level Intelligence Intelligence, (6) The Uses of Computational The Uses of Computational Argumentation Argumentation, and (7) Virtual Healthcare Virtual Healthcare Interaction Interaction. An informal reception was held on Thursday, November 5. A general plenary session, in which the highlights of each symposium were presented, was held on Friday, November 6. The challenge of creating a real-life computational equivalent of the human mind requires that we better understand at a computational level how natural intelligent systems develop their cognitive and learning functions. They will behave, variety of disjoined communities and schools of learn, communicate, and "think" as conscious thought that used to speak different languages and beings in general, in addition to being able to perform ignore each other.
An Integrated Modeling Environment to Study the Co-evolution of Networks, Individual Behavior and Epidemics
Barrett, Christopher (Network Dynamics and Sim Science Lab) | Bisset, Keith (Network Dynamics and Sim Science Lab) | Leidig, Jonathan (Network Dynamics and Sim Science Lab) | Marathe, Achla (Network Dynamics and Sim Science Lab) | Marathe, Madhav V. (Network Dynamics and Sim Science Lab)
We discuss an interaction-based approach to study the coevolution between socio-technical networks, individual behaviors, and contagion processes on these networks. We use epidemics in human population as an example of this phenomenon. The methods consist of developing synthetic yet realistic national-scale networks using a first principles approach. Unlike simple random graph techniques, these methods combine real world data sources with behavioral and social theories to synthesize detailed social contact (proximity) networks. Individual-based models of within-host disease progression and inter-host transmission are then used to model the contagion process. Finally, models of individual behaviors are composed with disease progression models to develop a realistic representation of the complex system in which individual behaviors and the social network adapt to the contagion. These methods are embodied within Simdemics – a general purpose modeling environment to support pandemic planning and response. Simdemics is designed specifically to be scalable to networks with 300 million agents – the underlying algorithms and methods in Simdemics are all high-performance computing oriented methods. New advances in network science, machine learning, high performance computing, data mining and behavioral modeling were necessary to develop Simdemics. Simdemics is combined with two other environments, Simfrastructure and Didactic, to form an integrated cyberenvironment. The integrated cyber-environment provides the end-user flexible and seamless Internet based access to Simdemics. Service-oriented architectures play a critical role in delivering the desired services to the end user. Simdemics, in conjunction with the integrated cyber-environment, has been used in over a dozen user defined case studies. These case studies were done to support specific policy questions that arose in the context of planning the response to pandemics (e.g., H1N1, H5N1) and human initiated bio-terrorism events. These studies played a crucial role in the continual development and improvement of the cyber-environment.