Technology
1994 Fall Symposium Series Reports
The Association for the Advancement of Artificial Intelligence held its 1994 Fall Symposium Series on November 4-6 at the Monteleone Hotel in New Orleans, Louisiana. This article contains summaries of the five symposia that were conducted: (1) Control of the Physical World by Intelligent Agents, (2) Improving Instruction of Introductory AI, (3) Knowledge Representation for Natural Language Processing in Implemented Systems, (4) Planning and Learning: On to Real Applications, and (5) Relevance.
Countrywide Loan-Underwriting Expert System
Talebzadeh, Houman, Mandutianu, Sanda, Winner, Christian F.
Countrywide loan-underwriting expert system (clues) is an advanced, automated mortgage-underwriting rule-based expert system. The system was developed to increase the production capacity and productivity of Countrywide branches, improve the consistency of underwriting, and reduce the cost of originating a loan. The system receives selected information from the loan application, credit report, and appraisal. It then decides whether the loan should be approved or whether it requires further review by a human underwriter. If the system approves the loan, no further review is required, and the application is funded. clues has been in operation since February 1993 and is currently processing more than 8500 loans each month in over 300 decentralized branches around the country.
Applying Case-Based Reasoning to Manufacturing
Hinkle, David, Toomey, Christopher
's central purpose is to find the most The use of composite materials, Composite part fabrication requires two especially in aerospace applications, is on the major steps: layup and curing. Layup is the increase because of their unique weight and painstaking process in which multiple layers strength qualities. Depending on the orientation of graphite and fiberglass composite material of the graphite fibers, a part can be are fitted by hand on the exterior of a contoured extremely flexible in one direction but rigid mold. In addition, a part made from takes from two to seven days, depending on composite material is both lighter and the size of the mold and the skill of the technician. The increased use of In the second step, curing, the molded graphite parts, as well as the high cost of a composite material is hardened by pressurized spoiled part (as much as $50,000 for a single heating in a large convection autoclave.
The VLS Tech-Assist Expert System
Small, Robert A., Yoshimoto, Bryan
The vertical launch system (vls) tech-assist expert system is being used by the in-service engineering agent as a force multiplier to maintain the readiness, with fewer resources, of a growing population of vlss in the U.S. Navy fleet. This article describes the collaborative development of this knowledge-based system for diagnosis; its main features, including case-based and model-based reasoning; and the lessons we learned from the process.
Intelligent Agents for Interactive Simulation Environments
Tambe, Milind, Johnson, W. Lewis, Jones, Randolph M., Koss, Frank, Laird, John E., Rosenbloom, Paul S., Schwamb, Karl
Interactive simulation environments constitute one of today's promising emerging technologies, with applications in areas such as education, manufacturing, entertainment, and training. These environments are also rich domains for building and investigating intelligent automated agents, with requirements for the integration of a variety of agent capabilities but without the costs and demands of low-level perceptual processing or robotic control. Our project is aimed at developing humanlike, intelligent agents that can interact with each other, as well as with humans, in such virtual environments. Our current target is intelligent automated pilots for battlefield-simulation environments. These dynamic, interactive, multiagent environments pose interesting challenges for research on specialized agent capabilities as well as on the integration of these capabilities in the development of "complete" pilot agents. We are addressing these challenges through development of a pilot agent, called TacAir-Soar, within the Soar architecture. This article provides an overview of this domain and project by analyzing the challenges that automated pilots face in battlefield simulations, describing how TacAir-Soar is successfully able to address many of them -- TacAir-Soar pilots have already successfully participated in constrained air-combat simulations against expert human pilots -- and discussing the issues involved in resolving the remaining research challenges.
Applied AI News
Hughes Missile Systems (Tucson, Lear Astronics (Santa Monica and to "enter" the surgical area, as if they Ariz.) is providing intelligent character Ontario, Calif.) is combining neural were actually there. Cross/Blue Shield (New York, N.Y.) to enhance its Autonomous Landing FuziWare (Knoxville, Tenn.), a developer expedite the processing of medical Guidance (ALG) system. Empire will install the is using a neural network-based tools for business and engineering ICRs at its Yorktown Heights and massively parallel coprocessor for solutions, has received a patent from Manhattan offices, where they will be real-time image processing in the the U.S. Department of Commerce ALG system, which enables commercial Patent and Trademark Office for its used to process about 10,000 documents and military aircraft pilots to FuziCalc product, a fuzzy spreadsheet per day. The claims in the patent cover various fuzzy number The Boston Museum of Fine Arts Researchers at Georgia Tech (Atlanta, interface elements as well as the (Boston, Mass.) has developed a virtual Ga.) have created intelligent agent entire fuzzy number processing system. TOAK navigates and surgical equipment, has implemented through multiple networks and a virtual reality application a complex 3D model derived from across diverse computer systems to for technical design presentation.
Using Knowledge in Its Context: Report on the IJCAI-93 Workshop
Brezillon, Patrick, Abu-Hakima, Suhayya
The Workshop on Using Knowledge in Its Context was held in Chambery, France, on 28 August 1993, preceding the Thirteenth International Joint Conference on Artificial Intelligence (IJCAI-93). This article provides a summary of the discussions between the participants before (by e-mail) and during the one-day workshop. It is clear from these discussions that the notion of context is far from defined and is dependent in its interpretation on a cognitive science versus an engineering (or system building) point of view. In identifying the two points of view, this workshop permitted us to go one step further than previous workshops (notably Maskery and Meads [1992] and Maskery, Hopkins, and Dudley [1992]). Once a distinction is made on the viewpoint, one can achieve a surprising consensus on the aspects of context that the workshop addressed -- mainly, the position, the elements, the representation, and the use of context. Despite this consensus on the aspects of context, agreement on the definition of context was not yet achieved.
Routine Design for Mechanical Engineering
Brinkop, Axel, Laudwein, Norbert, Maasen, Rudiger
COMIX (configuration of mixing machines) is a system that assists members of the EKATO Sales Department in designing a mixing machine that fulfills the requirements of a customer. It is used to help the engineer design the requested machine and prepare an offer that's to be submitted to the customer. comix integrates more traditional software techniques with explicit knowledge representation and constraint propagation. During the process of routine design, some design decisions have to be made with uncertainty. By including knowledge from process technology and company experience in the mechanical design, a sufficiently high degree of flexibility is achieved that the system can even assist in difficult design situations. The success of the system can be measured by the increase in the quantity and the quality of the submitted offers.
The Simon Newcomb Awards
Hayes, Patrick J., Ford, Kenneth M.
We also was the Stopping Problem argument. Achievement Award' in recognition aeroplane," suggested Newcomb sarcastically, This means, in effect, sentence. Most versions of this argument that the hardware must be - Joseph Rychlak of Loyola University miss these subtle aspects and accommodated as information is of Chicago (for his exclusive-OR are therefore simply invalid, but Penrose processed. Hubert has been accessible via the intellect only. Much of the content of with it...mathematicians interpreted in binary fashion: these books consists of the kind of communicate...by each one having "either x or y, but not both."
On the Informativeness of the DNA Promoter Sequences Domain Theory
The DNA promoter sequences domain theory and database havebecome popular for testing systems that integrate empirical andanalytical learning. This note reports a simple change andreinterpretation of the domain theory in terms of M-of-N concepts,involving no learning, that results in an accuracy of 93.4% on the 106items of the database. Moreover, an exhaustive search of the space ofM-of-N domain theory interpretations indicates that the expectedaccuracy of a randomly chosen interpretation is 76.5%, and that amaximum accuracy of 97.2% is achieved in 12 cases. This demonstratesthe informativeness of the domain theory, without the complications ofunderstanding the interactions between various learning algorithms andthe theory. In addition, our results help characterize the difficultyof learning using the DNA promoters theory.