| Modeling the Interaction between Speech and Gesture |
MAY 94 |
15 pages |
| Authors:
Justine Cassell; Matthew Stone; Brett Douville; Scott Prevost; Brett Achorn; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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 | This paper describes an implemented system that generates spoken dialogue, including speech, intonation, and gesture, using two copies of an identical program that differ only in knowledge of the world and which must cooperate to accomplish a goal. The output of the dialogue generation is used to drive a three-dimensional interactive animated model - two graphic figures on a computer screen who speak and gesture according to the rules of ... |
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| Massively Parallel Simulation of Structured Connectionist Networks |
FEB 94 |
44 pages |
| Authors:
D. R. Mani; Lokendra Shastri; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| We map structured connectionist models of knowledge representation and reasoning onto existing general purpose massively parallel architectures with the objective of developing and implementing practical, real-time knowledge base systems. SHRUTI, a connectionist knowledge representation and reasoning system which attempts to model reflexive reasoning, will serve as our representative connectionist model. Efficient simulation systems for SHRUTI are developed on the Connection Machine CM-2, an SIMD architecture and on the Connection Machine ... |
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| Building a Large Annotated Corpus of English: The Penn Treebank |
30 APR 93 |
25 pages |
| Authors:
Mitch Marcus; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| As a result of this grant, the researchers have now published oil CDROM a corpus of over 4 million words of running text annotated with part-of- speech (POS) tags, with over 3 million words of that material assigned skeletal grammatical structure. This material now includes a fully hand-parsed version of the classic Brown corpus. About one half of the papers at the ACL Workshop on Using Large Text Corpora this ... |
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| Modeling Clothed Figures |
31 AUG 92 |
10 pages |
| Authors:
Norman I. Badler; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| In most workplace environments we have encountered, clothed figures are the norm and would be expected by the designer. Adding clothing to a human figure improves its graphical appearance and realism. Clothes modeling can be done in many ways ranging from very simple to more realistic but complicated. The simplest technique is to change the attributes of certain segments of the body figure; for example, by modifying the colors of ... |
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| Computer Graphics Research Laboratory Quarterly Progress Report Number 43 |
MAY 92 |
141 pages |
| Authors:
Norman I. Badler; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| This report includes descriptions of various projects underway in the Computer Graphics Research Lab during January through March 1992. Included in this document are progress reports on new Jack features, the rule-based Spreadsheet Anthropometric Scaling System, contour bodies, locomotion, collision-avoidance reach, behavioral simulation, 3D motion analysis and reconstruction from monocular 2D views, task animation, radiosity rendering, ray tracing and filtering, and realtime sound interaction. Three Appendices include (A) an update ... |
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| Action Composition for the Animation of Natural Language Instructions |
MAR 92 |
23 pages |
| Authors:
Libby Levison; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| This report is an investigation of issues encountered in generating a short maintenance task simulation from a set of instructions. A method for specifying simulations at a task level, rather than by individual motion, is discussed. The research was conducted using a set of instructions that describe the removal of a Fuel Control Valve from an aircraft. The agent for performing this simulation was the JACK human modeling environment, developed ... |
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| Computational and Neural Network Models for the Analysis of Visual Texture |
04 NOV 91 |
5 pages |
| Authors:
Ruzena Bajcsy; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| The detailed and biological realistic neural model of architectures that utilize Gabor filters for vision computations continues to be the focus of research. Additionally, some further testing of a three layer back propagation learning network for computing slat tilt was undertaken. A model has been developed which simulates the process of texture segmentation in the visual cortex according to the computational model of M.R. Turner et.al. using the McGregor high ... |
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| The Relevance of Connectionism to AI: A Representation and Reasoning Perspective |
SEP 89 |
36 pages |
| Authors:
Lokendra Shastri; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| In this paper it is argued that not only is connectionism relevant to knowledge representation and reasoning, but it also provides an ideal computational architecture for intelligent systems. To justify this claim, certain critical features that any computational architecture capable of supporting intelligent behavior must possess are identified, and then it is shown that the core features of connectionism correspond exactly to these features. It is also argued that connectionism ... |
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| Semantic Domains and Denotational Semantics |
14 FEB 89 |
126 pages |
| Authors:
Carl A. Gunter; Peter D. Mosses; Dana S. Scott; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| This chapter discusses classes of mathematical structures suitable for use as the semantic domains of programming language constructs. Such structures play a significant role in the foundation of denotational semantics. Many categories of domains have been introduced to serve various purposes, but existing theories share several important characteristics. One such common concept is the view of partial elements provided by the theory. This concept of partiality is integral to the ... |
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| Semantics of Types for Database Objects |
FEB 89 |
41 pages |
| Authors:
Atsushi Ohori; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| A number of data models for complex database objects have been proposed. Unfortunately, these data models have not been well integrated in type systems of programming languages. This paper develops a mathematical theory for types and domains of databases that can serve as a 'bridge' between complex data models and type systems of programming languages. Based on this framework, a concrete type system for complex databases objects and its semantic ... |
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| Machine Systems for Exploration and Manipulation a Conceptual Framework and Method of Evaluation |
JAN 89 |
29 pages |
| Authors:
Ruzena Bajcsy; Susan Lederman; Roberta L. Klatzky; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| A conceptual approach to describing and evaluating problem- solving by robotic systems is offered. One particular problem of importance to the field of robotics, disassembly is considered. A general description is provided of an effector system equipped with sensors that interacts with objects for purposes of disassembly and that learns as a result. The system's approach is bottom up, in that it has no a priori knowledge about object categories. ... |
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| A Connectionist System for Rule Based Reasoning with Multi-Place Predicates and Variables |
JAN 89 |
31 pages |
| Authors:
Lokendra Shastri; Venkat Ajjanagadde; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| McCarthy has observed that the representational power of most connectionist systems is restricted to unary predicates applied to a fixed object. More recently, Fodor and Pylyshyn have made a sweeping claim the connectionist systems cannot incorporate systematicity and compositionality. These comments suggest that representing structured knowledge in a connectionist network and using this knowledge in a systematic way is considered difficult if not impossible. The work reported in this paper ... |
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| Landscan: Query Driven Recognition System |
MAR 88 |
4 pages |
| Authors:
Ruzena Bajcsy; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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| LandScan was intended to be an interface not to a database but to an active (and interactive) visual recognition system. That is, rather than searching a body of exiting facts about the domain, the system drives a vision component that will process data supplied to it by two cameras and respond with identification and analysis of objects found in the scene. We currently are looking at a scale model of ... |
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| Analysis and Validation of Human Biodynamic Models. |
27 AUG 1978 |
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| Authors:
N. Badler; MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA DEPT OF COMPUTER AND I NFORMATION SCIENCES
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 | We have integrated a cockpit design program, a crask victim simulator, and a new model of a human body to provide a visual facility for examining and evaluating these models. This research included transforming the motion simulator output to position the realistic body model, combining the body model and the cockpit data in a shaded graphics display, and detecting collisions between the body and the cockpit. Each of these processes ... |
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Reports by Corporate Author
