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Artificial Intelligence and Robotics

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Articles 8401 - 8430 of 8475

Full-Text Articles in Physical Sciences and Mathematics

Nanotechnology, Fullereness, & The Golden Mean, Loretta L. Lange May 1996

Nanotechnology, Fullereness, & The Golden Mean, Loretta L. Lange

SWITCH

This article explains how nanotechnology can be used in digital art forms and how it may be used in the near future. The development of nanotechnology has led to breathroughts such as the discovery of buckyballs and fullerenes. Such concepts eventually led to the research into nanobiology. The world of nanotechnology is still considered new and all of the concepts that dabbled into this medium can be expectred to evolve as time goes by.


Artificial Love Life Is As Real As The Real Thing, Professor S. Farsad May 1996

Artificial Love Life Is As Real As The Real Thing, Professor S. Farsad

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This article explains how an experiment by two human subjects stimulates love compared to artificial life. Professor Farsad’s experiment consisted of seven procedures from Stendhal’s work on romantic love, Love (1822). Both this article and experiment aimed to answer the question; Can artificial life feel love in romance?


Rucker, Rudy Rucker May 1996

Rucker, Rudy Rucker

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In this article, Rudy Rucker shares his thoughts on hacking. He summarizes it as normal actions, such as building a car, or kneading clay. He compares hacking to things that are buildable by hand, and views creating computer programs the same way. One of the benefits of creating your own computer programs is that you can customize themn however you want. However customizing software on your own is extremely time consuming. He then goes into further detail about artificial life and how hyperspace works. Hacking bends the cyber reality that we are accustomed to, and modifying programs outside of what …


Rudy Rucker's Calife, Rudy Rucker May 1996

Rudy Rucker's Calife, Rudy Rucker

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This page performs as a guide to Rudy Rucker’s alife programs. The first page explains how to download the source codes as well as the compiled software. It is noted that the compiler used was Borland C++ 4.0. The second page performs as a list of each program and explains what they are used for. The zip files can be found at the bottom of the software download page 2.


Rudy Rucker's Spirograph, Rudy Rucker May 1996

Rudy Rucker's Spirograph, Rudy Rucker

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This article showcases the main aspects of how this spirograph was to be used. The spirograph is part of Rudy Rucker’s quest for the gnarl. The main page shows how to download this spirograph and how to utilize the program to its full potential.


The Emergence Of Alife, P.D. Quick May 1996

The Emergence Of Alife, P.D. Quick

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Interview with Kenneth E. Rinaldo, an artist who is on the Board of Directors of YLEM. Within this interview, many topics are covered, including artificial life, simulations, the meaning of art, spirituality, and television. The interview also goes into the personal work and life of Rinaldo, whose focus includes many of these subjects. Some of the more specific subjects include intelligence without consciousness, the combination of science and art, and Ken Rinaldo’s The Flock, an interactive A-Life sculpture.


Randomized Approximation Of The Constraint Satisfaction Problem, Hoong Chuin Lau, Osamu Watanabe Jan 1996

Randomized Approximation Of The Constraint Satisfaction Problem, Hoong Chuin Lau, Osamu Watanabe

Research Collection School Of Computing and Information Systems

We consider the Weighted Constraint Satisfaction Problem (W-CSP) which is a fundamental problem in Artificial Intelligence and a generalization of important combinatorial problems such as MAX CUT and MAX SAT. In this paper, we prove non-approximability properties of W-CSP and give improved approximations of W-CSP via randomized rounding of linear programming and semidefinite programming relaxations. Our algorithms are simple to implement and experiments show that they are run-time efficient.


Combinatorial Approaches For Hard Problems In Manpower Scheduling, Hoong Chuin Lau Jan 1996

Combinatorial Approaches For Hard Problems In Manpower Scheduling, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Manpower scheduling is concerned with the construction of a workers' schedule which meets demands while satisfying given constraints. We consider a manpower scheduling Problem, called the Change Shift Assignment Problem(CSAP). In previous work, we proved that CSAP is NP-hard and presented greedy methods to solve some restricted versions. In this paper, we present combinatorial algorithms to solve more general and realistic versions of CSAP which are unlikely solvable by greedy methods. First, we model CSAP as a fixed-charge network and show that a feasible schedule can be obtained by finding disjoint paths in the network, which can be derived from …


A Grammar-Based Technique For Genetic Search And Optimization, Clayton Matthew Johnson Jan 1996

A Grammar-Based Technique For Genetic Search And Optimization, Clayton Matthew Johnson

Dissertations, Theses, and Masters Projects

The genetic algorithm (GA) is a robust search technique which has been theoretically and empirically proven to provide efficient search for a variety of problems. Due largely to the semantic and expressive limitations of adopting a bitstring representation, however, the traditional GA has not found wide acceptance in the Artificial Intelligence community. In addition, binary chromosones can unevenly weight genetic search, reduce the effectiveness of recombination operators, make it difficult to solve problems whose solution schemata are of high order and defining length, and hinder new schema discovery in cases where chromosome-wide changes are required.;The research presented in this dissertation …


An Adaptive Fuzzy Logic Controller For Intelligent Networking And Control, Irshad Nainar Jan 1996

An Adaptive Fuzzy Logic Controller For Intelligent Networking And Control, Irshad Nainar

Theses: Doctorates and Masters

In this thesis, we present a fuzzy logic control scheme to regulate the flow of traffic approaching a set of intersections. An adaptive Fuzzy Logic Traffic Controller (FLTC) is used to adjust the green phase split of the north-south and east-west approaches of a set of traffic signals based on the actual traffic approaching the intersection. Each intersection is coordinated with its neighbouring intersections by adjusting the offset of the local intersection. The offset is adjusted by a local fuzzy logic controller loacted at each intersection. A new fuzzy control scheme, using a supervisory Fuzzy Logic Controller, is also proposed …


Brain Activation Modulated By Sentence Comprehension, Marcel Adam Just, Patricia A. Carpenter, Timothy A. Keller, William F. Eddy, Keith R. Thulborn Dec 1995

Brain Activation Modulated By Sentence Comprehension, Marcel Adam Just, Patricia A. Carpenter, Timothy A. Keller, William F. Eddy, Keith R. Thulborn

Marcel Adam Just

No abstract provided.


A Control Basis For Multilegged Walking, Manfred Huber, Willard S. Macdonald, Roderic Grupen Dec 1995

A Control Basis For Multilegged Walking, Manfred Huber, Willard S. Macdonald, Roderic Grupen

Roderic Grupen

This paper presents a distributed control approach to legged locomotion that constructs behavior on-line by activating combinations of reusable feedback control laws drawn from a control basis. Sequences of such controller activations result in flexible aperiodic step sequences based on local sensory information. Different tasks are achieved by varying the composition functions over the same basis controllers, rather than by geometric planning of leg placements or the design of new task-specific behaviors. In addition, the device-independent nature of the control basis allows its generalization not only over task domains, but also over different hardware platforms. To show the applicability of …


Design And Evaluation Of Standard Telerobotic Control Software, Kevin P. Anchor Dec 1995

Design And Evaluation Of Standard Telerobotic Control Software, Kevin P. Anchor

Theses and Dissertations

This thesis represents the first implementation of a proposed Air Force standard telerobotic control architecture. This architecture was developed by the NASA Jet Propulsion Laboratory and the National Institute of Standards and Technology under contract to the Air Force Materiel Command Robotics and Automation Center of Excellence (RACE) as the Unified Telerobotics Architecture Project (UTAP). The AFIT Robotics and Automation Applications Group (RAAG) Lab B facility computational structure was redesigned to be compliant with the UTAP architecture. This thesis shows that the UTAP specification to be implementable. However, if the underlying operating system does not support generic message passing, an …


Intelligent Control Of Vehicles: Preliminary Results On The Application Of Learning Automata Techniques To Automated Highway System, Cem Unsal, John S. Bay, Pushkin Kachroo Nov 1995

Intelligent Control Of Vehicles: Preliminary Results On The Application Of Learning Automata Techniques To Automated Highway System, Cem Unsal, John S. Bay, Pushkin Kachroo

Electrical & Computer Engineering Faculty Research

We suggest an intelligent controller for an automated vehicle to plan its own trajectory based on sensor and communication data received. Our intelligent controller is based on an artificial intelligence technique called learning stochastic automata. The automaton can learn the best possible action to avoid collisions using the data received from on-board sensors. The system has the advantage of being able to work in unmodeled stochastic environments. Simulations for the lateral control of a vehicle using this AI method provides encouraging results.


Text Independent Speaker Verification Using Binary-Pair Partitioned Neural Networks, Claude A. Norton Iii Oct 1995

Text Independent Speaker Verification Using Binary-Pair Partitioned Neural Networks, Claude A. Norton Iii

Electrical & Computer Engineering Theses & Dissertations

A method is presented for the application of binary-pair partitioned neural networks to the task of speaker verification. This technique is based on a previously developed neural network classifier for speaker identification.

The main focus of this research was the development and testing of the algorithms necessary to extend the binary-pair partitioning approach from speaker identification to speaker verification. The method is based on the development of a user profile which is obtained from discriminative data provided by the binary-pair partitioned neural networks.

Experimental results are provided which demonstrate the viability of this approach, using the TIMIT speech corpus for …


Virtual Celluoid, Switch Staffs Sep 1995

Virtual Celluoid, Switch Staffs

SWITCH

The article is an analysis of the author’s research pertaining to films relating to or containing the concept of virtual reality. The author lists several films such as Johnny Mnemnonic, Virtuosity, The Net, and Disclosure and provides a brief synopsis and review of each movie. Each film explains the concept of virtual reality through differing plots and methods such as cyberspace, progressive software, and artificial intelligence. The author also gives their own insight into and ratings of the films, explaining what they think is the most relatable in terms of overall storyline as well as how realisticly the movie portrays …


Vr Products, P.D. Quick Sep 1995

Vr Products, P.D. Quick

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The article is an analysis of the author’s experience testing several virtual reality items at Siggraph, an annual convention displaying computer machinery and interactive technology products. The author explains each device and how they work, the company behind the invention, as well as how it can help with future technological advancements. Several products are explained in more depth; the i-Glasses by Virtual I/O, Red Planet by Virtual World Entertainment Inc., Venturer S-2 by Thomson Entertainment Systems, and several more. Each item explores virtual reality in differing ways such as interactive video games, more user-friendly 3D modeling, and virtual movie theater …


Interview: Brenda Laurel, Jason Challas Jul 1995

Interview: Brenda Laurel, Jason Challas

SWITCH

This interview with Brenda Laurel, Virtual Reality (VR) author and thinker, discusses the applications and challenges of VR. Creating an emphatic experience using VR technology is possible, but the challenge lies in designing an environment that models the senses to stimulate emotions. VR enables experiences of different genders, but physiological differences between the sexes exist and are important to understand. However, technology used to create the environment and simulation of physical objects in VR is only in the developmental stage. Laurel believes in the importance of keeping the mind grounded in the physical body, in order to strengthen the appreciation …


Teaching Accommodation Task Skills: From Human Demonstration To Robot Control Via Artificial Neural Networks, Paul V. Whalen Mar 1995

Teaching Accommodation Task Skills: From Human Demonstration To Robot Control Via Artificial Neural Networks, Paul V. Whalen

Theses and Dissertations

A simple edge-mating task, performed automatically by accommodation control, was used to study the feasibility of using data collected during a human demonstration to train an artificial neural network (ANN) to control a common robot manipulator to complete similar tasks. The 2-dimensional (planar) edge-mating task which aligns a peg normal to a fiat table served as the basis for the investigation. A simple multi-layered perceptron (MLP) ANN with a single hidden layer and linear output nodes was trained using the back-propagation algorithm with momentum. The inputs to the ANN were the planar components of the contact force between the peg …


Disseminatorik. Zur Dekonstruktion Der Techno-Logik, Rudolf Kaehr Jan 1995

Disseminatorik. Zur Dekonstruktion Der Techno-Logik, Rudolf Kaehr

Rudolf Kaehr

POLYKONTEXTURALE LOGIK. Zur Konzeption, Formalisierung und Validierung. PROÖMIK UND DISSEMINATORIK Abbreviaturen transklassischen Denkens. DISKONTEXTURALITATEN: WOZU NEUE FORMEN DES DENKENS? Zur Kritik der logischen Voraussetzungen der Second Order Cybernetics und der Systemtheorie DISSEMINATORIK: ZUR LOGIK DER 'SECOND ORDER CYBERNETICS' Von den 'Laws of Form' zur Logik der Reflexionsform VOM 'SELBST' IN DER SELBSTORGANISATION Reflexionen zu den Problemen der Konzeptionalisierung und Formalisierung selbstbezüglicher Strukturbildungen SUFI´S DRAI: WOZU DISKONTEXTURALITATEN IN DER AI ? KALKÜLE FÜR SELBSTREFERENTIALITAT ODER SELBSTREFERENTIELLE KALKÜLE? SKIZZE EINER GRAPHEMATISCHEN SYSTEMTHEORIE Zur Problematik der Heterarchie verteilter Systeme im Kontext der New „second-order“ Cybernetics EINÜBUNG IN EINE ANDERE LEKTÜRE. Diagramm einer Rekonstruktion …


Book Review: Reasoning Agents In A Dynamic World: The Frame Problem. Kenneth M. Ford And Patrick J. Hayes, Eds.,, Jozsef A. Toth Jan 1995

Book Review: Reasoning Agents In A Dynamic World: The Frame Problem. Kenneth M. Ford And Patrick J. Hayes, Eds.,, Jozsef A. Toth

Jozsef A Toth Ph.D.

No abstract provided.


Comparing Traditional Statistical Models With Neural Network Models: The Case Of The Relation Of Human Performance Factors To The Outcomes Of Military Combat, William Oliver Hedgepeth Jan 1995

Comparing Traditional Statistical Models With Neural Network Models: The Case Of The Relation Of Human Performance Factors To The Outcomes Of Military Combat, William Oliver Hedgepeth

Engineering Management & Systems Engineering Theses & Dissertations

Statistics and neural networks are analytical methods used to learn about observed experience. Both the statistician and neural network researcher develop and analyze data sets, draw relevant conclusions, and validate the conclusions. They also share in the challenge of creating accurate predictions of future events with noisy data.

Both analytical methods are investigated. This is accomplished by examining the veridicality of both with real system data. The real system used in this project is a database of 400 years of historical military combat. The relationships among the variables represented in this database are recognized as being hypercomplex and nonlinear.

The …


Survey And Implementation Of Commercial Manual Controllers For A Generic Telerobotics Architecture, Thomas E. Deeter Dec 1994

Survey And Implementation Of Commercial Manual Controllers For A Generic Telerobotics Architecture, Thomas E. Deeter

Theses and Dissertations

The purpose of this study is to determine an input device for the Air Force's generic telerobotics architecture for large aircraft maintenance and repair. One area of concern is the human to machine interface, more specifically, which manual controller should be used for the specified tasks in this architecture. We mailed a survey to 68 companies in order to compile a list of possible input devices that the telerobotics architecture could use. 32 companies responded which gave me enough data to generate a list that described the physical traits of the input devices. We then divided the required tasks into …


Artificially Intelligent Air Combat Simulation Agents, Daniel E. Gisselquist Dec 1994

Artificially Intelligent Air Combat Simulation Agents, Daniel E. Gisselquist

Theses and Dissertations

The Advanced Research Projects Agency (ARPA), in an effort to improve military simulations, has proposed a standard for Distributed Interactive Simulation (DIS). This network protocol will allow dissimilar applications to communicate simulation information. In the field of air combat, this will allow pilots in remote simulators to fly in a common simulation. The success of this standard is dependent on applications being able to work within that standard, as well as a large variety of Computer Generated Forces (CGFs) to complement interactive forces. CGFs are needed to help simulate the large combat scenarios that can only occur in wartime. By …


Autonomous Robot Navigation In Unknown Terrains Using Parallel Numerical Artificial Potential Fields, John C. Schneider Dec 1994

Autonomous Robot Navigation In Unknown Terrains Using Parallel Numerical Artificial Potential Fields, John C. Schneider

Computer Science Theses & Dissertations

We present a new artificial potential field formulation for resolution complete robot navigation that unifies the purely geometric path planning problem with the lower level force control problem. Our formulation is designed for numerical computation over a massively parallel mesh of processors and is responsive to newly discovered terrain features. It does not suffer from many of the problems commonly associated with potential fields and with adequate resolution provides provably correct, collision free convergence to the goal. In addition, our formulation supports many desirable, practical features required for implementation, such as bounded actuator torques, attainable incremental constructability, realizable computation and …


A Model Of Visual Recognition Implemented Using Neural Networks, Vincent C. Phillips Jan 1994

A Model Of Visual Recognition Implemented Using Neural Networks, Vincent C. Phillips

Theses: Doctorates and Masters

The ability to recognise and classify objects in the environment is an important property of biological vision. It is highly desirable that artificial vision systems also have this ability. This thesis documents research into the use of artificial neural networks to implement a prototype model of visual object recognition. The prototype model, describing a computtional architecture, is derived from relevant physiological and psychological data, and attempts to resolve the use of structural decomposition and invariant feature detection. To validate the research a partial implementation of the model has been constructed using multiple neural networks. A linear feed-forward network performs pre-procesing …


General Methods For Analyzing Machine Learning Sample Complexity, Christoph Cornelius Michael Jan 1994

General Methods For Analyzing Machine Learning Sample Complexity, Christoph Cornelius Michael

Dissertations, Theses, and Masters Projects

During the past decade, there has been a resurgence of interest in applying mathematical methods to problems in artificial intelligence. Much work has been done in the field of machine learning, but it is not always clear how the results of this research should be applied to practical problems. Our aim is to help bridge the gap between theory and practice by addressing the question: "If we are given a machine learning algorithm, how should we go about formally analyzing it?" as opposed to the usual question: "how do we write a learning algorithm we can analyze?".;We will consider algorithms …


The Variable Elision Of Unstressed Vowels In European Portuguese: A Case Study, David James Silva Dec 1993

The Variable Elision Of Unstressed Vowels In European Portuguese: A Case Study, David James Silva

David Silva

European varieties of Portuguese exhibit a process whereby unstressed vowels, particularly schwa, optionally undergo elision: an item such as idade ‘idea’ can be realized as [ida'd] and para Maria ‘for Maria’ may surface as [prɐmɐrí'ɐ]. While previous research in the study of phonological variation of this sort has typically focused on syntactic, morphological, functional, and segmental factors as the primary linguistic conditions for accurately characterizing variable processes (Guy 1980; Poplack & Walter 1986, among many others), less work has been done investigating the role of prosodic factors in this respect. Yet if one believes (along with Nespor and Vogel 1986, …


Design And Construction Of The Aerobot Robotic Manipulator (Arm), William L. Cochran Dec 1993

Design And Construction Of The Aerobot Robotic Manipulator (Arm), William L. Cochran

Theses and Dissertations

This thesis designed, constructed, and tested a robotic arm for the Aerobot Aerial Robot. The main purpose of the ARM is to enable the Aerobot to retrieve objects for use in an annual robotics competition. Design of the ARM involved synthesizing the characteristics of simplicity, weight, strength, and size. The result was a three-degree-of-freedom manipulator that uses electric motors, cable linkages, and telescoping tubes to access a work space below the Aerobot. Forward and inverse kinematics were investigated to enable automation of the ARM. Data was collected from infrared sensors to validate the model. Manipulation of the ARM is presently …


Discovery Learning In Autonomous Agents Using Genetic Algorithms, Edward O. Gordon Dec 1993

Discovery Learning In Autonomous Agents Using Genetic Algorithms, Edward O. Gordon

Theses and Dissertations

As the new Distributed Interactive Simulation (DIS) draft standard evolves into a useful document and distributed simulations begin to emerge that implement parts of the standard, there is renewed interest in available methods to effectively control autonomous aircraft agents in such a simulated environment. This investigation examines the use of a genetics-based classifier system for agent control. These are robust learning systems that use the adaptive search mechanisms of genetic algorithms to guide the learning system in forming new concepts (decision rules) about its environment. By allowing the rule base to evolve, it adapts agent behavior to environmental changes. Addressed …