Publications of Dr Harvey A. Cohen

Published prior to 1989

excluding papers on Theoretical Physics

A Listing by Topic
Brief bio for Dr Harvey A Cohen up to 1989

Attended the Sydney (Boys) High School. At the University of Sydney he completed two years of electrical engineering before transfering to the Science Faculty, completing an Honours Degree with major in Physics. Completed a PhD at the ANU in computational methods in QED quantum electrodynamics. Following a post-doc at the University of Adelaide he became a senior lecturer at La Trobe University originally in Mathematics and later in Computer Science. His experiences of teaching undergraduate mechanics lead to “loud-thinking” student efforts in qualitative physics, which research lead him to an initial appointment within the Artificial Intelligence Laboratory, at MIT, Cambridge Mass, where he worked with Seymour Papert. On return to La Trobe University he conducted the educational robotics project OZNAKI inspired by LOGO. With R.S. Francis developed microprocessor software development scheme highlighted in IEEE Computerin 1979. He then developed an early Talking Communicator for severely disabled non-speech children.

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Algorithm Directed Hardware [2]
J. Bombardieri and H.A. Cohen, The IIR Transfer Function H(z) from a General Laplace H(s): Improved Procedures for Computing Coefficients, Proceedings of the IEEE Systems, Man and Cybernetics Conference, Beijing and Shenyang, China, August 1988. pp 587-590.
Harvey A. Cohen, Symmetry Considerations Applied to Hardware Convolvers for Image Filtering, Proceedings of the 1988 IEEE Conference of the IEEE Systems, Man and Cybernetics Conference, Beijing and Shenyang, China, August 1988 pp 1128-1131.

Computer Vision [4]
D. Suter and H.A. Cohen, Incorporating Knowledge via Regularization Theory: Applications in Vision and Image Processing, Proceedings of the Australian Joint Artificial Intelligence Conference AI"88 pp 389-404.
D. Suter and H. A. Cohen Modelling of Texture Perception, Proceedings Int. Conf. Modelling and Simulation, pp. 430-435, Melbourne, Australia, 14,15,16 Oct. 1987.
J. Bombardieri and H.A. Cohen, Symmetry of Multidimensional Filters: Implications for Coefficients for Software and Hardware Design, Proceedings of International Conference on Modelling and Simulation Melbourne October 1987 pp 442-447
Harvey A. Cohen and David Suter, Towards Active Vision Sensors Proceedings, Robots in Australia's Future Conference, Sponsored by the Australian Robot Society, Perth, May 1986, Vol 2 pp 17-20.

Fractals go out to work[4]
D. Suter and H. A. Cohen Fractals: representations for visual recognition, and for graphics, Proceedings of AUSGRAPH 87 May 1987.

Applied Image Processing and Expert Systems [1]
Harvey A. Cohen, Automated Interpretation of Remote Sensing Images: Intelligent Analysis of Hyperspectral Data, Proceedings of Fourth Australasian Remote Sensing Conference, Adelaide Sept 1987 Vol I pp 626-630.

Image Processing [2]
H.A. Cohen, Development of Speech and Vision Laboratory at La Trobe, in T. Cole (Editor) Abstracts Volume for A.C.R.B. and R.R.B. sponsored Conference, Software and Hardware Systems for the Transformation, Transmission, Storage and Display of Image information, Feb 20/21, 1985, EE Dept, University of Sydney.
H.A. Cohen, The Image Processing Workstation as a Laboratory Tool, Proceedings Conference on Engineering and the Physical Sciences in Medicine, EPSM 85 (Abstract)

Speech Synthesis and Recognition [3]
H.A. Cohen, THE EXPERT LISTENER: Computer recognition of human speech, in Proceedings of the First Australian Artificial Intelligence Congress, Melbourne November 1986, Section E, pp 1-9.
H.A. Cohen, Human Speech and Computer Speech, Conference Proceedings, Second Australian Applied Physics Conference, RMIT, December 1981, Vol 1, pp 217-20.
H.A. Cohen, Speech Output for Microprocessor Based Devices, IREECON 81 International Conference, (Melbourne August 1981), Proceedings, pp 228-231.

LOGO-84 [2]
H.A. Cohen, Introducing LOGO-84: An Australian LOGO, in J.Hughes (Editor), Computers and Education: Dreams and Reality (Proceedings of the Second Australian Computer Education Conference, Sydney, 1984), Computer Education Group of N.S.W., pp 73-77.
H.A. Cohen, LOGO-84: An Australian LOGO, in A.D. Salvas (Editor), in Computing and Education - 1984 and Beyond, (Proceedings of the Sixth Annual Conference of the C.E.G.V.), Computer Education Group of Victoria, Melbourne, 1984 pp 314-317.

Communicator for the Severely Disabled [6]
H.A. Cohen, Interfacing the Severely Handicapped to the Computer and the Computer to the Severely Handicapped: Design Principles of the La Trobe Talking Communicator, Conference Proceedings, TAD Computer Interface Seminar, Technical Aid to the Disabled, 1982.
H.A. Cohen, Computer Communication, Access, and Programming by Severely Handicapped Children, in J.R. O"Leary and J.R. O'Reagan, Editors, Proceedings of the Fifth Annual Conference on Rehabilitation Engineering, Rehabilitation Engineering Society of North America (RESNA), Bethesda, Maryland, 1982, pp 41-45.
H.A. Cohen, The La Trobe Talking Communicator for the Severely Disabled Speechless, in A.H. Sale and G. Hawthorne, Editors, Proceedings of the Ninth Australian Computer Conference, Hobart, Australian Computer Society, Hobart, Vol 1 pp 266-275 (1982) BibTeX
H.A. Cohen and J. Monro, Computer Communication, Access and Programming by Severely Handicapped Non-Speech Children, in R. Welch, Editor, Ninth Australian Computer Conference Schools Symposium 1982, Australian Computer Society, Hobart, pp 237-253 (1982) BibTeX
H.A. Cohen, The development of a TALKING COMMUNICATOR for the disabled Speechless, Conference Digest, 21st Conference on Physical Science and Engineering in Medicine and Biology, [organised by the Australian College of Physical Scientists in Medicine and other learned societies], School of Medicine, University of Melbourne, August 1981, pp K7.
H.A. Cohen, Communication With By and To Computers: The Potential for Special Education, Conference Digest, Sixth National Conference, Australian Association of Special Education, Mannix College, Monash University, August 1981, pp 7-8. (Abstract only)

Microprocessor Software Development [5]
The OZNAKI Project was conceived in 1975, as a more affordable version of the MIT LOGO developed by MITs Seymour Papert and BBN Walter Feurzeig, but implemented only on a Decus mainframe.\. In 1975 prototype systems were implemented by HAC at La Trobe using ALGOL combined with machine code on the La Trobe University PDP-10. In addition, the very first southern hemisphere "Turtle" robot was constructed and was directed by these proto-systems. In December 1975 HAC was invited to attend a Loud Thinking conference at MIT and enroute saw mock-ups of the Poly-88, an 8080 based microcomputer with video output, which was to become the primary microcomputer for OZNAKI.
The Intel 8080 ("eighty-eighty") was the second 8-bit microprocessor designed and manufactured by Intel and was released in April 1974, and was very shortly followed by 8-bit microprocesors from Motorola and other manufacturers. In the seventies it was uncertain as to which processor (and its ultimate 16-bit successors), would be dominant. At the same time there was essentially no developmental software. At hand at La Trobe University was a DEC-10 PDP mainframe computer, which boasted a macro-assembler. Harvey Cohen and Rhys Francis devised a scheme in which -- with add-ons -- the DEC-10 macro assembler operated as macro cross assembler for a specified microprocessor. And further -- through the use of code-fragment MACROS processor portability could be achieved: the same higher level code (in HELP) would produce functional machine code for any supported microprocessor.
What we achieved was recognised by Jeff Raskin* -- then acting as a Technical Editor for IEEE - just before he went off to Apple -- where he was responsible for conceiving and developing the Macintosh. So a paper [1] below was conceived and published in IEEE Computer, and then elected and republished, [2] below in a very large IEEE reprint volume, Microprocessors and Microcomputers, selected Included in Microprocessors and Microcomputers are papers by the architects of the soon to be released 16-bit processors, the Intel 8086, the Motorola 6800, and an article by Alan Kay and Adele Goldberg, which describes the futuristic system they had developed at XEROX called SMALLTALK --whose features of mouse and iconic display were freely copied by both Apple and Microsoft.
* Jeff Raskin announced to HAC that he was going off to work for Apple -- where he conceived and developed the Macintosh until he was peremptory sacked by Steve Jobs.
H.A. Cohen and R.S. Francis, Macro-Assemblers and Macro-Based Languages in Microprocessor Software Development, IEEE Computer, Vol 12, No 2, Feb 1979, pp 53-64
H.A. Cohen and R.S. Francis, Macro-Assemblers and Macro-Based Languages in Micro-processor Software Development, in P. Isaacson (Editor), Microprocessors and Microcomputers, IEEE Computer Society, New York, 1979, 2nd Revised Edition, pp 199-210.
3 H.A. Cohen, Microprocessor Software Development Using Macroprocessors, in Proceedings of 8th Conference of the Australian Computer Society, Canberra, August 1978, Vol. 1, pp 148-164.
H.A. Cohen and R. S. Francis, HELP for Microprocessor Software Development, IEEE Compcon Fall Conference Digest, Washington, September 1977, pp 196-200.
Harvey A. Cohen and Rhys S. Francis, A Design Strategy for Micoprocessor Software Institute Radio and Electrical Engineers IREECON, Conference Digest, Melbourne August 1977, pp 119-121.

On Introducing Computer Concepts in Schools [2]
H.A. Cohen, Making Algebra Concrete using a Microcomputer: An Algebraic Programming Language for the Control of Robots, in P. Williamson (Editor), Learn to Love Mathematics, Mathematics Association of Victoria, Melbourne, 1980, pp 336-350.
H.A. Cohen, Modelling Boolean Algebra with Tinkertoy or Meccano: How to Construct a NIM Playing Machine, in P.Williamson (Editor), Learn to Love Mathematics, Mathematics Association of Victoria, Melbourne, 1980, pp 253-265.
Colour images relating to this paper and further construction details are here

Microcomputer Graphics [2]
H.A. Cohen, ESCHER: A Block-Oriented Graphics Language for Microcomputers, Proceedings of the National Microcomputer Conference on Personal Computing for the Eighties, ACS SIG, Canberra, 1980, pp 14.1-14.8
H.A. Cohen, Graphics on the Poly-88, Dr Dobb's Journal of Computer Calisthenics and Orthodontia, Published by the People"s Computer Company, Menlo Park, California, Vol. 2, No. 3, 1977, pp 12-13.

Anonymous, Anti-maths syndrome under attack Published in the La Trobe University Record, Vol 9 No 7, December 1975. Summary of of objectives of the OZNAKI Project, written up by (journalist) Ernest Raetz from material supplied by Dr Harvey Cohen.
H.A. Cohen, Expanding the Child's Concept of Number, Space and Operation, in M. Poole (Editor), From Creativity to Curriculum, Allen and Unwin, Sydney, 1980, pp 147-162. : BibTeX
H.A. Cohen, OZNAKI and BEYOND, in D. Harris (Editor), Proceedings of National Education Computing Conference, NECC "79 The University of Iowa, Iowa, June 1979, pp 170-178.
H.A. Cohen and D. G. Green, Evaluation of the Cognitive Goals of OZNAKI: Enhancement of Spatial Projective Abilities, in A.M. Wildberger and R. G. Montanelli, (Editors), "ACM Topics in Instructional Computing," ACM Special Interest Group Computers in Education, SIGCUE, New York, 1978, pp 69-90. Abstract
The OZNAKI Project applies cognitive goals to the design of TINY robotics languages and sequences of lessons in which students program simple robots and TV "block" graphics. One such lesson sequence, the "Projection Module", has been designed to emphasise "projection", a fundamental spatial ability. The course was evaluated in a study involving students aged 8 to 13 years. Experimental and control groups consisted of students matched by age, class,and spatial ability (measured by pre-test), with no previous OZNAKI experience. While the experimental group participated in OZNAKI lessons the control group had only their usual maths lessons. The pre- and post-tests took the form of individual Piagetian interviews with the primary school students, and multi-choice questionnaires ( primarily based on Porteus Maze tests ) with the junior high school students, thus giving two distinct studies. Significant enhancement of spatial abilities was found for the experimental group in both the primary and the secondary studies.   Note: Of especial interest is that remarkable improvement in solving tasks closely related to those used in the Porteus "nonverbal test of intelligence" indicative that what is measured using Porteus methodology is not a measure of intrinsic capacity.
H.A. Cohen, OZNAKI: A New Medium for Mathematicians, in D. Williams (Editor), Learning and Applying Mathematics , Published by the Australian Association of Mathematics Teachers, 1978, pp 274-83.
H.A. Cohen, The OZNAKI Life: Introducing the NAKI Concept for TV Graphics, Dr Dobb's Journal of Computer Calisthenics and Orthodontia, Published by People"s Computer Company, Menlo Park, California, Vol. 3, No. 4, (1978) pp 10-11.
H.A. Cohen, Micro-Computers for Mini-Mathematicians, in L. Murray (Editor), Meaningful Mathematics, Published by the Mathematics Association of Victoria, 1977, pp 391-7.
H.A. Cohen and D. G. Green, Teaching Mathematics with OZ-Graphics, Peoples Computers, 1977, vol 6 (3), pp 52-58.
H.A. Cohen, OZNAKI, in Set Two, published by Mathematics Association of Victoria, Melbourne, 1976, pp 36-39.
H.A. Cohen, The OZNAKI Robotics Language OZ, Proceedings of the 7th Australian Computer Conference, Vol. 1, 1976, pp 128-143.
For page 1 of this paper Click here
For page 16 of this paper Click here

Problem Solving and Heuristics [3]
H.A. Cohen, The Art of Snaring Dragons, M.I.T. Artificial Intelligence Laboratory Memo Number 338, May 1975. Dragons are formidable problems. challenging, and yet solvable using little or even no algebra or calculus. Dragons are also distinguished by the fact that (unlike other physics problems seen by the tyro as "difficult") both the tyro - and the experienced physicist, are confident with their - so-different - predictions. Thus such Dragons are akin to the Conservation Puzzles of Piaget, where both the four-year old pre-conserver, and the six year conserver are equally confident with their (differing!) conclusions. In this paper, written when the writer was part of the LOGO Group at the MIT Artificial Intelligence Laboratory, an explanation is given in terms of the Frames concept of Marvin Minsky.
H.A. Cohen, with illustrations by Jeni Rawson, A Dragon Hunter"s Box, Hanging Lake Books, Melbourne, 1974. { A componendium of qualitative problems in dynamics }
H.A. Cohen, Mathematical Dragon Hunting on the La Trobe Campus, Australian Vice-Chancellor"s Committee (AVCC) Educational Newsletter, 3/73, January 1974. To stimulate the intellectual growth of students a new style of student exercise, the Dragon, has been devised and utilised in a course in applied mathematics at La Trobe University.

History of Personal Computing
Harvey A. Cohen, A Potted History of Personal Computing included in Harvey A. Cohen, Micros Lab Reference Manual 1986 Edition, La Trobe University, Melbourne, Australia, 1986. Downloadable
H.A. Cohen, The MicroBee Story: How the first Australian PC - state of the art in 1982 when first marketed, achieved world-wide sales yet the manufacturer went out of business within eight years with the emergence of the Apple Macintosh and Microsoft Windows. Online web document.

Harvey A. Cohen, The Scientific Case for the Conservation of the Byaduk Lava Caves and Environs. Presented at the Tenth Biennial Conference of the Australian Spelological Federation, Sydney, December 1972. Included with other material in submissions leading to the protection of the Byaduk caves. Also published in Nargun, the magazine of the Victorian speleological Society, in 1972.

Publications Since 89 By Year
This is a collection of papers in image engineering and visual information systems, including image processing generally including numberplate recognition and speed-up issues, image restoration, (IFS and) fractal image coding, issues in image retrieval using thumbnails, and parallel processing techniques, together with some papers devoted to the design of image codecs, to aspects of satellite systems and to the education of engineers.
Publications Prior to 89 By Topic excluding Physics Papers
These papers are grouped by topic. Topic titles include qualitative physics, mathematics education, OZNAKI - a pioneering educational robotics project, the La Trobe Talking Communicator ( developed for severely disable non-speech students ).
Papers on Physics and Geophysics
This directory of papers in theoretical particle physics and quantum electrodynamics includes the abstracts for each paper.
Primers on VIS and Image Engineering
VIS = Visual Information Systems.Topics: Edges. Interesting points. Image restoration. Image access via thumbnails. Texture analysis, identification, segmentation. Fuzzy image processing. Using fractals to encode images. The perceptron images.
Dragons are formidable problems in qualitative physics, challenging, and yet solvable using little or even no algebra or calculus.
e.g. Which direction does the yo-yo roll?
What if the table were greased?
Personal Home Page of Dr Harvey A. Cohen of Melbourne Australia