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Publications - Dr. S Ronald

Dissertation

Genetic Algorithms and Permutation-Encoded Problems. Diversity Preservation and a Study of Multimodality. 1996. The University Of South Australia. Department of Computer and Information Science.

Genetic algorithms (GAs) are biologically-inspired computational models. GAs are used to find one or more optimal or near-optimal solutions to a stated optimization problem. Dissertation relates GAs to order-based problems and explores two main areas. A number of new diversity-loss prevention techniques are proposed. These techniques can be applied to a broad range GA algorithms and can significantly improve the computational efficiency and quality of final solutions obtained. An investigation is made into the area of locating a number of different and near-optimal solutions using a GA. A new multiple-solution method is proposed. Analysis and comparative studies show the technique to be useful and highly effective in order-based domains. Although order-based problems have been the focus of this dissertation, most of the techniques are general and can be applied to a variety of GA computational models.

Journals

S Ronald "Preventing Diversity Loss in a Routing Genetic Algorithm with Hash Tagging", Complexity International, Volume 2, ISSN 1320-0683. 1995.

Chapters

S Ronald "Genetic Algorithms and Scheduling Problems" The Practical Handbook of Genetic Algorithms, Volume 1, Applications, Ed. Lance Chambers, CRC Press, Boca Raton, Florida, 1995, pg 367-430.

S Ronald "Robust Encodings", Evolutionary Algorithms in Engineering, Ed. D Dasgupta and Z Michalewicz, Springer Verlag, 1996. Invited Chapter.

Conference Papers

S Ronald, S Kirkby and P Eklund, "Multi-chromosome Mixed Encodings for Heterogeneous Problems", 1997 IEEE International Conference on Evolutionary Computation.

S Ronald "Robust Encodings in Genetic Algorithms", 1997 IEEE International Conference on Evolutionary Computation. Submitted. S Ronald "The Multimodal Traveling Salesperson Problem", 1997 IEEE International Conference on Evolutionary Computation.

S Ronald "Distance Functions for Order-Based Encodings", 1997 IEEE International Conference on Evolutionary Computation.

D Seeley and S Ronald "The Emergence of Connectivity and Fractal Time in the Evolution of Random Digraphs", Complex 92, Canberra, Proceedings in Complex Systems from Biology to Computation, Ed D Green and T Bossomaier. IOS Press, Amsterdam, 1993, pg 12-23. Refereed.

S Ronald "The Application of Genetic Algorithms with Meta-Learning Capabilities to Jobs Shop Scheduling Problems", Proceedings in Australian Society of Operations Research. The 12th National Conference, Adelaide, 7-9 July 1993, pg 546 - 558.

S Ronald "Preventing Diversity Loss in a Routing Genetic Algorithm with Hash Tagging", Complex 94, Rockhampton, Proceedings in Complex Systems: Mechanism of Adaptation, Ed. R Stonier and Xing Huo Yu, IOS Press, Amsterdam, 1994, pg 133-140.

S Ronald, J Asenstorfer, M Vincent "Representational Redundancy in Evolutionary Algorithms" , Proceedings of the 1995 IEEE International Conference on Evolutionary Computing, Volume 2, pg 631-637.

S Ronald "Finding Multiple Solutions with an Evolutionary Algorithm", Proceedings of the 1995 IEEE International Conference on Evolutionary Computing, Volume 2, pg 641-647.

S Ronald, J Asenstorfer, M Vincent "Genetic algorithm test functions; designing a multi-modal problem in the permutation domain", The Eight Australian Joint Conference on Artificial Intelligence, Ed. Xin Yao, World Scientific, 1995, pg 331-338.

S Ronald "The Application of Genetic Algorithms with Meta-Learning Capabilities to Jobs Shop Scheduling Problems", Australian Society of Operations Research Bulletin 13, Volume 3, 1994, pg 8-16.

White Papers

S Ronald "The Scientific Foundations for RocketReader". 2005. PDF Download

Patents

Patent: "Web Map Tool" In the Name: Maxamine International Pty Ltd
Authors: Ronald, Simon Paul; Kirkby, Stephen Dennis; Richard, Webber; Richard John
Patent Application No: 10/148, 495
Notice of Publication of Application issued on: 27 February 2003 (Publication No. US-2003-0038836-A1)

The present invention provides a method of mapping at least a part of one or more web sites having web objects and web links. Web objects and links are mapped as nodes and edges respectively in one or more web maps, each object being mapped to at least one corresponding node. The method allows a user to display selected items in a web map such that those items are distinguished from other items in the web map and are displayed in a clarified form. The preset invention enables a web map to be uncluttered. In one embodiment, all "similar" nodes are displayed on the same web map, wherein the similarity of any pair of nodes is a function of a directory distance and/or a link distance. The directory distance is a measure of separation between a pair of web objects corresponding to the pair of the nodes in a directory structure of the web site. A link distance is a measure of separation between a pair of web objects corresponding to the pair of nodes in a linking structure of the web site.

Patent: "Internet Tool"
In the Name: Maxamine International Pty Ltd
Authors: Ronald, Simon Paul; Kirkby, Stephen Dennis; Richard, John Webber
Patent Application No: 10/149, 629
Notice of Publication of Application issued on: 27 February 2003 (Publication No. US-2003-0041143-A1)

The present invention provides a method and a system for providing profile information about at least one internet user. The profile information is provided to users of the internet and may also be provided to a third party. The profile information may be used by a user to view their own web surfing habits and may allow the surfing habits of particular demographic groups of a site or set of web sites to be examined. For instance, parents may use the profile information to monitor the internet usage of children. Profile information provided to any party is presented as summarized demographic information about a selection of users rather than personal details about any single user. However, a user may be given access to their own personal details. The present invention also provides a display system including means for graphically displaying a navigation history of an internet user. The display system may construct a visual display of the navigation history using history data provided by a web browser.

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