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Get AI 2003: Advances in Artificial Intelligence: 16th PDF

By Kotagiri Ramamohanarao, James Bailey (auth.), Tamás (Tom) Domonkos Gedeon, Lance Chun Che Fung (eds.)

ISBN-10: 3540206469

ISBN-13: 9783540206460

ISBN-10: 3540245812

ISBN-13: 9783540245810

Consider the matter of a robotic (algorithm, studying mechanism) relocating alongside the genuine line trying to find a selected aspect ? . to aid the me- anism, we think that it may possibly speak with an atmosphere (“Oracle”) which courses it with information about the path during which it's going to cross. If the surroundings is deterministic the matter is the “Deterministic element - cation challenge” which has been studied particularly completely [1]. In its pioneering model [1] the matter was once offered within the atmosphere that the surroundings may possibly cost the robotic a value which used to be proportional to the gap it was once from the purpose hunted for. The query of getting a number of speaking robots find some extent at the line has additionally been studied [1, 2]. within the stochastic model of this challenge, we reflect on the situation whilst the training mechanism makes an attempt to find some degree in an period with stochastic (i. e. , potentially faulty) rather than deterministic responses from the surroundings. hence whilst it may quite be relocating to the “right” it can be instructed to maneuver to the “left” and vice versa. except the matter being of significance in its personal correct, the stoch- tic pointlocationproblemalsohas potentialapplications insolvingoptimization difficulties. Inmanyoptimizationsolutions–forexampleinimageprocessing,p- tern popularity and neural computing [5, nine, eleven, 12, 14, sixteen, 19], the set of rules worksits wayfromits currentsolutionto the optimalsolutionbasedoninfor- tion that it currentlyhas. A crucialquestionis oneof deciding upon the parameter whichtheoptimizationalgorithmshoulduse.

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The action represent the probabilities of selecting action at step Initially, for 1. 3. The feedback inputs from the environment to each automaton It is important to recognize a subtle, but crucial point in the construction of the learning automata in CPL–ATS. From the automaton’s point of view, the two actions are those of selecting either the left or the right half from On How to Learn from a Stochastic Teacher 29 its partition. However, from the environment’s point of view, the automaton presents a current guess for the true value of and it gives a feedback based on the relative position (or direction) of the guessed value with respect to Thus there is a need to map the intervals to a point value and the feedback on the point value to the feedback on the choice of the intervals.

Being somewhat more expensive to execute, line detection is used sparingly. While our method of line detection was the most accurate to appear in the 2003 competition, the German Team developed a method that was faster and therefore could be used more frequently. Arguably, they made the better trade-off between speed and accuracy. Figure 3 shows a snapshot of the world model being maintained by one of the blue robots during a game. The ellipses around the objects indicate the size of the error in and while the shaded sector indicates the error on heading of the robot.

Although several experiments were conducted using various and parameter values, we report for brevity sake, only one set of results, namely, those for For this value, several independent replications with different random number streams were performed to minimize the variance of the reported results. The reported results are averaged over the replications. 9123 of to the first three decimal places for all values of shown in the table. 8. This figure plots the running estimate at the end of each epoch.

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AI 2003: Advances in Artificial Intelligence: 16th Australian Conference on AI, Perth, Australia, December 3-5, 2003. Proceedings by Kotagiri Ramamohanarao, James Bailey (auth.), Tamás (Tom) Domonkos Gedeon, Lance Chun Che Fung (eds.)


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