Friday 27 February 2009

Update

Since I had finished the literature review section, I had pulled together all that I had done on the dissertation so far and loosely arranged it into how it will appear in the final document. I then emailed it to my technical supervisor so that he could take a read over it so that I could have some feedback on it. I was slightly worried about the size of my literature review as it is around 6500 words alone, when the introduction, RQ, and motivation sections were added in, it came out at around 8300.

The feedback I got from the meeting was actually rather good. As it turns out my supervisor had expected this the size of my dissertation to be rather large simply because I have alot to write about. The size is going to stay the same for the time being so that I can weigh it up against the rest of the dissertation (if it turns out it is huge compared to the rest of it, then it will be cut down). 

As it turns out there were very few problems with what I had written so far, most of the things that were suggested to me was simply to reword a few senteces and then find the diagrams for the literature review section.

As for the practical side, I had a talk with my supervisor about the best way to implement the Fuzzy State Machine for the vegetation. As it stands, the FuSM can only accept one crisp input. I had been trying to use the rate at which the vegetation was increasing/decreasing as this input but with little success. We both agreed that it would probably be better if i could somehow base this input on several factors. In the end we decieded that three factors should influence the input to the FuSM: these would be the rate at which it is being eaten, the remaining herbivore population and the remaining water levels.

In order to base the input off three seperate values, a Fuzzy Inference System will be used. This would allow be to take into consideration the three input values and return a single crisp value which could then be used as input for the FuSM.

One other thing that did come out of this meeting was that allow the FuSM seems like a good idea, it may be overkill. By overkill I mean, it may be trying to be too realistic with out actually making much of a difference as it may turn out that its implemtation does not actually have a visible effect on the system. Therefore, it was decieded that it will only be applied to a handfull of vegetation as a test, if it goes well and does indeed make a difference, then it will be applied to all the vegetation.

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