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Weekly report
28
Jun
2012
I saw Murray Jorgensen about the Veitch paper. He suggested that the Algorithm could not be sped up, and that the selection of alpha values may be unduly strict. He also said that it would be useful to compare the distributions of LB valencies collected under the regimes of the first paper and the the second paper on the topic of stopping probabilities i.e. the original Scamper vs. the Veitch 99% MDA analysis modes. I summarised this comparison for using the existing data, with a long time interval, however I will do it again once the new data is collected.
A further analysis of port bits was carried out using Tony's method. A further modification was made because significance was being attributed in the situation where all signs for 0.5-meanbit were the same. If all signs were the same the value for these accumulated differences divided by the number of successors was zeroed. There may be a gentler approach to this.
As the new scamper driver for collecting UDP and TCP sport data under original scamper MDA conditions is running, I have avoided running the after-run database analysis on yoyo, as this uses as much CPU as it can, and also floods the database with requests. I did not want to upset the scamper run. As yoyo data is not really protected against a disk crash I would prefer to move a copy of the database elsewhere, as well. This analysis will produce UDP TCP comparison data with confirmation of low values through carrying out high confidence repeats when necessary during MDA data collection.
A program was written to simulate MDA analysis and collect confidence information relating to k and n, the number of successors and the number of packets to send given k found. It does not run as slow as the Veitch approach and gives slightly different numbers, but may be more well defined and believable in terms of the path length. It uses the simple case of when all the nodes have the same number of successors. The n values for high confidence are a bit wobbly, as I expected they might be, requiring that the number of cycles be increased in further runs involving these high values.
More editing was carried out on the document on the type of result that should go into the paper.
My progress report is due in a month.