This week has been very busy. The results section of my paper was due so the majority of my time was spent typing and editing and re-editing that. There were also some final decisions made about future steps. Instead of the NA cost strategy we've been following, we've decided to employ a delete strategy. In this strategy (which only works because there are only missing values at the end of the sequences) we will delete all missing values and be left with sequences of different lengths. Then these mismatching sequences will be normalized and compared. This method gives faster and more accurate results than simply picking a substitution cost. Other than that change in beginning procedure, the rest of our methods have not changed. In addition to this decision, we have also decided on an ending age of 39 for our sequences. The new variables are finally fixed and we have a final dataset. We are ready to receive our final clustering results and have ensured they will be accurate wi...
In this week much effort was put into being able to compare average window throughput and degree of change. One challenge to overcome was how to scale the throughput data. To best understand the distribution of the average throughput's for every window, we made a histogram using the unscaled throughputs. It was evident that the magnitudes of the very high throughput dwarfed the small throughput by at least 10^2. Two methods were considered to scale the throughput; apply the reciprocal operation, (^-1), or apply a logarithmic function. The logarithmic function most evenly represents small throughput and high throughput. After choosing our scaling method we graphed the log(throughput) with the degree of change over time. From these figures, it seems there is no discernible relationship between degree of change and log(throughput). This was a big step back as Alina and I had to rethink an approach to this project.
On this weekend I spent a small portion of Saturday in San Francisco taking my first up-close look at the Golden Gate Bridge. Alex and I, without Alina this time, began by taking a very long, unplanned detour South toward Fremont. I didn't realize we had gotten on a Bart sub that required a transfer to get to San Francisco. I was too busy looking for things to do in San Francisco to realize we weren't even hitting the right stations. Luckily, Alex managed to see that we weren't where we thought we were going and correctly directed us to get off and start heading back towards the transfer station. After the delay and upon waiting for a bus to take us to the bridge, we stopped by a nearby bakery/ sandwich shop for lunch. The bus took us to the other side of the bridge so we could walk back over. All I can really say was that it was big, though it wasn't as long as I thought it would be. What amazes me is that it was originally constructed out of beams of wood. ...
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