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November 27, 2006, at 02:15 PM by 136.159.7.242 -
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Hi, Saul. Attached below is the figure I used in my CSCW Annotations talk that you said you'd like to get a copy of.

I've also attached another plot using the same method, except the plot focuses on annotators instead of documents. Here's the explanation for both files:

pianoRoll_documents: Each row is a document, and each dot represents a day on which at least one annotation was made to that document. Documents are sorted in order of date on which the document was first annotated. A few interesting things can be derived from this plot. First, you can see the rate at which new documents are being annotated by looking at the slope of the left-most points. Interestingly, this slope also matches up fairly nicely to significant deadlines in this product group's schedule. Second, you can see gaps in the plot for holidays (July 4th, late November, late December). Third, as mentioned in my presentation, documents are annotated over a very long period of time, sometimes as long as several months.

pianoRoll_annotators: same idea as the previous plot, except this time each row represents a single person. The plot is sorted such that the people who made the most annotations are at the top and the people who made the fewest annotations are at the bottom. We constructed this plot to see if the different classes of annotators used the system at different points in time. In particular, we were trying to see if the one-time users all tried the system early in the process when it was first announced and then never used it again. From this plot, it doesn't look that way.

Both plots were done in excel. Marc Smith should get the credit for the idea of displaying the data in this way.

Let me know if you have any other questions. Enjoy, JJ