Literacy Project/2012-05-02
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Notes
Angela C, David N, David L, Rachel, Richard, Sam
- Timestamps
- Timestamp problems: 4 sets of stamps; (s, ms) and (1970, 2012). Still unclear what's causing the reset; Richard leaves on the 10th.
- Process of gathering data
RS - I would walk each directory. while copying that, it takes forever; 3-4G. I rsynced the whole thing, so the archive is duplicated of what's on raw.
- No processing yet on week 6; just copied zip files into the raw directory.
- Data variance
DL - When I ran a filter over timestamps... the results seemed odd for week 6. Only 5% had bad timestamps.
- And week 4 had an order of magnitude fewer total records than the previous week
Rachel - b/t week 5 and 6, we had a great increase (65%) of photos taken.
- Blank camera files
DL - still the same % of black files (3/4); it still does this when the screen is covered or it's dark out.
RS - fewer pictures would cut the total data size in half, would make other crunching faster.
DN - I could cut the rate in half.
TinkrBook data analysis
Some data summaries:
