Moderate risk alert at midnight, awake at the desk
A side-project safety app generated a moderate-severity risk alert for me at 00:28 local time. I was at my desk, awake, trading messages with two…
Read →TOPIC 0xE2·ANOMALY-DETECTION
Category
anomaly-detection
4 posts tagged anomaly-detection.
Per-day-of-week sleep windows for a safety app
A safety app I run was firing "missed check-in" pre-alerts at 7am on Saturdays. I don't get up at 7am on Saturdays. The fix was moving from one global…
Read →Replacing a binary threshold cliff with a one-hour ramp
The inactivity-monitor cron on a side-project safety app was paging me at 7:01 AM, every morning, with "you haven't checked in." I was asleep. The cause…
Read →Why the sleep-window learner kept collapsing to the wrong four hours
The v1 sleep-window learner for a side-project safety app produced a sleep window of 01:00–05:00 for me. My actual sleep is more like 23:00–07:00. The…
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