linkedin / linkedin/luminol

0.0 Anomaly Score for larger dataSet-bitmap_detector

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Python
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Description

Dear Team,
I am using luminol for the larger dataset which has almost 25k rows and the issue is by using algorithm as "bitmap_detector" ,the anomaly score for the initial 200 values and the last 200 values remains as "0.0" even if there is some difference within the input values .
If we try to pass only those 200 values we receive some anomaly scores. please respond asap.

Thanks,
Prabhat

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Research direction

Start by reproducing the bitmap_detector behavior described for a dataset of about 25,000 rows, comparing anomaly scores for the initial and final 200 values with scores from those windows in isolation. The issue is done when the cause of the zero scores is identified and the detector produces appropriate scores for differences at the dataset boundaries.

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Assessment

Tech stack
python
Domain
machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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