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Spatio-temporal clustering ?

Started this discussion. Last reply by Stéphane Jun 27. 2 Replies

 Dear All,I'm working with a dataset with latitude, longitude and date-time, and 5 million points per day.And I'm coding in Python, with a clickhouse database to store the source data. Is there a way…Continue

Tags: spatio-temporal, clustering

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Stéphane replied to Stéphane's discussion Spatio-temporal clustering ?
"Hi Vincent, Thanks for the proposition. I've tried yesterday the binning to reduce the volume : regroup geographically close points and bin time in 15 min interval. That allow me to reduce the dataset from five millions per day to around eighty…"
Jun 27
Vincent Granville replied to Stéphane's discussion Spatio-temporal clustering ?
"With three dimensions, you could try to bin the features and perform clustering on the grid using density estimation techniques. It requires some pre-processing, but it is then O(1) to classify a new point,…"
Jun 27
Stéphane posted a discussion

Spatio-temporal clustering ?

 Dear All,I'm working with a dataset with latitude, longitude and date-time, and 5 million points per day.And I'm coding in Python, with a clickhouse database to store the source data. Is there a way to do a spatio-temporal clustering that includes the 3 features?So far I have scaled/normalized the 3 features and use MiniBatchKMeans (current solution used), or an Euclidian distance, but I I'm losing the notion of the physical distance between points.DBSCAN or HDBSCAN with Havresine is accepting…See More
Jun 27
Stéphane liked Bill Schmarzo's blog post The 3 Phases of Digital Transformation
Nov 16, 2017

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Cathay Pacific
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