ds/dx - a data science & ml engineering blog

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2020

Estimating travel times using geospatial feature engineering and tree based models
tree travel-times geospatial haversine-distance azimuth coordinates taxi bigquery gradientboosting lightgbm xgboost bigquery seaborn numpy pyproj
Using BigQuery on hundreds of millions of events: deduplicate, analyse, visualize, find connected intervals and aggregate to timeseries
bigquery timeseries deduplication bigdata sql island gaps intervals grid events