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0923 Question

1. Deliver Time Model

Deliver time components

  • Preparation time: use the historical data
  • Pick-up wait time: use the historical data
  • Travel time: integration with map services
  • Drop-off time: time to park, find location, use the historical data

Machine learning:

  • Use historical data to train a model
    • Regression model (linear, decision tree etc)

2. Grape Color

Due to the presence or absence of certain natural pigments

  • Anthocyanin(花青素), responsible for the red, purple color
  • Phenolic compounds(酚类化合物), red grape has higher, contributing to the stronger and more robust flavor
  • Evolutionary reason: attract different types of pollinator(授粉者)