/template-scala-parallel-similarproduct

PredictionIO Similar Product Engine Template (Scala-based parallelized engine)

Primary LanguageScala

Similar Product Template

Documentation

Please refer to http://docs.prediction.io/templates/similarproduct/quickstart/

Versions

v0.3.2

  • Fix CooccurrenceAlgorithm with unknown item ids

v0.3.1

  • Add CooccurrenceAlgorithm. To use this algorithm, override engine.json by engine-cooccurrence.json, or specify --variant engine-cooccurrence.json parameter for both $pio train and $pio deploy

v0.3.0

  • update for PredictionIO 0.9.2, including:

    • use new PEventStore API
    • use appName in DataSource parameter

v0.2.0

  • update build.sbt and template.json for PredictionIO 0.9.2

v0.1.3

  • cache mllibRatings RDD in algorithm train() because it is used at multiple places (non-empty data check and ALS)

v0.1.2

  • update for PredictionIO 0.9.0

v0.1.1

  • Persist RDD to memory (.cache()) in DataSource for better performance
  • Use local model for faster serving.

v0.1.0

  • initial version

Development Notes

import sample data

$ python data/import_eventserver.py --access_key <your_access_key>

sample query

normal:

curl -H "Content-Type: application/json" \
-d '{ "items": ["i1", "i3", "i10", "i2", "i5", "i31", "i9"], "num": 10}' \
http://localhost:8000/queries.json \
-w %{time_connect}:%{time_starttransfer}:%{time_total}

curl -H "Content-Type: application/json" \
-d '{
  "items": ["i1", "i3", "i10", "i2", "i5", "i31", "i9"],
  "num": 10,
  "categories" : ["c4", "c3"]
}' \
http://localhost:8000/queries.json \
-w %{time_connect}:%{time_starttransfer}:%{time_total}

curl -H "Content-Type: application/json" \
-d '{
  "items": ["i1", "i3", "i10", "i2", "i5", "i31", "i9"],
  "num": 10,
  "whiteList": ["i21", "i26", "i40"]
}' \
http://localhost:8000/queries.json \
-w %{time_connect}:%{time_starttransfer}:%{time_total}

curl -H "Content-Type: application/json" \
-d '{
  "items": ["i1", "i3", "i10", "i2", "i5", "i31", "i9"],
  "num": 10,
  "blackList": ["i21", "i26", "i40"]
}' \
http://localhost:8000/queries.json \
-w %{time_connect}:%{time_starttransfer}:%{time_total}

unknown item:

curl -H "Content-Type: application/json" \
-d '{ "items": ["unk1", "i3", "i10", "i2", "i5", "i31", "i9"], "num": 10}' \
http://localhost:8000/queries.json \
-w %{time_connect}:%{time_starttransfer}:%{time_total}

all unknown items:

curl -H "Content-Type: application/json" \
-d '{ "items": ["unk1", "unk2", "unk3", "unk4"], "num": 10}' \
http://localhost:8000/queries.json \
-w %{time_connect}:%{time_starttransfer}:%{time_total}