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template-scala-parallel-complementarypurchase

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PredictionIO Complementary Purchase Engine Template (Scala-based parallelized engine)

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# Complementary Purchase Engine Template

## Documentation

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

## Versions

### v0.3.3

- change to sort by confidence instead of lift score and change default parameter values

### v0.3.2

- lower the default minSupport and minConfidence parameter setting

### v0.3.1

- Add `minBasketSize` algorithm parameter.

### 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

### v0.1.1

- Template name typo fix. Rename from "Complimentary" to "Complementary"

### v0.1.0

- initial version (require PredictionIO >= 0.9.0)

## Development Notes

### import sample data

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

### sample query

```
$ curl -H "Content-Type: application/json" \
-d '{
  "items" : ["s2i1"],
  "num" : 3 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

```
curl -H "Content-Type: application/json" \
-d '{
  "items" : ["s2i1", "s2i3", "s1i2"],
  "num" : 3 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

```
$ curl -H "Content-Type: application/json" \
-d '{
  "items" : ["s1i2", "s1i1"],
  "num" : 4 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

```
$ curl -H "Content-Type: application/json" \
-d '{
  "items" : ["x", "s1i1"],
  "num" : 4 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

```
$ curl -H "Content-Type: application/json" \
-d '{
  "items" : ["i1"],
  "num" : 3 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

```
curl -H "Content-Type: application/json" \
-d '{
  "items" : ["p1", "p2", "p3"],
  "num" : 3 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

```
$ curl -H "Content-Type: application/json" \
-d '{
  "items" : ["i2", "i3"],
  "num" : 4 }' \
http://localhost:8000/queries.json \
-w %{time_total}
```

template-scala-parallel-complementarypurchase

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