blacklistIndicators doens't work

[Jerard]

Hello,

I'm facing a problem with excluding items from recommendations by default.

Please see the engine config:

{
  "engineId": "my_engine",
  "engineFactory": "com.actionml.engines.ur.UREngine",
  "dataset": {
    "ttl": "3652 days"
  },
  "sparkConf": {
    "es.index.auto.create": "true",
    "es.nodes": "elasticsearch",
    "es.nodes.wan.only": "true",
    "master": "local",
    "spark.driver.memory": "10g",
    "spark.es.index.auto.create": "true",
    "spark.es.nodes": "elasticsearch",
    "spark.es.nodes.wan.only": "true",
    "spark.executor.memory": "20g",
    "spark.kryo.referenceTracking": "false",
    "spark.kryo.registrator": "org.apache.mahout.sparkbindings.io.MahoutKryoRegistrator",
    "spark.kryoserializer.buffer": "500m",
    "spark.serializer": "org.apache.spark.serializer.KryoSerializer"
  },
  "algorithm": {
    "returnSelf": "false",
    "blacklistIndicators": ["like", "watch", "dislike"],
    "indicators": [
      { "name": "like" },
      { "name": "wish" },
      { "name": "watch" },
      { "name": "dislike" }
    ]
  }
}

Items that do have any blacklistIndicators event (like,watch,dislike) keeps getting back.

So far I've tried to remove "blacklistIndicators" from the config and recreate engine, but it didn't help. Items with primary "like" are still in response.

Also, it works fine when I'm sending all the unwanted items in blacklistItems during query. 

Is blacklistIndicators still supported? How to make it work by default?

Thanks!

[Pat Ferrel]

Do not use “blacklistIndicators”. Where did you see instructions to use that? It is used only for cross-validation tests. And BTW it does work, but is not for general use.

If you are trying to exclude certain items from a single recs result set used the query modifier; "blacklistItems": ["itemId1", "itemId2", …] as seen here: https://actionml.com/docs/h_ur_queries#query-parameter-specification

It is sometimes helpful to exclude items being shown on a page already so you don’t end up repeating items on a single page.

 

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