[SOLR-11941] add abstract contrib/ltr AdapterModel

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.3, 8.0
• Component/s: contrib - LTR
• Assignee: Christine Poerschke
• Reporter: Christine Poerschke
• Created: 02/Feb/18 20:49
• Updated: 18/May/18 19:36
• Resolved: 15/Feb/18 21:46

Description

The abstract AdapterModel class is to facilitate the development of open-source (or custom) scoring models whose initialization is completed when a SolrResourceLoader is supplied in the init method call. Via the SolrResourceLoader a file defining an pre-trained model can be opened and once instantiated the LTRScoringModel.score() method can delegate calculations to the implementing model instance.

illustration/work-in-progress:

• open pull request: https://github.com/deeplearning4j/deeplearning4j/pull/4662

deriving classes:

• TestAdapterMode$CustomModel in the TestAdapterModel.java
• future todo: when they exist add links to open-source models extending AbstractModel

Issue Links

• is related to: SOLR-11838 explore supporting Deeplearning4j NeuralNetwork models