Commerce Recommenders results are not sorted by relevance

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 2.1.2
• Component/s: Commerce Intelligence Layer → Product Recommendations
• Labels:
  • Centaurus
• Severity of Issue: Major
• Git Pull Request: https://github.com/marco-leo/liferay-portal-ee/pull/914

Steps to reproduce:

• Deploy Minium DEMO pack
• Configure Data Integration to run cloud based content recommendations
• Run the recommendations
• Configure the product publisher in the product detail page to display content-based recommendations
• Inspect displayed recommendations
  • rise com.liferay.commerce.machine.learning.internal.recommendation.data.source to TRACE

Recommended item: 38142 rank: 0 score: 0.15621524
Recommended item: 38254 rank: 0 score: 0.108484715
Recommended item: 38350 rank: 0 score: 0.18517317
Recommended item: 37818 rank: 0 score: 0.06070853
Recommended item: 38506 rank: 0 score: 0.047181662
Recommended item: 38022 rank: 0 score: 0.047181662
Recommended item: 37873 rank: 0 score: 0.047181662
Recommended item: 38394 rank: 0 score: 0.057827547
Recommended item: 38159 rank: 0 score: 0.92831624
Recommended item: 38410 rank: 0 score: 0.090075605

Rank is 0 and sort is random

Expected Results:

Results are sorted by rank and displayed accordingly 

Actual Results:

Recommendations are shown in random order