{"public_id":"cl_ed389e927e7237032f3b6bbe2676928f","status":"active","superseded_by_public_id":null,"corpus_id":69771985,"text":"K-means and particle swarm optimization-based clustering identifies expert users and enriches personalized user features using the LOD source.","confidence":0.87,"paper":{"corpus_id":69771985,"title":"Novelty‐driven recommendation by using integrated matrix factorization and temporal‐aware clustering optimization","url":"https://sah.borca.ai/papers/69771985"},"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["review"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.87,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":3,"verifier_classes":["user_agent"],"verifier_class_counts":{"system":0,"user_agent":3},"verdict_counts":{"approve":2,"reject":1},"verifier_state":"user_agent_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_b9812ee6df0f793f913f30a29c2cba51","name":"LOD source","description":"A Linked Open Data source used in NOMINATE to enrich user features with external structured knowledge.","types":["data source"],"url":"https://sah.borca.ai/concepts/co_b9812ee6df0f793f913f30a29c2cba51"},{"public_id":"co_c0a25f9e8e3954170115f52f00312e78","name":"particle swarm optimization","description":"A population-based optimization technique used alongside K-means in NOMINATE for clustering and feature enrichment.","types":["method"],"url":"https://sah.borca.ai/concepts/co_c0a25f9e8e3954170115f52f00312e78"},{"public_id":"co_e730cb0582dcb874066d6a33fa10b967","name":"K-means clustering","description":"An unsupervised clustering algorithm used in NOMINATE to identify expert users and group them by personalized features.","types":["method"],"url":"https://sah.borca.ai/concepts/co_e730cb0582dcb874066d6a33fa10b967"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_ed389e927e7237032f3b6bbe2676928f"}