{"id":"W2914428334","doi":"","title":"Unsupervised Topic Modelling in a Book Recommender System for New Users.","year":2017,"lang":"en","type":"article","venue":"International ACM SIGIR Conference on Research and Development in Information Retrieval","topic":"Recommender Systems and Techniques","field":"Computer Science","cited_by":8,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Ottawa","funders":"","keywords":"Recommender system; Computer science; Information retrieval; World Wide Web; Data science","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["scholarly_communication"],"consensus_categories":[],"category_scores_codex":[0.001372492,0.0001254051,0.0001669351,0.000637215,0.0002442949,0.001286926,0.001525972,0.00009724005,0.00001712794],"category_scores_gemma":[0.0003488557,0.0001151651,0.00002149754,0.0001018545,0.00003073598,0.002253881,0.0004743742,0.0002573542,0.00002196852],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003202301,"about_ca_system_score_gemma":0.0004396201,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002342633,"about_ca_topic_score_gemma":0.00004050799,"domain_scores_codex":[0.9982542,0.00004486768,0.00055464,0.0002374078,0.0005986064,0.0003102657],"domain_scores_gemma":[0.9986342,0.0002711695,0.0001553244,0.0004380912,0.0003926171,0.0001086262],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0006645989,0.0001731593,0.01799507,0.0003477472,0.00007429263,0.00002042278,0.008720825,0.0002174914,0.000057563,0.7344881,0.009334725,0.2279061],"study_design_scores_gemma":[0.008004786,0.0005936627,0.02281346,0.002115533,0.000001401318,0.00002640214,0.001720652,0.5696884,0.008674638,0.04367816,0.3416859,0.0009969396],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.03702819,0.00006007056,0.9147211,0.01891432,0.001205729,0.001670677,0.00001225509,0.0001536476,0.02623397],"genre_scores_gemma":[0.9521067,0.0001271947,0.04691444,0.0002159731,0.00004838542,0.0001064446,0.00002439623,0.000005127908,0.0004513722],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.9150785,"threshold_uncertainty_score":0.9997498,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2121619465191949,"score_gpt":0.3764098487742873,"score_spread":0.1642479022550924,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}