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---
tags:
- sentence-transformers
- feature-extraction
- sentence-similarity
- mteb
- RAG
model-index:
- name: Dmeta-embedding
  results:
  - task:
      type: STS
    dataset:
      type: C-MTEB/AFQMC
      name: MTEB AFQMC
      config: default
      split: validation
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 65.60825224706932
    - type: cos_sim_spearman
      value: 71.12862586297193
    - type: euclidean_pearson
      value: 70.18130275750404
    - type: euclidean_spearman
      value: 71.12862586297193
    - type: manhattan_pearson
      value: 70.14470398075396
    - type: manhattan_spearman
      value: 71.05226975911737
  - task:
      type: STS
    dataset:
      type: C-MTEB/ATEC
      name: MTEB ATEC
      config: default
      split: test
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 65.52386345655479
    - type: cos_sim_spearman
      value: 64.64245253181382
    - type: euclidean_pearson
      value: 73.20157662981914
    - type: euclidean_spearman
      value: 64.64245253178956
    - type: manhattan_pearson
      value: 73.22837571756348
    - type: manhattan_spearman
      value: 64.62632334391418
  - task:
      type: Classification
    dataset:
      type: mteb/amazon_reviews_multi
      name: MTEB AmazonReviewsClassification (zh)
      config: zh
      split: test
      revision: 1399c76144fd37290681b995c656ef9b2e06e26d
    metrics:
    - type: accuracy
      value: 44.925999999999995
    - type: f1
      value: 42.82555191308971
  - task:
      type: STS
    dataset:
      type: C-MTEB/BQ
      name: MTEB BQ
      config: default
      split: test
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 71.35236446393156
    - type: cos_sim_spearman
      value: 72.29629643702184
    - type: euclidean_pearson
      value: 70.94570179874498
    - type: euclidean_spearman
      value: 72.29629297226953
    - type: manhattan_pearson
      value: 70.84463025501125
    - type: manhattan_spearman
      value: 72.24527021975821
  - task:
      type: Clustering
    dataset:
      type: C-MTEB/CLSClusteringP2P
      name: MTEB CLSClusteringP2P
      config: default
      split: test
      revision: None
    metrics:
    - type: v_measure
      value: 40.24232916894152
  - task:
      type: Clustering
    dataset:
      type: C-MTEB/CLSClusteringS2S
      name: MTEB CLSClusteringS2S
      config: default
      split: test
      revision: None
    metrics:
    - type: v_measure
      value: 39.167806226929706
  - task:
      type: Reranking
    dataset:
      type: C-MTEB/CMedQAv1-reranking
      name: MTEB CMedQAv1
      config: default
      split: test
      revision: None
    metrics:
    - type: map
      value: 88.48837920106357
    - type: mrr
      value: 90.36861111111111
  - task:
      type: Reranking
    dataset:
      type: C-MTEB/CMedQAv2-reranking
      name: MTEB CMedQAv2
      config: default
      split: test
      revision: None
    metrics:
    - type: map
      value: 89.17878171657071
    - type: mrr
      value: 91.35805555555555
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/CmedqaRetrieval
      name: MTEB CmedqaRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 25.751
    - type: map_at_10
      value: 38.946
    - type: map_at_100
      value: 40.855000000000004
    - type: map_at_1000
      value: 40.953
    - type: map_at_3
      value: 34.533
    - type: map_at_5
      value: 36.905
    - type: mrr_at_1
      value: 39.235
    - type: mrr_at_10
      value: 47.713
    - type: mrr_at_100
      value: 48.71
    - type: mrr_at_1000
      value: 48.747
    - type: mrr_at_3
      value: 45.086
    - type: mrr_at_5
      value: 46.498
    - type: ndcg_at_1
      value: 39.235
    - type: ndcg_at_10
      value: 45.831
    - type: ndcg_at_100
      value: 53.162
    - type: ndcg_at_1000
      value: 54.800000000000004
    - type: ndcg_at_3
      value: 40.188
    - type: ndcg_at_5
      value: 42.387
    - type: precision_at_1
      value: 39.235
    - type: precision_at_10
      value: 10.273
    - type: precision_at_100
      value: 1.627
    - type: precision_at_1000
      value: 0.183
    - type: precision_at_3
      value: 22.772000000000002
    - type: precision_at_5
      value: 16.524
    - type: recall_at_1
      value: 25.751
    - type: recall_at_10
      value: 57.411
    - type: recall_at_100
      value: 87.44
    - type: recall_at_1000
      value: 98.386
    - type: recall_at_3
      value: 40.416000000000004
    - type: recall_at_5
      value: 47.238
  - task:
      type: PairClassification
    dataset:
      type: C-MTEB/CMNLI
      name: MTEB Cmnli
      config: default
      split: validation
      revision: None
    metrics:
    - type: cos_sim_accuracy
      value: 83.59591100420926
    - type: cos_sim_ap
      value: 90.65538153970263
    - type: cos_sim_f1
      value: 84.76466651795673
    - type: cos_sim_precision
      value: 81.04073363190446
    - type: cos_sim_recall
      value: 88.84732288987608
    - type: dot_accuracy
      value: 83.59591100420926
    - type: dot_ap
      value: 90.64355541781003
    - type: dot_f1
      value: 84.76466651795673
    - type: dot_precision
      value: 81.04073363190446
    - type: dot_recall
      value: 88.84732288987608
    - type: euclidean_accuracy
      value: 83.59591100420926
    - type: euclidean_ap
      value: 90.6547878194287
    - type: euclidean_f1
      value: 84.76466651795673
    - type: euclidean_precision
      value: 81.04073363190446
    - type: euclidean_recall
      value: 88.84732288987608
    - type: manhattan_accuracy
      value: 83.51172579675286
    - type: manhattan_ap
      value: 90.59941589844144
    - type: manhattan_f1
      value: 84.51827242524917
    - type: manhattan_precision
      value: 80.28613507258574
    - type: manhattan_recall
      value: 89.22141688099134
    - type: max_accuracy
      value: 83.59591100420926
    - type: max_ap
      value: 90.65538153970263
    - type: max_f1
      value: 84.76466651795673
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/CovidRetrieval
      name: MTEB CovidRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 63.251000000000005
    - type: map_at_10
      value: 72.442
    - type: map_at_100
      value: 72.79299999999999
    - type: map_at_1000
      value: 72.80499999999999
    - type: map_at_3
      value: 70.293
    - type: map_at_5
      value: 71.571
    - type: mrr_at_1
      value: 63.541000000000004
    - type: mrr_at_10
      value: 72.502
    - type: mrr_at_100
      value: 72.846
    - type: mrr_at_1000
      value: 72.858
    - type: mrr_at_3
      value: 70.39
    - type: mrr_at_5
      value: 71.654
    - type: ndcg_at_1
      value: 63.541000000000004
    - type: ndcg_at_10
      value: 76.774
    - type: ndcg_at_100
      value: 78.389
    - type: ndcg_at_1000
      value: 78.678
    - type: ndcg_at_3
      value: 72.47
    - type: ndcg_at_5
      value: 74.748
    - type: precision_at_1
      value: 63.541000000000004
    - type: precision_at_10
      value: 9.115
    - type: precision_at_100
      value: 0.9860000000000001
    - type: precision_at_1000
      value: 0.101
    - type: precision_at_3
      value: 26.379
    - type: precision_at_5
      value: 16.965
    - type: recall_at_1
      value: 63.251000000000005
    - type: recall_at_10
      value: 90.253
    - type: recall_at_100
      value: 97.576
    - type: recall_at_1000
      value: 99.789
    - type: recall_at_3
      value: 78.635
    - type: recall_at_5
      value: 84.141
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/DuRetrieval
      name: MTEB DuRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 23.597
    - type: map_at_10
      value: 72.411
    - type: map_at_100
      value: 75.58500000000001
    - type: map_at_1000
      value: 75.64800000000001
    - type: map_at_3
      value: 49.61
    - type: map_at_5
      value: 62.527
    - type: mrr_at_1
      value: 84.65
    - type: mrr_at_10
      value: 89.43900000000001
    - type: mrr_at_100
      value: 89.525
    - type: mrr_at_1000
      value: 89.529
    - type: mrr_at_3
      value: 89
    - type: mrr_at_5
      value: 89.297
    - type: ndcg_at_1
      value: 84.65
    - type: ndcg_at_10
      value: 81.47
    - type: ndcg_at_100
      value: 85.198
    - type: ndcg_at_1000
      value: 85.828
    - type: ndcg_at_3
      value: 79.809
    - type: ndcg_at_5
      value: 78.55
    - type: precision_at_1
      value: 84.65
    - type: precision_at_10
      value: 39.595
    - type: precision_at_100
      value: 4.707
    - type: precision_at_1000
      value: 0.485
    - type: precision_at_3
      value: 71.61699999999999
    - type: precision_at_5
      value: 60.45
    - type: recall_at_1
      value: 23.597
    - type: recall_at_10
      value: 83.34
    - type: recall_at_100
      value: 95.19800000000001
    - type: recall_at_1000
      value: 98.509
    - type: recall_at_3
      value: 52.744
    - type: recall_at_5
      value: 68.411
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/EcomRetrieval
      name: MTEB EcomRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 53.1
    - type: map_at_10
      value: 63.359
    - type: map_at_100
      value: 63.9
    - type: map_at_1000
      value: 63.909000000000006
    - type: map_at_3
      value: 60.95
    - type: map_at_5
      value: 62.305
    - type: mrr_at_1
      value: 53.1
    - type: mrr_at_10
      value: 63.359
    - type: mrr_at_100
      value: 63.9
    - type: mrr_at_1000
      value: 63.909000000000006
    - type: mrr_at_3
      value: 60.95
    - type: mrr_at_5
      value: 62.305
    - type: ndcg_at_1
      value: 53.1
    - type: ndcg_at_10
      value: 68.418
    - type: ndcg_at_100
      value: 70.88499999999999
    - type: ndcg_at_1000
      value: 71.135
    - type: ndcg_at_3
      value: 63.50599999999999
    - type: ndcg_at_5
      value: 65.92
    - type: precision_at_1
      value: 53.1
    - type: precision_at_10
      value: 8.43
    - type: precision_at_100
      value: 0.955
    - type: precision_at_1000
      value: 0.098
    - type: precision_at_3
      value: 23.633000000000003
    - type: precision_at_5
      value: 15.340000000000002
    - type: recall_at_1
      value: 53.1
    - type: recall_at_10
      value: 84.3
    - type: recall_at_100
      value: 95.5
    - type: recall_at_1000
      value: 97.5
    - type: recall_at_3
      value: 70.89999999999999
    - type: recall_at_5
      value: 76.7
  - task:
      type: Classification
    dataset:
      type: C-MTEB/IFlyTek-classification
      name: MTEB IFlyTek
      config: default
      split: validation
      revision: None
    metrics:
    - type: accuracy
      value: 48.303193535975375
    - type: f1
      value: 35.96559358693866
  - task:
      type: Classification
    dataset:
      type: C-MTEB/JDReview-classification
      name: MTEB JDReview
      config: default
      split: test
      revision: None
    metrics:
    - type: accuracy
      value: 85.06566604127579
    - type: ap
      value: 52.0596483757231
    - type: f1
      value: 79.5196835127668
  - task:
      type: STS
    dataset:
      type: C-MTEB/LCQMC
      name: MTEB LCQMC
      config: default
      split: test
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 74.48499423626059
    - type: cos_sim_spearman
      value: 78.75806756061169
    - type: euclidean_pearson
      value: 78.47917601852879
    - type: euclidean_spearman
      value: 78.75807199272622
    - type: manhattan_pearson
      value: 78.40207586289772
    - type: manhattan_spearman
      value: 78.6911776964119
  - task:
      type: Reranking
    dataset:
      type: C-MTEB/Mmarco-reranking
      name: MTEB MMarcoReranking
      config: default
      split: dev
      revision: None
    metrics:
    - type: map
      value: 24.75987466552363
    - type: mrr
      value: 23.40515873015873
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/MMarcoRetrieval
      name: MTEB MMarcoRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 58.026999999999994
    - type: map_at_10
      value: 67.50699999999999
    - type: map_at_100
      value: 67.946
    - type: map_at_1000
      value: 67.96600000000001
    - type: map_at_3
      value: 65.503
    - type: map_at_5
      value: 66.649
    - type: mrr_at_1
      value: 60.20100000000001
    - type: mrr_at_10
      value: 68.271
    - type: mrr_at_100
      value: 68.664
    - type: mrr_at_1000
      value: 68.682
    - type: mrr_at_3
      value: 66.47800000000001
    - type: mrr_at_5
      value: 67.499
    - type: ndcg_at_1
      value: 60.20100000000001
    - type: ndcg_at_10
      value: 71.697
    - type: ndcg_at_100
      value: 73.736
    - type: ndcg_at_1000
      value: 74.259
    - type: ndcg_at_3
      value: 67.768
    - type: ndcg_at_5
      value: 69.72
    - type: precision_at_1
      value: 60.20100000000001
    - type: precision_at_10
      value: 8.927999999999999
    - type: precision_at_100
      value: 0.9950000000000001
    - type: precision_at_1000
      value: 0.104
    - type: precision_at_3
      value: 25.883
    - type: precision_at_5
      value: 16.55
    - type: recall_at_1
      value: 58.026999999999994
    - type: recall_at_10
      value: 83.966
    - type: recall_at_100
      value: 93.313
    - type: recall_at_1000
      value: 97.426
    - type: recall_at_3
      value: 73.342
    - type: recall_at_5
      value: 77.997
  - task:
      type: Classification
    dataset:
      type: mteb/amazon_massive_intent
      name: MTEB MassiveIntentClassification (zh-CN)
      config: zh-CN
      split: test
      revision: 31efe3c427b0bae9c22cbb560b8f15491cc6bed7
    metrics:
    - type: accuracy
      value: 71.1600537995965
    - type: f1
      value: 68.8126216609964
  - task:
      type: Classification
    dataset:
      type: mteb/amazon_massive_scenario
      name: MTEB MassiveScenarioClassification (zh-CN)
      config: zh-CN
      split: test
      revision: 7d571f92784cd94a019292a1f45445077d0ef634
    metrics:
    - type: accuracy
      value: 73.54068594485541
    - type: f1
      value: 73.46845879869848
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/MedicalRetrieval
      name: MTEB MedicalRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 54.900000000000006
    - type: map_at_10
      value: 61.363
    - type: map_at_100
      value: 61.924
    - type: map_at_1000
      value: 61.967000000000006
    - type: map_at_3
      value: 59.767
    - type: map_at_5
      value: 60.802
    - type: mrr_at_1
      value: 55.1
    - type: mrr_at_10
      value: 61.454
    - type: mrr_at_100
      value: 62.016000000000005
    - type: mrr_at_1000
      value: 62.059
    - type: mrr_at_3
      value: 59.882999999999996
    - type: mrr_at_5
      value: 60.893
    - type: ndcg_at_1
      value: 54.900000000000006
    - type: ndcg_at_10
      value: 64.423
    - type: ndcg_at_100
      value: 67.35900000000001
    - type: ndcg_at_1000
      value: 68.512
    - type: ndcg_at_3
      value: 61.224000000000004
    - type: ndcg_at_5
      value: 63.083
    - type: precision_at_1
      value: 54.900000000000006
    - type: precision_at_10
      value: 7.3999999999999995
    - type: precision_at_100
      value: 0.882
    - type: precision_at_1000
      value: 0.097
    - type: precision_at_3
      value: 21.8
    - type: precision_at_5
      value: 13.98
    - type: recall_at_1
      value: 54.900000000000006
    - type: recall_at_10
      value: 74
    - type: recall_at_100
      value: 88.2
    - type: recall_at_1000
      value: 97.3
    - type: recall_at_3
      value: 65.4
    - type: recall_at_5
      value: 69.89999999999999
  - task:
      type: Classification
    dataset:
      type: C-MTEB/MultilingualSentiment-classification
      name: MTEB MultilingualSentiment
      config: default
      split: validation
      revision: None
    metrics:
    - type: accuracy
      value: 75.15666666666667
    - type: f1
      value: 74.8306375354435
  - task:
      type: PairClassification
    dataset:
      type: C-MTEB/OCNLI
      name: MTEB Ocnli
      config: default
      split: validation
      revision: None
    metrics:
    - type: cos_sim_accuracy
      value: 83.10774228478614
    - type: cos_sim_ap
      value: 87.17679348388666
    - type: cos_sim_f1
      value: 84.59302325581395
    - type: cos_sim_precision
      value: 78.15577439570276
    - type: cos_sim_recall
      value: 92.18585005279832
    - type: dot_accuracy
      value: 83.10774228478614
    - type: dot_ap
      value: 87.17679348388666
    - type: dot_f1
      value: 84.59302325581395
    - type: dot_precision
      value: 78.15577439570276
    - type: dot_recall
      value: 92.18585005279832
    - type: euclidean_accuracy
      value: 83.10774228478614
    - type: euclidean_ap
      value: 87.17679348388666
    - type: euclidean_f1
      value: 84.59302325581395
    - type: euclidean_precision
      value: 78.15577439570276
    - type: euclidean_recall
      value: 92.18585005279832
    - type: manhattan_accuracy
      value: 82.67460747157553
    - type: manhattan_ap
      value: 86.94296334435238
    - type: manhattan_f1
      value: 84.32327166504382
    - type: manhattan_precision
      value: 78.22944896115628
    - type: manhattan_recall
      value: 91.4466737064414
    - type: max_accuracy
      value: 83.10774228478614
    - type: max_ap
      value: 87.17679348388666
    - type: max_f1
      value: 84.59302325581395
  - task:
      type: Classification
    dataset:
      type: C-MTEB/OnlineShopping-classification
      name: MTEB OnlineShopping
      config: default
      split: test
      revision: None
    metrics:
    - type: accuracy
      value: 93.24999999999999
    - type: ap
      value: 90.98617641063584
    - type: f1
      value: 93.23447883650289
  - task:
      type: STS
    dataset:
      type: C-MTEB/PAWSX
      name: MTEB PAWSX
      config: default
      split: test
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 41.071417937737856
    - type: cos_sim_spearman
      value: 45.049199344455424
    - type: euclidean_pearson
      value: 44.913450096830786
    - type: euclidean_spearman
      value: 45.05733424275291
    - type: manhattan_pearson
      value: 44.881623825912065
    - type: manhattan_spearman
      value: 44.989923561416596
  - task:
      type: STS
    dataset:
      type: C-MTEB/QBQTC
      name: MTEB QBQTC
      config: default
      split: test
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 41.38238052689359
    - type: cos_sim_spearman
      value: 42.61949690594399
    - type: euclidean_pearson
      value: 40.61261500356766
    - type: euclidean_spearman
      value: 42.619626605620724
    - type: manhattan_pearson
      value: 40.8886109204474
    - type: manhattan_spearman
      value: 42.75791523010463
  - task:
      type: STS
    dataset:
      type: mteb/sts22-crosslingual-sts
      name: MTEB STS22 (zh)
      config: zh
      split: test
      revision: 6d1ba47164174a496b7fa5d3569dae26a6813b80
    metrics:
    - type: cos_sim_pearson
      value: 62.10977863727196
    - type: cos_sim_spearman
      value: 63.843727112473225
    - type: euclidean_pearson
      value: 63.25133487817196
    - type: euclidean_spearman
      value: 63.843727112473225
    - type: manhattan_pearson
      value: 63.58749018644103
    - type: manhattan_spearman
      value: 63.83820575456674
  - task:
      type: STS
    dataset:
      type: C-MTEB/STSB
      name: MTEB STSB
      config: default
      split: test
      revision: None
    metrics:
    - type: cos_sim_pearson
      value: 79.30616496720054
    - type: cos_sim_spearman
      value: 80.767935782436
    - type: euclidean_pearson
      value: 80.4160642670106
    - type: euclidean_spearman
      value: 80.76820284024356
    - type: manhattan_pearson
      value: 80.27318714580251
    - type: manhattan_spearman
      value: 80.61030164164964
  - task:
      type: Reranking
    dataset:
      type: C-MTEB/T2Reranking
      name: MTEB T2Reranking
      config: default
      split: dev
      revision: None
    metrics:
    - type: map
      value: 66.26242871142425
    - type: mrr
      value: 76.20689863623174
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/T2Retrieval
      name: MTEB T2Retrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 26.240999999999996
    - type: map_at_10
      value: 73.009
    - type: map_at_100
      value: 76.893
    - type: map_at_1000
      value: 76.973
    - type: map_at_3
      value: 51.339
    - type: map_at_5
      value: 63.003
    - type: mrr_at_1
      value: 87.458
    - type: mrr_at_10
      value: 90.44
    - type: mrr_at_100
      value: 90.558
    - type: mrr_at_1000
      value: 90.562
    - type: mrr_at_3
      value: 89.89
    - type: mrr_at_5
      value: 90.231
    - type: ndcg_at_1
      value: 87.458
    - type: ndcg_at_10
      value: 81.325
    - type: ndcg_at_100
      value: 85.61999999999999
    - type: ndcg_at_1000
      value: 86.394
    - type: ndcg_at_3
      value: 82.796
    - type: ndcg_at_5
      value: 81.219
    - type: precision_at_1
      value: 87.458
    - type: precision_at_10
      value: 40.534
    - type: precision_at_100
      value: 4.96
    - type: precision_at_1000
      value: 0.514
    - type: precision_at_3
      value: 72.444
    - type: precision_at_5
      value: 60.601000000000006
    - type: recall_at_1
      value: 26.240999999999996
    - type: recall_at_10
      value: 80.42
    - type: recall_at_100
      value: 94.118
    - type: recall_at_1000
      value: 98.02199999999999
    - type: recall_at_3
      value: 53.174
    - type: recall_at_5
      value: 66.739
  - task:
      type: Classification
    dataset:
      type: C-MTEB/TNews-classification
      name: MTEB TNews
      config: default
      split: validation
      revision: None
    metrics:
    - type: accuracy
      value: 52.40899999999999
    - type: f1
      value: 50.68532128056062
  - task:
      type: Clustering
    dataset:
      type: C-MTEB/ThuNewsClusteringP2P
      name: MTEB ThuNewsClusteringP2P
      config: default
      split: test
      revision: None
    metrics:
    - type: v_measure
      value: 65.57616085176686
  - task:
      type: Clustering
    dataset:
      type: C-MTEB/ThuNewsClusteringS2S
      name: MTEB ThuNewsClusteringS2S
      config: default
      split: test
      revision: None
    metrics:
    - type: v_measure
      value: 58.844999922904925
  - task:
      type: Retrieval
    dataset:
      type: C-MTEB/VideoRetrieval
      name: MTEB VideoRetrieval
      config: default
      split: dev
      revision: None
    metrics:
    - type: map_at_1
      value: 58.4
    - type: map_at_10
      value: 68.64
    - type: map_at_100
      value: 69.062
    - type: map_at_1000
      value: 69.073
    - type: map_at_3
      value: 66.567
    - type: map_at_5
      value: 67.89699999999999
    - type: mrr_at_1
      value: 58.4
    - type: mrr_at_10
      value: 68.64
    - type: mrr_at_100
      value: 69.062
    - type: mrr_at_1000
      value: 69.073
    - type: mrr_at_3
      value: 66.567
    - type: mrr_at_5
      value: 67.89699999999999
    - type: ndcg_at_1
      value: 58.4
    - type: ndcg_at_10
      value: 73.30600000000001
    - type: ndcg_at_100
      value: 75.276
    - type: ndcg_at_1000
      value: 75.553
    - type: ndcg_at_3
      value: 69.126
    - type: ndcg_at_5
      value: 71.519
    - type: precision_at_1
      value: 58.4
    - type: precision_at_10
      value: 8.780000000000001
    - type: precision_at_100
      value: 0.968
    - type: precision_at_1000
      value: 0.099
    - type: precision_at_3
      value: 25.5
    - type: precision_at_5
      value: 16.46
    - type: recall_at_1
      value: 58.4
    - type: recall_at_10
      value: 87.8
    - type: recall_at_100
      value: 96.8
    - type: recall_at_1000
      value: 99
    - type: recall_at_3
      value: 76.5
    - type: recall_at_5
      value: 82.3
  - task:
      type: Classification
    dataset:
      type: C-MTEB/waimai-classification
      name: MTEB Waimai
      config: default
      split: test
      revision: None
    metrics:
    - type: accuracy
      value: 86.21000000000001
    - type: ap
      value: 69.17460264576461
    - type: f1
      value: 84.68032984659226
license: apache-2.0
language:
- zh
- en
pipeline_tag: feature-extraction
---

<div align="center">
<img src="logo.png" alt="icon" width="100px"/>
</div>

<h1 align="center">Dmeta-embedding</h1>
<h4 align="center">
    <p>
      <a href="https://huggingface.co/DMetaSoul/Dmeta-embedding/README.md">English</a>  |
      <a href="https://huggingface.co/DMetaSoul/Dmeta-embedding/blob/main/README_zh.md">中文</a>
    </p>
    <p>
        <a href=#usage>Usage</a>  |
        <a href="#evaluation">Evaluation (MTEB)</a> |
        <a href=#faq>FAQ</a> |
        <a href="#contact">Contact</a> |
        <a href="#license">License (Free)</a> 
    <p>
</h4>

**Update News**

- **2024.04.01**, The Dmeta-embedding [**small version**](https://huggingface.co/DMetaSoul/Dmeta-embedding-zh-small) is released. Just with 8 layers, inference is more efficient, about 30% improved.
- **2024.02.07**, The **Embedding API** service based on the Dmeta-embedding model now open for internal beta testing. [**Click the link**](https://dmetasoul.feishu.cn/share/base/form/shrcnu7mN1BDwKFfgGXG9Rb1yDf) to apply, and you will receive **400M tokens** for free, which can encode approximately GB-level Chinese text.

    - Our original intention. Let everyone use Embedding technology at low cost, pay more attention to their own business and product services, and leave the complex technical parts to us.
    - How to apply and use. [Click the link](https://dmetasoul.feishu.cn/share/base/form/shrcnu7mN1BDwKFfgGXG9Rb1yDf) to submit a form. We will reply to you via <[email protected]> within 48 hours. In order to be compatible with the large language model (LLM) technology ecosystem, our Embedding API is used in the same way as OpenAI. We will explain the specific usage in the reply email.
    - Join the ours. In the future, we will continue to work in the direction of large language models/AIGC to bring valuable technologies to the community. You can [click on the picture](https://huggingface.co/DMetaSoul/Dmeta-embedding/resolve/main/weixin.jpeg) and scan the QR code to join our WeChat community and cheer for the AIGC together!

------

**Dmeta-embedding** is a cross-domain, cross-task, out-of-the-box Chinese embedding model. It is suitable for various scenarios such as search engine, Q&A, intelligent customer service, LLM+RAG, etc. It supports inference using tools like Transformers/Sentence-Transformers/Langchain.

Features:

- Excellent cross-domain and scene generalization performance, currently ranked second on the **[MTEB](https://huggingface.co/spaces/mteb/leaderboard) Chinese leaderboard**. (2024.01.25)
- The parameter size of model is just **400MB**, which can greatly reduce the cost of inference.
- The context window length is up to **1024**, more suitable for long text retrieval, RAG and other scenarios

## Usage

The model supports inference through frameworks such as [Sentence-Transformers](#sentence-transformers), [Langchain](#langchain), [Huggingface Transformers](#huggingface-transformers), etc. For specific usage, please refer to the following examples.


### Sentence-Transformers

Load and inference Dmeta-embedding via [sentence-transformers](https://www.SBERT.net) as following:

```
pip install -U sentence-transformers
```

```python
from sentence_transformers import SentenceTransformer

texts1 = ["胡子长得太快怎么办?", "在香港哪里买手表好"]
texts2 = ["胡子长得快怎么办?", "怎样使胡子不浓密!", "香港买手表哪里好", "在杭州手机到哪里买"]

model = SentenceTransformer('DMetaSoul/Dmeta-embedding')
embs1 = model.encode(texts1, normalize_embeddings=True)
embs2 = model.encode(texts2, normalize_embeddings=True)

similarity = embs1 @ embs2.T
print(similarity)

for i in range(len(texts1)):
    scores = []
    for j in range(len(texts2)):
        scores.append([texts2[j], similarity[i][j]])
    scores = sorted(scores, key=lambda x:x[1], reverse=True)

    print(f"查询文本:{texts1[i]}")
    for text2, score in scores:
        print(f"相似文本:{text2},打分:{score}")
    print()
```

Output:

```
查询文本:胡子长得太快怎么办?
相似文本:胡子长得快怎么办?,打分:0.9535336494445801
相似文本:怎样使胡子不浓密!,打分:0.6776421070098877
相似文本:香港买手表哪里好,打分:0.2297907918691635
相似文本:在杭州手机到哪里买,打分:0.11386542022228241

查询文本:在香港哪里买手表好
相似文本:香港买手表哪里好,打分:0.9843372106552124
相似文本:在杭州手机到哪里买,打分:0.45211508870124817
相似文本:胡子长得快怎么办?,打分:0.19985519349575043
相似文本:怎样使胡子不浓密!,打分:0.18558596074581146
```

### Langchain

Load and inference Dmeta-embedding via [langchain](https://www.langchain.com/) as following:

```
pip install -U langchain
```

```python
import torch
import numpy as np
from langchain.embeddings import HuggingFaceEmbeddings

model_name = "DMetaSoul/Dmeta-embedding"
model_kwargs = {'device': 'cuda' if torch.cuda.is_available() else 'cpu'}
encode_kwargs = {'normalize_embeddings': True} # set True to compute cosine similarity

model = HuggingFaceEmbeddings(
    model_name=model_name,
    model_kwargs=model_kwargs,
    encode_kwargs=encode_kwargs,
)

texts1 = ["胡子长得太快怎么办?", "在香港哪里买手表好"]
texts2 = ["胡子长得快怎么办?", "怎样使胡子不浓密!", "香港买手表哪里好", "在杭州手机到哪里买"]

embs1 = model.embed_documents(texts1)
embs2 = model.embed_documents(texts2)
embs1, embs2 = np.array(embs1), np.array(embs2)

similarity = embs1 @ embs2.T
print(similarity)

for i in range(len(texts1)):
    scores = []
    for j in range(len(texts2)):
        scores.append([texts2[j], similarity[i][j]])
    scores = sorted(scores, key=lambda x:x[1], reverse=True)

    print(f"查询文本:{texts1[i]}")
    for text2, score in scores:
        print(f"相似文本:{text2},打分:{score}")
    print()
```

### HuggingFace Transformers

Load and inference Dmeta-embedding via [HuggingFace Transformers](https://huggingface.co/docs/transformers/index) as following:

```
pip install -U transformers
```

```python
import torch
from transformers import AutoTokenizer, AutoModel


def mean_pooling(model_output, attention_mask):
    token_embeddings = model_output[0] #First element of model_output contains all token embeddings
    input_mask_expanded = attention_mask.unsqueeze(-1).expand(token_embeddings.size()).float()
    return torch.sum(token_embeddings * input_mask_expanded, 1) / torch.clamp(input_mask_expanded.sum(1), min=1e-9)

def cls_pooling(model_output):
    return model_output[0][:, 0]


texts1 = ["胡子长得太快怎么办?", "在香港哪里买手表好"]
texts2 = ["胡子长得快怎么办?", "怎样使胡子不浓密!", "香港买手表哪里好", "在杭州手机到哪里买"]

tokenizer = AutoTokenizer.from_pretrained('DMetaSoul/Dmeta-embedding')
model = AutoModel.from_pretrained('DMetaSoul/Dmeta-embedding')
model.eval()

with torch.no_grad():
    inputs1 = tokenizer(texts1, padding=True, truncation=True, return_tensors='pt')
    inputs2 = tokenizer(texts2, padding=True, truncation=True, return_tensors='pt')

    model_output1 = model(**inputs1)
    model_output2 = model(**inputs2)
    embs1, embs2 = cls_pooling(model_output1), cls_pooling(model_output2)
    embs1 = torch.nn.functional.normalize(embs1, p=2, dim=1).numpy()
    embs2 = torch.nn.functional.normalize(embs2, p=2, dim=1).numpy()


similarity = embs1 @ embs2.T
print(similarity)

for i in range(len(texts1)):
    scores = []
    for j in range(len(texts2)):
        scores.append([texts2[j], similarity[i][j]])
    scores = sorted(scores, key=lambda x:x[1], reverse=True)

    print(f"查询文本:{texts1[i]}")
    for text2, score in scores:
        print(f"相似文本:{text2},打分:{score}")
    print()
```

## Evaluation

The Dmeta-embedding model ranked first in open source on the [MTEB Chinese list](https://huggingface.co/spaces/mteb/leaderboard) (2024.01.25, first on the Baichuan list, that is not open source). For specific evaluation data and code, please refer to the MTEB [official](https://github.com/embeddings-benchmark/mteb).

**MTEB Chinese**:   

The [Chinese leaderboard dataset](https://github.com/FlagOpen/FlagEmbedding/blob/master/C_MTEB) was collected by the BAAI. It contains 6 classic tasks and a total of 35 Chinese datasets, covering classification, retrieval, reranking, sentence pair classification, STS and other tasks. It is the most comprehensive Embedding model at present. The world's authoritative benchmark of ability assessments.

| Model                                                                                                    | Vendor | Embedding dimension | Avg   | Retrieval | STS   | PairClassification | Classification | Reranking | Clustering |
|:-------------------------------------------------------------------------------------------------------- | ------ |:-------------------:|:-----:|:---------:|:-----:|:------------------:|:--------------:|:---------:|:----------:|
| [Dmeta-embedding](https://huggingface.co/DMetaSoul/Dmeta-embedding)                                      | Our    | 1024                | 67.51 | 70.41     | 64.09 | 88.92              | 70             | 67.17     | 50.96      |
| [gte-large-zh](https://huggingface.co/thenlper/gte-large-zh)                                             | AliBaba Damo  | 1024                | 66.72 | 72.49     | 57.82 | 84.41              | 71.34          | 67.4      | 53.07      |
| [BAAI/bge-large-zh-v1.5](https://huggingface.co/BAAI/bge-large-zh-v1.5)                                  | BAAI     | 1024                | 64.53 | 70.46     | 56.25 | 81.6               | 69.13          | 65.84     | 48.99      |
| [BAAI/bge-base-zh-v1.5](https://huggingface.co/BAAI/bge-base-zh-v1.5)                                    | BAAI     | 768                 | 63.13 | 69.49     | 53.72 | 79.75              | 68.07          | 65.39     | 47.53      |
| [text-embedding-ada-002(OpenAI)](https://platform.openai.com/docs/guides/embeddings/what-are-embeddings) | OpenAI | 1536                | 53.02 | 52.0      | 43.35 | 69.56              | 64.31          | 54.28     | 45.68      |
| [text2vec-base](https://huggingface.co/shibing624/text2vec-base-chinese)                                 | 个人     | 768                 | 47.63 | 38.79     | 43.41 | 67.41              | 62.19          | 49.45     | 37.66      |
| [text2vec-large](https://huggingface.co/GanymedeNil/text2vec-large-chinese)                              | 个人     | 1024                | 47.36 | 41.94     | 44.97 | 70.86              | 60.66          | 49.16     | 30.02      |

## FAQ

<details>
  <summary>1. Why does the model have so good generalization performance, and can be used to many task scenarios out of the box?</summary>

<!-- ### Why does the model have so good generalization performance, and can be used to many task scenarios out of the box? -->

The excellent generalization ability of the model comes from the diversity of pre-training data, as well as the design of different optimization objectives for multi-task scenarios when pre-training the model.

Specifically, the mainly technical features:

1) The first is large-scale weak label contrastive learning. Industry experience shows that out-of-the-box language models perform poorly on Embedding-related tasks. However, due to the high cost of supervised data annotation and acquisition, large-scale, high-quality weak label learning has become an optional technical route. By extracting weak labels from semi-structured data such as forums, news, Q&A communities, and encyclopedias on the Internet, and using large models to perform low-quality filtering, 1 billion-level weakly supervised text pair data is obtained.

2) The second is high-quality supervised learning. We have collected and compiled a large-scale open source annotated sentence pair data set, including a total of 30 million sentence pair samples in encyclopedia, education, finance, medical care, law, news, academia and other fields. At the same time, we mine hard-to-negative sample pairs and use contrastive learning to better optimize the model.

3) The last step is the optimization of retrieval tasks. Considering that search, question and answer, RAG and other scenarios are important application positions for the Embedding model, in order to enhance the cross-domain and cross-scenario performance of the model, we have specially optimized the model for retrieval tasks. The core lies in mining data from question and answer, retrieval and other data. Hard-to-negative samples use sparse and dense retrieval and other methods to construct a million-level hard-to-negative sample pair data set, which significantly improves the cross-domain retrieval performance of the model.

</details>

<details>
  <summary>2. Can the model be used commercially?</summary>

<!-- ### Can the model be used commercially? -->

Our model is based on the Apache-2.0 license and fully supports free commercial use.

</details>

<details>
  <summary>3. How to reproduce the MTEB evaluation?</summary>

<!-- ### How to reproduce the MTEB evaluation? -->

We provide the mteb_eval.py script in this model hub. You can run this script directly to reproduce our evaluation results.

</details>

<details>
  <summary>4. What are the follow-up plans?</summary>

<!-- ### What are the follow-up plans? -->

We will continue to work hard to provide the community with embedding models that have excellent performance, lightweight reasoning, and can be used in multiple scenarios out of the box. At the same time, we will gradually integrate embedding into the existing technology ecosystem and grow with the community!

</details>

## Contact

If you encounter any problems during use, you are welcome to go to the [discussion](https://huggingface.co/DMetaSoul/Dmeta-embedding/discussions) to make suggestions.

You can also send us an email: Zhao Zhonghao <[email protected]>, Xiao Wenbin <[email protected]>, Sun Kai <[email protected]>

At the same time, you are welcome to scan the QR code to join our WeChat group and build the AIGC technology ecosystem together!

<image src="https://huggingface.co/DMetaSoul/Dmeta-embedding/resolve/main/weixin.jpeg" style="display: block; margin-left: auto; margin-right: auto; width: 256px; height: 358px;"/>

## License

Dmeta-embedding is licensed under the Apache-2.0 License. The released models can be used for commercial purposes free of charge.