Add trained models (POS tagger and word segmentation)

.gitattributes

@@ -42,5 +42,6 @@ references/2021.naacl.nguyen/paper.pdf filter=lfs diff=lfs merge=lfs -text
 references/2021.naacl.nguyen/source/JointModel.pdf filter=lfs diff=lfs merge=lfs -text
 *.pdf filter=lfs diff=lfs merge=lfs -text
 *.crfsuite filter=lfs diff=lfs merge=lfs -text
+*.crf filter=lfs diff=lfs merge=lfs -text
 *.mco filter=lfs diff=lfs merge=lfs -text
 *.jar filter=lfs diff=lfs merge=lfs -text

.gitignore

@@ -26,10 +26,10 @@ per_tag_metrics.png
 # Temporary model files (main model is tracked via Git LFS)
 *.crfsuite
 !pos_tagger.crfsuite
+!models/**/*.crfsuite
 
 # Logs
 *.log
 wandb/
 
-models.claude
 .claude

models/pos_tagger/20260131_000000/metadata.yaml

@@ -0,0 +1,44 @@
+# POS Tagger Model Metadata
+# Auto-generated during training
+
+model:
+  name: Vietnamese POS Tagger
+  version: "20260131_000000"
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+
+performance:
+  test_accuracy: 0.9282
+  tags:
+    - ADJ
+    - ADP
+    - ADV
+    - AUX
+    - CCONJ
+    - DET
+    - NOUN
+    - NUM
+    - PART
+    - PRON
+    - PROPN
+    - PUNCT
+    - SCONJ
+    - VERB
+    - X
+
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+
+created_at: "2026-01-31"
+author: undertheseanlp

models/pos_tagger/20260131_000000/model.crfsuite

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models/pos_tagger/baseline-pos-10iter/metadata.yaml

@@ -0,0 +1,26 @@
+model:
+  name: Vietnamese POS Tagger
+  version: baseline-pos-10iter
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 68.24
+performance:
+  test_accuracy: 0.7837
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 15:36:03'
+author: undertheseanlp

models/pos_tagger/baseline-pos-10iter/model.crfsuite

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models/pos_tagger/baseline-python-crfsuite-10iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: baseline-python-crfsuite-10iter
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 67.69
+performance:
+  test_accuracy: 0.7837
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 15:56:21'
+author: undertheseanlp

models/pos_tagger/baseline-python-crfsuite-10iter/model.crfsuite

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models/pos_tagger/baseline-underthesea-10iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: baseline-underthesea-10iter
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 59.02
+performance:
+  test_accuracy: 0.7542
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 15:55:02'
+author: undertheseanlp

models/pos_tagger/baseline-underthesea-10iter/model.crf

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models/pos_tagger/crfsuite-rs/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: crfsuite-rs
+  type: CRF (Conditional Random Field)
+  framework: crfsuite-rs
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+  duration_seconds: 165.75
+performance:
+  test_accuracy: 0.9589
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 07:32:56'
+author: undertheseanlp

models/pos_tagger/crfsuite-rs/model.crfsuite

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models/pos_tagger/fast-exp-10iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: fast-exp-10iter
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 57.44
+performance:
+  test_accuracy: 0.7553
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 16:10:30'
+author: undertheseanlp

models/pos_tagger/fast-exp-10iter/model.crf

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models/pos_tagger/final-baseline-10iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: final-baseline-10iter
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 59.49
+performance:
+  test_accuracy: 0.7542
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 16:15:11'
+author: undertheseanlp

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models/pos_tagger/optimized-pos/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: optimized-pos
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
+  duration_seconds: 349.17
+performance:
+  test_accuracy: 0.9598
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 15:23:20'
+author: undertheseanlp

models/pos_tagger/optimized-pos/model.crf

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models/pos_tagger/parallel-10iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: parallel-10iter
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 61.77
+performance:
+  test_accuracy: 0.7542
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 16:19:29'
+author: undertheseanlp

models/pos_tagger/parallel-10iter/model.crf

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models/pos_tagger/python-crfsuite-v1/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: python-crfsuite-v1
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
+  duration_seconds: 290.43
+performance:
+  test_accuracy: 0.9598
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 11:00:59'
+author: undertheseanlp

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models/pos_tagger/python-crfsuite/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: python-crfsuite
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+  duration_seconds: 148.29
+performance:
+  test_accuracy: 0.9589
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 07:30:01'
+author: undertheseanlp

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models/pos_tagger/simd-avx2-10iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: simd-avx2-10iter
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 65.04
+performance:
+  test_accuracy: 0.7542
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 16:04:12'
+author: undertheseanlp

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models/pos_tagger/simd-v1/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: simd-v1
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 56.64
+performance:
+  test_accuracy: 0.7542
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 15:33:20'
+author: undertheseanlp

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models/pos_tagger/simd-v2/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: simd-v2
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 10
+  duration_seconds: 59.18
+performance:
+  test_accuracy: 0.7542
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 15:34:37'
+author: undertheseanlp

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models/pos_tagger/test-200iter-crfsuite/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: test-200iter-crfsuite
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
+  duration_seconds: 304.92
+performance:
+  test_accuracy: 0.9598
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 16:31:06'
+author: undertheseanlp

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models/pos_tagger/test-200iter/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: test-200iter
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
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+  test_accuracy: 0.9597
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 16:25:50'
+author: undertheseanlp

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models/pos_tagger/test-crfsuite-style/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: test-crfsuite-style
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+  duration_seconds: 461.7
+performance:
+  test_accuracy: 0.9362
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 08:45:28'
+author: undertheseanlp

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models/pos_tagger/test-speed/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: test-speed
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+  duration_seconds: 217.03
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+  test_accuracy: 0.9362
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 08:32:29'
+author: undertheseanlp

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models/pos_tagger/underthesea-core-optimized/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: underthesea-core-optimized
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+  duration_seconds: 194.48
+performance:
+  test_accuracy: 0.9362
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 07:52:48'
+author: undertheseanlp

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models/pos_tagger/underthesea-core-v2/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: underthesea-core-v2
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
+  duration_seconds: 351.01
+performance:
+  test_accuracy: 0.9556
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 08:08:10'
+author: undertheseanlp

models/pos_tagger/underthesea-core-v2/model.crf

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+size 26618990

models/pos_tagger/underthesea-core-v3/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: underthesea-core-v3
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
+  duration_seconds: 544.99
+performance:
+  test_accuracy: 0.9598
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 10:52:59'
+author: undertheseanlp

models/pos_tagger/underthesea-core-v3/model.crf

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models/pos_tagger/underthesea-core-v4/metadata.yaml

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+model:
+  name: Vietnamese POS Tagger
+  version: underthesea-core-v4
+  type: CRF (Conditional Random Field)
+  framework: underthesea-core
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  val_sentences: 859
+  test_sentences: 859
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 200
+  duration_seconds: 479.03
+performance:
+  test_accuracy: 0.9596
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/pos_tagger.yaml
+created_at: '2026-01-31 11:58:34'
+author: undertheseanlp

models/pos_tagger/underthesea-core-v4/model.crf

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models/word_segmentation/20260131_000000/metadata.yaml

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+# Word Segmentation Model Metadata
+# Auto-generated during training
+
+model:
+  name: Vietnamese Word Segmentation
+  version: "20260131_000000"
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+  tagging_scheme: BIO
+
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  train_syllables: 563134
+  val_sentences: 859
+  val_syllables: 27170
+  test_sentences: 859
+  test_syllables: 26132
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+
+performance:
+  syllable_accuracy: 0.9890
+  syllable_f1: 0.9890
+  word_precision: 0.9802
+  word_recall: 0.9801
+  word_f1: 0.9801
+
+files:
+  model: model.crfsuite
+  config: ../../../configs/word_segmentation.yaml
+
+created_at: "2026-01-31"
+author: undertheseanlp

models/word_segmentation/20260131_000000/model.crfsuite

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+size 1093088

models/word_segmentation/20260131_041701/examples.output

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+Trên thế_giới , giá_vàng đang được giao_dịch ở mức 5.068 USD / ounce , mất thêm khoảng 280 đồng / USD so với phiên sáng_. Nếu tính trong một phiên , giá_vàng mất tổng_cộng gần 500 USD / ounce ( tương_đương mức giảm khoảng 15 triệu đồng ) ._Đây là mức giảm kỷ_lục trong lịch_sử biến_động của kim_loại quý này .
+Hiện_giá vàng thế_giới quy_đổi theo tỷ_giá Vietcombank ( chưa bao_gồm thuế , phí ) vào_khoảng 160,4 triệu đồng /_lượng , thấp hơn vàng trong nước gần 20 triệu đồng /_lượng .

models/word_segmentation/20260131_041701/metadata.yaml

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+model:
+  name: Vietnamese Word Segmentation
+  version: '20260131_041701'
+  type: CRF (Conditional Random Field)
+  framework: python-crfsuite
+  tagging_scheme: BIO
+training:
+  dataset: undertheseanlp/UDD-1
+  train_sentences: 18282
+  train_syllables: 563134
+  val_sentences: 859
+  val_syllables: 27170
+  test_sentences: 859
+  test_syllables: 26132
+  hyperparameters:
+    c1: 1.0
+    c2: 0.001
+    max_iterations: 100
+  duration_seconds: 103.65
+performance:
+  syllable_accuracy: 0.989
+  syllable_f1: 0.989
+  word_precision: 0.9802
+  word_recall: 0.9801
+  word_f1: 0.9801
+environment:
+  platform: Linux
+  cpu_model: AMD EPYC 7713 64-Core Processor
+  python_version: 3.12.3
+files:
+  model: model.crfsuite
+  config: ../../../configs/word_segmentation.yaml
+created_at: '2026-01-31 04:18:45'
+author: undertheseanlp