overfitting-co/A2P-constrastive-all

SentenceTransformer based on sentence-transformers/all-MiniLM-L6-v2

This is a sentence-transformers model finetuned from sentence-transformers/all-MiniLM-L6-v2. It maps sentences & paragraphs to a 384-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.

Model Details

Model Description

• Model Type: Sentence Transformer
• Base model: sentence-transformers/all-MiniLM-L6-v2
• Maximum Sequence Length: 256 tokens
• Output Dimensionality: 384 tokens
• Similarity Function: Cosine Similarity

Model Sources

• Documentation: Sentence Transformers Documentation
• Repository: Sentence Transformers on GitHub
• Hugging Face: Sentence Transformers on Hugging Face

Full Model Architecture

SentenceTransformer(
  (0): Transformer({'max_seq_length': 256, 'do_lower_case': False}) with Transformer model: BertModel 
  (1): Pooling({'word_embedding_dimension': 384, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False, 'pooling_mode_weightedmean_tokens': False, 'pooling_mode_lasttoken': False, 'include_prompt': True})
  (2): Normalize()
)

Usage

Direct Usage (Sentence Transformers)

First install the Sentence Transformers library:

pip install -U sentence-transformers

Then you can load this model and run inference.

from sentence_transformers import SentenceTransformer

# Download from the 🤗 Hub
model = SentenceTransformer("overfitting-co/A2P-constrastive-all")
# Run inference
sentences = [
    'Khaosan Road',
    'Reserved',
    'Adventurous',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 384]

# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities.shape)
# [3, 3]

Evaluation

Metrics

Binary Classification

• Evaluated with BinaryClassificationEvaluator

Metric	Value
cosine_accuracy	0.9574
cosine_accuracy_threshold	0.8163
cosine_f1	0.958
cosine_f1_threshold	0.8131
cosine_precision	0.9682
cosine_recall	0.9481
cosine_ap	0.9909
dot_accuracy	0.9574
dot_accuracy_threshold	0.8163
dot_f1	0.958
dot_f1_threshold	0.8131
dot_precision	0.9682
dot_recall	0.9481
dot_ap	0.9909
manhattan_accuracy	0.9609
manhattan_accuracy_threshold	9.5648
manhattan_f1	0.9619
manhattan_f1_threshold	9.5648
manhattan_precision	0.9619
manhattan_recall	0.9619
manhattan_ap	0.9909
euclidean_accuracy	0.9574
euclidean_accuracy_threshold	0.6061
euclidean_f1	0.958
euclidean_f1_threshold	0.6114
euclidean_precision	0.9682
euclidean_recall	0.9481
euclidean_ap	0.9909
max_accuracy	0.9609
max_accuracy_threshold	9.5648
max_f1	0.9619
max_f1_threshold	9.5648
max_precision	0.9682
max_recall	0.9619
max_ap	0.9909

Binary Classification

• Dataset: test
• Evaluated with BinaryClassificationEvaluator

Metric	Value
cosine_accuracy	0.9592
cosine_accuracy_threshold	0.7969
cosine_f1	0.9591
cosine_f1_threshold	0.7969
cosine_precision	0.9574
cosine_recall	0.9609
cosine_ap	0.9878
dot_accuracy	0.9592
dot_accuracy_threshold	0.7969
dot_f1	0.9591
dot_f1_threshold	0.7969
dot_precision	0.9574
dot_recall	0.9609
dot_ap	0.9878
manhattan_accuracy	0.9557
manhattan_accuracy_threshold	9.8085
manhattan_f1	0.9558
manhattan_f1_threshold	9.917
manhattan_precision	0.9507
manhattan_recall	0.9609
manhattan_ap	0.9866
euclidean_accuracy	0.9592
euclidean_accuracy_threshold	0.6373
euclidean_f1	0.9591
euclidean_f1_threshold	0.6373
euclidean_precision	0.9574
euclidean_recall	0.9609
euclidean_ap	0.9878
max_accuracy	0.9592
max_accuracy_threshold	9.8085
max_f1	0.9591
max_f1_threshold	9.917
max_precision	0.9574
max_recall	0.9609
max_ap	0.9878

Training Details

Training Dataset

Unnamed Dataset

• Size: 4,505 training samples
• Columns: sentence_0, sentence_1, and label
• Approximate statistics based on the first 1000 samples:

  	sentence_0	sentence_1	label
  type	string	string	int
  details	min: 3 tokens mean: 6.49 tokens max: 24 tokens	min: 3 tokens mean: 3.79 tokens max: 8 tokens	0: ~52.30% 1: ~47.70%

• Samples:

  sentence_0	sentence_1	label
  N Seoul Tower	Laid-back	0
  Magere Brug	Romantic	1
  Polynesian Cultural Center	Adventurous	1

• Loss: OnlineContrastiveLoss

Training Hyperparameters

Non-Default Hyperparameters

• per_device_train_batch_size: 32
• per_device_eval_batch_size: 32
• num_train_epochs: 5
• multi_dataset_batch_sampler: round_robin

All Hyperparameters

Click to expand

• overwrite_output_dir: False
• do_predict: False
• eval_strategy: no
• prediction_loss_only: True
• per_device_train_batch_size: 32
• per_device_eval_batch_size: 32
• per_gpu_train_batch_size: None
• per_gpu_eval_batch_size: None
• gradient_accumulation_steps: 1
• eval_accumulation_steps: None
• torch_empty_cache_steps: None
• learning_rate: 5e-05
• weight_decay: 0.0
• adam_beta1: 0.9
• adam_beta2: 0.999
• adam_epsilon: 1e-08
• max_grad_norm: 1
• num_train_epochs: 5
• max_steps: -1
• lr_scheduler_type: linear
• lr_scheduler_kwargs: {}
• warmup_ratio: 0.0
• warmup_steps: 0
• log_level: passive
• log_level_replica: warning
• log_on_each_node: True
• logging_nan_inf_filter: True
• save_safetensors: True
• save_on_each_node: False
• save_only_model: False
• restore_callback_states_from_checkpoint: False
• no_cuda: False
• use_cpu: False
• use_mps_device: False
• seed: 42
• data_seed: None
• jit_mode_eval: False
• use_ipex: False
• bf16: False
• fp16: False
• fp16_opt_level: O1
• half_precision_backend: auto
• bf16_full_eval: False
• fp16_full_eval: False
• tf32: None
• local_rank: 0
• ddp_backend: None
• tpu_num_cores: None
• tpu_metrics_debug: False
• debug: []
• dataloader_drop_last: False
• dataloader_num_workers: 0
• dataloader_prefetch_factor: None
• past_index: -1
• disable_tqdm: False
• remove_unused_columns: True
• label_names: None
• load_best_model_at_end: False
• ignore_data_skip: False
• fsdp: []
• fsdp_min_num_params: 0
• fsdp_config: {'min_num_params': 0, 'xla': False, 'xla_fsdp_v2': False, 'xla_fsdp_grad_ckpt': False}
• fsdp_transformer_layer_cls_to_wrap: None
• accelerator_config: {'split_batches': False, 'dispatch_batches': None, 'even_batches': True, 'use_seedable_sampler': True, 'non_blocking': False, 'gradient_accumulation_kwargs': None}
• deepspeed: None
• label_smoothing_factor: 0.0
• optim: adamw_torch
• optim_args: None
• adafactor: False
• group_by_length: False
• length_column_name: length
• ddp_find_unused_parameters: None
• ddp_bucket_cap_mb: None
• ddp_broadcast_buffers: False
• dataloader_pin_memory: True
• dataloader_persistent_workers: False
• skip_memory_metrics: True
• use_legacy_prediction_loop: False
• push_to_hub: False
• resume_from_checkpoint: None
• hub_model_id: None
• hub_strategy: every_save
• hub_private_repo: False
• hub_always_push: False
• gradient_checkpointing: False
• gradient_checkpointing_kwargs: None
• include_inputs_for_metrics: False
• eval_do_concat_batches: True
• fp16_backend: auto
• push_to_hub_model_id: None
• push_to_hub_organization: None
• mp_parameters:
• auto_find_batch_size: False
• full_determinism: False
• torchdynamo: None
• ray_scope: last
• ddp_timeout: 1800
• torch_compile: False
• torch_compile_backend: None
• torch_compile_mode: None
• dispatch_batches: None
• split_batches: None
• include_tokens_per_second: False
• include_num_input_tokens_seen: False
• neftune_noise_alpha: None
• optim_target_modules: None
• batch_eval_metrics: False
• eval_on_start: False
• eval_use_gather_object: False
• batch_sampler: batch_sampler
• multi_dataset_batch_sampler: round_robin

Training Logs

Epoch	Step	Training Loss	max_ap	test_max_ap
1.0	141	-	0.6780	-
2.0	282	-	0.7538	-
3.0	423	-	0.8064	-
3.5461	500	6.7404	-	-
4.0	564	-	0.9751	-
5.0	705	-	0.9909	0.9878

Framework Versions

• Python: 3.10.12
• Sentence Transformers: 3.2.1
• Transformers: 4.44.2
• PyTorch: 2.5.0+cu121
• Accelerate: 0.34.2
• Datasets: 3.1.0
• Tokenizers: 0.19.1

Citation

BibTeX

Sentence Transformers

@inproceedings{reimers-2019-sentence-bert,
    title = "Sentence-BERT: Sentence Embeddings using Siamese BERT-Networks",
    author = "Reimers, Nils and Gurevych, Iryna",
    booktitle = "Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing",
    month = "11",
    year = "2019",
    publisher = "Association for Computational Linguistics",
    url = "https://arxiv.org/abs/1908.10084",
}