Sentence-BERT: Sentence Embeddings using Siamese BERT-Networks
Paper
•
1908.10084
•
Published
•
10
これは、訓練済みのsentence-transformersモデルです。このモデルは、文と段落を256次元の密なベクトル空間にマッピングし、意味的テキスト類似性、意味検索、言い換えマイニング、テキスト分類、クラスタリングなどに使用できます。
SentenceTransformer(
(0): Transformer({'max_seq_length': 2048, 'do_lower_case': False, 'architecture': 'Gemma3TextModel'})
(1): Pooling({'word_embedding_dimension': 256, '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})
)
まず、Sentence Transformersライブラリをインストールします:
pip install -U sentence-transformers
次に、このモデルをロードして推論を実行できます。
from sentence_transformers import SentenceTransformer
# 🤗 Hubからダウンロード
model = SentenceTransformer("sentence_transformers_model_id")
# 推論を実行
sentences = [
'Comcast Class A shares were up 8 cents at $30.50 in morning trading on the Nasdaq Stock Market.',
'The stock rose 48 cents to $30 yesterday in Nasdaq Stock Market trading.',
'Malaysia: Chinese satellite found object in ocean',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 256]
# 埋め込みベクトルの類似度スコアを取得
similarities = model.similarity(embeddings, embeddings)
print(similarities)
# tensor([[1.0000, 0.5752, 0.2980],
# [0.5752, 1.0000, 0.2161],
# [0.2980, 0.2161, 1.0000]])
| メトリクス | 値 |
|---|---|
| pearson_cosine | 0.464 |
| spearman_cosine | 0.4595 |
sentence_0, sentence_1, label| sentence_0 | sentence_1 | label | |
|---|---|---|---|
| 型 | string | string | float |
| 詳細 |
|
|
|
| sentence_0 | sentence_1 | label |
|---|---|---|
Forecasters said warnings might go up for Cuba later Thursday. |
Watches or warnings could be issued for eastern Cuba later on Thursday. |
0.8 |
Death toll in Lebanon bombings rises to 47 |
1 suspect arrested after Lebanon car bombings kill 45 |
0.5599999904632569 |
Three dogs running on a racetrack. |
Three dogs round a bend at a racetrack. |
0.9600000381469727 |
CosineSimilarityLoss 以下のパラメータを使用:{
"loss_fct": "torch.nn.modules.loss.MSELoss"
}
eval_strategy: stepsper_device_train_batch_size: 16per_device_eval_batch_size: 16multi_dataset_batch_sampler: round_robinoverwrite_output_dir: Falsedo_predict: Falseeval_strategy: stepsprediction_loss_only: Trueper_device_train_batch_size: 16per_device_eval_batch_size: 16per_gpu_train_batch_size: Noneper_gpu_eval_batch_size: Nonegradient_accumulation_steps: 1eval_accumulation_steps: Nonetorch_empty_cache_steps: Nonelearning_rate: 5e-05weight_decay: 0.0adam_beta1: 0.9adam_beta2: 0.999adam_epsilon: 1e-08max_grad_norm: 1num_train_epochs: 3max_steps: -1lr_scheduler_type: linearlr_scheduler_kwargs: {}warmup_ratio: 0.0warmup_steps: 0log_level: passivelog_level_replica: warninglog_on_each_node: Truelogging_nan_inf_filter: Truesave_safetensors: Truesave_on_each_node: Falsesave_only_model: Falserestore_callback_states_from_checkpoint: Falseno_cuda: Falseuse_cpu: Falseuse_mps_device: Falseseed: 42data_seed: Nonejit_mode_eval: Falseuse_ipex: Falsebf16: Falsefp16: Falsefp16_opt_level: O1half_precision_backend: autobf16_full_eval: Falsefp16_full_eval: Falsetf32: Nonelocal_rank: 0ddp_backend: Nonetpu_num_cores: Nonetpu_metrics_debug: Falsedebug: []dataloader_drop_last: Falsedataloader_num_workers: 0dataloader_prefetch_factor: Nonepast_index: -1disable_tqdm: Falseremove_unused_columns: Truelabel_names: Noneload_best_model_at_end: Falseignore_data_skip: Falsefsdp: []fsdp_min_num_params: 0fsdp_config: {'min_num_params': 0, 'xla': False, 'xla_fsdp_v2': False, 'xla_fsdp_grad_ckpt': False}fsdp_transformer_layer_cls_to_wrap: Noneaccelerator_config: {'split_batches': False, 'dispatch_batches': None, 'even_batches': True, 'use_seedable_sampler': True, 'non_blocking': False, 'gradient_accumulation_kwargs': None}parallelism_config: Nonedeepspeed: Nonelabel_smoothing_factor: 0.0optim: adamw_torch_fusedoptim_args: Noneadafactor: Falsegroup_by_length: Falselength_column_name: lengthddp_find_unused_parameters: Noneddp_bucket_cap_mb: Noneddp_broadcast_buffers: Falsedataloader_pin_memory: Truedataloader_persistent_workers: Falseskip_memory_metrics: Trueuse_legacy_prediction_loop: Falsepush_to_hub: Falseresume_from_checkpoint: Nonehub_model_id: Nonehub_strategy: every_savehub_private_repo: Nonehub_always_push: Falsehub_revision: Nonegradient_checkpointing: Falsegradient_checkpointing_kwargs: Noneinclude_inputs_for_metrics: Falseinclude_for_metrics: []eval_do_concat_batches: Truefp16_backend: autopush_to_hub_model_id: Nonepush_to_hub_organization: Nonemp_parameters: auto_find_batch_size: Falsefull_determinism: Falsetorchdynamo: Noneray_scope: lastddp_timeout: 1800torch_compile: Falsetorch_compile_backend: Nonetorch_compile_mode: Noneinclude_tokens_per_second: Falseinclude_num_input_tokens_seen: Falseneftune_noise_alpha: Noneoptim_target_modules: Nonebatch_eval_metrics: Falseeval_on_start: Falseuse_liger_kernel: Falseliger_kernel_config: Noneeval_use_gather_object: Falseaverage_tokens_across_devices: Falseprompts: Nonebatch_sampler: batch_samplermulti_dataset_batch_sampler: round_robinrouter_mapping: {}learning_rate_mapping: {}| エポック | ステップ | 訓練損失 | spearman_cosine |
|---|---|---|---|
| 1.0 | 360 | - | 0.2967 |
| 1.3889 | 500 | 0.11 | 0.3338 |
| 2.0 | 720 | - | 0.3665 |
| 2.7778 | 1000 | 0.0857 | 0.4101 |
| 3.0 | 1080 | - | 0.4595 |
@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",
}