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Model: inkoziev/sbert_pq Source: Original Platform
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1_Pooling/config.json
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1_Pooling/config.json
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{
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"word_embedding_dimension": 312,
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"pooling_mode_cls_token": false,
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"pooling_mode_mean_tokens": true,
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"pooling_mode_max_tokens": false,
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"pooling_mode_mean_sqrt_len_tokens": false
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}
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README.md
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README.md
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---
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pipeline_tag: sentence-similarity
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tags:
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- sentence-transformers
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- feature-extraction
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- sentence-similarity
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- transformers
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language: ru
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license: unlicense
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widget:
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- source_sentence: "Кошка ловит мышку."
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sentences: ["Кто ловит мышку?", "Где живет кошка?", "Как мышку зовут?"]
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---
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# SBERT_PQ
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Это [sentence-transformers](https://www.SBERT.net) модель, предназначенная
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для определения релевантности короткого текста (преимущественно одно предложение длиной до 10-15 слов) и вопроса.
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Модель вычисляет для текста и вопроса векторы размерностью 312. Косинус угла между этими векторами
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дает оценку того, содержит ли текст ответ на заданный вопрос. В [проекте диалоговой системы](https://github.com/Koziev/chatbot)
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она используется для семантического поиска записей в базе фактов по заданному собеседником вопросу.
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# Скорость и точность
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Модель основана на [cointegrated/rubert-tiny2](https://huggingface.co/cointegrated/rubert-tiny2).
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Она имеет очень небольшой размер и быстро выполняет инференс даже на CPU.
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Максимальное значение метрики cossim_f1 на тестовой выборке (10% датасета) равно **0.986**.
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При использовании модели sberbank-ai/ruBert-base в качестве базовой, максимум cossim_f1 составляет **0.992**.
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## Использование с библиотекой (Sentence-Transformers)
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Необходимо установить [sentence-transformers](https://www.SBERT.net):
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```
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pip install -U sentence-transformers
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```
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Чтобы определить релевантность в одной паре "текст-вопрос", можно использовать такой код:
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```
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import sentence_transformers
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sentences = ["Кошка ловит мышку.", "Чем занята кошка?"]
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model = sentence_transformers.SentenceTransformer('inkoziev/sbert_pq')
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embeddings = model.encode(sentences)
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s = sentence_transformers.util.cos_sim(a=embeddings[0], b=embeddings[1])
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print('text={} question={} cossim={}'.format(sentences[0], sentences[1], s))
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```
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## Контакты и цитирование
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```
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@MISC{rugpt_chitchat,
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author = {Ilya Koziev},
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title = {Texts & Questions Relevancy Model},
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url = {https://huggingface.co/inkoziev/sbert_pq},
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year = 2022
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}
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```
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config.json
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config.json
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{
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"_name_or_path": "cointegrated/rubert-tiny2",
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"architectures": [
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"BertModel"
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],
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"attention_probs_dropout_prob": 0.1,
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"classifier_dropout": null,
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"emb_size": 312,
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"gradient_checkpointing": false,
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"hidden_act": "gelu",
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"hidden_dropout_prob": 0.1,
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"hidden_size": 312,
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"initializer_range": 0.02,
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"intermediate_size": 600,
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"layer_norm_eps": 1e-12,
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"max_position_embeddings": 2048,
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"model_type": "bert",
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"num_attention_heads": 12,
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"num_hidden_layers": 3,
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"pad_token_id": 0,
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"position_embedding_type": "absolute",
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"torch_dtype": "float32",
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"transformers_version": "4.21.1",
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"type_vocab_size": 2,
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"use_cache": true,
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"vocab_size": 83828
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}
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config_sentence_transformers.json
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{
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"__version__": {
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"sentence_transformers": "2.2.2",
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"transformers": "4.21.1",
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"pytorch": "1.10.0+cu111"
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}
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}
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modules.json
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modules.json
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[
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{
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"idx": 0,
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"name": "0",
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"path": "",
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"type": "sentence_transformers.models.Transformer"
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},
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{
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"idx": 1,
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"name": "1",
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"path": "1_Pooling",
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"type": "sentence_transformers.models.Pooling"
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}
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]
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pytorch_model.bin
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version https://git-lfs.github.com/spec/v1
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oid sha256:bf69095a3176f508166be9dbeb0dd20e1d7645d0ab0aefc64364c35c714e876b
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size 116808317
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sentence_bert_config.json
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sentence_bert_config.json
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{
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"max_seq_length": 2048,
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"do_lower_case": false
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}
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special_tokens_map.json
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{
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"cls_token": "[CLS]",
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"mask_token": "[MASK]",
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"pad_token": "[PAD]",
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"sep_token": "[SEP]",
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"unk_token": "[UNK]"
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}
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tokenizer.json
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tokenizer_config.json
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{
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"cls_token": "[CLS]",
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"do_basic_tokenize": true,
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"do_lower_case": false,
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"mask_token": "[MASK]",
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"model_max_length": 2048,
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"name_or_path": "cointegrated/rubert-tiny2",
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"never_split": null,
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"pad_token": "[PAD]",
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"sep_token": "[SEP]",
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"special_tokens_map_file": null,
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"strip_accents": null,
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"tokenize_chinese_chars": true,
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"tokenizer_class": "BertTokenizer",
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"unk_token": "[UNK]"
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}
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