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1_Pooling/config.json ADDED
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+ "word_embedding_dimension": 1024,
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README.md CHANGED
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  ---
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- license: apache-2.0
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  tags:
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- - mteb
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- language:
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- - zh
 
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  library_name: sentence-transformers
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  ---
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- <h2 align="left">Yuan-embedding-2.0-zh</h2>
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- Yuan-embedding-2.0-zh 是专门为中文文本检索任务设计的嵌入模型。我们在[Yuan-embedding-1.0](https://huggingface.co/IEITYuan/Yuan-embedding-1.0)的基础上,针对Retrieval任务与Reranking任务进行了进一步优化。主要工作如下:
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- - 数据增强
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- - Hard negative sampling:利用Rerank模型与LLM进行双重评估,筛选出高质量正负样本
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- - LLM合成数据:利用[Yuan2-M32](https://huggingface.co/IEITYuan/Yuan2-M32)针对训练数据query进行LLM重写
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- - 损失函数设计
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- - Multi-Task loss
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- - Matryoshka Representation Learning
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- - Retrieval任务使用InfoNCE with in-batch-negative
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- - 针对Reranking任务设计Margin-Adaptive Pairwise Ranking Loss
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-
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- <h2 align="left">Usage</h2>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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- ```bash
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- pip install -U sentence-transformers==3.4.1
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  ```
 
 
 
 
 
 
 
 
 
 
 
 
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- 使用示例:
 
 
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  ```python
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  from sentence_transformers import SentenceTransformer
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- model = SentenceTransformer("IEIYuan/Yuan-embedding-2.0-zh")
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- sentences_1 = ["样例数据-1", "样例数据-2"]
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- sentences_2 = ["样例数据-3", "样例数据-4"]
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- embeddings_1 = model.encode(sentences_1, normalize_embeddings=True)
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- embeddings_2 = model.encode(sentences_2, normalize_embeddings=True)
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- similarity = embeddings_1 @ embeddings_2.T
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- print(similarity)
 
 
 
 
 
 
 
 
 
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  ```
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ---
 
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  tags:
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+ - sentence-transformers
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+ - sentence-similarity
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+ - feature-extraction
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+ pipeline_tag: sentence-similarity
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  library_name: sentence-transformers
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  ---
 
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+ # SentenceTransformer
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+ This is a [sentence-transformers](https://www.SBERT.net) model trained. It maps sentences & paragraphs to a 1792-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.
 
 
 
 
 
 
 
 
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+ ## Model Details
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+
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+ ### Model Description
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+ - **Model Type:** Sentence Transformer
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+ <!-- - **Base model:** [Unknown](https://huggingface.co/unknown) -->
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+ - **Maximum Sequence Length:** 512 tokens
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+ - **Output Dimensionality:** 1792 dimensions
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+ - **Similarity Function:** Cosine Similarity
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+ <!-- - **Training Dataset:** Unknown -->
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+ <!-- - **Language:** Unknown -->
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+ <!-- - **License:** Unknown -->
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+
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+ ### Model Sources
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+
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+ - **Documentation:** [Sentence Transformers Documentation](https://sbert.net)
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+ - **Repository:** [Sentence Transformers on GitHub](https://github.com/UKPLab/sentence-transformers)
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+ - **Hugging Face:** [Sentence Transformers on Hugging Face](https://huggingface.co/models?library=sentence-transformers)
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+
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+ ### Full Model Architecture
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  ```
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+ SentenceTransformer(
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+ (0): Transformer({'max_seq_length': 512, 'do_lower_case': False}) with Transformer model: BertModel
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+ (1): Pooling({'word_embedding_dimension': 1024, '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})
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+ (2): Dense({'in_features': 1024, 'out_features': 1792, 'bias': True, 'activation_function': 'torch.nn.modules.linear.Identity'})
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+ )
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+ ```
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+
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+ ## Usage
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+
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+ ### Direct Usage (Sentence Transformers)
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+
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+ First install the Sentence Transformers library:
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+ ```bash
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+ pip install -U sentence-transformers
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+ ```
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+ Then you can load this model and run inference.
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  ```python
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  from sentence_transformers import SentenceTransformer
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+ # Download from the 🤗 Hub
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+ model = SentenceTransformer("sentence_transformers_model_id")
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+ # Run inference
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+ sentences = [
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+ 'The weather is lovely today.',
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+ "It's so sunny outside!",
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+ 'He drove to the stadium.',
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+ ]
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+ embeddings = model.encode(sentences)
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+ print(embeddings.shape)
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+ # [3, 1792]
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+
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+ # Get the similarity scores for the embeddings
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+ similarities = model.similarity(embeddings, embeddings)
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+ print(similarities.shape)
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+ # [3, 3]
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  ```
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+
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+ <!--
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+ ### Direct Usage (Transformers)
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+
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+ <details><summary>Click to see the direct usage in Transformers</summary>
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+
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+ </details>
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+ -->
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+
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+ <!--
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+ ### Downstream Usage (Sentence Transformers)
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+
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+ You can finetune this model on your own dataset.
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+
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+ <details><summary>Click to expand</summary>
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+
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+ </details>
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+ -->
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+
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+ <!--
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+ ### Out-of-Scope Use
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+
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+ *List how the model may foreseeably be misused and address what users ought not to do with the model.*
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+ -->
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+
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+ <!--
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+ ## Bias, Risks and Limitations
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+
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+ *What are the known or foreseeable issues stemming from this model? You could also flag here known failure cases or weaknesses of the model.*
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+ -->
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+
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+ <!--
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+ ### Recommendations
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+
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+ *What are recommendations with respect to the foreseeable issues? For example, filtering explicit content.*
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+ -->
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+
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+ ## Training Details
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+
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+ ### Framework Versions
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+ - Python: 3.12.8
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+ - Sentence Transformers: 3.4.1
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+ - Transformers: 4.47.1
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+ - PyTorch: 2.5.1+cu124
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+ - Accelerate: 1.2.1
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+ - Datasets: 3.3.2
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+ - Tokenizers: 0.21.0
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+
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+ ## Citation
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+
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+ ### BibTeX
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+
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+ <!--
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+ ## Glossary
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+
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+ *Clearly define terms in order to be accessible across audiences.*
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+ -->
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+
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+ <!--
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+ ## Model Card Authors
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+
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+ *Lists the people who create the model card, providing recognition and accountability for the detailed work that goes into its construction.*
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+ -->
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+
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+ <!--
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+ ## Model Card Contact
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+
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+ *Provides a way for people who have updates to the Model Card, suggestions, or questions, to contact the Model Card authors.*
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+ -->
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