Update README.md

README.md

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----
-license: apache-2.0
----
+---
+license: apache-2.0
+library_name: transformers
+pipeline_tag: text-generation
+base_model:
+- Qwen/Qwen3-8B
+datasets:
+- ChatTSRepo/ChatTS-Training-Dataset
+language:
+- eng
+- zh
+---
+
+# [VLDB' 25] ChatTS-8B-1103 Model
+
+<div style="display:flex;justify-content: center">
+<a href="https://github.com/NetmanAIOps/ChatTS"><img alt="github" src="https://img.shields.io/badge/Code-GitHub-blue"></a>
+<a href="https://arxiv.org/abs/2412.03104"><img alt="preprint" src="https://img.shields.io/static/v1?label=arXiv&amp;message=2412.03104&amp;color=B31B1B&amp;logo=arXiv"></a>
+</div>
+
+**[VLDB' 25] ChatTS: Aligning Time Series with LLMs via Synthetic Data for Enhanced Understanding and Reasoning**
+
+`ChatTS` focuses on **Understanding and Reasoning** about time series, much like what vision/video/audio-MLLMs do.
+
+This is a `Qwen3-8B` version of [ChatTS-14B](https://huggingface.co/bytedance-research/ChatTS-14B), with some minor bug fixes and improvements on short time series length and instructions following capabilities.
+
+## Web Demo
+The Web Demo of ChatTS is available at HuggingFace Spaces: [![Hugging Face Spaces](https://img.shields.io/badge/%F0%9F%A4%97%20ChatTS-Web%20Demo-blue)](https://huggingface.co/spaces/xiezhe22/ChatTS)
+
+## Key Features
+ChatTS is a Multimodal LLM built natively for time series as a core modality：
+- ✅ **Native support for multivariate time series**
+- ✅ **Flexible input**: Supports multivariate time series with **different lengths** and **flexible dimensionality**
+- ✅ **Conversational understanding + reasoning**:  
+  Enables interactive dialogue over time series to explore insights about time series
+- ✅ **Preserves raw numerical values**:  
+  Can answer **statistical questions**, such as _"How large is the spike at timestamp t?"_
+- ✅ **Easy integration with existing LLM pipelines**, including support for **vLLM**.
+
+### Example Application
+Here is an example of a ChatTS application, which allows users to interact with a LLM to understand and reason about time series data:
+![Chat](figures/chat_example.png)
+
+[Link to the paper](https://arxiv.org/pdf/2412.03104)
+
+[Link to the Github repository](https://github.com/NetManAIOps/ChatTS)
+
+## Usage
+- This model is fine-tuned on the QWen2.5-14B-Instruct (https://huggingface.co/Qwen/Qwen2.5-14B-Instruct) model. For more usage details, please refer to the `README.md` in the ChatTS repository.
+- An example usage of ChatTS (with `HuggingFace`):
+```python
+from transformers import AutoModelForCausalLM, AutoTokenizer, AutoProcessor
+import torch
+import numpy as np
+
+hf_model = "bytedance-research/ChatTS-14B"
+# Load the model, tokenizer and processor
+# For pre-Ampere GPUs (like V100) use `_attn_implementation='eager'`
+model = AutoModelForCausalLM.from_pretrained(hf_model, trust_remote_code=True, device_map="auto", torch_dtype='float16')
+tokenizer = AutoTokenizer.from_pretrained(hf_model, trust_remote_code=True)
+processor = AutoProcessor.from_pretrained(hf_model, trust_remote_code=True, tokenizer=tokenizer)
+# Create time series and prompts
+timeseries = np.sin(np.arange(256) / 10) * 5.0
+timeseries[100:] -= 10.0
+prompt = f"I have a time series length of 256: <ts><ts/>. Please analyze the local changes in this time series."
+# Apply Chat Template
+prompt = f"""<|im_start|>system
+You are a helpful assistant.<|im_end|><|im_start|>user
+{prompt}<|im_end|><|im_start|>assistant
+"""
+# Convert to tensor
+inputs = processor(text=[prompt], timeseries=[timeseries], padding=True, return_tensors="pt")
+# Model Generate
+outputs = model.generate(**inputs, max_new_tokens=300)
+print(tokenizer.decode(outputs[0][len(inputs['input_ids'][0]):], skip_special_tokens=True))
+```
+
+## Reproduction of Paper Results
+Please download the [legacy ChatTS-14B model](https://huggingface.co/bytedance-research/ChatTS-14B/tree/fea24f221dd13ad310b68cc5470f575647b838c6) to reproduce the results in the paper.
+
+## Reference
+- QWen3-8B (https://huggingface.co/Qwen/Qwen3-8B)
+- transformers (https://github.com/huggingface/transformers.git)
+- [ChatTS Paper](https://arxiv.org/pdf/2412.03104)
+
+
+## License
+This model is licensed under the [Apache License 2.0](LICENSE).
+
+## Cite
+```
+@article{xie2024chatts,
+  title={ChatTS: Aligning Time Series with LLMs via Synthetic Data for Enhanced Understanding and Reasoning},
+  author={Xie, Zhe and Li, Zeyan and He, Xiao and Xu, Longlong and Wen, Xidao and Zhang, Tieying and Chen, Jianjun and Shi, Rui and Pei, Dan},
+  journal={arXiv preprint arXiv:2412.03104},
+  year={2024}
+}
+```