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README.md

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----
-license: apache-2.0
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+
+---
+license: apache-2.0
+task_categories:
+- image-retrieval
+- vision-language-navigation
+tags:
+- composed-image-retrieval
+- robust-learning
+- optimal-transport
+- blip-2
+- cvpr-2026
+---
+
+<a id="top"></a>
+<div align="center">
+  <h1>(CVPR 2026) ConeSep: Cone-based Robust Noise-Unlearning Compositional Network for CIR (Model Weights)</h1>
+  <div>
+  <a target="_blank" href="https://lee-zixu.github.io/">Zixu&#160;Li</a><sup>1</sup>,
+  <a target="_blank" href="https://faculty.sdu.edu.cn/huyupeng1/zh_CN/index.htm">Yupeng&#160;Hu</a><sup>1&#9993</sup>,
+  <a target="_blank" href="https://zivchen-ty.github.io/">Zhiwei&#160;Chen</a><sup>1</sup>,
+  <a target="_blank" href="https://zh-mingyu.github.io/">Mingyu&#160;Zhang</a><sup>1</sup>,
+  <a target="_blank" href="https://zhihfu.github.io/">Zhiheng&#160;Fu</a><sup>1</sup>,
+  <a target="_blank" href="https://liqiangnie.github.io">Liqiang&#160;Nie</a><sup>2</sup>
+  </div>
+  <sup>1</sup>School of Software, Shandong University &#160&#160&#160</span>  <br>
+ <sup>2</sup>School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), &#160&#160&#160</span> 
+  <br />
+  <sup>&#9993&#160;</sup>Corresponding author&#160;&#160;</span>
+  <br/>
+  <p>
+      <a href="https://cvpr.thecvf.com/"><img src="https://img.shields.io/badge/CVPR-2026-blue.svg?style=flat-square" alt="CVPR 2026"></a>
+      <a href="https://arxiv.org/abs/coming soon"><img alt='arXiv' src="https://img.shields.io/badge/arXiv-Coming.Soon-b31b1b.svg"></a>
+      <a href="https://lee-zixu.github.io/ConeSep.github.io/"><img alt='Project Page' src="https://img.shields.io/badge/Website-orange"></a>
+      <a href="https://github.com/Lee-zixu/ConeSep"><img alt='GitHub' src="https://img.shields.io/badge/GitHub-Repository-black?style=flat-square&logo=github"></a>
+  </p>
+</div>
+
+This repository hosts the official pre-trained checkpoints for **ConeSep**, a robust noise-unlearning framework that leverages geometric boundary estimation and optimal transport to solve the Noisy Triplet Correspondence (NTC) problem in Composed Image Retrieval (CIR).
+
+---
+
+## 📌 Model Information
+
+### 1. Model Name
+**ConeSep** (Cone-based robust noisE-unlearning comPositional network) Checkpoints.
+
+### 2. Task Type & Applicable Tasks
+- **Task Type:** Composed Image Retrieval (CIR).
+- **Applicable Tasks:** Retrieving target images based on a reference image and a modification text. These weights provide unmatched robustness under varying degrees of noisy training data (Noise Triplet Correspondence).
+
+### 3. Project Introduction
+Existing Composed Image Retrieval methods struggle with the "Noisy Triplet Correspondence (NTC)" problem, leading to Modality Suppression, Negative Anchor Deficiency, and Unlearning Backlash. **ConeSep** actively perceives, structurally models, and precisely "unlearns" noise through three core modules:
+- 📐 **Geometric Fidelity Quantization (GFQ):** Estimates a noise boundary using cone space geometric separability to quantify sample fidelity.
+- 🛑 **Negative Boundary Learning (NBL):** Learns a "diagonal negative combination" for each query as an explicit semantic opposite-anchor.
+- 🎯 **Boundary-based Targeted Unlearning (BTU):** Models noisy correction as an Optimal Transport (OT) problem to execute precise unlearning without backlash on clean samples.
+
+### 4. Training Data Source & Hosted Weights
+The models were trained on the **FashionIQ** and **CIRR** datasets across different simulated noise ratios ($N \in \{0.2, 0.5, 0.8\}$). This Hugging Face repository provides the corresponding `.pt` checkpoint files organized by dataset and noise ratio:
+
+* 📂 `fashioniq/`
+    * `ConeSep-FIQ_N0.2.pt` (Trained with 20% noise)
+    * `ConeSep-FIQ_N0.5.pt` (Trained with 50% noise)
+    * `ConeSep-FIQ_N0.8.pt` (Trained with 80% noise)
+* 📂 `cirr/`
+    * `ConeSep-CIRR_N0.2.pt` (Trained with 20% noise)
+    * `ConeSep-CIRR_N0.5.pt` (Trained with 50% noise)
+    * `ConeSep-CIRR_N0.8.pt` (Trained with 80% noise)
+
+---
+
+## 🚀 Usage & Basic Inference
+
+These weights are designed to be evaluated out-of-the-box using the official [ConeSep GitHub repository](https://github.com/iLearn-Lab/CVPR26-ConeSep).
+
+### Step 1: Prepare the Environment
+Clone the GitHub repository and set up the environment:
+```bash
+git clone https://github.com/iLearn-Lab/CVPR26-ConeSep
+cd ConeSep
+conda create -n conesep python=3.8
+conda activate conesep
+pip install torch==2.1.0 torchvision==0.16.0 torchaudio==2.1.0 --index-url [https://download.pytorch.org/whl/cu121](https://download.pytorch.org/whl/cu121)
+pip install scikit-learn==1.3.2 transformers==4.25.0 salesforce-lavis==1.0.2 timm==0.9.16
+```
+
+### Step 2: Download Model Weights
+Download the specific `.pt` files you need from this Hugging Face repository and place them into a `checkpoints/` directory within your cloned repo. For example, to evaluate the CIRR model trained with 50% noise:
+
+```text
+ConeSep/
+└── checkpoints/
+    └── cirr_noise0.5/
+        └���─ best_model.pt  <-- (Rename the downloaded ConeSep-CIRR_N0.5.pt to best_model.pt)
+```
+
+### Step 3: Run Testing / Evaluation
+To generate prediction files on the CIRR dataset for the [CIRR Evaluation Server](https://cirr.cecs.anu.edu.au/), run:
+
+```bash
+# Example for testing the CIRR 50% noise model
+python src/cirr_test_submission.py checkpoints/cirr_noise0.5/
+```
+*(The script will automatically generate the required `.json` files based on the checkpoint for online evaluation.)*
+
+---
+
+## ⚠️ Limitations & Notes
+
+- **Hardware Requirements:** ConeSep is built upon the BLIP-2 architecture. It is highly recommended to run inference and training on GPUs with sufficient memory (e.g., NVIDIA A40 48GB or V100 32GB).
+- **Intended Use:** These weights are intended for academic research, robustness evaluation, and reproducing the results reported in the CVPR 2026 paper.
+
+---
+
+## 📝⭐️ Citation
+
+If you find our framework, code, or these weights useful in your research, please consider leaving a **Star** ⭐️ on our GitHub repository and citing our CVPR 2026 paper:
+
+```bibtex
+@InProceedings{ConeSep,
+    title={ConeSep: Cone-based Robust Noise-Unlearning Compositional Network for Composed Image Retrieval},
+    author={Li, Zixu and Hu, Yupeng and Chen, Zhiwei and Zhang, Mingyu and Fu, Zhiheng and Nie, Liqiang},
+    booktitle={Proceedings of the Computer Vision and Pattern Recognition Conference (CVPR)},
+    year = {2026}
+}
+```