Add model card.

README.md

@@ -1,3 +1,52 @@
 ---
 license: cc-by-nc-sa-4.0
 ---
+
+# LLMLingua-2-Bert-base-Multilingual-Cased-MeetingBank
+
+This model was introduced in the paper [**LLMLingua-2: Data Distillation for Efficient and Faithful Task-Agnostic Prompt Compression** (Pan et al, 2024)](). It is a [BERT multilingual base model (cased)](https://huggingface.co/google-bert/bert-base-multilingual-cased) finetuned to perform token classification for task agnostic prompt compression. The probability $p_{preserve}$ of each token $x_i$ is used as the metric for compression. This model is trained on an extractive text compression dataset constructed with the methodology proposed in the [LLMLingua-2], using training examples from [MeetingBank (Hu et al, 2023)](https://meetingbank.github.io/) as the seed data.
+
+## Usage
+```python
+from llmlingua import PromptCompressor
+
+compressor = PromptCompressor(
+        model_name="qianhuiwu/llmlingua-2-bert-base-multilingual-cased-meetingbank",
+        use_llmlingua2=True
+    )
+
+original_prompt = """John: So, um, I've been thinking about the project, you know, and I believe we need to, uh, make some changes. I mean, we want the project to succeed, right? So, like, I think we should consider maybe revising the timeline.
+Sarah: I totally agree, John. I mean, we have to be realistic, you know. The timeline is, like, too tight. You know what I mean? We should definitely extend it.
+"""
+results = compressor.compress_prompt_llmlingua2(
+        original_prompt,
+        rate=0.6,
+        force_tokens=['\n', '.', '!', '?', ','],
+        chunk_end_tokens=['.', '\n'],
+        return_word_label=True,
+        drop_consecutive=True
+        )
+
+print(results.keys())
+print(f"Compressed prompt: {results['compressed_prompt']}")
+print(f"Original tokens: {results['origin_tokens']}")
+print(f"Compressed tokens: {results['compressed_tokens']}")
+print(f"Compression rate: {results['rate']}")
+
+# get the annotated results over the original prompt
+word_sep = "\t\t|\t\t"
+label_sep = " "
+lines = results["fn_labeled_original_prompt"].split(word_sep)
+annotated_results = []
+for line in lines:
+    word, label = line.split(label_sep)
+    annotated_results.append((word, '+') if label == '1' else (word, '-')) # list of tuples: (word, label)
+print("Annotated results:")
+for word, label in annotated_results[:10]:
+    print(f"{word} {label}")
+```
+
+## Citation
+```
+{}
+```