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Model: Anshrajsingh/qwen2.5-1.5b-ticket-classifier Source: Original Platform
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README.md
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---
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library_name: transformers
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tags:
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- text-generation
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- qwen2
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- conversational
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- fine-tuned
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- ticket-classification
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- structured-extraction
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license: apache-2.0
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language:
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- hi
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- en
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base_model:
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- Qwen/Qwen2.5-1.5B-Instruct
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pipeline_tag: text-generation
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---
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# Model Card for Model ID
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# 🚀 Production-Grade SLM Structured Data Extractor
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### **Fine-Tuned Qwen-1.5B-Instruct for Zero-Yapping Strict JSON Schema Compliance**
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[](https://huggingface.co/spaces/Anshrajsingh/slm-finetunning)
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[](https://huggingface.co/Anshrajsingh/qwen2.5-1.5b-ticket-classifier)
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---
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## 📌 Business Case & Problem Statement
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In enterprise production environments, **unstructured text** (customer support tickets, invoices, logs) must be mapped to structured databases (SQL/NoSQL) with 100% deterministic reliability.
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While massive commercial LLMs (like GPT-4o) achieve high accuracy, they introduce major bottlenecks for high-throughput narrow tasks:
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1. **High API Costs:** Processing millions of tokens daily is economically unsustainable.
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2. **High Latency:** Cloud API round-trips slow down real-time automated routing workflows.
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3. **Data Privacy Risks:** Transmitting sensitive client information (PII) to third-party APIs violates data compliance laws (GDPR/HIPAA).
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4. **Formatting Violations ("Yapping"):** General-purpose base models frequently violate strict formatting constraints by adding conversational filler (e.g., *"Here is the JSON you requested..."*).
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### **The Solution**
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This project demonstrates **Cost-Conscious AI Engineering** by fine-tuning a **1.5 Billion parameter Small Language Model (SLM)** to perform production-grade, schema-bound classification with near-zero latency and fraction of a cent compute cost, making it entirely deployable on the edge or low-cost commodity GPUs.
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---
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## 📊 Performance & ROI Benchmark
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We evaluated the model on a hidden test dataset of customer support tickets across 4 categorical schema keys: `category`, `urgency`, `sentiment`, and `action_required`.
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| Metric | Base Model (Qwen2.5-1.5B-Instruct) | Fine-Tuned SLM (LoRA Adapted) |
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| :--- | :--- | :--- |
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| **Valid JSON Generation Rate** | 100% (Wrapped in Markdown) | **100% (Pure Strict JSON)** |
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| **Schema Compliance** | 0.0% (Generated arbitrary tags) | **95.6% (Strictly adheres to enum keys)** |
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| **Exact Match Accuracy** | 0.0% | **91.3%** |
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| **Formatting Filler (Yapping)** | High | **0.0% (Starts with `{` ends with `}`)** |
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| **Deployment Suitability** | General Chat | **Production-Ready Automated API** |
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### 💰 Estimated Cost Breakdown (At Scale)
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*Assumed volume: 1 Million Tickets/Month (~300M Tokens processed)*
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* **Commercial LLM API (e.g., GPT-4o Class):** ~$750 - $1,500 / month
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* **This Fine-Tuned SLM (Hosted on Single Low-End Instance / Serverless GPU):** **<$25 / month**
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* **Net Business Savings:** **~96.5% Cost Reduction** with 100% data privacy.
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---
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## 🛠️ Technical Implementation & Architecture
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### **1. Technology Stack**
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* **Base Model:** `Qwen/Qwen2.5-1.5B-Instruct`
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* **Fine-Tuning Technique:** Parameter-Efficient Fine-Tuning (PEFT) using **QLoRA (4-bit quantization)**
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* **Infrastructure:** Trained via PyTorch and Hugging Face `Trainer` pipeline on a single consumer-grade T4 GPU.
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* **Inference UI:** Gradio application deployed seamlessly on Hugging Face Spaces.
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### **2. Target Features & Schema Constraints**
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The model was fine-tuned using custom-engineered synthetic dataset structures following the **ChatML** format to map arbitrary inputs directly into this immutable JSON schema:
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```json
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{
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"category": "billing | technical | refund | account | general",
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"urgency": "low | medium | high",
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"sentiment": "positive | negative | neutral",
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"action_required": "auto_reply | escalate | close"
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}
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|
||||
"chat_template": "{%- if tools %}\n {{- '<|im_start|>system\\n' }}\n {%- if messages[0]['role'] == 'system' %}\n {{- messages[0]['content'] }}\n {%- else %}\n {{- 'You are Qwen, created by Alibaba Cloud. You are a helpful assistant.' }}\n {%- endif %}\n {{- \"\\n\\n# Tools\\n\\nYou may call one or more functions to assist with the user query.\\n\\nYou are provided with function signatures within <tools></tools> XML tags:\\n<tools>\" }}\n {%- for tool in tools %}\n {{- \"\\n\" }}\n {{- tool | tojson }}\n {%- endfor %}\n {{- \"\\n</tools>\\n\\nFor each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:\\n<tool_call>\\n{\\\"name\\\": <function-name>, \\\"arguments\\\": <args-json-object>}\\n</tool_call><|im_end|>\\n\" }}\n{%- else %}\n {%- if messages[0]['role'] == 'system' %}\n {{- '<|im_start|>system\\n' + messages[0]['content'] + '<|im_end|>\\n' }}\n {%- else %}\n {{- '<|im_start|>system\\nYou are Qwen, created by Alibaba Cloud. You are a helpful assistant.<|im_end|>\\n' }}\n {%- endif %}\n{%- endif %}\n{%- for message in messages %}\n {%- if (message.role == \"user\") or (message.role == \"system\" and not loop.first) or (message.role == \"assistant\" and not message.tool_calls) %}\n {{- '<|im_start|>' + message.role + '\\n' + message.content + '<|im_end|>' + '\\n' }}\n {%- elif message.role == \"assistant\" %}\n {{- '<|im_start|>' + message.role }}\n {%- if message.content %}\n {{- '\\n' + message.content }}\n {%- endif %}\n {%- for tool_call in message.tool_calls %}\n {%- if tool_call.function is defined %}\n {%- set tool_call = tool_call.function %}\n {%- endif %}\n {{- '\\n<tool_call>\\n{\"name\": \"' }}\n {{- tool_call.name }}\n {{- '\", \"arguments\": ' }}\n {{- tool_call.arguments | tojson }}\n {{- '}\\n</tool_call>' }}\n {%- endfor %}\n {{- '<|im_end|>\\n' }}\n {%- elif message.role == \"tool\" %}\n {%- if (loop.index0 == 0) or (messages[loop.index0 - 1].role != \"tool\") %}\n {{- '<|im_start|>user' }}\n {%- endif %}\n {{- '\\n<tool_response>\\n' }}\n {{- message.content }}\n {{- '\\n</tool_response>' }}\n {%- if loop.last or (messages[loop.index0 + 1].role != \"tool\") %}\n {{- '<|im_end|>\\n' }}\n {%- endif %}\n {%- endif %}\n{%- endfor %}\n{%- if add_generation_prompt %}\n {{- '<|im_start|>assistant\\n' }}\n{%- endif %}\n",
|
||||
"clean_up_tokenization_spaces": false,
|
||||
"eos_token": "<|im_end|>",
|
||||
"errors": "replace",
|
||||
"model_max_length": 131072,
|
||||
"pad_token": "<|endoftext|>",
|
||||
"split_special_tokens": false,
|
||||
"tokenizer_class": "Qwen2Tokenizer",
|
||||
"unk_token": null
|
||||
}
|
||||
1
vocab.json
Normal file
1
vocab.json
Normal file
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user