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eval_enterprise.py
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| 1 |
+
#!/usr/bin/env python3
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| 2 |
+
"""
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| 3 |
+
企業多任務 LLM 評估腳本
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| 4 |
+
測試四大能力: 客服FAQ | 文件問答 | 工單分類 | 資訊抽取
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| 5 |
+
"""
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| 6 |
+
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| 7 |
+
import json
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| 8 |
+
import torch
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| 9 |
+
from transformers import AutoModelForCausalLM, AutoTokenizer, BitsAndBytesConfig
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| 10 |
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from peft import PeftModel
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| 11 |
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| 12 |
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MODEL_ID = "Qwen/Qwen2.5-7B-Instruct"
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| 13 |
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ADAPTER_ID = "Justin-lee/Qwen2.5-7B-Enterprise-ZH"
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| 14 |
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| 15 |
+
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| 16 |
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def load_model(use_adapter=True):
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| 17 |
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"""Load model with optional LoRA adapter."""
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| 18 |
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print(f"📦 Loading {'fine-tuned' if use_adapter else 'base'} model...")
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| 19 |
+
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| 20 |
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bnb_config = BitsAndBytesConfig(
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load_in_4bit=True,
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bnb_4bit_quant_type="nf4",
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| 23 |
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bnb_4bit_use_double_quant=True,
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| 24 |
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bnb_4bit_compute_dtype=torch.bfloat16,
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| 25 |
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)
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| 26 |
+
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| 27 |
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tokenizer = AutoTokenizer.from_pretrained(MODEL_ID, trust_remote_code=True)
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| 28 |
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model = AutoModelForCausalLM.from_pretrained(
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MODEL_ID,
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| 30 |
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quantization_config=bnb_config,
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| 31 |
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device_map="auto",
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| 32 |
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trust_remote_code=True,
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torch_dtype=torch.bfloat16,
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| 34 |
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)
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| 35 |
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| 36 |
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if use_adapter:
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| 37 |
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model = PeftModel.from_pretrained(model, ADAPTER_ID)
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| 38 |
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print(f" ✅ LoRA adapter loaded from {ADAPTER_ID}")
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| 39 |
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| 40 |
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return model, tokenizer
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| 41 |
+
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| 42 |
+
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| 43 |
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def generate(model, tokenizer, messages, max_new_tokens=512):
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| 44 |
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"""Generate response from messages."""
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| 45 |
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text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
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| 46 |
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inputs = tokenizer(text, return_tensors="pt").to(model.device)
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| 47 |
+
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| 48 |
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with torch.no_grad():
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| 49 |
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outputs = model.generate(
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| 50 |
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**inputs,
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| 51 |
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max_new_tokens=max_new_tokens,
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| 52 |
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temperature=0.3,
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| 53 |
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top_p=0.9,
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| 54 |
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do_sample=True,
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| 55 |
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pad_token_id=tokenizer.eos_token_id,
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| 56 |
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)
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| 57 |
+
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| 58 |
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response = tokenizer.decode(outputs[0][inputs.input_ids.shape[1]:], skip_special_tokens=True)
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| 59 |
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return response.strip()
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| 60 |
+
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| 61 |
+
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| 62 |
+
# ── Test Cases ──
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| 63 |
+
EVAL_CASES = {
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| 64 |
+
"客服FAQ": [
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| 65 |
+
{
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| 66 |
+
"system": "你是一個專業的企業客服助手。請根據用戶的問題,提供準確、簡潔、有禮貌的回答。",
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| 67 |
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"user": "我昨天下的訂單想取消,還來得及嗎?訂單號 ORD-20240420。",
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| 68 |
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"expected_keywords": ["取消", "訂單", "狀態", "發貨"],
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| 69 |
+
},
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| 70 |
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{
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| 71 |
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"system": "你是一個專業的企業客服助手。請根據用戶的問題,提供準確、簡潔、有禮貌的回答。",
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| 72 |
+
"user": "你們的會員制度是怎樣的?有什麼優惠?",
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| 73 |
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"expected_keywords": ["會員", "優惠", "等級"],
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| 74 |
+
},
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| 75 |
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{
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| 76 |
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"system": "你是一個專業的企業客服助手。請根據用戶的問題,提供準確、簡潔、有禮貌的回答。",
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| 77 |
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"user": "商品收到有破損,怎麼處理?",
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| 78 |
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"expected_keywords": ["退", "換", "照片", "客服"],
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| 79 |
+
},
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| 80 |
+
],
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| 81 |
+
"文件問答": [
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| 82 |
+
{
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| 83 |
+
"system": "你是一個文件分析助手。請仔細閱讀提供的文件內容,僅根據文件中的資訊回答問題。",
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| 84 |
+
"user": "請根據以下文件回答問題。\n\n【文件內容】\n公司年假制度:入職滿1年的員工享有5天年假,滿3年享有10天,滿5年享有15天。年假需提前3個工作日申請,由直屬主管審批。未使用的年假不可轉入下年度,但可折算為加班費。特殊情況(如家庭重大事件)可申請額外3天事假。\n\n【問題】\n工作3年的員工有幾天年假?年假可以保留到明年嗎?",
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| 85 |
+
"expected_keywords": ["10", "不可", "折算", "加班費"],
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| 86 |
+
},
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| 87 |
+
{
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| 88 |
+
"system": "你是一個文件分析助手。請仔細閱讀提供的文件內容,僅根據文件中的資訊回答問題。",
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| 89 |
+
"user": "請根據以下文件回答問題。\n\n【文件內容】\n退款政策:1. 未發貨訂單:可立即取消並全額退款。2. 已發貨未簽收:需要拒收後由物流退回,退回運費由公司承擔。3. 已簽收:7天內可申請退貨退款,退回運費由買家承擔。4. 特殊商品(定製品、食品、內衣)不支持退貨。退款將原路返回至付款帳戶。\n\n【問題】\n已經簽收的訂單退貨,運費誰出?定製品可以退嗎?",
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| 90 |
+
"expected_keywords": ["買家", "不支持", "定製"],
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| 91 |
+
},
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| 92 |
+
],
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| 93 |
+
"工單分類": [
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| 94 |
+
{
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| 95 |
+
"system": "你是一個工單分類與分流助手。請根據用戶描述的問題,將其分類到最合適的處理類別。",
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| 96 |
+
"user": "請將以下客戶訊息分類到合適的處理部門。\n可選部門:售後服務、物流配送、帳號問題、付款財務、產品諮詢、投訴建議、技術支援、合作洽談\n\n客戶訊息:我買的藍牙耳機左耳沒聲音了,買了才兩個禮拜。",
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| 97 |
+
"expected_keywords": ["售後", "保固", "故障"],
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| 98 |
+
},
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| 99 |
+
{
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| 100 |
+
"system": "你是一個工單分類與分流助手。請根據用戶描述的問題��將其分類到最合適的處理類別。",
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| 101 |
+
"user": "請將以下客戶訊息分類到合適的處理部門。\n可選部門:售後服務、物流配送、帳號問題、付款財務、產品諮詢、投訴建議、技術支援、合作洽談\n\n客戶訊息:付款一直顯示失敗,我用了三張不同的信用卡都不行。",
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| 102 |
+
"expected_keywords": ["付款", "財務"],
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| 103 |
+
},
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| 104 |
+
],
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| 105 |
+
"資訊抽取": [
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| 106 |
+
{
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| 107 |
+
"system": "你是一個資訊抽取助手。請從文本中準確抽取指定類型的實體資訊。",
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| 108 |
+
"user": "請從以下文本中抽取所有關鍵資訊(人名、日期、金額、地址、聯繫方式):\n\n「客戶王大明先生於2024年4月18日來電,反映其於3月25日在台北市大安區忠孝東路四段200號門市購買的筆記型電腦(金額NT$35,800)出現螢幕閃爍問題。客戶要求維修或更換,聯繫電話:0912-345-678,Email: wang.dm@gmail.com。」",
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| 109 |
+
"expected_keywords": ["王大明", "2024年4月18日", "35,800", "忠孝東路", "0912"],
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| 110 |
+
},
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| 111 |
+
{
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| 112 |
+
"system": "你是一個資訊抽取助手。請從文本中準確抽取指定類型的實體資訊。",
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| 113 |
+
"user": "請從以下合約條款中抽取關鍵條件:\n\n「甲方(承租人)李小華需於每月5日前支付租金新台幣28,000元至乙方指定帳戶。租賃期間自2024年5月1日起至2025年4月30日止,共12個月。押金為兩個月租金共56,000元,於退租時無息退還。如逾期付租超過15日,乙方有權終止合約。」",
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| 114 |
+
"expected_keywords": ["李小華", "28,000", "2024年5月1日", "2025年4月30日", "56,000", "15日"],
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| 115 |
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},
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| 116 |
+
],
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| 117 |
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}
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| 118 |
+
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| 119 |
+
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| 120 |
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def evaluate(model, tokenizer):
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| 121 |
+
"""Run evaluation on all task categories."""
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| 122 |
+
print("\n" + "="*70)
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| 123 |
+
print("📊 Enterprise Multi-Task LLM Evaluation")
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| 124 |
+
print("="*70)
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| 125 |
+
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| 126 |
+
results = {}
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| 127 |
+
|
| 128 |
+
for task_name, cases in EVAL_CASES.items():
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| 129 |
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print(f"\n{'─'*60}")
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| 130 |
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print(f"📋 Task: {task_name} ({len(cases)} cases)")
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| 131 |
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print(f"{'─'*60}")
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| 132 |
+
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| 133 |
+
task_scores = []
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| 134 |
+
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| 135 |
+
for i, case in enumerate(cases):
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| 136 |
+
messages = [
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| 137 |
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{"role": "system", "content": case["system"]},
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| 138 |
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{"role": "user", "content": case["user"]},
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| 139 |
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]
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| 140 |
+
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| 141 |
+
response = generate(model, tokenizer, messages)
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| 142 |
+
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| 143 |
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# Check keyword coverage
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| 144 |
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keywords = case["expected_keywords"]
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| 145 |
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hits = sum(1 for kw in keywords if kw in response)
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| 146 |
+
score = hits / len(keywords) if keywords else 1.0
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| 147 |
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task_scores.append(score)
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| 148 |
+
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| 149 |
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print(f"\n Case {i+1}:")
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| 150 |
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print(f" Q: {case['user'][:80]}...")
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| 151 |
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print(f" A: {response[:200]}...")
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| 152 |
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print(f" Keywords: {hits}/{len(keywords)} ({score:.0%})")
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| 153 |
+
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| 154 |
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avg_score = sum(task_scores) / len(task_scores) if task_scores else 0
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| 155 |
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results[task_name] = avg_score
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| 156 |
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print(f"\n 📈 {task_name} Average: {avg_score:.1%}")
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| 157 |
+
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| 158 |
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# Summary
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| 159 |
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print("\n" + "="*70)
|
| 160 |
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print("📊 Overall Results")
|
| 161 |
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print("="*70)
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| 162 |
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overall = sum(results.values()) / len(results)
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| 163 |
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for task, score in results.items():
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| 164 |
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bar = "█" * int(score * 20) + "░" * (20 - int(score * 20))
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| 165 |
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print(f" {task:10s} {bar} {score:.1%}")
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| 166 |
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print(f"\n Overall Average: {overall:.1%}")
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| 167 |
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print("="*70)
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| 168 |
+
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| 169 |
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return results
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| 170 |
+
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| 171 |
+
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| 172 |
+
if __name__ == "__main__":
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| 173 |
+
import sys
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| 174 |
+
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| 175 |
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use_adapter = "--base" not in sys.argv
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| 176 |
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model, tokenizer = load_model(use_adapter=use_adapter)
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| 177 |
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results = evaluate(model, tokenizer)
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| 178 |
+
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| 179 |
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# Save results
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| 180 |
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with open("eval_results.json", "w", encoding="utf-8") as f:
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| 181 |
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json.dump(results, f, ensure_ascii=False, indent=2)
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| 182 |
+
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| 183 |
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print(f"\n📝 Results saved to eval_results.json")
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