157 lines
5.8 KiB
Python
157 lines
5.8 KiB
Python
# -*- coding: utf-8 -*-
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"""iAOP-Core · LLM 网关 —— 幻觉/事实性校验评测报告脚本(Issue #47)。
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对应 PRD 5.4「定期用评测集检验事实一致性」:把评测集 JSON + Prompt 版本库
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配置跑一遍 `HallucinationGuard.evaluate()`,产出 Markdown 评测报告
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(按 `name@version` 分解,Prompt 变更后可用于对比各版本事实一致性)。
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用法示例:
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# 使用内置演示评测集,输出报告到文件(utf-8)
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python evaluate_hallucination.py --demo --output reports/hallucination.md
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# 使用自定义评测集 JSON(见下方 SAMPLE 字段说明)
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python evaluate_hallucination.py --samples eval_set.json --output report.md
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# 不指定 --output:报告打印到 stdout
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python evaluate_hallucination.py --demo
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评测集 JSON 格式(顶层为数组):
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[
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{
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"answer": "建议降温。[来源: 沸腾氯化炉异常处置SOP]",
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"sources": ["沸腾氯化炉异常处置SOP"],
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"confidence": 0.9,
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"high_stakes": true,
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"prompt_name": "alarm_explain", // 可选,与版本库联动
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"prompt_version": "1.0.0" // 可选,缺省取当前默认版本
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}
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]
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测试:`python -m unittest discover -s tests -v`(在 core/llm-gateway 目录下执行)。
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"""
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from __future__ import annotations
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import argparse
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import json
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import os
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import sys
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import types
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from typing import List
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# ---------------------------------------------------------------------------
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# 包挂载(目录名含连字符,无法直接以包名 import;与 tests/_bootstrap.py 同款)
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# ---------------------------------------------------------------------------
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_LLM_GW_DIR = os.path.dirname(os.path.abspath(__file__))
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sys.path.insert(0, _LLM_GW_DIR)
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if "llm_gateway" not in sys.modules:
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_pkg = types.ModuleType("llm_gateway")
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_pkg.__path__ = [_LLM_GW_DIR]
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sys.modules["llm_gateway"] = _pkg
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from llm_gateway.hallucination import HallucinationGuard # noqa: E402
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from llm_gateway.prompts import PromptRegistry # noqa: E402
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# 内置演示评测集(无 --samples 时使用,覆盖 pass / unsupported / human_review)
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DEMO_SAMPLES: List[dict] = [
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{
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"answer": "建议降低氯化炉温度并观察。[来源: 沸腾氯化炉异常处置SOP]",
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"sources": ["沸腾氯化炉异常处置SOP"],
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"confidence": 0.95,
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"high_stakes": True,
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"prompt_name": "alarm_explain",
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},
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{
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"answer": "应立即停机检修。[来源: 不存在的工艺文档]",
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"sources": ["沸腾氯化炉异常处置SOP"],
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"confidence": 0.9,
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"high_stakes": True,
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"prompt_name": "alarm_explain",
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},
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{
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"answer": "班次生产概况:炉温稳定。[来源: 交接班规范]",
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"sources": ["交接班规范"],
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"confidence": 0.6,
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"high_stakes": False,
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"prompt_name": "shift_handover",
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"prompt_version": "1.0.1",
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},
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]
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def load_samples(path: str) -> List[dict]:
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"""从 JSON 文件加载评测集(顶层为样本数组)。"""
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with open(path, "r", encoding="utf-8") as fh:
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data = json.load(fh)
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if not isinstance(data, list):
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raise ValueError(f"评测集文件 {path} 顶层必须是样本数组")
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return data
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def main(argv: List[str]) -> int:
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parser = argparse.ArgumentParser(
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prog="evaluate_hallucination",
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description="幻觉/事实性校验评测报告(PRD 5.4 定期评测)",
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)
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parser.add_argument(
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"--prompts-config", default="config/prompts.template.yaml",
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help="Prompt 版本库模板资产路径(默认 config/prompts.template.yaml)",
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)
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parser.add_argument(
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"--samples", default=None,
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help="评测集 JSON 文件路径(与 --demo 二选一)",
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)
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parser.add_argument(
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"--demo", action="store_true",
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help="使用内置演示评测集(未指定 --samples 时默认开启)",
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)
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parser.add_argument(
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"--threshold", type=float, default=0.8,
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help="高利害信度阈值(默认 0.8)",
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)
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parser.add_argument(
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"--output", default=None,
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help="报告输出文件路径(utf-8);缺省打印到 stdout",
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)
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args = parser.parse_args(argv)
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# 评测集:--samples 优先,否则内置演示集
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if args.samples:
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samples = load_samples(args.samples)
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else:
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samples = DEMO_SAMPLES
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print("[evaluate_hallucination] 未指定 --samples,使用内置演示评测集",
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file=sys.stderr)
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# Prompt 版本库(与评测联动:按 name@version 分解)
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registry = PromptRegistry.from_template_config(args.prompts_config)
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guard = HallucinationGuard(default_threshold=args.threshold)
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report = guard.evaluate(samples, registry=registry)
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text = guard.render_evaluation_report(report)
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if args.output:
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os.makedirs(os.path.dirname(os.path.abspath(args.output)) or ".", exist_ok=True)
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with open(args.output, "w", encoding="utf-8") as fh:
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fh.write(text)
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print(f"[evaluate_hallucination] 评测报告已写入:{args.output}", file=sys.stderr)
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else:
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# Windows 控制台可能为 GBK:显式用 utf-8 输出避免编码错误
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try:
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sys.stdout.reconfigure(encoding="utf-8", errors="replace")
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except (AttributeError, ValueError): # pragma: no cover - 旧版解释器
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pass
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print(text)
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# 简报(stderr,便于定时任务抓取结论)
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print(
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"[evaluate_hallucination] 样本 {total}|支持率 {sr:.1%}|人工复核率 {hr:.1%}"
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.format(total=report["total"], sr=float(report["supported_rate"]),
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hr=float(report["human_review_rate"])),
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file=sys.stderr,
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)
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return 0
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if __name__ == "__main__":
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sys.exit(main(sys.argv[1:]))
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