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4.1 整体架构与工程流程.html

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    257. 

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  261.     1.1 项目架构
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    280. 

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    284. 

  284.     1.2 项目环境(window)
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    303. 

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  307.     1.3 项目环境(mac)
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    348. 

  348.     ② 项目工具
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  359.             ② 项目工具
    360. 

  360.           </label>
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    369. 

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    373. 

  373.     2.1 Ollama大模型高效管理工具
    374. 

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    391. 

  391.         
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    394. 

  394.   <span class="md-ellipsis">
    395. 

  395.     2.2 LangChain基础知识.md
    396. 

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    413. 

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    415. 

  415.   
    416. 

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    417. 

  417.     2.3 向量索引：HNSW、IVF与IVF_PQ
    418. 

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    420. 

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  434.       <a href="../%E2%91%A1%20%E9%A1%B9%E7%9B%AE%E5%B7%A5%E5%85%B7/2.4%20Milvus%E5%90%91%E9%87%8F%E6%95%B0%E6%8D%AE%E5%BA%93.html" class="md-nav__link">
    435. 

  435.         
    436. 

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  437.   
    438. 

  438.   <span class="md-ellipsis">
    439. 

  439.     2.4 Milvus向量数据库
    440. 

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    441. 

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    442. 

  442.   
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  444.       </a>
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  479.   <span class="md-ellipsis">
    480. 

  480.     ③ 基于Mysql库的问答系统
    481. 

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    482. 

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    491. 

  491.             ③ 基于Mysql库的问答系统
    492. 

  492.           </label>
    493. 

  493.           <ul class="md-nav__list" data-md-scrollfix>
    494. 

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    502. 

  502.       <a href="../%E2%91%A2%20%E5%9F%BA%E4%BA%8EMysql%E5%BA%93%E7%9A%84%E9%97%AE%E7%AD%94%E7%B3%BB%E7%BB%9F/3.1%20Python%E6%97%A5%E5%BF%97%E4%BB%8B%E7%BB%8D%E4%B8%8E%E5%BA%94%E7%94%A8.html" class="md-nav__link">
    503. 

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    504. 

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    505. 

  505.   
    506. 

  506.   <span class="md-ellipsis">
    507. 

  507.     3.1 Python日志介绍与应用
    508. 

  508.     
    509. 

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    510. 

  510.   
    511. 

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    526. 

  526.         
    527. 

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    528. 

  528.   
    529. 

  529.   <span class="md-ellipsis">
    530. 

  530.     3.2 Redis数据库简介与使用
    531. 

  531.     
    532. 

  532.   </span>
    533. 

  533.   
    534. 

  534. 

  535.       </a>
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    549. 

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    552. 

  552.   <span class="md-ellipsis">
    553. 

  553.     3.3 基于Mysql数据库实现问答系统
    554. 

  554.     
    555. 

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    572. 

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    576. 

  576.     3.4 BM25算法简介与应用
    577. 

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  579.   
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  581.       </a>
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  619.     ④ 基于Milvus库的问答系统
    620. 

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  621.   </span>
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  628.           <label class="md-nav__title" for="__nav_5">
    629. 

  629.             <span class="md-nav__icon md-icon"></span>
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  630.             ④ 基于Milvus库的问答系统
    631. 

  631.           </label>
    632. 

  632.           <ul class="md-nav__list" data-md-scrollfix>
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    649. 

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  652.   <span class="md-ellipsis">
    653. 

  653.     4.1 整体架构与工程流程
    654. 

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  666.     4.1 整体架构与工程流程
    667. 

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  670. 

  671.       </a>
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  681.       <span class="md-nav__icon md-icon"></span>
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  682.       目录
    683. 

  683.     </label>
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  684.     <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
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  685.       
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    687. 

  687.   <a href="#_1" class="md-nav__link">
    688. 

  688.     <span class="md-ellipsis">
    689. 

  689.       学习目标
    690. 

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    694. 

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    696. 

  696.   <a href="#rag" class="md-nav__link">
    697. 

  697.     <span class="md-ellipsis">
    698. 

  698.       一、RAG系统整体架构介绍
    699. 

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  702.     <nav class="md-nav" aria-label="一、RAG系统整体架构介绍">
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    706. 

  706.   <a href="#1" class="md-nav__link">
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    708. 

  708.       1 系统背景
    709. 

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    716. 

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    717. 

  717.       2 模块化架构
    718. 

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    721. 

  721.     <nav class="md-nav" aria-label="2 模块化架构">
    722. 

  722.       <ul class="md-nav__list">
    723. 

  723.         
    724. 

  724.           <li class="md-nav__item">
    725. 

  725.   <a href="#21" class="md-nav__link">
    726. 

  726.     <span class="md-ellipsis">
    727. 

  727.       2.1 整体结构
    728. 

  728.     </span>
    729. 

  729.   </a>
    730. 

  730.   
    731. 

  731. </li>
    732. 

  732.         
    733. 

  733.           <li class="md-nav__item">
    734. 

  734.   <a href="#22" class="md-nav__link">
    735. 

  735.     <span class="md-ellipsis">
    736. 

  736.       2.2 模块详情
    737. 

  737.     </span>
    738. 

  738.   </a>
    739. 

  739.   
    740. 

  740. </li>
    741. 

  741.         
    742. 

  742.       </ul>
    743. 

  743.     </nav>
    744. 

  744.   
    745. 

  745. </li>
    746. 

  746.         
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  747.           <li class="md-nav__item">
    748. 

  748.   <a href="#3" class="md-nav__link">
    749. 

  749.     <span class="md-ellipsis">
    750. 

  750.       3 代码目录结构
    751. 

  751.     </span>
    752. 

  752.   </a>
    753. 

  753.   
    754. 

  754. </li>
    755. 

  755.         
    756. 

  756.       </ul>
    757. 

  757.     </nav>
    758. 

  758.   
    759. 

  759. </li>
    760. 

  760.       
    761. 

  761.         <li class="md-nav__item">
    762. 

  762.   <a href="#rag_1" class="md-nav__link">
    763. 

  763.     <span class="md-ellipsis">
    764. 

  764.       二、RAG系统基本工作流程
    765. 

  765.     </span>
    766. 

  766.   </a>
    767. 

  767.   
    768. 

  768.     <nav class="md-nav" aria-label="二、RAG系统基本工作流程">
    769. 

  769.       <ul class="md-nav__list">
    770. 

  770.         
    771. 

  771.           <li class="md-nav__item">
    772. 

  772.   <a href="#1_1" class="md-nav__link">
    773. 

  773.     <span class="md-ellipsis">
    774. 

  774.       1 步骤
    775. 

  775.     </span>
    776. 

  776.   </a>
    777. 

  777.   
    778. 

  778. </li>
    779. 

  779.         
    780. 

  780.           <li class="md-nav__item">
    781. 

  781.   <a href="#2_1" class="md-nav__link">
    782. 

  782.     <span class="md-ellipsis">
    783. 

  783.       2 流程图
    784. 

  784.     </span>
    785. 

  785.   </a>
    786. 

  786.   
    787. 

  787. </li>
    788. 

  788.         
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  789.       </ul>
    790. 

  790.     </nav>
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  791.   
    792. 

  792. </li>
    793. 

  793.       
    794. 

  794.         <li class="md-nav__item">
    795. 

  795.   <a href="#_2" class="md-nav__link">
    796. 

  796.     <span class="md-ellipsis">
    797. 

  797.       本章小结
    798. 

  798.     </span>
    799. 

  799.   </a>
    800. 

  800.   
    801. 

  801. </li>
    802. 

  802.       
    803. 

  803.     </ul>
    804. 

  804.   
    805. 

  805. </nav>
    806. 

  806.       
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  807.     </li>
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  808.   
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  816.   
    817. 

  817.   
    818. 

  818.     <li class="md-nav__item">
    819. 

  819.       <a href="4.2%20%E5%9F%BA%E7%A1%80%E6%A8%A1%E5%9D%97.html" class="md-nav__link">
    820. 

  820.         
    821. 

  821.   
    822. 

  822.   
    823. 

  823.   <span class="md-ellipsis">
    824. 

  824.     4.2 基础模块
    825. 

  825.     
    826. 

  826.   </span>
    827. 

  827.   
    828. 

  828. 

  829.       </a>
    830. 

  830.     </li>
    831. 

  831.   
    832. 

  832. 

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  838.   
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  839.   
    840. 

  840.   
    841. 

  841.     <li class="md-nav__item">
    842. 

  842.       <a href="4.3%20%E6%96%87%E6%A1%A3%E5%A4%84%E7%90%86%E6%A8%A1%E5%9D%97.html" class="md-nav__link">
    843. 

  843.         
    844. 

  844.   
    845. 

  845.   
    846. 

  846.   <span class="md-ellipsis">
    847. 

  847.     4.3 文档处理模块
    848. 

  848.     
    849. 

  849.   </span>
    850. 

  850.   
    851. 

  851. 

  852.       </a>
    853. 

  853.     </li>
    854. 

  854.   
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  855. 

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  861.   
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  862.   
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  863.   
    864. 

  864.     <li class="md-nav__item">
    865. 

  865.       <a href="4.4%20%E5%90%91%E9%87%8F%E5%AD%98%E5%82%A8.html" class="md-nav__link">
    866. 

  866.         
    867. 

  867.   
    868. 

  868.   
    869. 

  869.   <span class="md-ellipsis">
    870. 

  870.     4.4 向量存储
    871. 

  871.     
    872. 

  872.   </span>
    873. 

  873.   
    874. 

  874. 

  875.       </a>
    876. 

  876.     </li>
    877. 

  877.   
    878. 

  878. 

  879.               
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  880.             
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  881.               
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  882.                 
    883. 

  883.   
    884. 

  884.   
    885. 

  885.   
    886. 

  886.   
    887. 

  887.     <li class="md-nav__item"><a href="4.5%20BERT%E5%9F%BA%E7%A1%80%E4%B8%8E%E4%BB%BB%E5%8A%A1%E5%BE%AE%E8%B0%83.html" class="md-nav__link"><span class="md-ellipsis">4.5 BERT基础与任务微调</span></a></li><li class="md-nav__item">
    888. 

  888.       <a href="4.6%20prompts%E8%AE%BE%E8%AE%A1%E4%B8%8Equery%E6%84%8F%E5%9B%BE%E8%AF%86%E5%88%AB.html" class="md-nav__link">
    889. 

  889.         
    890. 

  890.   
    891. 

  891.   
    892. 

  892.   <span class="md-ellipsis">
    893. 

  893.     4.6 prompts设计与query意图识别
    894. 

  894.     
    895. 

  895.   </span>
    896. 

  896.   
    897. 

  897. 

  898.       </a>
    899. 

  899.     </li>
    900. 

  900.   
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  901. 

  902.               
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  903.             
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  907.   
    908. 

  908.   
    909. 

  909.   
    910. 

  910.     <li class="md-nav__item">
    911. 

  911.       <a href="4.7%20%E6%A3%80%E7%B4%A2%E7%AD%96%E7%95%A5%E4%B8%8ERAG%E7%B3%BB%E7%BB%9F%E8%AE%BE%E8%AE%A1.html" class="md-nav__link">
    912. 

  912.         
    913. 

  913.   
    914. 

  914.   
    915. 

  915.   <span class="md-ellipsis">
    916. 

  916.     4.7 检索策略与RAG系统设计
    917. 

  917.     
    918. 

  918.   </span>
    919. 

  919.   
    920. 

  920. 

  921.       </a>
    922. 

  922.     </li>
    923. 

  923.   
    924. 

  924. 

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  928.                 
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  929.   
    930. 

  930.   
    931. 

  931.   
    932. 

  932.   
    933. 

  933.     <li class="md-nav__item">
    934. 

  934.       <a href="4.8%20RAG%E7%B3%BB%E7%BB%9F%E8%BF%90%E8%A1%8C.html" class="md-nav__link">
    935. 

  935.         
    936. 

  936.   
    937. 

  937.   
    938. 

  938.   <span class="md-ellipsis">
    939. 

  939.     4.8 RAG系统运行
    940. 

  940.     
    941. 

  941.   </span>
    942. 

  942.   
    943. 

  943. 

  944.       </a>
    945. 

  945.     </li>
    946. 

  946.   
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  955.   
    956. 

  956.     <li class="md-nav__item">
    957. 

  957.       <a href="4.9%20%E6%96%87%E6%A1%A3%E8%A7%A3%E6%9E%90%E5%B7%A5%E5%85%B7%28%E6%89%A9%E5%B1%95%E8%B5%84%E6%96%99%29.html" class="md-nav__link">
    958. 

  958.         
    959. 

  959.   
    960. 

  960.   
    961. 

  961.   <span class="md-ellipsis">
    962. 

  962.     4.9 文档解析工具(扩展资料)
    963. 

  963.     
    964. 

  964.   </span>
    965. 

  965.   
    966. 

  966. 

  967.       </a>
    968. 

  968.     </li>
    969. 

  969.   
    970. 

  970. 

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    977. 

  977.   
    978. 

  978.   
    979. 

  979.     <li class="md-nav__item">
    980. 

  980.       <a href="4.10%20RAG%E4%B8%AD%E7%9A%84Query%E6%94%B9%E5%86%99%28%E6%89%A9%E5%B1%95%E8%B5%84%E6%96%99%29.html" class="md-nav__link">
    981. 

  981.         
    982. 

  982.   
    983. 

  983.   
    984. 

  984.   <span class="md-ellipsis">
    985. 

  985.     4.10 RAG中的Query改写(扩展资料)
    986. 

  986.     
    987. 

  987.   </span>
    988. 

  988.   
    989. 

  989. 

  990.       </a>
    991. 

  991.     </li>
    992. 

  992.   
    993. 

  993. 

  994.               
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  999.   
    1000. 

  1000.   
    1001. 

  1001.   
    1002. 

  1002.     <li class="md-nav__item">
    1003. 

  1003.       <a href="%E6%95%B0%E6%8D%AE%E9%9B%86%E7%94%9F%E6%88%90%E4%B8%8E%E4%BC%98%E5%8C%96%28%E6%89%A9%E5%B1%95%E8%B5%84%E6%96%99%29.html" class="md-nav__link">
    1004. 

  1004.         
    1005. 

  1005.   
    1006. 

  1006.   
    1007. 

  1007.   <span class="md-ellipsis">
    1008. 

  1008.     数据集生成与优化(扩展资料)
    1009. 

  1009.     
    1010. 

  1010.   </span>
    1011. 

  1011.   
    1012. 

  1012. 

  1013.       </a>
    1014. 

  1014.     </li>
    1015. 

  1015.   
    1016. 

  1016. 

  1017.               
    1018. 

  1018.             
    1019. 

  1019.           </ul>
    1020. 

  1020.         </nav>
    1021. 

  1021.       
    1022. 

  1022.     </li>
    1023. 

  1023.   
    1024. 

  1024. 

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  1037.     <li class="md-nav__item md-nav__item--nested">
    1038. 

  1038.       
    1039. 

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    1040. 

  1040.         
    1041. 

  1041.         <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6">
    1042. 

  1042.         
    1043. 

  1043.           
    1044. 

  1044.           <label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="0">
    1045. 

  1045.             
    1046. 

  1046.   
    1047. 

  1047.   
    1048. 

  1048.   <span class="md-ellipsis">
    1049. 

  1049.     ⑤ RAG系统评估
    1050. 

  1050.     
    1051. 

  1051.   </span>
    1052. 

  1052.   
    1053. 

  1053. 

  1054.             <span class="md-nav__icon md-icon"></span>
    1055. 

  1055.           </label>
    1056. 

  1056.         
    1057. 

  1057.         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
    1058. 

  1058.           <label class="md-nav__title" for="__nav_6">
    1059. 

  1059.             <span class="md-nav__icon md-icon"></span>
    1060. 

  1060.             ⑤ RAG系统评估
    1061. 

  1061.           </label>
    1062. 

  1062.           <ul class="md-nav__list" data-md-scrollfix>
    1063. 

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  1069.   
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  1070.     <li class="md-nav__item">
    1071. 

  1071.       <a href="../%E2%91%A4%20RAG%E7%B3%BB%E7%BB%9F%E8%AF%84%E4%BC%B0/5.1%20RAG%E7%B3%BB%E7%BB%9F%E8%AF%84%E4%BC%B0%E5%B7%A5%E5%85%B7.html" class="md-nav__link">
    1072. 

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    1073. 

  1073.   
    1074. 

  1074.   
    1075. 

  1075.   <span class="md-ellipsis">
    1076. 

  1076.     5.1 RAG系统评估工具
    1077. 

  1077.     
    1078. 

  1078.   </span>
    1079. 

  1079.   
    1080. 

  1080. 

  1081.       </a>
    1082. 

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  1093.     <li class="md-nav__item">
    1094. 

  1094.       <a href="../%E2%91%A4%20RAG%E7%B3%BB%E7%BB%9F%E8%AF%84%E4%BC%B0/5.2%20%E5%AE%9E%E7%8E%B0EnterpriseKB-RAG%E7%B3%BB%E7%BB%9F%E7%9A%84%E8%AF%84%E4%BC%B0.html" class="md-nav__link">
    1095. 

  1095.         
    1096. 

  1096.   
    1097. 

  1097.   
    1098. 

  1098.   <span class="md-ellipsis">
    1099. 

  1099.     5.2 实现企业知识库RAG系统的评估
    1100. 

  1100.     
    1101. 

  1101.   </span>
    1102. 

  1102.   
    1103. 

  1103. 

  1104.       </a>
    1105. 

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    1106. 

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  1117.       <a href="../%E2%91%A4%20RAG%E7%B3%BB%E7%BB%9F%E8%AF%84%E4%BC%B0/5.3%20RAG%E8%AF%84%E4%BC%B0%E6%95%B0%E6%8D%AE%E9%9B%86%E7%9A%84%E6%9E%84%E9%80%A0%28%E6%89%A9%E5%B1%95%29.html" class="md-nav__link">
    1118. 

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    1119. 

  1119.   
    1120. 

  1120.   
    1121. 

  1121.   <span class="md-ellipsis">
    1122. 

  1122.     5.3 RAG评估数据集的构造(扩展)
    1123. 

  1123.     
    1124. 

  1124.   </span>
    1125. 

  1125.   
    1126. 

  1126. 

  1127.       </a>
    1128. 

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    1129. 

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  1132.             
    1133. 

  1133.           </ul>
    1134. 

  1134.         </nav>
    1135. 

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  1151.     <li class="md-nav__item md-nav__item--nested">
    1152. 

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  1155.         <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7">
    1156. 

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  1158.           <label class="md-nav__link" for="__nav_7" id="__nav_7_label" tabindex="0">
    1159. 

  1159.             
    1160. 

  1160.   
    1161. 

  1161.   
    1162. 

  1162.   <span class="md-ellipsis">
    1163. 

  1163.     ⑥ 融合Mysql的RAG系统
    1164. 

  1164.     
    1165. 

  1165.   </span>
    1166. 

  1166.   
    1167. 

  1167. 

  1168.             <span class="md-nav__icon md-icon"></span>
    1169. 

  1169.           </label>
    1170. 

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  1171.         <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_7_label" aria-expanded="false">
    1172. 

  1172.           <label class="md-nav__title" for="__nav_7">
    1173. 

  1173.             <span class="md-nav__icon md-icon"></span>
    1174. 

  1174.             ⑥ 融合Mysql的RAG系统
    1175. 

  1175.           </label>
    1176. 

  1176.           <ul class="md-nav__list" data-md-scrollfix>
    1177. 

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  1259.     6.4 FastAPI和Flask的区别和联系(扩展资料)
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  1311.             ⑦ 企业级生产环境部署
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  1327.     7.1 Docker的原理和基本使用
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  1350.     7.2 服务部署
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    1393. 

  1393.   <a href="#_1" class="md-nav__link">
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  1394.     <span class="md-ellipsis">
    1395. 

  1395.       学习目标
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    1400. 

  1400.       
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    1402. 

  1402.   <a href="#rag" class="md-nav__link">
    1403. 

  1403.     <span class="md-ellipsis">
    1404. 

  1404.       一、RAG系统整体架构介绍
    1405. 

  1405.     </span>
    1406. 

  1406.   </a>
    1407. 

  1407.   
    1408. 

  1408.     <nav class="md-nav" aria-label="一、RAG系统整体架构介绍">
    1409. 

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  1412.   <a href="#1" class="md-nav__link">
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  1414.       1 系统背景
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  1423.       2 模块化架构
    1424. 

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  1427.     <nav class="md-nav" aria-label="2 模块化架构">
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  1431.   <a href="#21" class="md-nav__link">
    1432. 

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    1433. 

  1433.       2.1 整体结构
    1434. 

  1434.     </span>
    1435. 

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    1441. 

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    1442. 

  1442.       2.2 模块详情
    1443. 

  1443.     </span>
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    1454. 

  1454.   <a href="#3" class="md-nav__link">
    1455. 

  1455.     <span class="md-ellipsis">
    1456. 

  1456.       3 代码目录结构
    1457. 

  1457.     </span>
    1458. 

  1458.   </a>
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    1466. 

  1466.       
    1467. 

  1467.         <li class="md-nav__item">
    1468. 

  1468.   <a href="#rag_1" class="md-nav__link">
    1469. 

  1469.     <span class="md-ellipsis">
    1470. 

  1470.       二、RAG系统基本工作流程
    1471. 

  1471.     </span>
    1472. 

  1472.   </a>
    1473. 

  1473.   
    1474. 

  1474.     <nav class="md-nav" aria-label="二、RAG系统基本工作流程">
    1475. 

  1475.       <ul class="md-nav__list">
    1476. 

  1476.         
    1477. 

  1477.           <li class="md-nav__item">
    1478. 

  1478.   <a href="#1_1" class="md-nav__link">
    1479. 

  1479.     <span class="md-ellipsis">
    1480. 

  1480.       1 步骤
    1481. 

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    1488. 

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    1489. 

  1489.       2 流程图
    1490. 

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    1501. 

  1501.   <a href="#_2" class="md-nav__link">
    1502. 

  1502.     <span class="md-ellipsis">
    1503. 

  1503.       本章小结
    1504. 

  1504.     </span>
    1505. 

  1505.   </a>
    1506. 

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  1518.             <div class="md-content" data-md-component="content">
    1519. 

  1519.               <article class="md-content__inner md-typeset">
    1520. 

  1520.                 
    1521. 

  1521.                   
    1522. 

  1522. 

  1523. 

  1524. 

  1525.   <h1>4.1 整体架构与工程流程</h1>
    1526. 

  1526. 

  1527. <h2 id="_1">学习目标<a class="headerlink" href="#_1" title="Permanent link">¶</a></h2>
    1528. 

  1528. <ul>
    1529. 

  1529. <li>1.理解RAG系统的基本原理及其在企业知识管理场景的应用场景。</li>
    1530. 

  1530. <li>2.掌握企业知识库RAG系统的模块化设计和各模块的核心功能。</li>
    1531. 

  1531. <li>3.熟悉RAG系统从查询到生成回答的完整工作流程。</li>
    1532. 

  1532. </ul>
    1533. 

  1533. <hr>
    1534. 

  1534. <h2 id="rag">一、RAG系统整体架构介绍<a class="headerlink" href="#rag" title="Permanent link">¶</a></h2>
    1535. 

  1535. <p>EnterpriseKB-RAG智慧问答系统是一个基于<strong>RAG（Retrieval-Augmented Generation，检索增强生成）</strong>技术的智能问答平台，专为IT知识库内部赋能设计。它通过结合信息检索和生成式模型，从知识库中提取相关信息并生成准确、自然的回答。系统采用工程化的模块化设计，代码结构清晰，便于开发、维护和扩展。</p>
    1536. 

  1536. <h3 id="1">1 系统背景<a class="headerlink" href="#1" title="Permanent link">¶</a></h3>
    1537. 

  1537. <p>RAG技术通过检索外部知识库增强大语言模型的回答能力，特别适用于需要专业知识的场景。EnterpriseKB-RAG的目标是为IT学习者提供高效、准确的答疑服务，支持多种文档格式和灵活的检索策略。</p>
    1538. 

  1538. <h3 id="2">2 模块化架构<a class="headerlink" href="#2" title="Permanent link">¶</a></h3>
    1539. 

  1539. <h4 id="21">2.1 整体结构<a class="headerlink" href="#21" title="Permanent link">¶</a></h4>
    1540. 

  1540. <p>系统的代码组织分为以下几个核心模块：</p>
    1541. 

  1541. <ul>
    1542. 

  1542. <li><strong><code>base/</code></strong>：基础支持模块，负责配置、日志处理。</li>
    1543. 

  1543. <li><strong><code>core/</code></strong>：核心逻辑模块，实现RAG的关键功能。</li>
    1544. 

  1544. <li><strong><code>main.py</code></strong>：系统运行入口，支持数据处理和交互查询。</li>
    1545. 

  1545. </ul>
    1546. 

  1546. <h4 id="22">2.2 模块详情<a class="headerlink" href="#22" title="Permanent link">¶</a></h4>
    1547. 

  1547. <ul>
    1548. 

  1548. <li><strong>base模块</strong>：</li>
    1549. 

  1549. <li><code>config.py</code>：管理系统配置，如API密钥、模型选择等。</li>
    1550. 

  1550. <li><code>logger.py</code>：记录系统运行日志，便于调试和监控。</li>
    1551. 

  1551. <li><strong>core模块</strong>：</li>
    1552. 

  1552. <li><code>document_processor.py</code>：处理输入文档，分块并准备向量存储。</li>
    1553. 

  1553. <li><code>prompts.py</code>：管理Prompt模板，支持不同任务。</li>
    1554. 

  1554. <li><code>query_classifier.py</code>：分类用户查询类型。</li>
    1555. 

  1555. <li><code>strategy_selector.py</code>：选择合适的检索策略。</li>
    1556. 

  1556. <li><code>vector_store.py</code>：管理向量数据库，进行文档存储和检索。</li>
    1557. 

  1557. <li><code>rag_system.py</code>：整合RAG流程，生成最终回答。</li>
    1558. 

  1558. <li><strong>main.py</strong>：命令行交互入口，测试和运行系统。</li>
    1559. 

  1559. </ul>
    1560. 

  1560. <h3 id="3">3 代码目录结构<a class="headerlink" href="#3" title="Permanent link">¶</a></h3>
    1561. 

  1561. <div class="highlight"><pre><span></span><code>integrated_qa_system/
    1562. 

  1562. ├── config.ini                 # 配置文件，包含所有模块的配置
    1563. 

  1563. ├── base/
    1564. 

  1564. │   ├── config.py              # 配置管理，加载 config.ini
    1565. 

  1565. │   ├── logger.py              # 日志设置
    1566. 

  1566. ├── rag_qa/
    1567. 

  1567. │   ├── core/
    1568. 

  1568. │   │   ├── prompts.py         # RAG 提示模板
    1569. 

  1569. │   │   ├── query_classifier.py # 查询分类器
    1570. 

  1570. │   │   ├── strategy_selector.py # 检索策略选择器
    1571. 

  1571. │   │   ├── vector_store.py    # 向量存储与检索
    1572. 

  1572. │   │   ├── rag_system.py      # RAG 系统核心逻辑
    1573. 

  1573. │   ├── main.py                # RAG 系统独立入口，支持存储和查询
    1574. 

  1574. ├── requirements.txt           # 依赖文件
    1575. 

  1575. └── logs/
    1576. 

  1576.     └── app.log                # 日志文件
    1577. 

  1577. </code></pre></div>
    1578. 

  1578. <hr>
    1579. 

  1579. <h2 id="rag_1">二、RAG系统基本工作流程<a class="headerlink" href="#rag_1" title="Permanent link">¶</a></h2>
    1580. 

  1580. <h3 id="1_1">1 步骤<a class="headerlink" href="#1_1" title="Permanent link">¶</a></h3>
    1581. 

  1581. <p>企业知识库RAG系统的工作流程分为四个主要步骤，确保从用户查询到生成回答的高效性和准确性：</p>
    1582. 

  1582. <ol>
    1583. 

  1583. <li><strong>查询分类</strong>：</li>
    1584. 

  1584. <li>系统首先判断查询类型（如“通用知识”或“企业知识”）。</li>
    1585. 

  1585. <li>
    1586. 

  1586. <p>通用知识直接由大语言模型回答，企业知识进入检索流程。</p>
    1587. 

  1587. </li>
    1588. 

  1588. <li>
    1589. 

  1589. <p><strong>策略选择</strong>：</p>
    1590. 

  1590. </li>
    1591. 

  1591. <li>
    1592. 

  1592. <p>根据查询特点选择检索策略：</p>
    1593. 

  1593. <ul>
    1594. 

  1594. <li><strong>直接检索</strong>：适用于明确查询。</li>
    1595. 

  1595. <li><strong>HyDE检索</strong>：适用于抽象问题，生成假设答案后检索。</li>
    1596. 

  1596. <li><strong>子查询检索</strong>：分解复杂查询。</li>
    1597. 

  1597. <li><strong>回溯检索</strong>：简化复杂问题后检索。</li>
    1598. 

  1598. </ul>
    1599. 

  1599. </li>
    1600. 

  1600. <li>
    1601. 

  1601. <p><strong>文档检索</strong>：</p>
    1602. 

  1602. </li>
    1603. 

  1603. <li>使用<code>vector_store.py</code>从向量数据库中检索相关文档。</li>
    1604. 

  1604. <li>
    1605. 

  1605. <p>支持稠密向量和稀疏向量的混合检索，结果经过重排序优化。</p>
    1606. 

  1606. </li>
    1607. 

  1607. <li>
    1608. 

  1608. <p><strong>生成回答</strong>：</p>
    1609. 

  1609. </li>
    1610. 

  1610. <li>将检索到的文档作为上下文，结合用户查询输入大语言模型。</li>
    1611. 

  1611. <li>生成自然语言回答，若无答案则引导人工支持。</li>
    1612. 

  1612. </ol>
    1613. 

  1613. <h3 id="2_1">2 流程图<a class="headerlink" href="#2_1" title="Permanent link">¶</a></h3>
    1614. 

  1614. <div align="center"><img src="../img/lc_04.png" style="zoom:50%"><img></div>
    1615. 

  1615. 

  1616. <h2 id="_2">本章小结<a class="headerlink" href="#_2" title="Permanent link">¶</a></h2>
    1617. 

  1617. <p>EnterpriseKB-RAG智慧问答系统通过工程化的模块化设计，实现了从查询分类到生成回答的完整流程。其核心优势包括：</p>
    1618. 

  1618. <ul>
    1619. 

  1619. <li>
    1620. 

  1620. <p><strong>模块化</strong>：代码分工明确，便于维护和扩展。</p>
    1621. 

  1621. </li>
    1622. 

  1622. <li>
    1623. 

  1623. <p><strong>灵活性</strong>：支持多种检索策略，适应不同查询需求。</p>
    1624. 

  1624. </li>
    1625. 

  1625. <li><strong>实用性</strong>：结合IT知识库场景，提供专业回答。</li>
    1626. 

  1626. </ul>
    1627. 

  1627. 

  1628. 

  1629. 

  1630. 

  1631. 

  1632. 

  1633. 

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