如果使用自己的 CSV 文件,我们使用LangChain 的CSVLoader类加载它 ifuploaded_file:#use tempfile because CSVLoader only accepts a file_pathwithtempfile.NamedTemporaryFile(delete=False)astmp_file:tmp_file.write(uploaded_file.getvalue())tmp_file_path=tmp_file.nameloader=CSVLoader(file_path=tmp_file_...
LangChain 加载CSV数据 ❮ 上一页下一页 ❯ 加载CSV 逗号分隔值(CSV)文件是使用逗号分隔值的分隔文本文件。文件的每一行都是一个数据记录。每个记录由一个或多个由逗号分隔的字段组成。 加载CSV数据,每一行作为一个文档 fromlangchain_community.document_loaders.csv_loaderimportCSVLoader# 定义csv加载器,加载...
The CSVLoader retriever in LangChain is used to load the dataset to train the Machine Learning models or Large Language Models to solve NLP problems. It enables the user to get useful information from the data or generate text from the document according to input provided by the user. To le...
fromlangchain_community.document_loaders.csv_loaderimportUnstructuredCSVLoader loader=UnstructuredCSVLoader( file_path="example_data/mlb_teams_2012.csv",mode="elements" ) docs=loader.load() print(docs[0].metadata["text_as_html"]) API Reference:UnstructuredCSVLoader ...
您的问题是关于如何从langchain_community.document_loaders.csv_loader模块中导入csvloader类。不过,根据我查阅的资料和LangChain的常规命名习惯,正确的类名应该是CSVLoader而不是csvloader。在Python中,类名通常使用驼峰命名法(CamelCase),即每个单词的首字母大写,其余字母小写。 以下是正确的导入方式: python from lan...
使用 CSVLoader 加载数据，创建一个向量存储（我们在这里使用 Chroma）来存储带有 OpenAI 嵌入的嵌入数据...
However, if you use DirectoryLoader, then I suppose that you may have to edit the source file (langchain/document_loaders/csv_loader.py) for langchain package. if csv_args.get("delimiter",None) and csv_args.get("quotechar",None): self.csv_args = csv_args else: self.csv_args = { ...
use cases. Furthermore, we propose a revolutionary solution in the form of a customized CSV data loader that incorporates metadata information. By leveragingLangChain’s Self-Querying API alongside the new CSV data loader, we can extract information with significantly improved performance and precision...
比如Pinecone或Metal。然后根据你是否需要内存，使用RetrievalQA链或ConversationRetrievalChain。
7 changes: 7 additions & 0 deletions 7 src/libs/langchain/loaders/csv/index.ts Original file line numberDiff line numberDiff line change @@ -0,0 +1,7 @@ import { CSVLoader } from '@langchain/community/document_loaders/fs/csv'; export const CsVLoader = async (fileBlob: Blob) =>...