使用 LlamaParse 进行高级 RAG
安装¶
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!pip install llama-index
!pip install llama-index-postprocessor-flag-embedding-reranker
!pip install git+https://github.com/FlagOpen/FlagEmbedding.git
!pip install llama-parse
!pip install llama-index !pip install llama-index-postprocessor-flag-embedding-reranker !pip install git+https://github.com/FlagOpen/FlagEmbedding.git !pip install llama-parse
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Installing collected packages: striprtf, pytz, dirtyjson, wrapt, tzdata, typing-extensions, tqdm, tenacity, regex, mypy-extensions, multidict, marshmallow, joblib, jiter, h11, greenlet, fsspec, frozenlist, click, beautifulsoup4, async-timeout, annotated-types, aiohappyeyeballs, yarl, typing-inspect, tiktoken, SQLAlchemy, pypdf, pydantic-core, pandas, nltk, httpcore, deprecated, aiosignal, pydantic, httpx, dataclasses-json, aiohttp, openai, llama-index-core, llama-cloud, llama-parse, llama-index-readers-file, llama-index-legacy, llama-index-indices-managed-llama-cloud, llama-index-embeddings-openai, llama-index-readers-llama-parse, llama-index-llms-openai, llama-index-agent-openai, llama-index-program-openai, llama-index-question-gen-openai, llama-index-multi-modal-llms-openai, llama-index-cli, llama-index
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WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pythonlang.cn/warnings/venv
[notice] A new release of pip is available: 23.3.1 -> 24.2
[notice] To update, run: python -m pip install --upgrade pip
Collecting llama-index-postprocessor-flag-embedding-reranker
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WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pythonlang.cn/warnings/venv
[notice] A new release of pip is available: 23.3.1 -> 24.2
[notice] To update, run: python -m pip install --upgrade pip
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Successfully installed FlagEmbedding-1.2.11 accelerate-0.34.0 datasets-2.21.0 dill-0.3.8 fsspec-2024.6.1 huggingface-hub-0.24.6 multiprocess-0.70.16 peft-0.12.0 pyarrow-17.0.0 requests-2.32.3 safetensors-0.4.4 scikit-learn-1.5.1 scipy-1.14.1 sentence_transformers-3.0.1 threadpoolctl-3.5.0 tokenizers-0.19.1 transformers-4.44.2 xxhash-3.5.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pythonlang.cn/warnings/venv
[notice] A new release of pip is available: 23.3.1 -> 24.2
[notice] To update, run: python -m pip install --upgrade pip
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WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pythonlang.cn/warnings/venv
[notice] A new release of pip is available: 23.3.1 -> 24.2
[notice] To update, run: python -m pip install --upgrade pip
下载数据¶
输入 [ ]
已复制！
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/10q/uber_10q_march_2022.pdf' -O './uber_10q_march_2022.pdf'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/10q/uber_10q_march_2022.pdf' -O './uber_10q_march_2022.pdf'
--2024-09-05 07:01:47-- https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/10q/uber_10q_march_2022.pdf Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 185.199.110.133, 185.199.109.133, 185.199.108.133, ... Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|185.199.110.133|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 1260185 (1.2M) [application/octet-stream] Saving to: ‘./uber_10q_march_2022.pdf’ ./uber_10q_march_20 100%[===================>] 1.20M --.-KB/s in 0.02s 2024-09-05 07:01:48 (77.6 MB/s) - ‘./uber_10q_march_2022.pdf’ saved [1260185/1260185]
设置 API 密钥¶
输入 [ ]
已复制！
# llama-parse is async-first, running the async code in a notebook requires the use of nest_asyncio
import nest_asyncio
nest_asyncio.apply()
import os
# API access to llama-cloud
os.environ["LLAMA_CLOUD_API_KEY"] = "llx-..."
# Using OpenAI API for embeddings/llms
os.environ["OPENAI_API_KEY"] = "sk-..."
# llama-parse 是异步优先的，在 notebook 中运行异步代码需要使用 nest_asyncio import nest_asyncio nest_asyncio.apply() import os # API 访问 llama-cloud os.environ["LLAMA_CLOUD_API_KEY"] = "llx-..." # 使用 OpenAI API 进行嵌入/大型语言模型 os.environ["OPENAI_API_KEY"] = "sk-..."
设置大型语言模型和嵌入模型¶
输入 [ ]
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from llama_index.llms.openai import OpenAI
from llama_index.embeddings.openai import OpenAIEmbedding
from llama_index.core import VectorStoreIndex
from llama_index.core import Settings
embed_model = OpenAIEmbedding(model="text-embedding-3-small")
llm = OpenAI(model="gpt-3.5-turbo-0125")
Settings.llm = llm
Settings.embed_model = embed_model
from llama_index.llms.openai import OpenAI from llama_index.embeddings.openai import OpenAIEmbedding from llama_index.core import VectorStoreIndex from llama_index.core import Settings embed_model = OpenAIEmbedding(model="text-embedding-3-small") llm = OpenAI(model="gpt-3.5-turbo-0125") Settings.llm = llm Settings.embed_model = embed_model
用于 PDF 解析的 LlamaParse PDF 阅读器¶
我们比较两种不同的检索/查询引擎策略。
- 使用原始 Markdown 文本作为构建索引的节点，并应用简单的查询引擎生成结果。
- 使用 MarkdownElementNodeParser 解析 LlamaParse 输出的 Markdown 结果，并构建递归检索器查询引擎进行生成。
输入 [ ]
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# LlamaParse PDF reader for PDF Parsing
from llama_parse import LlamaParse
documents = LlamaParse(result_type="markdown").load_data(
"./uber_10q_march_2022.pdf"
)
# Started parsing the file under job_id b76a572b-d2bb-42ae-bad9-b9810049f1af
# 用于 PDF 解析的 LlamaParse PDF 阅读器 from llama_parse import LlamaParse documents = LlamaParse(result_type="markdown").load_data( "./uber_10q_march_2022.pdf" ) # 已开始解析文件，作业 ID 为 b76a572b-d2bb-42ae-bad9-b9810049f1af
Started parsing the file under job_id 0ef2f65b-9cab-4ca8-b221-d20f1f6d1336
输入 [ ]
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print(documents[0].text[:1000] + "...")
print(documents[0].text[:1000] + "...")
# UNITED STATES SECURITIES AND EXCHANGE COMMISSION # Washington, D.C. 20549 # FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from_____ to _____ Commission File Number: 001-38902 # UBER TECHNOLOGIES, INC. (Exact name of registrant as specified in its charter) Not Applicable (Former name, former address and former fiscal year, if changed since last report) |Delaware|45-2647441| |---|---| |(State or other jurisdiction of incorporation or organization)|(I.R.S. Employer Identification No.)| |1515 3rd Street|San Francisco, California 94158| |(Address of principal executive offices, including zip code)|(415) 612-8582| |(Registrant’s telephone number, including area code)| | # Securities registered pursuant to Section 12(b) of the Act: |Title of each c...
输入 [ ]
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from llama_index.core.node_parser import MarkdownElementNodeParser
node_parser = MarkdownElementNodeParser(
llm=OpenAI(model="gpt-3.5-turbo-0125"), num_workers=8
)
nodes = node_parser.get_nodes_from_documents(documents)
from llama_index.core.node_parser import MarkdownElementNodeParser node_parser = MarkdownElementNodeParser( llm=OpenAI(model="gpt-3.5-turbo-0125"), num_workers=8 ) nodes = node_parser.get_nodes_from_documents(documents)
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输入 [ ]
已复制！
text_nodes, index_nodes = node_parser.get_nodes_and_objects(nodes)
text_nodes, index_nodes = node_parser.get_nodes_and_objects(nodes)
输入 [ ]
已复制！
text_nodes[0]
text_nodes[0]
输出 [ ]
TextNode(id_='c6ffea61-1221-40e3-b0e0-5b24cfbd02d5', embedding=None, metadata={}, excluded_embed_metadata_keys=[], excluded_llm_metadata_keys=[], relationships={<NodeRelationship.SOURCE: '1'>: RelatedNodeInfo(node_id='33b7b29c-8eba-458b-a25f-bb8f88951e92', node_type=<ObjectType.DOCUMENT: '4'>, metadata={}, hash='3d4ec5b02a042598b0ea47cdac56453869c17b531a10f60343e9598e05a9390e'), <NodeRelationship.NEXT: '3'>: RelatedNodeInfo(node_id='de618b65-c78a-4390-8536-4e9e295c0e49', node_type=<ObjectType.INDEX: '3'>, metadata={'col_schema': 'Column: Delaware\nType: string\nSummary: State or other jurisdiction of incorporation or organization\n\nColumn: 45-2647441\nType: string\nSummary: I.R.S. Employer Identification No.'}, hash='c008153189b8dd031a3e5e694239a50ebd21f42602676f072d9746241fcef858')}, text='UNITED STATES SECURITIES AND EXCHANGE COMMISSION\n\n Washington, D.C. 20549\n\n FORM 10-Q\n\n(Mark One)\n\n☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934\n\nFor the quarterly period ended March 31, 2022\n\nOR\n\n☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934\n\nFor the transition period from_____ to _____\n\nCommission File Number: 001-38902\n\n UBER TECHNOLOGIES, INC.\n\n(Exact name of registrant as specified in its charter)\n\nNot Applicable\n\n(Former name, former address and former fiscal year, if changed since last report)', mimetype='text/plain', start_char_idx=1, end_char_idx=595, text_template='{metadata_str}\n\n{content}', metadata_template='{key}: {value}', metadata_seperator='\n')
输入 [ ]
已复制！
index_nodes[0]
index_nodes[0]
输出 [ ]
IndexNode(id_='de618b65-c78a-4390-8536-4e9e295c0e49', embedding=None, metadata={'col_schema': 'Column: Delaware\nType: string\nSummary: State or other jurisdiction of incorporation or organization\n\nColumn: 45-2647441\nType: string\nSummary: I.R.S. Employer Identification No.'}, excluded_embed_metadata_keys=['col_schema'], excluded_llm_metadata_keys=[], relationships={<NodeRelationship.SOURCE: '1'>: RelatedNodeInfo(node_id='33b7b29c-8eba-458b-a25f-bb8f88951e92', node_type=<ObjectType.DOCUMENT: '4'>, metadata={}, hash='3d4ec5b02a042598b0ea47cdac56453869c17b531a10f60343e9598e05a9390e'), <NodeRelationship.PREVIOUS: '2'>: RelatedNodeInfo(node_id='c6ffea61-1221-40e3-b0e0-5b24cfbd02d5', node_type=<ObjectType.TEXT: '1'>, metadata={}, hash='0cafbb2bbffe3085738e748c9ed19c5b88f6b300d876820fc3caa7afa8f0627f'), <NodeRelationship.NEXT: '3'>: RelatedNodeInfo(node_id='c57f8dab-7b69-4850-8885-6a9cf0f531f9', node_type=<ObjectType.TEXT: '1'>, metadata={'table_df': "{'Delaware': {0: '(State or other jurisdiction of incorporation or organization)', 1: '1515 3rd Street', 2: '(Address of principal executive offices, including zip code)', 3: '(Registrant’s telephone number, including area code)'}, '45-2647441': {0: '(I.R.S. Employer Identification No.)', 1: 'San Francisco, California 94158', 2: '(415) 612-8582', 3: ' '}}", 'table_summary': "Table providing information about a company's incorporation details, address of principal executive offices, and contact information.,\nwith the following columns:\n- Delaware: State or other jurisdiction of incorporation or organization\n- 45-2647441: I.R.S. Employer Identification No.\n"}, hash='fadc844962620525c1d3c8d7ff1693a090642818928f9ce7600117258a39aa04')}, text="Table providing information about a company's incorporation details, address of principal executive offices, and contact information.,\nwith the following columns:\n- Delaware: State or other jurisdiction of incorporation or organization\n- 45-2647441: I.R.S. Employer Identification No.\n", mimetype='text/plain', start_char_idx=601, end_char_idx=919, text_template='{metadata_str}\n\n{content}', metadata_template='{key}: {value}', metadata_seperator='\n', index_id='c57f8dab-7b69-4850-8885-6a9cf0f531f9', obj=TextNode(id_='c57f8dab-7b69-4850-8885-6a9cf0f531f9', embedding=None, metadata={'table_df': "{'Delaware': {0: '(State or other jurisdiction of incorporation or organization)', 1: '1515 3rd Street', 2: '(Address of principal executive offices, including zip code)', 3: '(Registrant’s telephone number, including area code)'}, '45-2647441': {0: '(I.R.S. Employer Identification No.)', 1: 'San Francisco, California 94158', 2: '(415) 612-8582', 3: ' '}}", 'table_summary': "Table providing information about a company's incorporation details, address of principal executive offices, and contact information.,\nwith the following columns:\n- Delaware: State or other jurisdiction of incorporation or organization\n- 45-2647441: I.R.S. Employer Identification No.\n"}, excluded_embed_metadata_keys=['table_df', 'table_summary'], excluded_llm_metadata_keys=['table_df', 'table_summary'], relationships={<NodeRelationship.SOURCE: '1'>: RelatedNodeInfo(node_id='33b7b29c-8eba-458b-a25f-bb8f88951e92', node_type=<ObjectType.DOCUMENT: '4'>, metadata={}, hash='3d4ec5b02a042598b0ea47cdac56453869c17b531a10f60343e9598e05a9390e'), <NodeRelationship.PREVIOUS: '2'>: RelatedNodeInfo(node_id='de618b65-c78a-4390-8536-4e9e295c0e49', node_type=<ObjectType.INDEX: '3'>, metadata={'col_schema': 'Column: Delaware\nType: string\nSummary: State or other jurisdiction of incorporation or organization\n\nColumn: 45-2647441\nType: string\nSummary: I.R.S. Employer Identification No.'}, hash='c008153189b8dd031a3e5e694239a50ebd21f42602676f072d9746241fcef858'), <NodeRelationship.NEXT: '3'>: RelatedNodeInfo(node_id='c0fa90a9-fe14-46fa-8434-cd70e134d40e', node_type=<ObjectType.TEXT: '1'>, metadata={}, hash='cc6b1c09572e3a0bd06a93ccea32a5562b36a393a36ede3852f4a5fc946c51fd')}, text="Table providing information about a company's incorporation details, address of principal executive offices, and contact information.,\nwith the following columns:\n- Delaware: State or other jurisdiction of incorporation or organization\n- 45-2647441: I.R.S. Employer Identification No.\n\n|Delaware|45-2647441|\n|---|---|\n|(State or other jurisdiction of incorporation or organization)|(I.R.S. Employer Identification No.)|\n|1515 3rd Street|San Francisco, California 94158|\n|(Address of principal executive offices, including zip code)|(415) 612-8582|\n|(Registrant’s telephone number, including area code)| |\n", mimetype='text/plain', start_char_idx=601, end_char_idx=919, text_template='{metadata_str}\n\n{content}', metadata_template='{key}: {value}', metadata_seperator='\n'))
构建索引¶
输入 [ ]
已复制！
recursive_index = VectorStoreIndex(nodes=text_nodes + index_nodes)
raw_index = VectorStoreIndex.from_documents(documents)
recursive_index = VectorStoreIndex(nodes=text_nodes + index_nodes) raw_index = VectorStoreIndex.from_documents(documents)
创建查询引擎¶
输入 [ ]
已复制！
from llama_index.postprocessor.flag_embedding_reranker import (
FlagEmbeddingReranker,
)
reranker = FlagEmbeddingReranker(
top_n=5,
model="BAAI/bge-reranker-large",
)
from llama_index.postprocessor.flag_embedding_reranker import ( FlagEmbeddingReranker, ) reranker = FlagEmbeddingReranker( top_n=5, model="BAAI/bge-reranker-large", )
tokenizer_config.json: 0%| | 0.00/443 [00:00<?, ?B/s]
sentencepiece.bpe.model: 0%| | 0.00/5.07M [00:00<?, ?B/s]
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输入 [ ]
已复制！
recursive_query_engine = recursive_index.as_query_engine(
similarity_top_k=15, node_postprocessors=[reranker], verbose=True
)
recursive_query_engine = recursive_index.as_query_engine( similarity_top_k=15, node_postprocessors=[reranker], verbose=True )
输入 [ ]
已复制！
raw_query_engine = raw_index.as_query_engine(
similarity_top_k=15, node_postprocessors=[reranker]
)
raw_query_engine = raw_index.as_query_engine( similarity_top_k=15, node_postprocessors=[reranker] )
使用两种不同的查询引擎进行查询¶
我们比较基础查询引擎与带表格的递归查询引擎
表格查询任务：表格问答查询¶
输入 [ ]
已复制！
query = "What is the change of free cash flow and what is the rate from the financial and operational highlights?"
response_1 = raw_query_engine.query(query)
print("\n************New LlamaParse+ Basic Query Engine************")
print(response_1)
response_2 = recursive_query_engine.query(query)
print(
"\n************New LlamaParse+ Recursive Retriever Query Engine************"
)
print(response_2)
query = "自由现金流的变化是多少？财务和运营亮点中的比率是多少？" response_1 = raw_query_engine.query(query) print("\n************新 LlamaParse + 基础查询引擎************") print(response_1) response_2 = recursive_query_engine.query(query) print( "\n************新 LlamaParse + 递归检索器查询引擎************" ) print(response_2)
************New LlamaParse+ Basic Query Engine************ The change in free cash flow from the financial and operational highlights is an increase of $826 million, from a net cash used in operating activities of $611 million in 2021 to net cash provided by operating activities of $215 million in 2022. The rate of this change is a positive improvement. Retrieval entering 015f9778-1f7c-44cd-9e26-90f2c9e21550: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering 5e8febd0-0c43-4552-9499-9465674b8877: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering d3c8d59b-9d7e-4088-94e9-3e58aba09f10: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering 25385e8f-24df-4660-959b-c499cc220246: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering 6b48fe6f-a60e-425a-aba5-22b62d1b4512: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering aa60761d-1d8a-4896-aef9-e41553f17558: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering d0634d58-0589-47cb-9921-d2d57d88240f: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? Retrieval entering 492b36c1-8b39-4db9-8dca-dd9f6c488a9d: TextNode Retrieving from object TextNode with query What is the change of free cash flow and what is the rate from the financial and operational highlights? ************New LlamaParse+ Recursive Retriever Query Engine************ The change in free cash flow from 2021 to 2022 is an increase of $635 million. This change represents a significant improvement in free cash flow performance over the period.
