清单

此笔记本介绍如何使用 Manifest 和 LangChain。

有关manifest 的更多详细信息以及如何像本例中那样将其与本地 huggingface 模型一起使用，请参阅 https://github.com/HazyResearch/manifest

另一个 将 Manifest 与 Langchain 一起使用 的示例。

%pip install --upgrade --quiet  manifest-ml

from langchain_community.llms.manifest import ManifestWrapper
from manifest import Manifest

API 参考：ManifestWrapper

manifest = Manifest(
    client_name="huggingface", client_connection="http://127.0.0.1:5000"
)
print(manifest.client_pool.get_current_client().get_model_params())

llm = ManifestWrapper(
    client=manifest, llm_kwargs={"temperature": 0.001, "max_tokens": 256}
)

# Map reduce example
from langchain.chains.mapreduce import MapReduceChain
from langchain_core.prompts import PromptTemplate
from langchain_text_splitters import CharacterTextSplitter

_prompt = """Write a concise summary of the following:


{text}


CONCISE SUMMARY:"""
prompt = PromptTemplate.from_template(_prompt)

text_splitter = CharacterTextSplitter()

mp_chain = MapReduceChain.from_params(llm, prompt, text_splitter)

API 参考：MapReduceChain | PromptTemplate | CharacterTextSplitter

with open("../../how_to/state_of_the_union.txt") as f:
    state_of_the_union = f.read()
mp_chain.run(state_of_the_union)

'President Obama delivered his annual State of the Union address on Tuesday night, laying out his priorities for the coming year. Obama said the government will provide free flu vaccines to all Americans, ending the government shutdown and allowing businesses to reopen. The president also said that the government will continue to send vaccines to 112 countries, more than any other nation. "We have lost so much to COVID-19," Trump said. "Time with one another. And worst of all, so much loss of life." He said the CDC is working on a vaccine for kids under 5, and that the government will be ready with plenty of vaccines when they are available. Obama says the new guidelines are a "great step forward" and that the virus is no longer a threat. He says the government is launching a "Test to Treat" initiative that will allow people to get tested at a pharmacy and get antiviral pills on the spot at no cost. Obama says the new guidelines are a "great step forward" and that the virus is no longer a threat. He says the government will continue to send vaccines to 112 countries, more than any other nation. "We are coming for your'

比较 HF 模型

from langchain.model_laboratory import ModelLaboratory

manifest1 = ManifestWrapper(
    client=Manifest(
        client_name="huggingface", client_connection="http://127.0.0.1:5000"
    ),
    llm_kwargs={"temperature": 0.01},
)
manifest2 = ManifestWrapper(
    client=Manifest(
        client_name="huggingface", client_connection="http://127.0.0.1:5001"
    ),
    llm_kwargs={"temperature": 0.01},
)
manifest3 = ManifestWrapper(
    client=Manifest(
        client_name="huggingface", client_connection="http://127.0.0.1:5002"
    ),
    llm_kwargs={"temperature": 0.01},
)
llms = [manifest1, manifest2, manifest3]
model_lab = ModelLaboratory(llms)

API 参考：ModelLaboratory

model_lab.compare("What color is a flamingo?")

Input:
What color is a flamingo?

ManifestWrapper
Params: {'model_name': 'bigscience/T0_3B', 'model_path': 'bigscience/T0_3B', 'temperature': 0.01}
pink

ManifestWrapper
Params: {'model_name': 'EleutherAI/gpt-neo-125M', 'model_path': 'EleutherAI/gpt-neo-125M', 'temperature': 0.01}
A flamingo is a small, round

ManifestWrapper
Params: {'model_name': 'google/flan-t5-xl', 'model_path': 'google/flan-t5-xl', 'temperature': 0.01}
pink

相关

• LLM 概念指南
• LLM 操作指南