6大核心模块(Modules)
LLMS
Manifest

LangChain

Manifest 清单#

本教程介绍了如何使用Manifest和LangChain。

有关更详细的信息清单,以及如何像本示例中一样在本地hugginface模型中使用它,请参见https://github.com/HazyResearch/manifest (opens in a new tab)

使用Manifest和Langchain的另一个示例 (opens in a new tab)

!pip install manifest-ml
 
from manifest import Manifest
from langchain.llms.manifest import ManifestWrapper
 
manifest = Manifest(
    client_name = "huggingface",
    client_connection = "http://127.0.0.1:5000"
)
print(manifest.client.get_model_params())
 
llm = ManifestWrapper(client=manifest, llm_kwargs={"temperature": 0.001, "max_tokens": 256})
 
# Map reduce example
from langchain import PromptTemplate
from langchain.text_splitter import CharacterTextSplitter
from langchain.chains.mapreduce import MapReduceChain
 
_prompt = """Write a concise summary of the following:
 
{text}
 
CONCISE SUMMARY:"""
prompt = PromptTemplate(template=_prompt, input_variables=["text"])
 
text_splitter = CharacterTextSplitter()
 
mp_chain = MapReduceChain.from_params(llm, prompt, text_splitter)
 
with open('../../../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)
 
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