Contextual compression in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the ContextualCompressionRetriever from langchain.

LangChain

from langchain.retrievers import [1]

Drag options to blanks, or click blank then click option'

ASimpleRetriever

BVectorStoreRetriever

CContextualCompressionRetriever

DCompressionRetriever

Attempts:

3 left

💡 Hint

Common Mistakes

Importing a similarly named but incorrect retriever class.

Misspelling the class name.

The ContextualCompressionRetriever is the correct class to import for contextual compression in LangChain retrievers.

2fill in blank

medium

Complete the code to create a ContextualCompressionRetriever using a base retriever named base_retriever.

LangChain

compression_retriever = ContextualCompressionRetriever(base_retriever=[1])

Drag options to blanks, or click blank then click option'

Abase_retriever

Bretriever

Ccompressor

Dbase_compressor

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a wrong variable name that does not exist.

Confusing parameter names.

The base_retriever parameter expects a retriever instance, here named base_retriever.

3fill in blank

hard

Fix the error in the code to correctly create a ContextualCompressionRetriever with a compressor named compressor_instance.

LangChain

retriever = ContextualCompressionRetriever(base_compressor=[1])

Drag options to blanks, or click blank then click option'

Acompress

Bcompressor_instance

CcompressorInstance

Dcompressor

Attempts:

3 left

💡 Hint

Common Mistakes

Using camelCase instead of snake_case variable names.

Passing a variable that is not defined.

The variable holding the compressor instance is compressor_instance, which must be passed exactly.

4fill in blank

hard

Fill both blanks to create a ContextualCompressionRetriever with a base retriever and return_source_documents=True.

LangChain

retriever = ContextualCompressionRetriever(base_retriever=[1], [2]=True)

Drag options to blanks, or click blank then click option'

Abase_retriever

Bcompressor

Creturn_source_documents

Duse_compression

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing parameter names for the boolean flag.

Passing wrong variable names.

The first blank is the base retriever variable base_retriever. The second blank is the boolean parameter return_source_documents to enable returning source docs.

5fill in blank

hard

Fill all three blanks to create a ContextualCompressionRetriever with a base retriever, a compressor, and enable returning source documents.

LangChain

retriever = ContextualCompressionRetriever(base_retriever=[1], base_compressor=[2], [3]=True)

Drag options to blanks, or click blank then click option'

Abase_retriever

Bcompressor_instance

Creturn_source_documents

Duse_compression

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up variable names for base retriever and compressor.

Using incorrect parameter names for the boolean flag.

The blanks correspond to the base retriever variable, the compressor instance variable, and the boolean flag to return source documents respectively.