Overlap and chunk boundaries in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the chunk size for text splitting.

LangChain

text_splitter = RecursiveCharacterTextSplitter(chunk_size=[1], chunk_overlap=20)

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

A500

B50

C1000

D2000

Attempts:

3 left

💡 Hint

Common Mistakes

Using too small chunk size like 50 which creates too many chunks.

Setting chunk size larger than the text length.

The chunk_size defines how big each text chunk will be. Setting it to 500 means each chunk will have up to 500 characters.

2fill in blank

medium

Complete the code to set the chunk overlap for text splitting.

LangChain

text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=[1])

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

A0

B100

C50

D500

Attempts:

3 left

💡 Hint

Common Mistakes

Setting overlap equal to chunk size, which causes full repetition.

Setting overlap to zero, losing context between chunks.

The chunk_overlap defines how many characters overlap between chunks. Setting it to 50 means each chunk shares 50 characters with the previous chunk.

3fill in blank

hard

Fix the error in the code to correctly split text with overlap.

LangChain

chunks = text_splitter.split_text([1])

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Achunks

Btext

Csplit_text

Dtext_splitter

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the splitter object instead of the text string.

Passing the chunks list which is the output, not input.

The split_text method requires the original text string as input to split it into chunks.

4fill in blank

hard

Fill both blanks to create a text splitter with chunk size 400 and overlap 100.

LangChain

text_splitter = RecursiveCharacterTextSplitter(chunk_size=[1], chunk_overlap=[2])

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

A400

B100

C200

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Setting overlap larger than chunk size.

Using very small chunk size causing many chunks.

Setting chunk_size to 400 and chunk_overlap to 100 creates chunks of 400 characters with 100 characters overlapping between chunks.

5fill in blank

hard

Fill all three blanks to split text and print the number of chunks.

LangChain

text_splitter = RecursiveCharacterTextSplitter(chunk_size=[1], chunk_overlap=[2])
chunks = text_splitter.split_text([3])
print(len(chunks))

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

A600

B150

Ctext

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Passing wrong variable to split_text.

Setting overlap larger than chunk size.

This code creates a splitter with chunk size 600 and overlap 150, splits the text, then prints how many chunks were created.