Python: Bigrams of words in a given list of strings

Last update on April 19 2025 12:58:19 (UTC/GMT +8 hours)

Generate Bigrams from List of Strings

Write a Python program to generate Bigrams of words from a given list of strings.

From Wikipedia:
A bigram or digram is a sequence of two adjacent elements from a string of tokens, which are typically letters, syllables, or words. A bigram is an n-gram for n=2. The frequency distribution of every bigram in a string is commonly used for simple statistical analysis of text in many applications, including in computational linguistics, cryptography, speech recognition, and so on.

Sample Solution:

Python Code:

# Define a function called 'bigram_sequence' that generates bigrams from a list of text sequences.
def bigram_sequence(text_lst):
    result = [a for ls in text_lst for a in zip(ls.split(" ")[:-1], ls.split(" ")[1:])]
    # Split each text sequence into words, generate bigrams, and flatten the list of bigrams.
    return result

# Create a list of text sequences 'text'.
text = ["Sum all the items in a list", "Find the second smallest number in a list"]

# Print a message indicating the original list of text sequences.
print("Original list:")
print(text)

# Call the 'bigram_sequence' function with 'text' and store the bigrams.
print("\nBigram sequence of the said list:")
# Print the list of bigrams generated from the text sequences.
print(bigram_sequence(text)) 

Sample Output:

Original list:
['Sum all the items in a list', 'Find the second smallest number in a list']

Bigram sequence of the said list:
[('Sum', 'all'), ('all', 'the'), ('the', 'items'), ('items', 'in'), ('in', 'a'), ('a', 'list'), ('Find', 'the'), ('the', 'second'), ('second', 'smallest'), ('smallest', 'number'), ('number', 'in'), ('in', 'a'), ('a', 'list')]

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to generate trigrams from a given list of strings.
• Write a Python program to generate bigrams from a list of strings and filter out bigrams containing common stop words.
• Write a Python program to create a dictionary of bigrams with their frequency counts from a list of strings.
• Write a Python program to generate overlapping bigrams from a list of strings and then sort them by frequency.

Python Code Editor:

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