Search engines and how they find information in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a simple search by checking if the keyword is in the document.

Intro to Computing

if '[1]' in document:
    print('Keyword found!')

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

Akeyword

Bdocument

Csearch

Dindex

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'document' instead of 'keyword' inside the if condition.

The code checks if the keyword is present in the document text.

2fill in blank

medium

Complete the code to add a document to the search index dictionary.

Intro to Computing

search_index['[1]'] = document_text

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

Adocument_text

Bkeyword

Cindex

Ddoc_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'keyword' as the key instead of a document ID.

Documents are stored in the index using a unique doc_id as the key.

3fill in blank

hard

Fix the error in the code that searches for documents containing the keyword.

Intro to Computing

for doc_id, text in search_index.items():
    if '[1]' in text:
        print(f'Document {doc_id} matches')

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

Asearch_index

Bdoc_id

Ckeyword

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Checking if 'doc_id' is in text, which is incorrect.

The code must check if the keyword is in the document text to find matches.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps each word to its length if the length is greater than 3.

Intro to Computing

{word: [1] for word in words if [2]

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Alen(word)

Bword

Clen(word) > 3

Dword > 3

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'word > 3' which compares a string to a number.

The comprehension maps each word to its length only if the length is greater than 3.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their frequency if frequency is more than 1.

Intro to Computing

{ [1]: [2] for [3] in word_freq.items() if [2] > 1 }

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

Aword.upper()

Bfreq

Cword

Dcount

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'count' instead of 'freq' for frequency variable.

The comprehension maps each word (converted to uppercase) to its frequency if the frequency is more than 1.