Repaso Segundo Parcial Procesamiento de Información

What is a "corpus" in the context of text processing?

• A type of document

• A collection of documents

• A single word in a document

Which of the following refers to the consolidation of different forms of a word, such as singular and plural?

• Stemming

• Lemmatization

• Tokenization

What does "stop word removal" aim to do in text mining?

• Remove irrelevant words with little informational value

• Remove important content words

• Identify named entities

What is a "bag of words" model?

• A model that keeps track of word order

• A model that ignores word order and focuses on word frequency

• A model used for sentence generation

What is the purpose of "frequency inverse document" in text normalization?

• To prioritize high-frequency words

• To reduce the impact of high-frequency words

• To normalize punctuation marks

Which of the following is NOT a task typically performed by NLP algorithms?

• Text classification

• Data encryption

• Sentiment analysis

Which technique is used to break down a text into individual words or tokens?

• Tokenization

• Lemmatization

• Named Entity Recognition (NER)

What does "Named Entity Recognition" (NER) do?

• Identifies and categorizes entities like people, places, and organizations

• Classifies the emotional tone of a sentence

• Translates text from one language to another

Which of the following is an example of an NLP application that involves sentiment analysis?

• Translating product descriptions into different languages

• Analyzing customer reviews for positive or negative sentiment

• Categorizing articles based on their topics

In the context of machine learning, what do pre-trained language models like BERT and GPT-3 do?

• Perform speech recognition

• Provide deep contextual understanding and generate human-like text

• Collect raw text data