Which of the following is an application of natural language processing? A) Voice assistants like Amazon Alexa and Siri

B) Chatbots

C) Sentiment analysis

D) All of the above

Which of the following is not a type of image annotation? A) 3D cuboids

B) Bounding boxes

C) Semantic annotation

D) Semantic segmentation

Which of the following is not an application of computer vision? A) Medical imaging

B) Sentiment analysis

C) Autonomous vehicles

D) Face recognition

Which of the following is a necessary characteristic of test datasets? A) Representative of the training data as a whole

B) Large enough to yield meaningful results

C) A and B

D) None of the above

What are naive bayes classifiers commonly used for? A) Image annotation

B) Audio transcription

C) Text classification

D) Data cleansing

What is a sentence parser typically used for? A) To parse sentences to check if they are utf-8 compliant

B) To parse sentences to derive their most likely syntax tree structures

C) To parse sentences to assign POS tags to all tokens

D) To check if sentences can be parsed into meaningful tokens

Which of the following is an example of feature extraction? A) Removing stop words in a sentence

B) Constructing a bag of word vectors from an email

C) Applying PCA projects to large, high-dimensional data

D) All of the above

Which technique can you use for normalization in text mining? A) Lemmatization

B) Stop Word Removal

C) Stemming

D) A and C

How should you handle missing or corrupted data in a dataset? A) Drop missing rows or columns

B) Replace missing values with mean, median, and mode

C) Assign a unique category to missing values

D) All of the above