Semantics & Word Embeddings

Mathematically speaking, what are word embeddings?

• Vectors

• Polynomial functions

• Scalars

• Neural Networks

With this Vocabulary, which word is represented by this One-hot-encoded vector?

• down

• let

• never

• run

What does the field of lexical semantics primarily focus on?

• Named Entity Recognition

• Meanings and relations of words

• Time Expression Recognition

• Formal Semantics

Which is the correct meronym for the word "table"?

• lamp
• plate
• chair
• leg

Which area of semantics deals with recognizing entities and linking them to a knowledge base?

• Formal Semantics

• Shallow Semantics

• Lexical Semantics

• None of them

What are the main objectives of Named Entity Recognition (NER)?

• Recognizing temporal expressions

• To identify and classify entities in text

• To extract keywords from text
• Symbolic reasoning

Surprise Regex:
When trying to transform a regular expression into a FSA, the first step is to...

• write down the vocabulary of strings that are matched

• cry

• draw as many states as you can

• simplify the regex

Surprise FSA:

If a language is empty, its corresponding FSA...

• has no accepting state

• does not exist

• is non-deteterministic

DFAs are not allowed to have...

• epsilon edges

• more than a certain number of edges going out of a state

• multiple transitions options for a given input

• a final state