Quizz 01: General Intro to NLP

Name: ________________________

1. Distinguish between the Natural Language Processing and Computational Linguistics approaches to the field of computer-aided study of human languages.

   
   
   
   
   

2. List five properties of natural language which make computational processing of natural language difficult.

   
   
   
   
   
   
   

3. Define what is a "sign" according to the technical semiotic definition.

   
   
   
   
   
   
   

4. How many distinct words are there in Hebrew? Describe a computational procedure to estimate this number. List parameters which can make the question more precise.

   
   
   
   
   
   
   

5. The "Open Information Extraction" tool at AllenAI returns incorrect answers for this query: who governs the United States. For each of the following sentence that was matched by this query, explain what is the source of the mistake: Lexical knowledge, Syntax, Semantics.

   
   Answer: AFRICA / We Africans are happy, proud that a son of Africa governs the United States of America
   
   Answer: LAW / The House of Representatives drafts and passes laws that, when signed by the president, govern the Unites States and its citizens.
   
   Answer: THE SITE / All matters relating to the site are governed by United States Law.