Chapter published in:Negation and Speculation Detection
Noa P. Cruz Díaz and Manuel J. Maña López
[Natural Language Processing 13] 2019
► pp. 7–26
Chapter 2 is an overview of the concept of negation and the major topics concerning it, including a classification of the different types of negation. In addition, this chapter analyses the most relevant negation detection systems found in the literature, showing that this task has been an active research area during recent years in the NLP community.