skip to main content


Title: Recent Advances in Aromatic Antimony Clusters: Recent Advances in Aromatic Antimony Clusters
Award ID(s):
1736093
PAR ID:
10076516
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
Chinese Journal of Chemistry
Volume:
36
Issue:
10
ISSN:
1001-604X
Page Range / eLocation ID:
955 to 960
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. Abstract Negation is a complex linguistic phenomenon present in all human languages. It can be seen as an operator that transforms an expression into another expression whose meaning is in some way opposed to the original expression. In this article, we survey previous work on negation with an emphasis on computational approaches. We start defining negation and two important concepts: scope and focus of negation. Then, we survey work in natural language processing that considers negation primarily as a means to improve the results in some task. We also provide information about corpora containing negation annotations in English and other languages, which usually include a combination of annotations of negation cues, scopes, foci, and negated events. We continue the survey with a description of automated approaches to process negation, ranging from early rule-based systems to systems built with traditional machine learning and neural networks. Finally, we conclude with some reflections on current progress and future directions. 
    more » « less
  2. The area of randomness extraction has seen interesting advances in recent years, with rapid progress on many longstanding open problems, along with the introduction of many new notions that played a key role in this development. We survey this progress and highlight new definitions and notions that have been the subject of intense study in recent work. 
    more » « less