Title
Dependency and AMR Embeddings for Drug-Drug Interaction Extraction from Biomedical Literature
Abstract
Drug-drug interaction (DDI) is an unexpected change in a drug's effect on the human body when the drug and a second drug are co-prescribed and taken together. As many DDIs are frequently reported in biomedical literature, it is important to mine DDI information from literature to keep DDI knowledge up to date. One of the SemEval challenges in the year 2011 and 2013 was designed to tackle the task where the best system achieved an F1 score of 0.80. In this paper, we propose to utilize dependency embeddings and Abstract Meaning Representation (AMR) embeddings as features for extracting DDIs. Our contribution is two-fold. First, we employed dependency embeddings, previously shown effective for sentence classification, for DDI extraction. The dependency embeddings incorporated structural syntactic contexts into the embeddings, which were not present in the conventional word embeddings. Second, we proposed a novel syntactic embedding approach using AMR. AMR aims to abstract away from syntactic idiosyncrasies and attempts to capture only the core meaning of a sentence, which could potentially improve DDI extraction from sentences. Two classifiers (Support Vector Machine and Random Forest) taking these embedding features as input were evaluated on the DDIExtraction 2013 challenge corpus. The experimental results show the effectiveness of dependency and AMR embeddings in the DDI extraction task. The best performance was obtained by combining word, dependency and AMR embeddings (F1 score=0.84).
Year
DOI
Venue
2017
10.1145/3107411.3107426
BCB
Keywords
Field
DocType
drug-drug interaction,embeddings,dependency,abstract meaning representation,deep learning
F1 score,Embedding,SemEval,Computer science,Support vector machine,Natural language processing,Artificial intelligence,Deep learning,Random forest,Syntax,Sentence,Machine learning
Conference
ISBN
Citations 
PageRank 
978-1-4503-4722-8
3
0.51
References 
Authors
22
7
Name
Order
Citations
PageRank
Yanshan Wang14719.00
Sijia Liu2608.06
Majid Rastegar-Mojarad39617.23
Liwei Wang46310.92
Feichen Shen512322.60
Fei Liu634523.90
Hongfang Liu71479160.66