An improved BM25 algorithm for clinical decision support in Precision Medicine based on co-word analysis and Cuckoo Search

Table 3 The expanded MeSH of 2017 TREC Precision Medicine retrieval task 1

Search word	Expanded word
Liposarcoma	Myxoid
CDK4 Amplification	Cyclin-Dependent Kinase 4
CDK4 Amplification	Proto-Onkogene Proteins c-mdm2
38-year-old	Middle Aged
38-year-old	Adult
Male	Human

ISSN: 1472-6947