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Identifying the "Ghost City" of domain topics in a keyword semantic space combining citations.
Kai Hu
Kunlun Qi
Siluo Yang
Shengyu Shen
Xiaoqiang Cheng
Huayi Wu
Jie Zheng
Stephen C. McClure
Tianxing Yu
Published in:
Scientometrics (2018)
Keyphrases
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semantic space
keywords
co occurrence
latent semantic analysis
cross modal
visual features
metadata
semantic concepts
information retrieval
similarity measure
low level
low dimensional
topic models
latent dirichlet allocation
cross domain
unsupervised manner