1. Microsoft Academic Graph. https://academicgraph.blob.core. windows.net/graph-2016-02-05/index.html. Microsoft Academic Graph. https://academicgraph.blob.core. windows.net/graph-2016-02-05/index.html.
2. LIBSVM Data: Classification (Binary Class). https://www.csie. ntu.edu.tw/˜cjlin/libsvmtools/datasets/binary.html. LIBSVM Data: Classification (Binary Class). https://www.csie. ntu.edu.tw/˜cjlin/libsvmtools/datasets/binary.html.
3. LUCENE.net seach engine library. https://lucenenet.apache. org/. LUCENE.net seach engine library. https://lucenenet.apache. org/.
4. UCI Machine Learning Repository. https://archive.ics.uci. edu/ml/datasets/SML2010. UCI Machine Learning Repository. https://archive.ics.uci. edu/ml/datasets/SML2010.