Ai He, Shefali Sharma, Chun-Nan Hsu, Reconstructing Big Semantic Similarity Networks. in Proceedings of the TextGraph-8 Workshop (EMNLP 2013), Seattle, Washington, USA Distance metric learning from high (thousands or more) dimensional data with hundreds or thousands of classes is intractable but in NLP and IR, high dimensionality is usually required to represent data points, such as in modeling se