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stat.ML2016★ 40 cited
Local Maxima in the Likelihood of Gaussian Mixture Models: Structural Results and Algorithmic Consequences
Chi Jin, Yuchen Zhang, Sivaraman Balakrishnan +2
We provide two fundamental results on the population (infinite-sample) likelihood function of Gaussian mixture models with components. Our first main result shows that t…
stat.ML2014★ 18 cited
When is it Better to Compare than to Score?
Nihar B. Shah, Sivaraman Balakrishnan, Joseph Bradley +3
When eliciting judgements from humans for an unknown quantity, one often has the choice of making direct-scoring (cardinal) or comparative (ordinal) measurements. In this paper we…