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20112018
most citedOptimal Linear Shrinkage Estimator for Large Dimensional Precision Matrix

63 citations · 113 across the 6 of their papers we have counts for

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6 papers

stat.ME2018

Parameter Estimation of absolute continuous four parameter Geometric Marshall-Olkin bivariate Pareto Distribution

Biplab Paul, Arabin Kumar Dey, Arjun K Gupta +1

In this paper we formulate a four parameter absolute continuous Geometric Marshall-Olkin bivariate Pareto distribution and study its parameter estimation through EM algorithm and a…

stat.ME2016

Adjusted Empirical Likelihood for Long-memory Time Series Models

Ramadha D. Piyadi Gamage, Wei Ning, Arjun K. Gupta

Empirical likelihood method has been applied to short-memory time series models by Monti (1997) through the Whittle's estimation method. Yau (2012) extended this idea to long-memor…

stat.ME2016★ 1 cited

Adjusted Empirical Likelihood for Time Series Models

Ramadha D. Piyadi Gamage, Wei Ning, Arjun K. Gupta

Empirical likelihood method has been applied to dependent observations by Monti (1997) through the Whittle's estimation method. Similar asymptotic distribution of the empirical lik…

math.ST2013★ 49 cited

On the Strong Convergence of the Optimal Linear Shrinkage Estimator for Large Dimensional Covariance Matrix

Taras Bodnar, Arjun K. Gupta, Nestor Parolya

In this work we construct an optimal linear shrinkage estimator for the covariance matrix in high dimensions. The recent results from the random matrix theory allow us to find the…

math.ST2013★ 63 cited

Optimal Linear Shrinkage Estimator for Large Dimensional Precision Matrix

Taras Bodnar, Arjun K. Gupta, Nestor Parolya

In this work we construct an optimal shrinkage estimator for the precision matrix in high dimensions. We consider the general asymptotics when the number of variables $p\rightarrow…

math.PR2011

Some new approaches to infinite divisibility

Theofanis Sapatinas, Damodar N. Shanbhag, Arjun K. Gupta

Using an approach based, amongst other things, on Proposition 1 of Kaluza (1928), Goldie (1967) and, using a different approach based especially on zeros of polynomials, Steutel (1…