no code implementations • 3 Oct 2023 • Somya Sharma Chatterjee, Rahul Ghosh, Arvind Renganathan, Xiang Li, Snigdhansu Chatterjee, John Nieber, Christopher Duffy, Vipin Kumar
Our inverse model offers 3\% improvement in R$^2$ for the inverse model (basin characteristic estimation) and 6\% for the forward model (streamflow prediction).
no code implementations • 12 Oct 2022 • Somya Sharma, Rahul Ghosh, Arvind Renganathan, Xiang Li, Snigdhansu Chatterjee, John Nieber, Christopher Duffy, Vipin Kumar
We propose uncertainty based learning method that offers 6\% improvement in $R^2$ for streamflow prediction (forward modeling) from inverse model inferred basin characteristic estimates, 17\% reduction in uncertainty (40\% in presence of noise) and 4\% higher coverage rate for basin characteristics.
1 code implementation • 11 Jun 2022 • Subhabrata Majumdar, Snigdhansu Chatterjee
In the context of supervised parametric models, we introduce the concept of e-values.
no code implementations • 26 Nov 2021 • Neel Chatterjee, Somya Sharma, Sarah Swisher, Snigdhansu Chatterjee
Using these TFT models to draw inference involves estimating parameters used to fit to the experimental data.
no code implementations • 2 Jul 2021 • Subhabrata Majumdar, Snigdhansu Chatterjee
High-dimensional data, where the dimension of the feature space is much larger than sample size, arise in a number of statistical applications.
no code implementations • 3 Jun 2019 • Saurabh Agrawal, Saurabh Verma, Anuj Karpatne, Stefan Liess, Snigdhansu Chatterjee, Vipin Kumar
Traditional approaches focus on finding relationships between two entire time series, however, many interesting relationships exist in small sub-intervals of time and remain feeble during other sub-intervals.
1 code implementation • 7 May 2019 • Subhabrata Majumdar, Snigdhansu Chatterjee
Multivariate sign functions are often used for robust estimation and inference.
Methodology
1 code implementation • 6 Oct 2018 • Saurabh Agrawal, Michael Steinbach, Daniel Boley, Snigdhansu Chatterjee, Gowtham Atluri, Anh The Dang, Stefan Liess, Vipin Kumar
In many domains, there is significant interest in capturing novel relationships between time series that represent activities recorded at different nodes of a highly complex system.
no code implementations • 16 Feb 2018 • Saurabh Agrawal, Saurabh Verma, Gowtham Atluri, Anuj Karpatne, Stefan Liess, Angus Macdonald III, Snigdhansu Chatterjee, Vipin Kumar
In this paper, we define the notion of a sub-interval relationship (SIR) to capture inter- actions between two time series that are prominent only in certain sub-intervals of time.