Search Results for author: Bala Krishnamoorthy

Found 9 papers, 7 papers with code

Predictive Analytics of Varieties of Potatoes

1 code implementation4 Apr 2024 Fabiana Ferracina, Bala Krishnamoorthy, Mahantesh Halappanavar, Shengwei Hu, Vidyasagar Sathuvalli

We explore the application of machine learning algorithms to predict the suitability of Russet potato clones for advancement in breeding trials.

Binary Classification Decision Making +2

A Normalized Bottleneck Distance on Persistence Diagrams and Homology Preservation under Dimension Reduction

no code implementations11 Jun 2023 Bala Krishnamoorthy, Nathan H. May

Persistence diagrams are used as signatures of point cloud data assumed to be sampled from manifolds, and represent their topology in a compact fashion.

Dimensionality Reduction

Representations of Energy Landscapes by Sublevelset Persistent Homology: An Example With n-Alkanes

1 code implementation2 Nov 2020 Joshua Mirth, Yanqin Zhai, Johnathan Bush, Enrique G Alvarado, Howie Jordan, Mark Heim, Bala Krishnamoorthy, Markus Pflaum, Aurora Clark, Y Z, Henry Adams

Encoding the complex features of an energy landscape is a challenging task, and often chemists pursue the most salient features (minima and barriers) along a highly reduced space, i. e. 2- or 3-dimensions.

Chemical Physics Mathematical Physics Algebraic Topology Mathematical Physics

The Maximum Distance Problem and Minimal Spanning Trees

1 code implementation15 Apr 2020 Enrique G. Alvarado, Bala Krishnamoorthy, Kevin R. Vixie

For $E\subset \mathbb{R}^2$, we prove that minimizing over minimum spanning trees that connect the centers of balls of radius $s$, which cover $E$, solves the maximum distance problem.

Classical Analysis and ODEs Computational Geometry Optimization and Control 28A75, 49Q15, 49Q20

Cover Filtration and Stable Paths in the Mapper

no code implementations25 Sep 2019 Dustin L. Arendt, Matthew Broussard, Bala Krishnamoorthy, Nathaniel Saul

Our framework provides an alternative way of building a filtration from a single mapper that is then used to explore stable paths.

BIG-bench Machine Learning Recommendation Systems

Steinhaus Filtration and Stable Paths in the Mapper

1 code implementation19 Jun 2019 Dustin L. Arendt, Matthew Broussard, Bala Krishnamoorthy, Nathaniel Saul

We prove a stability result: the cover filtrations of two covers are $\alpha/m$ interleaved, where $\alpha$ is a bound on bottleneck distance between covers and $m$ is the size of smallest set in either cover.

Recommendation Systems Topological Data Analysis

Median Shapes

1 code implementation14 Feb 2018 Yunfeng Hu, Matthew Hudelson, Bala Krishnamoorthy, Altansuren Tumurbaatar, Kevin R. Vixie

When the input shapes are modeled by integral currents with shared boundaries in codimension $1$, we show that the median is guaranteed to exist, and is contained in the \emph{envelope} of the input currents.

Differential Geometry Computational Geometry Algebraic Topology Optimization and Control 49Q20 (Primary), 49Q15, 49Q05, 49Q10, 28A75, 58A25, 62-04, 62-07, 65C60, 65D18, 05C10

Interesting Paths in the Mapper

1 code implementation29 Dec 2017 Ananth Kalyanaraman, Methun Kamruzzaman, Bala Krishnamoorthy

For the special case when G is a directed acyclic graph (DAG), we show that Max-IP can be solved in polynomial time - in O(mnd_i) where d_i is the maximum indegree of a vertex in G. In the more general problem IP, the goal is to find a collection of edge-disjoint interesting paths such that the overall sum of their interestingness scores is maximized.

Computational Geometry Data Structures and Algorithms Algebraic Topology 05C85, 68Q25, 62H30, 55U99 G.2.2; F.2.2

Hyppo-X: A Scalable Exploratory Framework for Analyzing Complex Phenomics Data

1 code implementation14 Jul 2017 Methun Kamruzzaman, Ananth Kalyanaraman, Bala Krishnamoorthy, Stefan Hey, Patrick Schnable

Notably, our approach shows how environmental factors could influence phenotypic behavior, and how that effect varies across different genotypes and different time scales.

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