Search Results for author: Jayant Kalagnanam

Found 8 papers, 2 papers with code

An End-to-End Time Series Model for Simultaneous Imputation and Forecast

no code implementations1 Jun 2023 Trang H. Tran, Lam M. Nguyen, Kyongmin Yeo, Nam Nguyen, Dzung Phan, Roman Vaculin, Jayant Kalagnanam

Time series forecasting using historical data has been an interesting and challenging topic, especially when the data is corrupted by missing values.

Imputation Time Series +1

A Time Series is Worth 64 Words: Long-term Forecasting with Transformers

5 code implementations27 Nov 2022 Yuqi Nie, Nam H. Nguyen, Phanwadee Sinthong, Jayant Kalagnanam

Our channel-independent patch time series Transformer (PatchTST) can improve the long-term forecasting accuracy significantly when compared with that of SOTA Transformer-based models.

Multivariate Time Series Forecasting Representation Learning +1

Interpretable Clustering via Multi-Polytope Machines

no code implementations10 Dec 2021 Connor Lawless, Jayant Kalagnanam, Lam M. Nguyen, Dzung Phan, Chandra Reddy

To solve our formulation we propose a two phase approach where we first initialize clusters and polytopes using alternating minimization, and then use coordinate descent to boost clustering performance.

Clustering Subgroup Discovery

Optimal Generalized Decision Trees via Integer Programming

no code implementations10 Dec 2016 Oktay Gunluk, Jayant Kalagnanam, Minhan Li, Matt Menickelly, Katya Scheinberg

Decision trees have been a very popular class of predictive models for decades due to their interpretability and good performance on categorical features.

A Comparison of Decision Analysis and Expert Rules for Sequential Diagnosis

no code implementations27 Mar 2013 Jayant Kalagnanam, Max Henrion

We report an experimental comparison of the performance of the two approaches to troubleshooting, specifically to test selection for fault diagnosis.

Sequential Diagnosis

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