Search Results for author: Cristian Rojas

Found 3 papers, 0 papers with code

Fast and Consistent Learning of Hidden Markov Models by Incorporating Non-Consecutive Correlations

no code implementations ICML 2020 Robert Mattila, Cristian Rojas, Eric Moulines, Vikram Krishnamurthy, Bo Wahlberg

Can the parameters of a hidden Markov model (HMM) be estimated from a single sweep through the observations -- and additionally, without being trapped at a local optimum in the likelihood surface?

Time Series Time Series Analysis

Augmented CARDS: A machine learning approach to identifying triggers of climate change misinformation on Twitter

no code implementations24 Apr 2024 Cristian Rojas, Frank Algra-Maschio, Mark Andrejevic, Travis Coan, John Cook, Yuan-Fang Li

In this study, we address this gap by developing a two-step hierarchical model, the Augmented CARDS model, specifically designed for detecting contrarian climate claims on Twitter.

Inverse Filtering for Hidden Markov Models

no code implementations NeurIPS 2017 Robert Mattila, Cristian Rojas, Vikram Krishnamurthy, Bo Wahlberg

This paper considers a number of related inverse filtering problems for hidden Markov models (HMMs).

Cannot find the paper you are looking for? You can Submit a new open access paper.