Search Results for author: Keith Burghardt

Found 13 papers, 7 papers with code

Data-Driven Estimation of Heterogeneous Treatment Effects

no code implementations16 Jan 2023 Christopher Tran, Keith Burghardt, Kristina Lerman, Elena Zheleva

In this work, we provide a survey of state-of-the-art data-driven methods for heterogeneous treatment effect estimation using machine learning, broadly categorizing them as methods that focus on counterfactual prediction and methods that directly estimate the causal effect.

counterfactual

Using Emotion Embeddings to Transfer Knowledge Between Emotions, Languages, and Annotation Formats

1 code implementation31 Oct 2022 Georgios Chochlakis, Gireesh Mahajan, Sabyasachee Baruah, Keith Burghardt, Kristina Lerman, Shrikanth Narayanan

In this work, we study how we can build a single model that can transition between these different configurations by leveraging multilingual models and Demux, a transformer-based model whose input includes the emotions of interest, enabling us to dynamically change the emotions predicted by the model.

Emotion Recognition

Leveraging Label Correlations in a Multi-label Setting: A Case Study in Emotion

1 code implementation28 Oct 2022 Georgios Chochlakis, Gireesh Mahajan, Sabyasachee Baruah, Keith Burghardt, Kristina Lerman, Shrikanth Narayanan

First, we develop two modeling approaches to the problem in order to capture word associations of the emotion words themselves, by either including the emotions in the input, or by leveraging Masked Language Modeling (MLM).

Emotion Recognition Language Modelling +1

Quantifying How Hateful Communities Radicalize Online Users

no code implementations19 Sep 2022 Matheus Schmitz, Keith Burghardt, Goran Muric

In this paper, we measure the impact of joining fringe hateful communities in terms of hate speech propagated to the rest of the social network.

Causal Inference Time Series Analysis

Inferring topological transitions in pattern-forming processes with self-supervised learning

1 code implementation19 Mar 2022 Marcin Abram, Keith Burghardt, Greg Ver Steeg, Aram Galstyan, Remi Dingreville

The identification and classification of transitions in topological and microstructural regimes in pattern-forming processes are critical for understanding and fabricating microstructurally precise novel materials in many application domains.

Self-Supervised Learning

Emergent Instabilities in Algorithmic Feedback Loops

1 code implementation18 Jan 2022 Keith Burghardt, Kristina Lerman

In this work, we explore algorithmic confounding in collaborative filtering-based recommendation algorithms through teacher-student learning simulations.

Collaborative Filtering Recommendation Systems

Detecting Anti-Vaccine Users on Twitter

1 code implementation21 Oct 2021 Matheus Schmitz, Goran Murić, Keith Burghardt

The goal of this study is to better understand anti-vaccine sentiment by developing a system capable of automatically identifying the users responsible for spreading anti-vaccine narratives.

Misinformation

DoGR: Disaggregated Gaussian Regression for Reproducible Analysis of Heterogeneous Data

1 code implementation31 Aug 2021 Nazanin Alipourfard, Keith Burghardt, Kristina Lerman

Quantitative analysis of large-scale data is often complicated by the presence of diverse subgroups, which reduce the accuracy of inferences they make on held-out data.

regression

Inherent Trade-offs in the Fair Allocation of Treatments

no code implementations30 Oct 2020 Yuzi He, Keith Burghardt, Siyi Guo, Kristina Lerman

Explicit and implicit bias clouds human judgement, leading to discriminatory treatment of minority groups.

Fairness

Origins of Algorithmic Instabilities in Crowdsourced Ranking

no code implementations23 Oct 2020 Keith Burghardt, Tad Hogg, Raissa M. D'Souza, Kristina Lerman, Marton Posfai

We use this data to construct a model that quantifies how judgement heuristics and option quality combine when deciding between two options.

Social and Information Networks Human-Computer Interaction

Learning Fair and Interpretable Representations via Linear Orthogonalization

1 code implementation28 Oct 2019 Yuzi He, Keith Burghardt, Kristina Lerman

To reduce human error and prejudice, many high-stakes decisions have been turned over to machine algorithms.

Fairness

The Myopia of Crowds: A Study of Collective Evaluation on Stack Exchange

no code implementations24 Feb 2016 Keith Burghardt, Emanuel F. Alsina, Michelle Girvan, William Rand, Kristina Lerman

Our results suggest that, rather than evaluate all available answers to a question, users rely on simple cognitive heuristics to choose an answer to vote for or accept.

Question Answering

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