Efficient Online Crowdsourcing with Complex Annotations

no code implementations • 25 Jan 2024 • Reshef Meir, Viet-An Nguyen, Xu Chen, Jagdish Ramakrishnan, Udi Weinsberg

Crowdsourcing platforms use various truth discovery algorithms to aggregate annotations from multiple labelers.

Tea Party in the House: A Hierarchical Ideal Point Topic Model and Its Application to Republican Legislators in the 112th Congress

no code implementations • IJCNLP 2015 • Viet-An Nguyen, Jordan Boyd-Graber, Philip Resnik, Kristina Miler

Topic Models

Beyond LDA: Exploring Supervised Topic Modeling for Depression-Related Language in Twitter

no code implementations • WS 2015 • Philip Resnik, William Armstrong, Leonardo Claudino, Thang Nguyen, Viet-An Nguyen, Jordan Boyd-Graber

Topic Models

Learning a Concept Hierarchy from Multi-labeled Documents

no code implementations • NeurIPS 2014 • Viet-An Nguyen, Jordan L. Ying, Philip Resnik, Jonathan Chang

While topic models can discover patterns of word usage in large corpora, it is difficult to meld this unsupervised structure with noisy, human-provided labels, especially when the label space is large.

Missing Labels Topic Models

Sometimes Average is Best: The Importance of Averaging for Prediction using MCMC Inference in Topic Modeling

no code implementations • EMNLP 2014 • Viet-An Nguyen, Jordan Boyd-Graber, Philip Resnik

Topic Models

Lexical and Hierarchical Topic Regression

no code implementations • NeurIPS 2013 • Viet-An Nguyen, Jordan L. Ying, Philip Resnik

Inspired by a two-level theory that unifies agenda setting and ideological framing, we propose supervised hierarchical latent Dirichlet allocation (SHLDA) which jointly captures documents' multi-level topic structure and their polar response variables.

regression Sentiment Analysis

Argviz: Interactive Visualization of Topic Dynamics in Multi-party Conversations

no code implementations • NAACL 2013 • Viet-An Nguyen, Yuening Hu, Jordan Boyd-Graber, Philip Resnik

Topic Models

SITS: A Hierarchical Nonparametric Model using Speaker Identity for Topic Segmentation in Multiparty Conversations

no code implementations • ACL 2012 • Viet-An Nguyen, Jordan Boyd-Graber, Philip Resnik