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08/29/2023
Historical patterns of rice farming explain modern-day language use in China and Japan more than modernization and urbanization
We used natural language processing to analyze a billion words to study ...
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05/24/2023
Human-Centered Metrics for Dialog System Evaluation
We present metrics for evaluating dialog systems through a psychological...
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11/08/2020
Detecting Emerging Symptoms of COVID-19 using Context-based Twitter Embeddings
In this paper, we present an iterative graph-based approach for the dete...
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04/04/2019
Studying Cultural Differences in Emoji Usage across the East and the West
Global acceptance of Emojis suggests a cross-cultural, normative use of ...
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04/04/2019
What Twitter Profile and Posted Images Reveal About Depression and Anxiety
Previous work has found strong links between the choice of social media ...
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08/29/2018
The Remarkable Benefit of User-Level Aggregation for Lexical-based Population-Level Predictions
Nowcasting based on social media text promises to provide unobtrusive an...
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11/18/2017
Tree-Structured Boosting: Connections Between Gradient Boosted Stumps and Full Decision Trees
Additive models, such as produced by gradient boosting, and full interac...
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01/10/2013
Probabilistic Models for Unified Collaborative and Content-Based Recommendation in Sparse-Data Environments
Recommender systems leverage product and community information to target...
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03/28/2012
Spectral dimensionality reduction for HMMs
Hidden Markov Models (HMMs) can be accurately approximated using co-occu...
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05/04/2011