Search Results for author: Matt Taddy

Found 10 papers, 5 papers with code

The Geometry of Culture: Analyzing Meaning through Word Embeddings

1 code implementation25 Mar 2018 Austin C. Kozlowski, Matt Taddy, James A. Evans

We demonstrate the utility of a new methodological tool, neural-network word embedding models, for large-scale text analysis, revealing how these models produce richer insights into cultural associations and categories than possible with prior methods.

Cultural Vocal Bursts Intensity Prediction Word Embeddings

Estimation and Inference on Heterogeneous Treatment Effects in High-Dimensional Dynamic Panels under Weak Dependence

no code implementations28 Dec 2017 Vira Semenova, Matt Goldman, Victor Chernozhukov, Matt Taddy

The first step of our procedure is orthogonalization, where we partial out the controls and unit effects from the outcome and the base treatment and take the cross-fitted residuals.

Causal Inference Model Selection +2

Deep IV: A Flexible Approach for Counterfactual Prediction

1 code implementation ICML 2017 Jason Hartford, Greg Lewis, Kevin Leyton-Brown, Matt Taddy

Counterfactual prediction requires understanding causal relationships between so-called treatment and outcome variables.

counterfactual

Beyond Bilingual: Multi-sense Word Embeddings using Multilingual Context

no code implementations WS 2017 Shyam Upadhyay, Kai-Wei Chang, Matt Taddy, Adam Kalai, James Zou

We present a multi-view Bayesian non-parametric algorithm which improves multi-sense word embeddings by (a) using multilingual (i. e., more than two languages) corpora to significantly improve sense embeddings beyond what one achieves with bilingual information, and (b) uses a principled approach to learn a variable number of senses per word, in a data-driven manner.

Representation Learning Word Embeddings

Counterfactual Prediction with Deep Instrumental Variables Networks

no code implementations30 Dec 2016 Jason Hartford, Greg Lewis, Kevin Leyton-Brown, Matt Taddy

We are in the middle of a remarkable rise in the use and capability of artificial intelligence.

counterfactual

Document Classification by Inversion of Distributed Language Representations

1 code implementation IJCNLP 2015 Matt Taddy

There have been many recent advances in the structure and measurement of distributed language models: those that map from words to a vector-space that is rich in information about word choice and composition.

Classification Document Classification +1

Bayesian and empirical Bayesian forests

no code implementations8 Feb 2015 Matt Taddy, Chun-Sheng Chen, Jun Yu, Mitch Wyle

We derive ensembles of decision trees through a nonparametric Bayesian model, allowing us to view random forests as samples from a posterior distribution.

Applications

Multinomial Inverse Regression for Text Analysis

no code implementations9 Dec 2010 Matt Taddy

Multinomial inverse regression is introduced as a general tool for simplifying predictor sets that can be represented as draws from a multinomial distribution, and we show that logistic regression of phrase counts onto document annotations can be used to obtain low dimension document representations that are rich in sentiment information.

Methodology

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