Search Results - subject:"Factorization" - EconBiz

Robust machine learning algorithms for text analysis

Ke, Shikun; Olea, José Luis Montiel; Nesbit, James - In: Quantitative economics : QE ; journal of the … 15 (2024) 4, pp. 939-970

We study the Latent Dirichlet Allocation model, a popular Bayesian algorithm for text analysis. We show that the model's parameters are not identified, which suggests that the choice of prior matters. We characterize the range of values that the posterior mean of a given functional of the...

Persistent link: https://www.econbiz.de/10015189767

MINARES : an iterative solver for symmetric linear systems

Montoison, Alexis; Orban, Dominique; Saunders, Michael A. - 2023

Persistent link: https://www.econbiz.de/10014368430

Zeroth-order Kronecker optimization for pretraining language models

Allaire, Nathan; Le Digabel, Sébastien; Orban, Dominique; … - 2025 - Revised: September 2025

Persistent link: https://www.econbiz.de/10015458494

Rank-one Boolean tensor factorization and the multilinear polytope

Del Pia, Alberto; Khajavirad, Aida - In: Mathematics of operations research 50 (2025) 2, pp. 1514-1554

Persistent link: https://www.econbiz.de/10015444124

On the testability of the anchor-words assumption in topic models

Freyaldenhoven, Simon; Ke, Shikun; Li, Dingyi; Olea, … - 2025

Persistent link: https://www.econbiz.de/10015407032

Forecasting sparse movement speed of urban road networks with nonstationary temporal matrix factorization

Chen, Xinyu; Zhang, Chengyuan; Zhao, Xi-Le; Saunier, Nicolas - In: Transportation science 59 (2025) 3, pp. 670-687

Persistent link: https://www.econbiz.de/10015444862

Applications of optimization to factorization ranks and quantum information theory

Gribling, Sander - 2019

Persistent link: https://www.econbiz.de/10012103328

A structural topic and sentiment-discourse model for text analysis

Chen, Li; Mankad, Shawn - In: Management science : journal of the Institute for … 71 (2025) 7, pp. 5767-5787

Persistent link: https://www.econbiz.de/10015447204

Forecasting urban traffic states with sparse data using Hankel temporal matrix factorization

Chen, Xinyu; Zhao, Xi-Le; Cheng, Chun - In: INFORMS journal on computing : JOC ; charting new … 37 (2025) 4, pp. 945-961

Persistent link: https://www.econbiz.de/10015453409

Robust machine learning algorithms for text analysis

Ke, Shikun; Olea, José Luis Montiel; Nesbit, James - In: Quantitative Economics 15 (2024) 4, pp. 939-970

We study the Latent Dirichlet Allocation model, a popular Bayesian algorithm for text analysis. We show that the model's parameters are not identified, which suggests that the choice of prior matters. We characterize the range of values that the posterior mean of a given functional of the...

Persistent link: https://www.econbiz.de/10015420318

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