Sparse latent semantic analysis

X Chen, Y Qi, B Bai, Q Lin, JG Carbonell - Proceedings of the 2011 SIAM …, 2011 - SIAM
… a scalable latent topic model that we call “Sparse Latent Semantic Analysis” (Sparse LSA). …
select the most relevant words for each latent topic. There are several important features of …

[PDF][PDF] An introduction to latent semantic analysis

P Reidy - Discourse processes, 2009 - Citeseer
… The data set for this excercise is, thus, too sparse for the term-weighting preprocessing to
have the optimal effect. Because of this, every word is treated as a content word, even content-…

Hyperspectral unmixing based on dual-depth sparse probabilistic latent semantic analysis

R Fernandez-Beltran, A Plaza… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
… to the semantics encapsulated by the latent topic space. … probabilistic latent semantic
analysis (pLSA) [28] and latent … -depth sparse probabilistic latent semantic analysis (DEpLSA)…

[PDF][PDF] Probabilistic latent semantic analysis.

T Hofmann - UAI, 1999 - vision.jhu.edu
… and consistent improvements over Latent Semantic Analysis in a number of experiments. …
are sparse, the corresponding low-dimensional latent vectors will typically not be sparse. This …

[PDF][PDF] Latent semantic analysis

P Wiemer-Hastings, K Wiemer-Hastings… - Proceedings of the …, 2004 - reed.cs.depaul.edu
… LSA (originally known as Latent Semantic Indexing) was developed for the task of Information
… Instead, the currently used algorithms are optimized for dealing with sparse data spaces …

Latent semantic learning with structured sparse representation for human action recognition

Z Lu, Y Peng - Pattern Recognition, 2013 - Elsevier
… ) of such structured sparse representation, our graph … of latent semantic learning in action
recognition. Unlike the traditional latent semantic analysis based on topic models, our latent

A GPU-accelerated non-negative sparse latent semantic analysis algorithm for social tagging data

Y Zhang, D Yi, B Wei, Y Zhuang - Information Sciences, 2014 - Elsevier
… -negative Sparse Latent Semantic Analysis (NN-Sparse LSA) to discover the latent semantic
… the NN-Sparse LSA model. Furthermore, we implement the parallel version of our fast NN-…

Unsupervised learning by probabilistic latent semantic analysis

T Hofmann - Machine learning, 2001 - Springer
sparse, the corresponding low-dimensional latent vectors will typically not be … to latent
semantic analysis based on a statistical latent variable model, the general problem of text analysis

Sparse multi-modal probabilistic latent semantic analysis for single-image super-resolution

R Fernandez-Beltran, F Pla - Signal Processing, 2018 - Elsevier
… into a latent topic-… the semantics encapsulated by the latent topic space. Specifically, we
first define a pLSA-based extension, Sparse Multi-modal probabilistic Latent Semantic Analysis (…

Satellite recognition via sparse coding based probabilistic latent semantic analysis

D Zhao, M Lu, X Zhang, J Shi, Z Jiang - International Journal of …, 2014 - World Scientific
… on sparse coding (SC),21 we propose an SC based probabilistic latent semantic analysis
(… Note that our method is diŪerent from some proposed sparse pLSA22 or sparse topic model…