Search Results for author: Da Kuang

Found 10 papers, 2 papers with code

Complexity Matters: Dynamics of Feature Learning in the Presence of Spurious Correlations

1 code implementation5 Mar 2024 Guanwen Qiu, Da Kuang, Surbhi Goel

Existing research often posits spurious features as "easier" to learn than core features in neural network optimization, but the impact of their relative simplicity remains under-explored.

Deep Pairwise Learning To Rank For Search Autocomplete

no code implementations11 Aug 2021 Kai Yuan, Da Kuang

Autocomplete (a. k. a "Query Auto-Completion", "AC") suggests full queries based on a prefix typed by customer.

Learning-To-Rank

Fast Clustering and Topic Modeling Based on Rank-2 Nonnegative Matrix Factorization

no code implementations3 Sep 2015 Da Kuang, Barry Drake, Haesun Park

In this paper, we propose a fast method for hierarchical clustering and topic modeling called HierNMF2.

Clustering

Hardware Compliant Approximate Image Codes

no code implementations CVPR 2015 Da Kuang, Alex Gittens, Raffay Hamid

In recent years, several feature encoding schemes for the bags-of-visual-words model have been proposed.

Computational Efficiency General Classification

piCholesky: Polynomial Interpolation of Multiple Cholesky Factors for Efficient Approximate Cross-Validation

no code implementations2 Apr 2014 Da Kuang, Alex Gittens, Raffay Hamid

The dominant cost in solving least-square problems using Newton's method is often that of factorizing the Hessian matrix over multiple values of the regularization parameter ($\lambda$).

Hierarchical Clustering of Hyperspectral Images using Rank-Two Nonnegative Matrix Factorization

no code implementations14 Sep 2013 Nicolas Gillis, Da Kuang, Haesun Park

The effectiveness of this approach is illustrated on several synthetic and real-world hyperspectral images, and shown to outperform standard clustering techniques such as k-means, spherical k-means and standard NMF.

Clustering Vocal Bursts Valence Prediction

Symmetric Nonnegative Matrix Factorization for Graph Clustering

1 code implementation SDM 2012 Da Kuang, Chris Ding, Haesun Park

Unlike NMF, however, SymNMF is based on a similarity measure between data points, and factorizes a symmetric matrix containing pairwise similarity values (not necessarily nonnegative).

Clustering Graph Clustering +1

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