83 citations · 218 across the 5 of their papers we have counts for
5 papers
ClusTop: An unsupervised and integrated text clustering and topic extraction framework
Zhongtao Chen, Chenghu Mi, Siwei Duo +2
Text clustering and topic extraction are two important tasks in text mining. Usually, these two tasks are performed separately. For topic extraction to facilitate clustering, we ca…
Numerical approximations for the tempered fractional Laplacian: Error analysis and applications
Siwei Duo, Yanzhi Zhang
In this paper, we propose an accurate finite difference method to discretize the -dimensional (for ) tempered integral fractional Laplacian and apply it to study the tem…
Accurate numerical methods for two and three dimensional integral fractional Laplacian with applications
Siwei Duo, Yanzhi Zhang
In this paper, we propose accurate and efficient finite difference methods to discretize the two- and three-dimensional fractional Laplacian () in hype…
A comparative study on nonlocal diffusion operators related to the fractional Laplacian
Siwei Duo, Hong Wang, Yanzhi Zhang
In this paper, we study four nonlocal diffusion operators, including the fractional Laplacian, spectral fractional Laplacian, regional fractional Laplacian, and peridynamic operato…
Computing the ground and first excited states of the fractional Schrodinger equation in an infinite potential well
Siwei Duo, Yanzhi Zhang
In this paper, we numerically study the ground and first excited states of the fractional Schrodinger equation in an infinite potential well. Due to the non-locality of the fractio…