2 papers
math.CO2021
Power-product matrix: nonsingularity, sparsity and determinant
Yi-Shuai Niu, Hu Zhang
We prove the nonsingularity of a class of integer matrices V(n,d), namely power-product matrix, for positive integers n and d. Some technical proofs are mainly based on linear alge…
cs.CL2019
Sentence Compression via DC Programming Approach
Yi-Shuai Niu, Xi-Wei Hu, Yu You +2
Sentence compression is an important problem in natural language processing. In this paper, we firstly establish a new sentence compression model based on the probability model and…