Tianjin University

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20062026

most citedDistance-IoU Loss: Faster and Better Learning for Bounding Box Regression

961 citations

Showing 2012 · math.COShow all

3 papers · 2 filters

math.CO2012

On Pattern Avoiding Alternating Permutations

Joanna N. Chen, William Y. C. Chen, Robin D. P. Zhou

An alternating permutation of length $n$ is a permutation $π = π_{1} π_{2} ... π_{n}$ such that $π_{1} < π_{2} > π_{3} < π_{4} > ...$ . Let $A_{n}$ denote set of alternating permutations of ${1,2,...…

math.CO2012

Congruences of Multipartition Functions Modulo Powers of Primes

William Y. C. Chen, Daniel K. Du, Qing-Hu Hou +1

Let $p_{r} (n)$ denote the number of $r$ -component multipartitions of $n$ , and let $S_{γ, λ}$ be the space spanned by $η (24 z)^{γ} ϕ (24 z)$ , where $η (z)$ is the Dedekind's eta function and…

math.CO2012

The Sorting Index and Permutation Codes

William Y. C. Chen, George Z. Gong, Jeremy J. F. Guo

In the combinatorial study of the coefficients of a bivariate polynomial that generalizes both the length and the reflection length generating functions for finite Coxeter groups,…