Qi Chen

activity

20092026

most citedPartition-Symmetrical Entropy Functions

7 citations · 13 across the 4 of their papers we have counts for

collaborators

5 papers

cs.IT2026

Entropy Functions on Two-Dimensional Faces of Polymatroid Region Spanned by a Matroid and a Rank-One Matroid

Kaizhe He, Qi Chen

Characterization of entropy functions is of fundamental importance in information theory. By imposing constraints on their Shannon outer bound, i.e., the polymatroidal region, one…

cs.IT2023★ 5 cited

Matroidal Entropy Functions: Constructions, Characterizations and Representations

Qi Chen, Minquan Cheng, Baoming Bai

Matroidal entropy functions are entropy functions in the form $h = lo g v \cdot r_{M}$ , where $v \geq 2$ is an integer and $r_{M}$ is the rank function of a…

cs.DM2016

On Information-Theoretic Characterizations of Markov Random Fields and Subfields

Raymond W. Yeung, Ali Al-Bashabsheh, Chao Chen +2

Let $X_{i}, i \in V$ form a Markov random field (MRF) represented by an undirected graph $G = (V, E)$ , and $V^{'}$ be a subset of $V$ . We determine the smallest graph that can always rep…

cs.IT2014★ 7 cited

Partition-Symmetrical Entropy Functions

Qi Chen, Raymond W. Yeung

Let $N = {1, \dots, n}$ . The entropy function $h$ of a set of $n$ discrete random variables ${X_{i} : i \in N}$ is a $2^{n}$ -dimensional vector whose entries are ${\bf{h}}(…

cs.IT2009★ 1 cited

Average Entropy Functions

Qi Chen, Chen He, Lingge Jiang +1

The closure of the set of entropy functions associated with n discrete variables, Gammar*n, is a convex cone in (2n-1)- dimensional space, but its full characterization remains an…