工作经历：
2016.7--2019.12 十大菠菜担保网 讲师
2020.1--至今 十大菠菜担保网 副教授
研究方向：
图算法设计与分析、图论与组合优化、图神经网络
主持的科研项目：
1. 国家自然科学基金青年项目，11701297，图的彩虹连通性和单色连通性，2018/01-2020/12
2. 天津市自然科学基金青年项目，19JCQNJC14400，图的彩虹连通性的计算复杂性与算法研究，2019/04-2022/03
3. 智能信息处理山西省重点实验室开放课题基金，CICIP20118005，大规模复杂网络上相似性等度量的研究，2018/10-2020/09
参与的科研项目：
1.国家重点研发计划青年科学家项目，2022YFA1006400，图划分与图染色的理论和方法， 2022/12 至 2027/11，300万元
发表的学术论文（按时间倒序）：
A. 期刊论文
(1) Qingqiong Cai, Neng Fan*, Yongtang Shi, Shunyu Yao, Integer linear programming formulations for double roman domination problem, Optimization Methods and Software, 2019, DOI: 10.1080/10556788.2019.1679142.
(2) Jiangli Song #*, Qingqiong Cai, Some upper bounds for the 3-rainbow index of line graphs, Ars Combinatoria, 2019, 146: 169-182
(3) Yuede Ma#, Qingqiong Cai*, Shunyu Yao，Integer linear programming models for the weighted total domination problem, Applied Mathematics and Computation, 2019, 358: 146-150 SCI一区
(4) Qingqiong Cai, Tao Li, Yongtang Shi*, Hua Wang, Sum of weighted distances in trees, Discrete Applied Mathematics, 2019, 257: 67-84
(5) Qingqiong Cai, Fuyuan Cao, Tao Li*, Hua Wang*, On distances in vertex-weighted trees, Applied Mathematics and Computation, 2018, 333: 435-442 SCI一区
(6) Qingqiong Cai, Xueliang Li, Di Wu*, Some extremal results on the colorful monochromatic vertex connectivity of a graph, Journal of Combinatorial Optimization, 2018, 35(4): 1300-1311
(7) Qingqiong Cai, Yingbin Ma*, Jiangli Song, Rainbow connection numbers of ladders and Mobius ladders, Ars Combinatoria, 2017, 131: 321-330
(8) Qingqiong Cai, Xueliang Li*, Di Wu, Erdos-Gallai-type results for colorful monochromatic connectivity of a graph, Journal of Combinatorial Optimization, 2017, 33(1): 123-131
(9) Qingqiong Cai, Xueliang Li*, Yan Zhao, Note on the upper bound of the rainbow index of a graph, Discrete Applied Mathematics, 2016, 209: 68-74
(10) Qingqiong Cai, Xueliang Li*, Jiangli Song, The (k,l)-rainbow index for complete bipartite and multipartite graphs, Bulletin of the Malaysian Mathematical Sciences Society, 2016, 39(3): 1225-1236
(11) Qingqiong Cai, Xueliang Li*, Yan Zhao, The 3-rainbow index and connected dominating sets, Journal of Combinatorial Optimization, 2016, 31(3): 1142-1159
(12) Qingqiong Cai, Xueliang Li*, Jiangli Song, The (k,l)-rainbow index of random graphs, Bulletin of the Malaysian Mathematical Sciences Society, 2016, 39(2): 765-771
(13) Qingqiong Cai, Xueliang Li*, Jiangli Song, Solutions to conjectures on the (k,l)-rainbow index of complete graphs, Networks, 2013, 62 (3): 220-224
(14) Qingqiong Cai, Xueliang Li*, Jiangli Song, New skew Laplacian energy of simple digraphs, Transactions on Combinatorics, 2013, 2 (1): 27-37
B. 会议论文
(1) Qingqiong Cai, Shenwei Huang, Tao Li, Yongtang Shi*, Vertex-Critical ( P_5, banner)-Free Graphs. 13th International Workshop on Frontiers in Algorithmics, Sanya, P.R. China, 2019.4.29-2019.5.3
讲授课程：
计算机基础，数据库技术与应用，Python编程基础，智能计算基础，概率论与数理统计
其他：
入选2021年教育部课程思政示范课程、课程思政教学名师和教学团队
入选天津市131创新型人才第三层次