Ruichen Tian

dblp:429/7677 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2026
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 since 2021Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Theoretical computer science
1 paper
Graph algorithms and graph theory · 50% Mathematical optimization · 50%
Artificial intelligence
1 paper
Optimization for machine learning · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Optimization for machine learning
combinatorial optimization
1.012026
Elite Pattern Reinforcement for Vehicle Routing Problems · AAAI 2026
Graph algorithms and graph theory › graph algorithms
routing
1.012026
Elite Pattern Reinforcement for Vehicle Routing Problems · AAAI 2026
Mathematical optimization › combinatorial optimization
vehicle routing
1.012026
Elite Pattern Reinforcement for Vehicle Routing Problems · AAAI 2026

Methods — techniques the papers use, named apart from their topics

reinforcement learning · 2.0elite-guided score modulation · 2.0
YearPublicationVenuePosition
2026 Elite Pattern Reinforcement for Vehicle Routing Problems
abstract
Machine learning methods have been increasingly applied to solve Vehicle Routing Problems (VRPs). A high-efficiency approach is to learn solution construction using deep neural networks. However, their tendency toward premature convergence is a critical barrier, severely hindering generalization across diverse distributions and scales. To overcome this, we introduce Elite-Pattern Reinforcement (EPR), a novel strategy designed to create a synergy between the diverse, exploratory nature of reinforcement learning and the high-quality, structured knowledge from classical heuristics. The strategy guides the learning process by reinforcing structural patterns from elite solutions, employing an elite-guided score modulation to integrate this external knowledge. The inherent symmetry of path patterns is also exploited to augment the structural information. This steers the policy away from premature convergence by enabling it to distinguish and favour elite path patterns over inferior ones. Integrating our strategy with four construction methods yields substantial performance improvements on the CVRPLIB and TSPLIB benchmarks. Furthermore, our approach outperforms state-of-the-art learning-based methods, demonstrating superior generalization across diverse distributions and scales.
Ruichen Tian
AAAI4