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Haoran Qian

dblp:393/6565 · DBLP profile ↗
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1ranked-venue papers
1as first author
1since 2021 · last 2025
0009-0004-5117-6329ORCID · reported

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

Databases, data management, data science and information retrieval · 1 · 1 first-author · 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 · 44% Computational complexity · 44% Mathematical optimization · 13%
Databases, data mining, and information retrieval
1 paper
Graph data management · 100%

Topics — the 5 heaviest of 5, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Graph data management › path query
constrained shortest path query
0.912025
Answering Min-Max Resource-Constrained Shortest Path Queries Over Large Graphs · IEEE Trans. Knowl. Data Eng. 2025
Graph data management
graph query processing
0.912025
Answering Min-Max Resource-Constrained Shortest Path Queries Over Large Graphs · IEEE Trans. Knowl. Data Eng. 2025
Computational complexity › circuit complexity › circuit minimization
minimum circuit size problem
0.912025
Answering Min-Max Resource-Constrained Shortest Path Queries Over Large Graphs · IEEE Trans. Knowl. Data Eng. 2025
Graph algorithms and graph theory
shortest path
0.912025
Answering Min-Max Resource-Constrained Shortest Path Queries Over Large Graphs · IEEE Trans. Knowl. Data Eng. 2025
Mathematical optimization
combinatorial optimization
0.312025
Answering Min-Max Resource-Constrained Shortest Path Queries Over Large Graphs · IEEE Trans. Knowl. Data Eng. 2025

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

incremental search · 1.7graph reduction · 1.7ancestor checking · 1.7
YearPublicationVenuePosition
2025 Answering Min-Max Resource-Constrained Shortest Path Queries Over Large Graphs
abstract
The constrained shortest path problem is a fundamental and challenging task in applications built on graphs. In this paper, we formalize and study the$Min$-$Max$resource-constrained shortest path ($Min$-$Max$RCSP) problem, which generalizes the well-studied$Max$RCSP problem. The objective is to find a simple path of minimum cost between two query nodes, subject to resource constraints between minimum and maximum limits. This problem has wide applications in fields such as delay networks and transportation. However, we theoretically prove that computing the optimal solution is NP-hard. We propose a two-stage approach that involves resource-based graph reduction followed by cost-guided path generation. To reduce the cost of expensive acyclicity checking, we introduce the technique of ancestor checking based on the shortest path tree. Furthermore, we present an even faster incremental search approach that considers both the path cost and resource constraints while avoiding acyclicity checking. Extensive experiments on twenty real graphs consistently demonstrate the superiority of our proposed methods, achieving up to two orders of magnitude improvement in time efficiency over the baseline algorithms while producing high-quality solutions.
Haoran Qian, Weiguo Zheng, Zhijie Zhang 0004
IEEE Trans. Knowl. Data Eng.1