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Recent Advances in Graph Partitioning (1311.3144v3)

Published 13 Nov 2013 in cs.DS, cs.DC, and math.CO

Abstract: We survey recent trends in practical algorithms for balanced graph partitioning together with applications and future research directions.

Citations (558)

Summary

  • The paper presents a comprehensive survey of novel graph partitioning methods that balance load and minimize cut edges.
  • It details both exact methods like quadratic programming and heuristic techniques including multilevel, spectral, and geometric approaches.
  • The study provides experimental and theoretical analysis, offering insights for parallel processing and future algorithmic research.

An Overview of Recent Advances in Graph Partitioning

The paper "Recent Advances in Graph Partitioning" by Aydın Buluç et al. provides a comprehensive survey of contemporary algorithmic strategies and methodologies in graph partitioning (GP). This complex subject is richer and becomes increasingly crucial due to its wide applicability in handling vast datasets spawned by scientific simulations, social networks, and road networks. The underlying importance is highlighted by detailing both existing methods and potential future research directions. The paper addresses various algorithmic frameworks, numerical results, theoretical advancements, and practical applications, offering a solid foundation for researchers in the field.

Graph partitioning is a central theme in computer science used to decompose a graph into smaller components to simplify complexity and facilitate parallelization. It achieves relevance across domains like scientific computing, image processing, and social network analysis. The paper underscores the importance of balance constraints and objectives, such as minimizing the edge cut, communication volume, and load balancing—challenges intricately tied to NP-hardness but mitigated through heuristic and approximation algorithms.

Key Algorithmic Frameworks

The paper elaborates on a broad spectrum of graph partitioning algorithms from exact to heuristic methods. The conventional Kernighan-Lin (KL) and Fiduccia-Mattheyses (FM) algorithms are acknowledged for their initial contributions, yet are complemented by enhancements leveraging linear and quadratic programming for exact solution approaches. On the heuristic side, the multilevel algorithm emerges as a seminal approach, combining coarsening, initial partitioning, and uncoarsening phases to handle large graphs efficiently.

Significant developments include spectral and flow-based methods, which integrate techniques from linear algebra to locate promising bisections and exploit the max-flow min-cut theorem, respectively. Furthermore, geometric partitioning leverages node coordinates for specific graph types, extending into innovative methods like graph-filling curves and multilevel bubble frameworks designed for well-shaped partitions.

Numerical Results and Theoretical Insights

The paper contrasts the efficacy of different objective functions and their practical implications, discussing metrics such as expansion, conductance, and communication volume. A notable aspect is the computational complexity involved in achieving approximations, where linear to sublinear time methodologies are applied, providing efficient trade-offs between precision and execution time.

Emphasis is placed on experiments illustrating the strengths of these algorithms across different graph types, including complex networks with scale-free properties. The exposition on the parameterized complexity and the bridging of the gap between optimal solutions and heuristic methods presents a promising avenue for theoretical advancements.

Implications and Future Directions

Graph partitioning has deep implications for parallel processing and distributed computing, aiming at optimizing data mapping to processors in architectures with hierarchical network designs. Practical applications extend to complex network analysis for community detection, VLSI design, and power grid management showing the broad utility of GP techniques in optimizing real-world problems.

The discussion on future challenges encourages research into hybrid and evolutionary frameworks and integration with high-performance and cloud computing infrastructures. Furthermore, emerging trends in parallelization and data locality reflect ongoing shifts in computational paradigms, setting the stage for advancements in exascale computing and energy-efficient algorithms.

In summary, the paper emphasizes the ongoing evolution of graph partitioning methods—a pivotal toolset that accommodates growing data complexities and computing power. It is an essential reference that encapsulates past developments, critiques current methodologies, and projects the innovation trajectory in GP, urging exploration into algorithmically bridging theory and practical constraints in computing applications.