Shortest path - PowerPoint PPT Presentation


Shortest Paths Algorithms and Applications Overview

This material covers various aspects of shortest path algorithms, focusing on Dijkstra's algorithm with binary heap and its time complexity. It delves into the history of shortest path algorithms, highlighting key authors and their contributions. Additionally, it explores different applications of s

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Constructing Perpendiculars: Shortest Distance to a Point

Learn how to find the shortest distance from a point to a line, ensuring the path taken is efficient and direct. By constructing a perpendicular from the point to the line, you guarantee the shortest possible route, creating a right angle with the line. Explore the process of constructing perpendicu

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Probabilistic Pursuit on Grid: Convergence and Shortest Paths Analysis

Probabilistic pursuit on a grid involves agents moving towards a target in a probabilistic manner. The system converges quickly to find the shortest path on the grid from the starting point to the target. The analysis involves proving that agents will follow monotonic paths, leading to efficient con

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Divide-and-Conquer Algorithm for Two-Point Shortest Path Queries in Polygonal Domains

In this research presented at SoCG 2019, a new divide-and-conquer algorithm is proposed for efficiently handling two-point shortest path queries in polygonal domains. The algorithm offers significant improvements in preprocessing space and query time compared to previous methods, making it a valuabl

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Dijkstra's Algorithm for Shortest Paths with Weighted Graphs

Dijkstra's Algorithm, named after inventor Edsger Dijkstra, is a fundamental concept in computer science for finding the shortest path in weighted graphs. By growing a set of nodes with computed shortest distances and efficiently using a priority queue, the algorithm adapts BFS to handle edge weight

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Bellman-Ford Algorithm: Shortest Path with Negative Edge Length

The Bellman-Ford algorithm addresses the challenge of finding the shortest path in graphs with negative edge lengths, particularly useful in scenarios such as arbitrage in currency exchange rates. By utilizing dynamic programming and steps iteration, the algorithm efficiently detects negative cycles

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Visibility Graphs

Delve into the world of Computational Geometry with a focus on Visibility Graphs and Shortest Paths, exploring concepts like Configuration Space, Roadmap Construction, Motion Planning, and the Geometry of Shortest Paths. Understand the significance of Visibility Graphs as a roadmap for determining t

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Graphs and Algorithms: Exploring Minimum Spanning Trees and Shortest Path Algorithms

Dive into the world of graphs with a focus on Minimum Spanning Trees (MST) and Single Source Shortest Path (SSSP) algorithms. Learn about MST algorithms like Prim's and Kruskal's, delve into Dijkstra's Algorithm for SSSP, and understand the importance of using heaps in optimization. Explore applicat

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Dijkstra's Algorithm for Shortest Path with Non-negative Edge Weights

This content illustrates Dijkstra's Algorithm for solving the Single-Source Shortest Path problem with non-negative edge weights. The algorithm calculates final distances from a source node to all other nodes in a graph by iteratively selecting the node with the minimum distance and relaxing its out

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Shortest Path Problem: Mathematical Principles & Algorithms

Delve into the complexities of the Shortest Path Problem, exploring its mathematical formulation, dual aspects, algorithmic validations, and applications. From understanding the fundamentals of SPP to dissecting Dijkstra's Algorithm, this content synthesizes theoretical foundations with practical im

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Interprocedural Path Profiling and Techniques

Path profiling is a technique that counts the number of times specific path fragments are executed within a program. Our work focuses on extending the Ball-Larus methodology with new interprocedural and intraprocedural techniques, enabling advanced program optimizations and software maintenance thro

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Effective Indexing for Approximate Constrained Shortest Path Queries

Large road networks present challenges for exact Constrained Shortest Path (CSP) queries. Existing solutions are expensive or impractical due to lack of indexing. A proposed solution, COLA (COnstrained LAbeling), leverages the planar nature of road networks for efficient approximate CSP processing.

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Shortest Path Network Design

This content delves into the design of shortest path networks focusing on technology-specific path choice restrictions for IP and Ethernet protocols like OSPF, IS-IS, TRILL, and 802.1aq. It explores the implications of path choice restrictions, discusses loops in TDM networks, and highlights the ine

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Efficient Euclidean Pathfinding Among Polygonal Obstacles

This research presented at SODA 2021 introduces a solution for finding the shortest Euclidean path between two points in a free space containing polygonal obstacles. By dividing the algorithm into phases and using persistent binary trees, the space complexity is reduced to O(n log n), significantly

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Dijkstra's Shortest Path Algorithm History and Impact

Explore the history and impact of Dijkstra's shortest path algorithm, its design in 1956, and the emergence of software engineering concepts from the 1968 NATO Conference. Learn about Edsger Dijkstra's quick invention of the algorithm and the evolution of programming methodology. Discover more about

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All Pairs Shortest Path and Recursive Formulation

Explore the concept of finding the shortest paths between all pairs of vertices in a graph using dynamic programming. Discover the recursive formulation to determine the shortest path length using intermediate vertices. Delve into the complexities of solving such problems efficiently.

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Shortest Path Algorithms in Graph Theory

Explore the concepts of shortest path algorithms in graph theory, starting from defining the problem to discussing Dijkstra's algorithm and its implementation. Discover the properties of shortest paths, dynamic programming approach, running time analysis, handling negative edge lengths, and more.

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Shortest Path Algorithms in Graph Theory

Explore the concepts of Shortest Path Algorithms in Graph Theory, including BFS, properties of shortest paths, dynamic programming approach, and Dijkstra's algorithm. Understand how these algorithms efficiently find the shortest path between two vertices in a graph.

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Shortest Path in Unweighted Graphs: BFS Exploration

Explore the properties of BFS (Breadth-first search) algorithm in finding the shortest path in unweighted graphs and understanding the key structures of shortest paths. Learn how BFS can be utilized to compute the shortest path distance in graphs efficiently.

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Shortest Path Queries in Polygonal Domains and Free Space

Explore the challenges in designing data structures for efficient shortest path queries in polygonal domains with disjoint obstacles and free spaces. Discover the methodologies and results of previous works in this domain and examine related works impacting the query time complexity. Delve into the

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Optimizing Dijkstra's Algorithm for Single-Source Shortest Path

Explore Dijkstra's Algorithm for Single-Source Shortest Path with non-negative edge weights, focusing on efficient distance calculations and edge relaxation. Discover step-by-step visualizations of the algorithm in action and learn how to apply it in real-world scenarios effectively.

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Dijkstra's Algorithm for Shortest Path Problems

Learn about Dijkstra's algorithm, a greedy strategy for solving the Single-Source Shortest Path problem. Explore correctness proofs, running time analysis, and a specialized implementation called Dials. Visual examples and detailed explanations included.

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Shortest Paths in Weighted Graphs: Applications and Algorithms

Discover the concepts of single-source shortest paths in weighted graphs, including their applications in geographical maps, satellite navigators, and internet routing. Learn about Dijkstra's algorithm, relaxation, and representing shortest paths efficiently.

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Forward-Backward Single-Source Shortest Paths Algorithms

Explore efficient algorithms for single-source shortest paths, including forward-backward approaches, all-pairs shortest paths in weighted graphs, and the endpoint independent model. Various methods such as Dijkstra's algorithm, Spira's lazy version, and analysis techniques are discussed.

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Discovering Shortest Path Algorithms in Graph Theory

Delve into the world of graph theory and uncover the intricacies of finding the shortest path algorithms using Dijkstra's algorithm. Explore the concepts, techniques, and practical applications of determining the most efficient paths between nodes in a graph network.

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Shortest Paths and Dynamic Programming for Urban Traffic Analysis

Explore how traffic engineers in Littleville project optimal driving routes using shortest path models in a network of streets. Understand the basics and applications of shortest path problems in graph theory for efficient urban traffic management.

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Single-Source Shortest Path Problem and Dijkstra's Algorithm

Explore the Single-Source Shortest Path Problem in both directed and undirected graphs, along with an in-depth look at Dijkstra's Algorithm for finding the shortest path between two vertices. Understand the concept of growing a tree rooted at a starting vertex and the process of adding the best-look

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Optimizing Shortest Paths Algorithms: Negative Cycles, Laundry Lists, and All Pairs

Explore various aspects of shortest paths algorithms including negative cycles, laundry lists of shortest pairs, and all pairs shortest paths. Understand concepts like cycles detection, pre-computation, and clever path ordering to enhance algorithm efficiency.

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Heuristic Algorithms for Pathfinding in Computer Science

Explore the concepts of heuristic algorithms like the A* search algorithm and Dijkstra's shortest path algorithm in the field of computer science. Discover how these algorithms efficiently find the shortest path from starting nodes to destinations, optimizing travel and problem-solving in various ap

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Algorithm Analysis Spring 2025 | All-Pairs Shortest Paths - CSCE 411

Explore the design and analysis of algorithms in CSCE 411 with a focus on all-pairs shortest paths, single-source shortest path problems, and graph complexities. Learn about Dijkstra's algorithm, Bellman-Ford algorithm, and more. Understand the conditions for meaningful solutions in graph scenarios.

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Parametric Shortest Paths in Planar Graphs by Kshitij Gajjar

Explore the concept of parametric shortest paths in planar graphs with insights provided by Kshitij Gajjar from Tata Institute of Fundamental Research, Mumbai. Understand the intricacies of directed, acyclic shortest paths in a visual and informative manner through detailed graphs and analysis prese

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Quickest Visibility Queries in Polygonal Domains - Summary & Previous Work

Explore the challenges of quickest visibility queries in polygonal domains, including shortest path queries and subproblems in polygonal cases with holes. Understand the complexities and strategies for solving these queries efficiently based on a study by Haitao Wang from Utah State University. Revi

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Johnson's APSP Algorithm for All-Pairs Shortest Paths

Johnson's All-Pairs Shortest Paths (APSP) Algorithm provides a method to find the shortest path between all pairs of vertices in a weighted graph while adhering to specific conditions. By introducing a new vertex and reweighting edges, it overcomes limitations like negative cycles and weights. This

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Network Flows for Business Logistics and Revenue Management

Learn about network flows and their applications in business logistics and revenue management, including solving the shortest path problem using linear programs. Explore examples such as routing, scheduling, assignment, warehouse planning, and supply chains. Understand the concept of cost of edges i

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Efficient Graph Algorithms and Path Finding in Computer Science

Explore the realm of efficient graph algorithms and path finding techniques in computer science, covering topics such as shortest path algorithms, iterative depth-first and breadth-first search, and their applications in robot planning and more. Dive into examples of path finding procedures and unde

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Graph Theory Fundamentals and Shortest Paths Exploration

Discover the basics of graph theory, explore concepts like vertices, edges, paths, cycles, and connectivity. Delve into the Shortest Path Problem, Single Source Shortest Paths (SSSP), and various graph representations such as adjacency lists and matrices. Learn about Dijkstra's Algorithm and Breadth

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Shortest Path Algorithm and Dijkstra's Contributions

Explore the history of the shortest path algorithm, including insights from Edsger Dijkstra and the 1968 NATO Conference on Software Engineering. Discover the origins and evolution of this fundamental algorithm that revolutionized the field of computer science.

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Analysis of Dijkstra's Algorithm for Single-Source Shortest Path Problem

Explore Dijkstra's algorithm for solving the single-source shortest path problem in weighted graphs. Understand how the algorithm efficiently finds the shortest path from a source vertex to a target vertex, providing insights into its implementation and complexities.

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Understanding Shortest Path Algorithms: Dijkstra, Bellman-Ford, Floyd-Warshall

Discover the power of Dijkstra's, Bellman-Ford, and Floyd-Warshall algorithms for finding the shortest paths in graphs. Learn how each algorithm uniquely approaches path-finding and their applications. Explore their differences and advantages to optimize route planning and graph analysis.

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Advanced Graph Algorithms for Shortest Path Finding

Explore advanced graph algorithms such as Bellman-Ford and Floyd-Warshall for finding shortest paths in graphs with negative edges and detecting negative weight cycles. Understand the working mechanism, importance of optimum substructure, and dynamic programming concepts for efficient path determina

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