Sketching distances in monotone graph classes

L Esperet, N Harms, A Kupavskii - arXiv preprint arXiv:2202.09253, 2022 - arxiv.org
We study the two-player communication problem of determining whether two vertices $ x, y $
are nearby in a graph $ G $, with the goal of determining the graph structures that allow the …

Learning-Based Algorithms for Graph Searching Problems

AF DePavia, E Tani, A Vakilian - … Conference on Artificial …, 2024 - proceedings.mlr.press
We consider the problem of graph searching with prediction recently introduced by Banerjee
et al.(2023). In this problem, an agent starting at some vertex r has to traverse a (potentially …

Dijkstras algorithm with predictions to solve the single-source many-targets shortest-path problem

W Feijen, G Schäfer - arXiv preprint arXiv:2112.11927, 2021 - arxiv.org
We study the use of machine learning techniques to solve a fundamental shortest path
problem, known as the single-source many-targets shortest path problem (SSMTSP). Given …

Sample complexity of learning heuristic functions for greedy-best-first and A* search

S Sakaue, T Oki - Advances in Neural Information …, 2022 - proceedings.neurips.cc
Greedy best-first search (GBFS) and A* search (A*) are popular algorithms for path-finding
on large graphs. Both use so-called heuristic functions, which estimate how close a vertex is …

Fast, Right, or Best? Algorithms for Practical Optimization Problems

W Feijen - 2024 - eprints.illc.uva.nl
Good algorithms exhibit three key qualities: speed, accuracy, and optimal objective value.
We explore the interaction among these criteria through optimization problems grounded in …

Testing, Learning, Sampling, Sketching

N Harms - 2022 - uwspace.uwaterloo.ca
We study several problems about sublinear algorithms, presented in two parts. Part I:
Property testing and learning. There are two main goals of research in property testing and …

[PDF][PDF] Fast, right, or best?

W Feijen - pure.uva.nl
Algorithms are everywhere. Imagine the day of a millennial in Amsterdam. The shortest route
is shown on their phone, the 'recommended for you'music list plays on their headphones …