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Muhammad Aamir Cheema

6 accepted papers

2026

EHL*: Memory-Budgeted Indexing for Ultrafast Optimal Euclidean Pathfinding

AAAI 2026technical

The Euclidean Shortest Path Problem (ESPP) is a classic problem which requires finding the shortest path in a Euclidean plane with polygonal obstacles. The state-of-the-art solution, Euclidean Hub Labeling (EHL), offers ultra-fast query performance but comes with significant memory overhead, requiri

Cited by 0SourcePDFScholar
2025

MapEval: A Map-Based Evaluation of Geo-Spatial Reasoning in Foundation Models

ICML 2025spotlight

Recent advancements in foundation models have improved autonomous tool usage and reasoning, but their capabilities in map-based reasoning remain underexplored. To address this, we introduce MapEval, a benchmark designed to assess foundation models across three distinct tasks—textual, API-based, and…

Cited by 0SourcePDFScholar
2023

Efficient Object Search in Game Maps

IJCAI 2023poster

Video games feature a dynamic environment where locations of objects (e.g., characters, equipment, weapons, vehicles etc.) frequently change within the game world. Although searching for relevant nearby objects in such a dynamic setting is a fundamental operation, this problem has received little re…

2023

Ultrafast Euclidean Shortest Path Computation Using Hub Labeling

AAAI 2023technical

Finding shortest paths in a Euclidean plane containing polygonal obstacles is a well-studied problem motivated by a variety of real-world applications. The state-of-the-art algorithms require finding obstacle corners visible to the source and target, and need to consider potentially a large number…

2021

Hierarchical Graph Traversal for Aggregate k Nearest Neighbors Search in Road Networks (Extended Abstract)

IJCAI 2021poster

A k nearest neighbors (kNN) query finds k closest points-of-interest (POIs) from an agent's location. In this paper, we study a natural extension of the kNN query for multiple agents, namely, the Aggregate k Nearest Neighbors (AkNN) query. An AkNN query retrieves k POIs with the smallest aggregate…

Cited by 0SourcePDFScholar
2020

Euclidean Pathfinding with Compressed Path Databases

IJCAI 2020poster

We consider optimal and anytime algorithms for the Euclidean Shortest Path Problem (ESPP) in two dimensions. Our approach leverages ideas from two recent works: Polyanya, a mesh-based ESPP planner which we use to represent and reason about the environment, and Compressed Path Databases, a speedup te…