5 papers
Optimal Non-Adaptive Vantage Point Selection
Jie Gao, Nicole Wein, Chang Wu
We study the \emph{vantage point selection} problem, introduced by Ashvinkumar, Chowdhury, Gao, Goswami, Mitchell, and Polishchuk [WADS'25] to model the problem of estimating bottl…
Tight Bounds for Memory Allocation With and Without Request Fragmentation
Michael A. Bender, Alex Conway, Martín Farach-Colton +3
The classical memory-allocation problem captures the task of placing objects of different sizes in memory, while minimizing the so-called memory high-water mark. It has been known…
Bounding the Fragmentation of B-Trees Subject to Batched Insertions
Michael A. Bender, Aaron Bernstein, Nairen Cao +5
The issue of internal fragmentation in data structures is a fundamental challenge in database design. A seminal result of Yao in this field shows that evenly splitting the leaves o…
Covering Approximate Shortest Paths with DAGs
Sepehr Assadi, Gary Hoppenworth, Nicole Wein
We define and study analogs of probabilistic tree embedding and tree cover for directed graphs. We define the notion of a DAG cover of a general directed graph : a small collect…
Low Sensitivity Hopsets
Vikrant Ashvinkumar, Aaron Bernstein, Chengyuan Deng +2
Given a weighted graph , a -hopset is an edge set such that for any , where can reach in , there is a path from to in $G \c…