activity
20112025
most citedInapproximability of Treewidth, One-Shot Pebbling, and Related Layout Problems

11 citations · 19 across the 4 of their papers we have counts for

collaborators

6 papers

cs.CR2025

ReFuzz: Reusing Tests for Processor Fuzzing with Contextual Bandits

Chen Chen, Zaiyan Xu, Mohamadreza Rostami +4

Processor designs rely on iterative modifications and reuse well-established designs. However, this reuse of prior designs also leads to similar vulnerabilities across multiple pro…

cs.CC2013

Pebbling Arguments for Tree Evaluation

David Liu

The Tree Evaluation Problem was introduced by Cook et al. in 2010 as a candidate for separating P from L and NL. The most general space lower bounds known for the Tree Evaluation P…

cs.FL2012

Universal Witnesses for State Complexity of Boolean Operations and Concatenation Combined with Star

Janusz Brzozowski, David Liu

We study the state complexity of boolean operations and product (concatenation, catenation) combined with star. We derive tight upper bounds for the symmetric differences and diffe…

cs.FL2012★ 4 cited

Universal Witnesses for State Complexity of Basic Operations Combined with Reversal

Janusz Brzozowski, David Liu

We study the state complexity of boolean operations, concatenation and star with one or two of the argument languages reversed. We derive tight upper bounds for the symmetric diffe…

cs.FL2012★ 4 cited

Syntactic Complexity of Finite/Cofinite, Definite, and Reverse Definite Languages

Janusz Brzozowski, David Liu

We study the syntactic complexity of finite/cofinite, definite and reverse definite languages. The syntactic complexity of a class of languages is defined as the maximal size of sy…

cs.CC2011★ 11 cited

Inapproximability of Treewidth, One-Shot Pebbling, and Related Layout Problems

Per Austrin, Toniann Pitassi, Yu Wu

We study the approximability of a number of graph problems: treewidth and pathwidth of graphs, one-shot black (and black-white) pebbling costs of directed acyclic graphs, and a var…