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  1. Proceedings of the 2015 ACM SIGPLAN International Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA 2015)
  2. Automating grammar comparison
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Detecting redundant CSS rules in HTML5 applications: a tree rewriting approach
Synthesis of layout engines from relational constraints
Conditionally correct superoptimization
AutoMO: automatic inference of memory order parameters for C/C++11
Interactively verifying absence of explicit information flows in Android apps
Declarative fence insertion
Accurate profiling in the presence of dynamic compilation
Static analysis of event-driven Node.js JavaScript applications
Runtime pointer disambiguation
Using C language extensions for developing embedded software: a case study
Remote-scope promotion: clarified, rectified, and verified
Automating ad hoc data representation transformations
A co-contextual formulation of type rules and its application to incremental type checking
SATCheck: SAT-directed stateless model checking for SC and TSO
A sound and optimal incremental build system with dynamic dependencies
Selective control-flow abstraction via jumping
Valor: efficient, software-only region conflict exceptions
ShamDroid: gracefully degrading functionality in the presence of limited resource access
Finding deep compiler bugs via guided stochastic program mutation
Fast, multicore-scalable, low-fragmentation memory allocation through large virtual memory and global data structures
EXPLORER : query- and demand-driven exploration of interprocedural control flow properties
Performance problems you can fix: a dynamic analysis of memoization opportunities
How scale affects structure in Java programs
Incremental computation with names
Tracing vs. partial evaluation: comparing meta-compilation approaches for self-optimizing interpreters
Disjointness domains for fine-grained aliasing
Programming with enumerable sets of structures
FlashMeta: a framework for inductive program synthesis
Automating grammar comparison
Automatic memory reclamation for lock-free data structures
Scalable race detection for Android applications
Vectorization of apply to reduce interpretation overhead of R
Probability type inference for flexible approximate programming
Giga-scale exhaustive points-to analysis for Java in under a minute
RAIVE: runtime assessment of floating-point instability by vectorization
Use at your own risk: the Java unsafe API in the wild
Checks and balances: constraint solving without surprises in object-constraint programming languages
Effectively mapping linguistic abstractions for message-passing concurrency to threads on the Java virtual machine
The chemical approach to typestate-oriented programming
Stateless model checking of event-driven applications
Scrap your boilerplate with object algebras
Reasoning about the POSIX file system: local update and global pathnames
Protocol-based verification of message-passing parallel programs
Versatile yet lightweight record-and-replay for Android
Synthesizing Java expressions from free-form queries
Cross-layer memory management for managed language applications
Galois transformers and modular abstract interpreters: reusable metatheory for program analysis
Automated backward error analysis for numerical code
Approximate computation with outlier detection in Topaz
Optimizing hash-array mapped tries for fast and lean immutable JVM collections
Partial evaluation of machine code
Customizable gradual polymorphic effects for Scala
Learning a strategy for adapting a program analysis via bayesian optimisation

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Automating grammar comparison

Content Provider ACM Digital Library
Author Kuncak, Viktor Gulwani, Sumit Madhavan, Ravichandhran Mayer, Mikaƫl
Abstract We consider from a practical perspective the problem of checking equivalence of context-free grammars. We present techniques for proving equivalence, as well as techniques for finding counter-examples that establish non-equivalence. Among the key building blocks of our approach is a novel algorithm for efficiently enumerating and sampling words and parse trees from arbitrary context-free grammars; the algorithm supports polynomial time random access to words belonging to the grammar. Furthermore, we propose an algorithm for proving equivalence of context-free grammars that is complete for LL grammars, yet can be invoked on any context-free grammar, including ambiguous grammars. Our techniques successfully find discrepancies between different syntax specifications of several real-world languages, and are capable of detecting fine-grained incremental modifications performed on grammars. Our evaluation shows that our tool improves significantly on the existing available state of the art tools. In addition, we used these algorithms to develop an online tutoring system for grammars that we then used in an undergraduate course on computer language processing. On questions involving grammar constructions, our system was able to automatically evaluate the correctness of 95% of the solutions submitted by students: it disproved 74% of cases and proved 21% of them. .
Starting Page 183
Ending Page 200
Page Count 18
File Format PDF
ISBN 9781450336895
DOI 10.1145/2814270.2814304
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2015-10-23
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Proof system Equivalence Counter-examples Context-free grammars Tutoring system
Content Type Text
Resource Type Article
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