Streaming Property Testing of Visibly Pushdown Languages. François, N., Magniez, F., de Rougemont, M., & Serre, O. In Proceedings of the 24th Annual European Symposium (ESA 2016), 2016. abstract bibtex In the context of language recognition, we demonstrate the superiority of streaming property testers against streaming algorithms and property testers, when they are not combined. Initiated by Feigenbaum et al, a streaming property tester is a streaming algorithm recognizing a language under the property testing approximation: it must distinguish inputs of the language from those that are ε-far from it, while using the smallest possible memory (rather than limiting its number of input queries). Our main result is a streaming ε-property tester for visibly pushdown languages (VPL) with one-sided error using memory space poly((log n)/ε). This constructions relies on a new (non-streaming) property tester for weighted regular languages based on a previous tester by Alon et al. We provide a simple application of this tester for streaming testing special cases of instances of VPL that are already hard for both streaming algorithms and property testers. Our main algorithm is a combination of an original simulation of visibly pushdown automata using a stack with small height but possible items of linear size. In a second step, those items are replaced by small sketches. Those sketches relies on a notion of suffix-sampling we introduce. This sampling is the key idea connecting our streaming tester algorithm to property testers.
@inproceedings{fmrs15,
Author={Nathanaël François and Frédéric Magniez and Michel de Rougemont and Olivier Serre},
Title={Streaming Property Testing of Visibly Pushdown Languages},
booktitle = {Proceedings of the 24th Annual European Symposium (ESA 2016)},
year = {2016},
fulltexturl ={http://arxiv.org/abs/1505.03334},
abstract = {In the context of language recognition, we demonstrate the superiority of streaming property testers against streaming algorithms and property testers, when they are not combined. Initiated by Feigenbaum et al, a streaming property tester is a streaming algorithm recognizing a language under the property testing approximation: it must distinguish inputs of the language from those that are ε-far from it, while using the smallest possible memory (rather than limiting its number of input queries). Our main result is a streaming ε-property tester for visibly pushdown languages (VPL) with one-sided error using memory space poly((log n)/ε). This constructions relies on a new (non-streaming) property tester for weighted regular languages based on a previous tester by Alon et al. We provide a simple application of this tester for streaming testing special cases of instances of VPL that are already hard for both streaming algorithms and property testers. Our main algorithm is a combination of an original simulation of visibly pushdown automata using a stack with small height but possible items of linear size. In a second step, those items are replaced by small sketches. Those sketches relies on a notion of suffix-sampling we introduce. This sampling is the key idea connecting our streaming tester algorithm to property testers.}
}
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