J 2014

STL*: Extending signal temporal logic with signal-value freezing operator

BRIM, Luboš, Petr DLUHOŠ, David ŠAFRÁNEK and Tomáš VEJPUSTEK

Basic information

Original name

STL*: Extending signal temporal logic with signal-value freezing operator

Authors

BRIM, Luboš (203 Czech Republic, belonging to the institution), Petr DLUHOŠ (203 Czech Republic, belonging to the institution), David ŠAFRÁNEK (203 Czech Republic, guarantor, belonging to the institution) and Tomáš VEJPUSTEK (203 Czech Republic, belonging to the institution)

Edition

Information and computation, Academic Press, 2014, 0890-5401

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10201 Computer sciences, information science, bioinformatics

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.830

RIV identification code

RIV/00216224:14330/14:00075313

Organization unit

Faculty of Informatics

UT WoS

000337655300005

Keywords in English

Signal Temporal Logic; dynamical systems; robustness analysis; value-freezing logic

Tags

International impact, Reviewed
Změněno: 17/4/2018 08:49, prof. RNDr. Luboš Brim, CSc.

Abstract

V originále

To express temporal properties of dense-time real-valued signals, the Signal Temporal Logic (STL) has been defined by Maler et al. The work presented a monitoring algorithm deciding the satisfiability of STL formulae on finite discrete samples of continuous signals. The logic is not expressive enough to sufficiently distinguish oscillatory properties important in biology. In this paper we introduce the extended logic STL* in which STL is augmented with a signal-value freezing operator allowing to express (and distinguish) various dynamic aspects of oscillations. This operator may be nested for further increase of expressiveness. The logic is supported by a monitoring algorithm prototyped in Matlab for the fragment that avoids nesting of the freezing operator. The monitoring procedure for STL* is evaluated on a sample oscillatory signal with varied parameters. Application of the extended logic is demonstrated on a case study of a biological oscillator. We also discuss expressive power of STL with respect to STL*.

Links

EE2.3.20.0256, research and development project
Name: Vytvoření výzkumného týmu a mezinárodního konzorcia pro počítačový model buňky sinice