| |
Records |
Links |
|
Author |
Della Penna, Giuseppe; Intrigila, Benedetto; Tronci, Enrico; Venturini Zilli, Marisa |
|
| |
Title |
Synchronized regular expressions |
Type |
Journal Article |
| |
Year |
2003 |
Publication |
Acta Inf. |
Abbreviated Journal |
|
|
| |
Volume |
39 |
Issue |
1 |
Pages  |
31-70 |
|
| |
Keywords |
|
|
| |
Abstract |
Text manipulation is one of the most common tasks for everyone using a computer. The increasing number of textual information in electronic format that every computer user collects everyday also increases the need of more powerful tools to interact with texts. Indeed, much work has been done to provide simple and versatile tools that can be useful for the most common text manipulation tasks. Regular Expressions (RE), introduced by Kleene, are well known in the formal language theory. RE have been extended in various ways, depending on the application of interest. In almost all the implementations of RE search algorithms (e.g. the egrep [15] UNIX command, or the Perl [20] language pattern matching constructs) we find backreferences, i.e. expressions that make reference to the string matched by a previous subexpression. Generally speaking, it seems that all kinds of synchronizations between subexpressions in a RE can be very useful when interacting with texts. In this paper we introduce the Synchronized Regular Expressions (SRE) as an extension of the Regular Expressions. We use SRE to present a formal study of the already known backreferences extension, and of a new extension proposed by us, which we call the synchronized exponents. Moreover, since we are dealing with formalisms that should have a practical utility and be used in real applications, we have the problem of how to present SRE to the final users. Therefore, in this paper we also propose a user-friendly syntax for SRE to be used in implementations of SRE-powered search algorithms. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ actainf03 |
Serial |
39 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Ciancamerla, Ester; Minichino, Michele; Serro, Stefano; Tronci, Enrico |
|
| |
Title |
Automatic Timeliness Verification of a Public Mobile Network |
Type |
Conference Article |
| |
Year |
2003 |
Publication |
22nd International Conference on Computer Safety, Reliability, and Security (SAFECOMP) |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
35-48 |
|
| |
Keywords |
|
|
| |
Abstract |
This paper deals with the automatic verification of the timeliness of Public Mobile Network (PMN), consisting of Mobile Nodes (MNs) and Base Stations (BSs). We use the Mur$\varphi$ Model Checker to verify that the waiting access time of each MN, under different PMN configurations and loads, and different inter arrival times of MNs in a BS cell, is always below a preassigned threshold. Our experimental results show that Model Checking can be successfully used to generate worst case scenarios and nicely complements probabilistic methods and simulation which are typically used for performance evaluation. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer |
Place of Publication |
Edinburgh, UK |
Editor |
Anderson, S.; Felici, M.; Littlewood, B. |
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
2788 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
978-3-540-20126-7 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ safecomp03 |
Serial |
38 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico |
|
| |
Title |
A Map-Reduce Parallel Approach to Automatic Synthesis of Control Software |
Type |
Conference Article |
| |
Year |
2013 |
Publication |
Proc. of International SPIN Symposium on Model Checking of Software (SPIN 2013) |
Abbreviated Journal |
International SPIN Symposium on Model Checking of Software |
|
| |
Volume |
|
Issue |
|
Pages |
43-60 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer - Verlag |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
7976 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
0302-9743 |
ISBN |
978-3-642-39175-0 |
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
Sapienza @ melatti @ |
Serial |
112 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico |
|
| |
Title |
Flexible Timeline-Based Plan Verification |
Type |
Conference Article |
| |
Year |
2009 |
Publication |
KI 2009: Advances in Artificial Intelligence, 32nd Annual German Conference on AI, Paderborn, Germany, September 15-18, 2009. Proceedings |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
49-56 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer |
Place of Publication |
|
Editor |
Mertsching, Bärbel; Hund, M.; Aziz, M.Z. |
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
5803 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
978-3-642-04616-2 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ Cffot09 |
Serial |
21 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Tronci, Enrico |
|
| |
Title |
Defining Data Structures via Böhm-Out |
Type |
Journal Article |
| |
Year |
1995 |
Publication |
J. Funct. Program. |
Abbreviated Journal |
|
|
| |
Volume |
5 |
Issue |
1 |
Pages |
51-64 |
|
| |
Keywords |
|
|
| |
Abstract |
We show that any recursively enumerable subset of a data structure can be regarded as the solution set to a B??hm-out problem. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ jfp95 |
Serial |
57 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Della Penna, Giuseppe; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico |
|
| |
Title |
Exploiting Hub States in Automatic Verification |
Type |
Conference Article |
| |
Year |
2005 |
Publication |
Automated Technology for Verification and Analysis: Third International Symposium, ATVA 2005, Taipei, Taiwan, October 4-7, 2005, Proceedings |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
54-68 |
|
| |
Keywords |
|
|
| |
Abstract |
In this paper we present a new algorithm to counteract state explosion when using Explicit State Space Exploration to verify protocol-like systems. We sketch the implementation of our algorithm within the Caching Mur$\varphi$ verifier and give experimental results showing its effectiveness. We show experimentally that, when memory is a scarce resource, our algorithm improves on the time performances of Caching Mur$\varphi$ verification algorithm, saving between 16% and 68% (45% on average) in computation time. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer |
Place of Publication |
|
Editor |
D.A. Peled; Y.-K. Tsay |
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
3707 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
3-540-29209-8 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ Dimt04 |
Serial |
83 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Della Penna, Giuseppe; Intrigila, Benedetto; Melatti, Igor; Tronci, Enrico; Venturini Zilli, Marisa |
|
| |
Title |
Finite Horizon Analysis of Stochastic Systems with the Mur$\varphi$ Verifier |
Type |
Conference Article |
| |
Year |
2003 |
Publication |
Theoretical Computer Science, 8th Italian Conference, ICTCS 2003, Bertinoro, Italy, October 13-15, 2003, Proceedings |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
58-71 |
|
| |
Keywords |
|
|
| |
Abstract |
Many reactive systems are actually Stochastic Processes. Automatic analysis of such systems is usually very difficult thus typically one simplifies the analysis task by using simulation or by working on a simplified model (e.g. a Markov Chain). We present a Finite Horizon Probabilistic Model Checking approach which essentially can handle the same class of stochastic processes of a typical simulator. This yields easy modeling of the system to be analyzed together with formal verification capabilities. Our approach is based on a suitable disk based extension of the Mur$\varphi$ verifier. Moreover we present experimental results showing effectiveness of our approach. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer |
Place of Publication |
|
Editor |
Blundo, C.; Laneve, C. |
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
2841 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
3-540-20216-1 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ DIMTZ03c |
Serial |
90 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico |
|
| |
Title |
On-the-Fly Control Software Synthesis |
Type |
Conference Article |
| |
Year |
2013 |
Publication |
Proceedings of International SPIN Symposium on Model Checking of Software (SPIN 2013) |
Abbreviated Journal |
International SPIN Symposium on Model Checking of Software |
|
| |
Volume |
|
Issue |
|
Pages |
61-80 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer - Verlag |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
7976 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
0302-9743 |
ISBN |
978-3-642-39175-0 |
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ melatti @ |
Serial |
111 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Bobbio, Andrea; Ciancamerla, Ester; Di Blasi, Saverio; Iacomini, Alessandro; Mari, Federico; Melatti, Igor; Minichino, Michele; Scarlatti, Alessandro; Tronci, Enrico; Terruggia, Roberta; Zendri, Emilio |
|
| |
Title |
Risk analysis via heterogeneous models of SCADA interconnecting Power Grids and Telco networks |
Type |
Conference Article |
| |
Year |
2009 |
Publication |
Proceedings of Fourth International Conference on Risks and Security of Internet and Systems (CRiSIS) |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
90-97 |
|
| |
Keywords |
|
|
| |
Abstract |
The automation of power grids by means of supervisory control and data acquisition (SCADA) systems has led to an improvement of power grid operations and functionalities but also to pervasive cyber interdependencies between power grids and telecommunication networks. Many power grid services are increasingly depending upon the adequate functionality of SCADA system which in turn strictly depends on the adequate functionality of its communication infrastructure. We propose to tackle the SCADA risk analysis by means of different and heterogeneous modeling techniques and software tools. We demonstrate the applicability of our approach through a case study on an actual SCADA system for an electrical power distribution grid. The modeling techniques we discuss aim at providing a probabilistic dependability analysis, followed by a worst case analysis in presence of malicious attacks and a real-time performance evaluation. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
Fourth International Conference on Risks and Security of Internet and Systems (CRiSIS) |
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ crisis09 |
Serial |
17 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Campagnano, Edoardo; Ciancamerla, Ester; Minichino, Michele; Tronci, Enrico |
|
| |
Title |
Automatic Analysis of a Safety Critical Tele Control System |
Type |
Conference Article |
| |
Year |
2005 |
Publication |
24th International Conference on: Computer Safety, Reliability, and Security (SAFECOMP) |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
94-107 |
|
| |
Keywords |
|
|
| |
Abstract |
We show how the Mur$\varphi$ model checker can be used to automatically carry out safety analysis of a quite complex hybrid system tele-controlling vehicles traffic inside a safety critical transport infrastructure such as a long bridge or a tunnel. We present the Mur$\varphi$ model we developed towards this end as well as the experimental results we obtained by running the Mur$\varphi$ verifier on our model. Our experimental results show that the approach presented here can be used to verify safety of critical dimensioning parameters (e.g. bandwidth) of the telecommunication network embedded in a safety critical system. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer |
Place of Publication |
Fredrikstad, Norway |
Editor |
Winther, R.; Gran, B. A.; Dahll, G. |
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
|
|
| |
Series Volume |
3688 |
Series Issue |
|
Edition |
|
|
| |
ISSN |
3-540-29200-4 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
Sapienza @ mari @ safecomp05 |
Serial |
32 |
|
| Permanent link to this record |
