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Author |
Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico |
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Title |
Automatic Control Software Synthesis for Quantized Discrete Time Hybrid Systems |
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Report |
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2012 |
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abs/1207.4098 |
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Many Embedded Systems are indeed Software Based Control Systems, that is control systems whose controller consists of control software running on a microcontroller device. This motivates investigation on Formal Model Based Design approaches for automatic synthesis of embedded systems control software. This paper addresses control software synthesis for discrete time nonlinear systems. We present a methodology to overapproximate the dynamics of a discrete time nonlinear hybrid system H by means of a discrete time linear hybrid system L(H), in such a way that controllers for L(H) are guaranteed to be controllers for H. We present experimental results on the inverted pendulum, a challenging and meaningful benchmark in nonlinear Hybrid Systems control. |
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CoRR, Technical Report |
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yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
Sapienza @ mari @ |
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103 |
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Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico |
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Title |
A Map-Reduce Parallel Approach to Automatic Synthesis of Control Software |
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2012 |
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abs/1210.2276 |
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Many Control Systems are indeed Software Based Control Systems, i.e. control systems whose controller consists of control software running on a microcontroller device. This motivates investigation on Formal Model Based Design approaches for automatic synthesis of control software.
Available algorithms and tools (e.g., QKS) may require weeks or even months of computation to synthesize control software for large-size systems. This motivates search for parallel algorithms for control software synthesis.
In this paper, we present a map-reduce style parallel algorithm for control software synthesis when the controlled system (plant) is modeled as discrete time linear hybrid system. Furthermore we present an MPI-based implementation PQKS of our algorithm. To the best of our knowledge, this is the first parallel approach for control software synthesis.
We experimentally show effectiveness of PQKS on two classical control synthesis problems: the inverted pendulum and the multi-input buck DC/DC converter. Experiments show that PQKS efficiency is above 65%. As an example, PQKS requires about 16 hours to complete the synthesis of control software for the pendulum on a cluster with 60 processors, instead of the 25 days needed by the sequential algorithm in QKS. |
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CoRR, Technical Report |
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Sapienza @ mari @ |
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101 |
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Barbanera, Franco; Dezani-Ciancaglini, Mariangiola; Salvo, Ivano; Sassone, Vladimiro |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
A Type Inference Algorithm for Secure Ambients |
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Journal Article |
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2002 |
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Electronic Notes in Theoretical Computer Science |
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62 |
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83-101 |
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We consider a type discipline for the Ambient Calculus that associates ambients with security levels and constrains them to be traversed by or opened in ambients of higher security clearance only. We present a bottom-up algorithm that, given an untyped process P, computes a minimal set of constraints on security levels such that all actions during runs of P are performed without violating the security level priorities. Such an algorithm appears to be a prerequisite to use type systems to ensure security properties in the web scenario. |
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Elsevier |
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TOSCA 2001, Theory of Concurrency, Higher Order Languages and Types |
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yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
Sapienza @ mari @ Barbanera-Dezani-Salvo-Sassone:01 |
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73 |
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Bono, V.; Salvo, I. |
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Title |
A CuCh Interpretation of an Object-Oriented Language |
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Journal Article |
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2001 |
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Electronic Notes in Theoretical Computer Science |
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50 |
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2 |
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159-177 |
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CuCh machine extends pure lambda–calculus with algebraic data types and provides a the possibility of defining functions over the disjoint sum of algebras. We exploit such natural form of overloading to define a functional interpretation of a simple, but significant fragment of a typical object-oriented language. |
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Elsevier |
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BOTH 2001, Bohm’s theorem: applications to Computer Science Theory (Satellite Workshop of ICALP 2001) |
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yes |
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Call Number ![sorted by Call Number field, ascending order (up)](img/sort_asc.gif) |
Sapienza @ mari @ Bono-Salvo:BOTH01 |
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72 |
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Bucciarelli, Antonio; de Lorenzis, Silvia; Piperno, Adolfo; Salvo, Ivano |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Some Computational Properties of Intersection Types (Extended Abstract) |
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1999 |
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109-118 |
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lambda calculusCurry types, intersection types, lambda-definability, lambda-terms, strong normalization |
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This paper presents a new method for comparing computation-properties of λ-terms typeable with intersection types with respect to terms typeable with Curry types. In particular, strong normalization and λ-definability are investigated. A translation is introduced from intersection typing derivations to Curry typeable terms; the main feature of the proposed technique is that the translation is preserved by β-reduction. This allows to simulate a computation starting from a term typeable in the intersection discipline by means of a computation starting from a simply typeable term. Our approach naturally leads to prove strong normalization in the intersection system by means of purely syntactical techniques. In addition, the presented method enables us to give a proof of a conjecture proposed by Leivant in 1990, namely that all functions uniformly definable using intersection types are already definable using Curry types. |
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IEEE Computer Society |
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Sapienza @ mari @ bucciarelli-delorenzis-piperno-salvo:99 |
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71 |
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Bucciarelli, Antonio; Piperno, Adolfo; Salvo, Ivano |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Intersection types and λ-definability |
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Journal Article |
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2003 |
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Mathematical Structures in Computer Science |
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13 |
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1 |
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15-53 |
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This paper presents a novel method for comparing computational properties of λ-terms that are typeable with intersection types, with respect to terms that are typeable with Curry types. We introduce a translation from intersection typing derivations to Curry typeable terms that is preserved by β-reduction: this allows the simulation of a computation starting from a term typeable in the intersection discipline by means of a computation starting from a simply typeable term. Our approach proves strong normalisation for the intersection system naturally by means of purely syntactical techniques. The paper extends the results presented in Bucciarelli et al. (1999) to the whole intersection type system of Barendregt, Coppo and Dezani, thus providing a complete proof of the conjecture, proposed in Leivant (1990), that all functions uniformly definable using intersection types are already definable using Curry types. |
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Cambridge University Press |
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New York, NY, USA |
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0960-1295 |
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Sapienza @ mari @ Bucciarelli-Piperno-Salvo:MSCS-03 |
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69 |
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Bucciarelli, Antonio; Salvo, Ivano |
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Title |
Totality, Definability and Boolean Circuits |
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1998 |
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1443 |
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808-819 |
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In the type frame originating from the flat domain of boolean values, we single out elements which are hereditarily total. We show that these elements can be defined, up to total equivalence, by sequential programs. The elements of an equivalence class of the totality equivalence relation (totality class) can be seen as different algorithms for computing a given set-theoretic boolean function. We show that the bottom element of a totality class, which is sequential, corresponds to the most eager algorithm, and the top to the laziest one. Finally we suggest a link between size of totality classes and a well known measure of complexity of boolean functions, namely their sensitivity. |
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Springer |
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Sapienza @ mari @ bucciarelli-salvo:98 |
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70 |
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Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Synthesis of Quantized Feedback Control Software for Discrete Time Linear Hybrid Systems |
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Conference Article |
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2010 |
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Computer Aided Verification |
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180-195 |
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We present an algorithm that given a Discrete Time Linear Hybrid System returns a correct-by-construction software implementation K for a (near time optimal) robust quantized feedback controller for along with the set of states on which K is guaranteed to work correctly (controllable region). Furthermore, K has a Worst Case Execution Time linear in the number of bits of the quantization schema. |
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Springer Berlin / Heidelberg |
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Touili, T.; Cook, B.; Jackson, P. |
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Lecture Notes in Computer Science |
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6174 |
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Sapienza @ mari @ cav2010 |
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16 |
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Alimguzhin, Vadim; Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico |
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Title |
Automatic Control Software Synthesis for Quantized Discrete Time Hybrid Systems |
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Conference Article |
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2012 |
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Proceedings of the 51th IEEE Conference on Decision and Control, CDC 2012, December 10-13, 2012, Maui, HI, USA |
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6120-6125 |
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IEEE |
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978-1-4673-2065-8 |
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Techreport version can be found at http://arxiv.org/abs/1207.4098 |
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yes |
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Sapienza @ mari @ cdc12 |
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96 |
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Coppo, Mario; Dezani-Ciancaglini, Mariangiola; Giovannetti, Elio; Salvo, Ivano |
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Title |
Mobility Types for Mobile Processes in Mobile Ambients |
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Journal Article |
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2003 |
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Electr. Notes Theor. Comput. Sci. |
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78 |
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We present an ambient-like calculus in which the open capability is dropped, and a new form of “lightweight  process mobility is introduced. The calculus comes equipped with a type system that allows the kind of values exchanged in communications and the access and mobility properties of processes to be controlled. A type inference procedure determines the “minimal  requirements to accept a system or a component as well typed. This gives a kind of principal typing. As an expressiveness test, we show that some well known calculi of concurrency and mobility can be encoded in our calculus in a natural way. |
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Sapienza @ mari @ Coppo-Dezani-Giovannetti-Salvo:03 |
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74 |
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