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2012 Software Unknown
Property meta model.
Bertolino A., Di Marco A., Lonetti F.
PMM is a generic and comprehensive Property Meta- Model. It implements a model-driven approach for defining non-functional properties and metrics.Project(s): CONNECT via OpenAIRE

See at: labsedc.isti.cnr.it | CNR ExploRA


2018 Contribution to journal Open Access OPEN
Special issue on automation of software testing: improving practical applicability
Budnik C., Fraser G., Lonetti F., Zhu H.
Source: Software quality journal 26 (2018): 1415–1419. doi:10.1007/s11219-018-9410-1
DOI: 10.1007/s11219-018-9410-1
Metrics:


See at: ISTI Repository Open Access | Software Quality Journal Restricted | link.springer.com Restricted | CNR ExploRA


2012 Software Unknown
XaCml REquests derivAtion for TEsting.
Bertolino A., Daoudagh S., Lonetti F., Marchetti E.
X-CREATE is a framework for the automated derivation of a test suite starting by a XACML policy. It implements different tests derivation strategies based on combinatorial approaches of the policy values.

See at: labsedc.isti.cnr.it | CNR ExploRA


2007 Conference article Restricted
Real-time video transmission in vehicular networks
Bonuccelli M., Giunta G., Lonetti F., Martelli F.
This paper addresses the problem of real-time video transmission in vehicular networks. We show that the video quality of real-time services is greatly decreased when there is network congestion in different traffic situations. We propose a solution that applies frame skipping and transcoding together with frame rate reduction techniques over IEEE 802.11 based vehicular networks. Our approach improves the quality of video transmission while reducing the bandwidth consumption.Source: MObile Networking for Vehicular Environments (Move 2007), pp. 115–120, Anchorage, Alaska, USA, 11 May 2007
DOI: 10.1109/move.2007.4300815
Metrics:


See at: doi.org Restricted | CNR ExploRA


2009 Conference article Unknown
Dynamic frame rate adjustment for real-time video in vehicular networks
Bonuccelli M. A., Giunta G., Lonetti F., Martelli F.
In ad-hoc networks, the video quality of real-time services is greatly decreased when bandwidth reduction and channel access delay occur. In this paper, a dynamic frame rate adjustment of video transmissions is proposed in case of network congestion. Simulation results show that our approach improves the quality of real-time video over IEEE 802.11 based vehicular networks by guaranteeing a better bandwidth usage.Source: 16th International Conference on Systems, Signals and Image Processing, Chalkida, Greece, 18-20 June 2009

See at: CNR ExploRA


2011 Conference article Restricted
Towards Automated Robustness Testing of BPEL Orchestrators
Manova D., Ilieva S., Lonetti F., Bertolino A., Bartolini C.
Recently, a growing interest on robustness testing of services composition is emerging. In this paper, we propose a robustness testing approach of services composition by means of fault injection of the BPEL process. The proposed solution is implemented into the existing TASSA framework aimed at functional and non-functional testing of service applications. A case study is provided for assessing the effectiveness of the proposed approach.Source: 12th International Conference on Computer Systems and Technologies, CompSysTech '11, pp. 659–664, Vienna, Austria, 16-17 June 2011
DOI: 10.1145/2023607.2023717
Project(s): NESSOS via OpenAIRE, SISTER via OpenAIRE
Metrics:


See at: ACM Digital Library Restricted | doi.org Restricted | CNR ExploRA


2012 Contribution to conference Restricted
Property-driven software engineering approach.
Di Marco A., Lonetti F., De Angelis G.
We present a research roadmap that defines an enhanced model-driven software engineering approach focused on non-functional properties models. Currently, we have implemented two sub-processes of this roadmap: Property Modeling and Monitoring. We provide a property-driven approach to runtime monitoring based on a comprehensive Property Meta-Model (PMM) and on a generic configurable event-based monitoring infrastructure.Source: Fifth International Conference on Software Testing, Verification and Validation, pp. 966–967, Montreal, Canada, 17-21 April 2012
DOI: 10.1109/icst.2012.207
Project(s): CONNECT via OpenAIRE
Metrics:


See at: doi.org Restricted | ieeexplore.ieee.org Restricted | CNR ExploRA


2007 Doctoral thesis Unknown
Temporal Video Transcoding in Mobile Systems
Lonetti F.
This thesis approaches the problem of temporal video transcoding in wireless networks. The general aim is to investigate temporal transcoding for improving real-time video communication of multimedia services, by considering peculiar features of infrastructured and ad hoc wireless networks. We address the main issues of temporal transcoding, pointing out their characteristic problems and presenting our original proposals (motion vector composition algorithm and frame skipping policies). We focus on IEEE 802.11 vehicular networks, for presenting a temporal transcoding system able to improve real-time video communication, overcoming the typical network congestion and reducing late frames.

See at: CNR ExploRA


2005 Journal article Unknown
Video transcoding architectures for multimedia real time services
Bonuccelli M. A., Lonetti F., Martelli F.
In third generation telecommunication systems, communication technologies are very heterogeneous. The goal of transcoding is to enable the interoperability of heterogeneous multimedia networks reducing the complexity and the running time by avoiding the total decoding and re-encoding of a video stream. Temporal transcoding is one of the solutions to reduce the overall bit rate by dropping some frames of the video sequence. We propose two temporal transcoding architectures allowing real-time communication. We compare the performance of both our architectures with that of a quality transcoder. A better performance is achieved by quality transcoding for videos with a lot of motion and by temporal transcoding for videos with little motion.Source: ERCIM news 62 (2005): 39–40.

See at: CNR ExploRA


2005 Conference article Unknown
A fast skipping policy for H.263 video transcoder
Bonuccelli A. M., Lonetti F., Martelli F.
Third generation mobile communication systems offer many advanced types of multimedia services, as video streaming, video telephony and video conference. Transcoding is adopted to deliver video content to a broad range of end users with different preferences and bandwidth constraints. Temporal transcoding is one of the solutions to reduce the overall bit rate by dropping some frames of the video sequence. We propose a temporal transcoding architecture with a new frame skipping policy allowing real-time communication. Simulation results show that our temporal transcoding achieves a better performance than a quality one, and the proposed frame skipping strategy is able to strongly reduce the computation time of the transcoding process.Source: IWSSIP 2005. 12th International Workshop on Systems, Signals and Image Processing, pp. 355–360, Chalkida, 22-2/0/2005

See at: CNR ExploRA


2005 Conference article Unknown
Temporal transcoding for mobile video communication
Bonuccelli A. M., Lonetti F., Martelli F.
Third generation mobile communication systems will provide more advanced types of interactive and distribution services, and video is one of the most prominent applications for multimedia communications. Adapting the media content to different networks characteristics (communication links and access terminals), in order to enable video delivery with acceptable service quality, is one of the most important problems in this setting. In this paper, we consider one of the video adaptation methods, namely video transcoding, and we present new buffer-based strategies for temporal video transcoding in a real-time context. Simulation results show that our strategies achieve a good performance in hard transcoding conditions also.Source: Transcoding, Frame Skipping, Video Quality, 2nd International Conference on Mobile and Ubiquitous Systems: Networking and Services (Mobiquitous 2005), pp. 502–506, San Diego, 17-2, July 2005

See at: CNR ExploRA


2005 Report Open Access OPEN
A fast skipping policy for H.263 video transcoder
Bonuccelli M. A., Lonetti F., Martelli F.
Third generation mobile communication systems offer many advanced types of multimedia services, as video streaming, video telephony and video conference. Transcoding is adopted to deliver video content to a broad range of end users with different preferences and bandwidth constraints. Temporal transcoding is one of the solutions to reduce the overall bit rate by dropping some frames of the video sequence. We propose a temporal transcoding architecture with a new frame skipping policy allowing real-time communication. Simulation results show that our temporal transcoding achieves a better performance than a quality one, and the proposed frame skipping strategy is able to strongly reduce the computation time of the transcoding process.Source: ISTI Technical reports, 2005

See at: ISTI Repository Open Access | CNR ExploRA


2005 Report Unknown
Randomized hashing for tag Identification in RFID networks
Bonuccelli M. A., Lonetti F., Martelli F.
In this paper we approach the problem of identifying a set of objects in an RFID system. We propose a new query protocol based on an hashing mechanism. All tags compute a simple random function whose result range is set by the reader. Then, the reader queries all possible values in the chosen range, and tags answer with their ID when the output of the random hash function, applied to their ID, equals the number queried by the reader. Collisions may occur. In such a case, a new round of queries, with a different range, is performed. Simulation results show that our method performs better than the proposed query protocols, in terms of number of queries, which is a measure strictly related to delay.Source: ISTI Technical reports, 2005

See at: CNR ExploRA


2005 Report Open Access OPEN
Temporal transcoding for mobile video communication
Bonuccelli M. A., Lonetti F., Martelli F.
Third generation mobile communication systems will provide more advanced types of interactive and distribution services, and video is one of the most prominent applications for multimedia communications. Adapting the media content to different networks characteristics (communication links and access terminals), in order to enable video delivery with acceptable service quality, is one of the most important problems in this setting. In this paper, we consider one of the video adaptation methods, namely video transcoding, and we present new buffer-based strategies for temporal video transcoding in a real-time context. Simulation results show that our strategies achieve a good performance in hard transcoding conditions also.Source: ISTI Technical reports, 2005

See at: ISTI Repository Open Access | CNR ExploRA


2011 Conference article Restricted
An automated approach to robustness testing of BPEL orchestrations
Ilieva Sylvia, Manova Denitsa, Manova Ilina, Bartolini Cesare, Bertolino Antonia, Lonetti Francesca
Service compositions are increasingly used for the fast development of loosely-coupled dynamic distributed applications. Such compositions are prone to potential failures arising from their complex interaction scheme and from various kinds of network problems. Functional testing could overlook such failures, hence we claim it is important to specifically consider test cases for validating how the composite service reacts when invalid or unexpected events occur.We have developed the TASSA framework for automated generation and execution of robustness test cases. The framework addresses BPEL orchestrations and relies on fault-injection mechanisms. In the paper we motivate BPEL robustness testing, introduce the framework and present its preliminary assessment on a case studySource: The 6th IEEE International Symposium on Service Oriented System Engineering, SOSE 2011, pp. 193–203, Irvine, CA, USA, 12-14 December 2011
DOI: 10.1109/sose.2011.6139108
Project(s): NESSOS via OpenAIRE
Metrics:


See at: doi.org Restricted | ieeexplore.ieee.org Restricted | CNR ExploRA


2003 Journal article Open Access OPEN
Integrating GSM Networks and Internet: New Unstructured Services
Arrighi R., Bonuccelli M. A., Lonetti F., Martelli F.
Three communication networks, namely the emerging 'mobile' wireless, the classical 'fixed' wireline, and the alternative 'computer-centric' internet, are evolving in a relatively independent way. However, their interactions increase day by day. It is of paramount importance to investigate how these three systems could be integrated in order to form a common communication space, in which the users of any one of the networks can easily and 'transparently' access the other two. The main purpose of a project currently under way at PisaTel is to investigate the feasibility of such an integration. The work is being carried out within the java JAIN MAP API international project.Source: ERCIM news 54 (2003): 27–28.

See at: www.ercim.org Open Access | CNR ExploRA


2007 Conference article Restricted
Motion vector composition algorithm in H.264 transcoding
Lonetti F., Martelli F.
In temporal transcoding, motion vector composition algorithms are used to reduce the computation time of the transcoding process. In this paper, we propose a multi-level motion vector composition scheme for H.264 transcoding, with the Bilinear Interpolation (BI) function. Simulation results show that the proposed algorithm achieves a video quality comparable with that of the motion estimation process with the advantage of greatly reducing the computation time of transcoding.Source: 14th International Conference on Systems, Signals and Image Processing (IWSSIP07) and 6th EURASIP Conference Focused on Speech and Image Processing, Multimedia Communications and Services. EC-SIPMCS 2007, Maribor, Slovenia, 27-30 giugno 2007
DOI: 10.1109/iwssip.2007.4381126
Metrics:


See at: doi.org Restricted | CNR ExploRA


2008 Conference article Open Access OPEN
Let the puppets move! Automated testbed generation for service-oriented mobile applications
Bertolino A., De Angelis G., Lonetti F., Sabetta A.
There is a growing interest for techniques and tools facilitating the testing of mobile systems. The movement of nodes is one of the relevant factors of context change in ubiquitous systems and a key challenge in the validation of context-aware applications. An approach is proposed to generate a testbed for service-oriented systems that takes into account a mobility model of the nodes of the network in which the accessed services are deployed. This testbed allows a tester to assess off-line the QoS properties of a service under test, by considering possible variations in the response of the interacting services due to node mobility.Source: The 34th EUROMICRO Conference on Software Engineering and Advanced Applications (SEAA 2008), pp. 321–338, Parma, Italy, 3-5 Settembre 2008
DOI: 10.1109/seaa.2008.33
Metrics:


See at: ISTI Repository Open Access | doi.org Restricted | ieeexplore.ieee.org Restricted | CNR ExploRA


2010 Conference article Restricted
X-MuT: a tool for the generation of XSLT mutants
Lonetti F., Marchetti E.
Mutation testing has been historically applied to many programming languages as a white box testing technique. In this paper, we propose a set of mutation operator classes for XSLT language, and we implement them into a tool called X-MuT. The tool automatically generates the set of mutants and provides facilities to run a given test suite on the mutants and to compute the test suite effectiveness in terms of mutation score. We provide an example of X-MuT application to evaluate the effectiveness of an existing test suite for a XSLT stylesheet transforming the standard MARCXML to the Dublin Core format.Source: Seventh International Conference on the Quality of Information and Communications Technology, pp. 280–285, Porto, Portugal, 29 September-2 October 2010
DOI: 10.1109/quatic.2010.52
Project(s): TAS3 via OpenAIRE, TAS3 via OpenAIRE
Metrics:


See at: doi.org Restricted | CNR ExploRA


2003 Report Unknown
Integrating GSM networks and internet: new unstructured services
Arrighi R., Bonuccelli S., Lonetti F., Martelli F.
Three communication networks, namely the emerging 'mobile' wireless, the classical 'fixed' wireline, and the alternative 'computer-centric' internet, are evolving in a relatively independent way. However, their interactions increase day by day. It is of paramount importance to investigate how these three systems could be integrated in order to form a common communication space, in which the users of any one of the networks can easily and 'transparently' access the other two. The main purpose of a project currently under way at PisaTel is to investigate the feasibility of such an integration. The work is being carried out within the java JAIN MAP API international project.Source: ISTI Technical reports, 2003

See at: CNR ExploRA