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HI ALL ! My name is STEFANO

welcome to my web site !

HERE YOU WILL FIND A LOT OF THINGS ABOUT ME, MY WORK AND HOBBIES.

Hi there! My name is Stefano Turchi, I'm from Italy and I'm an engineer. I graduated in Computer Engineering (M.S.) in 2010 from the University of Florence and received a Ph.D. degree in Informatics, Systems and Telecommunications in 2014 from the same university. Currently I'm researching in the field of Smart Cities, Smart Grid, Waste Management and Green Technologies.

  • NAME
    STEFANO
  • BIRTH
    SEPTEMBER 4, 1981
  • HOBBY
    TRAVEL , MUSIC , ART , KNOWLEDGE
  • SURNAME
    TURCHI
  • DEGREE
    COMPUTER ENGINEER (M.S.)
  • POSITION
    POST-DOC FELLOW RESEARCHER
  • COUNTRY
    ITALY - FLORENCE
  • PHD
    INFORMATICS, SYSTEMS AND TLC
  • WEB
    WWW.STEFANOTURCHI.COM
 
RESUME
" MY ACADEMIC AND PROFESSIONAL RESUME "
 
 
PUBLICATIONS
" MY UPDATED PUBLICATIONS "
 
conference
2015

The dark side of the interconnection: security and privacy in the Web of Things

AUTHORS Catuogno, L.; Turchi, S..
15
CONFERENCE The Ninth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2015)

The Web of Things (WoT) promises to dramatically boost the potentiality of interconnecting smart and physical devices over the Internet as it not only enhances ergonomics and productivity of the Internet of Things (IoT), but it also introduces new capabilities for device interoperation and data aggregation and analysis. These advances pose the challenge of preserving data security and privacy (S&P), as well as the reliability of the overall infrastructure. Deploying existing S&P solutions and technologies in the WoT is not straightforward because of its potential vastness, its intrinsic inhomogeneity and the wide variety of involved entities and interests. In such scenario, every choice comes from a non-trivial trade-off among different aspects including security, availability and legal issues. In this paper, we investigate the nature of this trade-off, pointingout the different kinds of S&P issues and surveying some of the available solutions. In addition, we discuss the major issues raised while securing an existing WoT infrastructure.

workshop
2015

Latency-aware Composition of Virtual Functions in 5G

AUTHORS Martini, B.; Paganelli, F.; Cappanera, P.; Turchi, S.; Castoldi, P.
14
WORKSHOP IEEE International Workshop on Software Defined 5G Networks

The adoption of the virtualization paradigm in both computing and networking domains portends a landscape of heterogeneous service capabilities and resources pervasively distributed and interconnected and deeply integrated through the 5G network infrastructure. In this service ecosystem, dynamic service demand can be flexibly and elastically accomplished by composing heterogeneous services provisioned over a distributed and virtualized resource infrastructure. Indeed, with the term Virtual Functions we refer to virtual computing as well as network service capabilities (e.g., routers and middlebox functions provided as Virtual Network Functions). In order to cope with the increasingly resource intensive demand, these virtual functions will be deployed in distributed clusters of small-scale datacenters typically located in current exchanges at the network edge and will supplement those deployed in traditional large cloud datacenters. In this work we formulate the problem of composing, computing and networking Virtual Functions to select those nodes along the path that minimizes the overall latency (i.e. network and processing latency) in the above mentioned scenario. The optimization problem is formulated as a Resource Constrained Shortest Path problem on an auxiliary layered graph accordingly defined. The layered structure of the graph ensures that the order of VFs specified in the request is preserved. Additional constraints can be also taken into account in the graph construction phase. Finally, we provide a use case preliminary evaluation of the proposed model.

journal
2015

Appliance Recognition in an OSGi-based Home Energy Management Gateway

AUTHORS Paganelli, F.; Paradiso, F.; Turchi, S.; Luchetta, A.; Castrogiovanni, P.; Giuli, D.
13
JOURNAL International Journal of Distributed Sensor Network

The rational use and management of energy is considered a key societal and technological challenge. Home Energy Management Systems (HEMS) have been introduced especially in private home domains to support users in managing and controlling energy consuming devices. Recent studies have shown that informing users about their habits with appliances as well as their usage pattern can help to achieve energy reduction in private households. This requires instruments able to monitor energy consumption at fine grain level and provide this information to consumers. While most existing approaches for load disaggregation and classification requires high-frequency monitoring data, in this paper we propose an approach that exploits low-frequency monitoring data gathered by meters (i.e. smart plugs) displaced in the home. Moreover, while most existing works dealing with appliance classification delegate the classification task to a remote central server, we propose a distributed approach where data processing and appliance recognition is performed locally in the home gateway. Our approach is based on a distributed load monitoring system made of smart plugs attached to devices and connected to a home gateway via the ZigBee protocol. The home gateway is based on the OSGi platform, collects data from home devices and hosts both data processing and user interaction logic.

journal
2015

A Web of Things framework for RESTful applications and its experimentation in a Smart City

AUTHORS Paganelli, F.; Turchi, S.; Giuli, D.
12
JOURNAL IEEE Systems Journal

The Web of Things is as an active research field which aims at promoting the easy access and handling of smart things' digital representations through the adoption of Web standards and technologies. While huge research and development efforts have been spent on lower-level networks and software technologies, it has been recognized that little experience exists instead in modeling and building applications for the Web of Things. Although several works have proposed REST-inspired approaches for the Web of Things, a main limitation is that poor support is provided to web developers for speeding up the development of Web of Things applications, while taking full advantage of REST benefits. In this work we propose a framework which supports developers in modeling smart things as web resources, exposing them through RESTful APIs, and developing applications on top of them. The framework consists of a Web Resource information model, a middleware and tools for developing and publishing smart things' digital representations on the Web. We discuss main framework implementation choices and its compliance with REST guidelines. Finally, we report on our test activities carried out within the SmartSantander European Project to evaluate the use and proficiency of our framework in a smart city scenario.

conference
2014

Web-enabled processing of smart things resources for WoT applications

AUTHORS Turchi, S.; Paganelli, F.; Giuli, D.
11
CONFERENCE Euro Med Telco Conference 2014 - 53rd FITCE International Congress

The Web of Things is an active research field which aims at promoting Web standards and technologies adoption for handling smart things digital representations. In this context, many studies acknowledge that REST paradigm plays a decisive role, and this has prompted the emergence of systems for Web representation and management of real-world objects. However, objects exposure is only a first step. In fact, it is very likely that a client that exploits these representations to retrieve data from objects, also needs to process them. Typically, this processing is performed by an application which, in addition, has the burden of results exposure. In a data reuse perspective, these results are valuable: will they be re-exposed? If so, will they be exposed in a way enabling easy reuse? In this paper we present a graph model for RESTful publishing of Web resources in a WoT scenario and its implementation through the InterDataNet middleware. This graph model supports the definition of scriptable vertexes for processing other resources information. In this way, the paradigm is subverted: there is no need to set up an application to process smart objects information since the processing is externalized in a vertex of the resource model. Consequently, results RESTful exposure is utterly borne by the middleware. We also introduce an extension of the model, to support event-driven capabilities.

journal
2014

Design of a RESTful Web Information System for Drug Prescription and Administration

AUTHORS Bianchi, L.; Paganelli, F.; Pettenati, M.; Turchi, S.; Ciofi, L.; Iadanza, E.; Giuli, D.
10
JOURNAL IEEE Journal of Biomedical and Health Informatics

Drug prescription and administration processes strongly impact on the occurrence of risks in medical settings for they can be sources of adverse drug events (ADEs). A properly engineered use of information and communication technologies has proven to be a promising approach to reduce these risks. In this study, we propose PHARMA, a web information system which supports healthcare staff in the secure cooperative execution of drug prescription, transcription and registration tasks. PHARMA allows the easy sharing and management of documents containing drug-related information (i.e., drug prescriptions, medical reports, screening), which is often inconsistent and scattered across different information systems and heterogeneous organization domains (e.g., departments, other hospital facilities). PHARMA enables users to access such information in a consistent and secure way, through the adoption of REST and web-oriented design paradigms and protocols. We describe the implementation of the PHARMA prototype, and we discuss the results of the usability evaluation that we carried out with the staff of a hospital in Florence, Italy.

workshop
2014

A lightweight linked data implementation for modeling the Web of Things

AUTHORS Turchi, S. Paganelli, F., Bianchi, L., Giuli, D.
9
WORKSHOP Pervasive Computing and Communications Workshops (PERCOM Workshops), 2014 IEEE International Conference on (pp. 123-128). IEEE.

In recent years, common-use devices' equipment has seen a leap transition in terms of shipped technology, introducing the so called “smart things” to the consumer market. To take full advantage of opportunities arising from connectivity, smart things approached the application realm bringing the novel Web of Things vision to life. In this paper, we propose an approach for modeling and implementing the Web of Things for a Smart City environment that relies on a lightweight implementation of Linked Data. We represent a smart thing as a graph of granular and individually addressable information pieces called IDN-Document. IDN-Documents are structured web resources that can be aggregated, reused and combined to build collaboration oriented services. IDN-Documents can be managed by the InterDataNet (IDN) middleware, which allows to easily publish and handling resources on the web by leveraging the Linked Data and Representational State Transfer paradigms. We also provide a tool suite for supporting developers with easy-to-use tools in designing and developing web applications according to our Web of Things implementation approach. These technologies are currently under experimentation in the real smart city of Santander, Spain, in the context of the SmartSantader European project.

conference
2014

An information-centric system for building the Web of Things

AUTHORS Turchi, S.
8
CONFERENCE 11th International Conference on Service Oriented Computing (ICSOC 2013) Ph.D. Symposium

In recent years, common-use devices has seen a leap transition in terms of equipped technology, introducing the so called “smart things” to the consumer market. This technological and societal revolution has underpinned the realization of the Internet of Things. To take full advantage of the opportunities arising from connectivity capabilities, smart things approached the application realm bringing the novel Web of Things vision to life. The Web, as a collaborative global space of information, is a critical asset to create value-added services. However, such a promising potential entails a number of challenges including data interoperability, data integration, information reuse and collaboration. This Ph.D. work focuses on a novel approach to take a smart thing to the Web, by representing it as graph of granular and individually addressable information called IDN-Document. IDN-Documents are simply structured web resources which can be aggregated, linked, reused and combined to build collaboration oriented, value-added services. IDN-Documents are managed by the InterDataNet middleware leveraging Linked Data and REST.

workshop
2013

Towards a Web of Sensors built with Linked Data and REST

AUTHORS Turchi, S., Bianchi, L., Paganelli, F., Pirri, F., and Giuli, D
7
WORKSHOP World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2013 IEEE 14th International Symposium and Workshops

The technological advances in hardware and software communication technologies are speeding up the path towards the actualization of the Internet of Things. Nonetheless, novel requirements are emerging for the effective and efficient usage of the huge amount of available sensor information and functional capabilities. Several approaches have been proposed for leveraging the Web to this purpose (i.e. Web of Things). In this work, we propose an information-centric approach to enable a Web of Sensors. We combine the principles of Linked Data and Representational State Transfer (REST) architectural style to represent sensors as graphs of URI-addressable information nodes, which can be easily combined and reused for developing novel applications and creating software-based sensors (Virtual Sensors). Our approach relies on the adoption of a web-oriented middleware and information model, called InterDataNet.

journal
2013

An information-centric and REST-based approach for EPC Information Services

AUTHORS Paganelli, F., Turchi, S., Bianchi, L., Ciofi, L., Pettenati, M. C., Pirri, F., and Giuli, D
6
JOURNAL Journal of Communications Software and Systems

Radio Frequency Identification (RFID) techniques are considered relevant building blocks for the Internet of Things. The interoperability across different RFID software and hardware infrastructures is a key requirement for achieving effective and wide-scale Internet of Thing deployments. The EPC Information Service (EPCIS) is a set of standard specifications for sharing RFID-related data (i.e., EPC events) both within and across enterprises. Although the EPCIS specifies a set of HTTP and Web Service interfaces for querying and adding EPC events, interoperability and easiness of use is hindered by the fact that client applications should be aware of the repositories that are authoritative for one or more given queries and links among related events are not explicitly represented in response messages. In this paper we argue that, by leveraging emerging REST and Linked Data paradigms, EPC events can be handled as a graph of globally-addressable information resources that can be navigated, queried, and aggregated through a uniform interface and seamlessly across organization domains. To validate this approach, we have developed a prototype that exposes the EPCIS interfaces as a set of REST APIs. The prototype implementation exploits the information modeling and management capabilities provided by a framework, called InterDataNet (IDN), that we conceived and developed to ease the realization of the Web of Data and Linked Data applications.

conference
2012

Designing EPCIS through linked data and REST principles

AUTHORS Turchi, S., Ciofi, L., Paganelli, F., Pirri, F., & Giuli, D.
5
CONFERENCE Software, Telecommunications and Computer Networks (SoftCOM), 2012 20th International Conference

Architecting a scalable identity fabric is one of the most challenging directions of the cloud computing landscape. Providing contribution in this direction would allow exploiting the e-profile as a basic transversal service towards the Identity as a Service (IdaaS) paradigm. In this paper we describe a content-centric security enabling mechanism allowing identity and profile management to be designed and implemented according to an IaaS (Infrastructure as a Service) approach. The approach presented is based primarily on authentication-based confidentiality. The security enabling content-centric approach relies on two core concepts: 1) the data/information fragment playing an active role to security determination 2) a distributed and layered access control system integrating RBAC and ABAC together. The security system is built on the side of the InterDataNet (IDN) framework, which provides infrastructural support to data aggregation and reuse in human collaboration around documents.

conference
2012

Telematics integrated system to perform drugs prescription and administration reducing adverse drug events

AUTHORS Iadanza, E., Pettenati, M. C., Bianchi, L., Turchi, S., Ciofi, L., Pirri, F., and Giuli, D.
4
CONFERENCE In Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE

Architecting a scalable identity fabric is one of the most challenging directions of the cloud computing landscape. Providing contribution in this direction would allow exploiting the e-profile as a basic transversal service towards the Identity as a Service (IdaaS) paradigm. In this paper we describe a content-centric security enabling mechanism allowing identity and profile management to be designed and implemented according to an IaaS (Infrastructure as a Service) approach. The approach presented is based primarily on authentication-based confidentiality. The security enabling content-centric approach relies on two core concepts: 1) the data/information fragment playing an active role to security determination 2) a distributed and layered access control system integrating RBAC and ABAC together. The security system is built on the side of the InterDataNet (IDN) framework, which provides infrastructural support to data aggregation and reuse in human collaboration around documents.

conference
2011

Content-centric approach for a secure and trusted e-profile management

AUTHORS Pettenati, M.C., Ciofi, L., Turchi, S., Pirri, F.and Giuli, D
3
CONFERENCE eChallenges e-2011 Conference and Exhibition

Architecting a scalable identity fabric is one of the most challenging directions of the cloud computing landscape. Providing contribution in this direction would allow exploiting the e-profile as a basic transversal service towards the Identity as a Service (IdaaS) paradigm. In this paper we describe a content-centric security enabling mechanism allowing identity and profile management to be designed and implemented according to an IaaS (Infrastructure as a Service) approach. The approach presented is based primarily on authentication-based confidentiality. The security enabling content-centric approach relies on two core concepts: 1) the data/information fragment playing an active role to security determination 2) a distributed and layered access control system integrating RBAC and ABAC together. The security system is built on the side of the InterDataNet (IDN) framework, which provides infrastructural support to data aggregation and reuse in human collaboration around documents.

conference
2011

Trusted Data Reuse in Residence Certificate Requests Between Public Officers and Municipality Employees

AUTHORS Pirri, F., Pettenati, M.C., Ciofi, L. Billero, R. Turchi, S.
2
CONFERENCE MeTTeG 2011, 5th International Conference on Methodologies, Technologies and Tools enabling e-Governmen

Distributed data interoperability and their efficient reuse is a key asset in enabling better back-office service integration in e-Government scenarios so as to allow a more efficient services provision at a front-office level. In this paper we address the problem of improving the effectiveness and efficiency of a telematic solution allowing an authorized public officer to obtain updated citizens’ residence certificates from the Municipality office. The presented application is built on top of the InterDataNet architecture allowing users to collaborate aggregating distributed data from the Web. In InterDataNet each data unit has an owner responsible entitled of its management. Each authorized user will (re)use data directly from its origin without duplicating the data locally. This works demonstrated the technical viability of this service solution through the realization of a Proof of Concept and raised the interests of the involved parties allowing seting up for its operational prototyping. The solution approach described in this work generalize to other Public Administration scenarios in which distributed actors need to collaborate on distributed data organized into structured documents. The InterDataNet infrastructural solution handling collaboration and trust issues related to data and documents reuse can therefore serve other application scenarios.

workshop
2010

Implementing fingercode-based identity matching in the encrypted domain

AUTHORS Bianchi, T., Turchi, S., Piva, A., Labati, R. D., Piuri, V., Scotti, F
1
WORKSHOP Biometric Measurements and Systems for Security and Medical Applications (BIOMS), 2010 IEEE Workshop

In this paper, we address the problem of FingerCode-based identity matching using encrypted templates. Instead of the classical approach of combining secure signal processing (SSP) tools to mimic the behavior of some wellknown identity matching algorithm, we will investigate the possibility of using a SSP-friendly biometric implementation, i.e., an implementation based on SSP tools as simple as possible. We will propose two alternative strategies for reducing the size of the FingerCode templates, in order to make them compatible with existing SSP solution. Experimental results shows that feature size reduction has a very limited impact on FingerCode performance, demonstrating that encrypted domain identity matching can be implemented without sacrificing biometric performance.

 
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