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University of Pisa
(55 results)-
White Papers
Query-Log Mining for Detecting Polysemy and Spam
May 14, 2008, 12:00am PDT
Through their interaction with search engines, users provide implicit feedback that can be used to extract useful knowledge and improve the quality of the search process. This feedback is encoded...
Provided by University of Pisa
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White Papers
Energy Conservation in Wireless Sensor Networks: A Survey
July 5, 2008, 12:00am PDT
In the last years, Wireless Sensor Networks (WSNs) have gained increasing attention from both the research community and actual users. As sensor nodes are generally battery-powered devices, the...
Provided by University of Pisa
-
Whitepapers
A Hybrid and Flexible Discovery Algorithm for Wireless Sensor Networks With Mobile Elements
April 16, 2012, 12:00am PDT
In sparse wireless sensor networks, data collection is carried out through specialized mobile nodes that visit sensor nodes, gather data, and transport them to the sink node. Since visit times are...
Provided by University of Pisa
-
White Papers
VirtuaLinux Design Principles
July 21, 2010, 12:00am PDT
VirtuaLinux is a Linux meta-distribution that allows the creation, deployment and administration of both physical and virtualized clusters with no single point of failure. They are avoided by...
Provided by University of Pisa
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White Papers
CC-Pi: A Constraint-Based Language for Specifying Service Level Agreements
June 29, 2007, 12:00am PDT
Service Level Agreements (SLA) are a key issue in Service Oriented Computing. SLA contracts specify client requirements and service guarantees, with emphasis on Quality of Service (Cost,...
Provided by University of Pisa
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White Papers
Security Issues in Service Composition
January 1, 2011, 12:00am PST
The authors use a distributed, enriched ë-calculus for describing networks of services. Both services and the clients can protect themselves, by imposing security constraints on each other's...
Provided by University of Pisa
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White Papers
Network Dynamics in Regional Clusters: A New Perspective From an Emerging Economy
January 13, 2011, 12:00am PST
Regional clusters are spatial agglomerations of firms operating in the same or connected industries, which enable innovation and economic performance for firms. A wealth of empirical literature...
Provided by University of Pisa
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White Papers
Neoclassical Economic Growth And Lifetime Welfare In A Simple OLG Model With Unions
May 12, 2008, 12:00am PDT
The authors analyse the effects of the introduction of a unionised labour market in a simple Diamond's OLG framework. Interesting findings, so far escaped closer scrutiny, emerge. Under some...
Provided by University of Pisa
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White Papers
The Impact Of Public Funding For Innovation On Firms~ R&D Investments: Do R&D Cooperation And Appropriability Matter?
October 15, 2009, 12:00am PDT
This paper provides a theoretical and empirical framework to explore how public funding affects firms' R&D investments depending on their engagement in horizontal R&D co-operations and different...
Provided by University of Pisa
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White Papers
Labour Incentive Schemes In A Cournot Duopoly With Simple Institutional Constraints
September 1, 2010, 12:00am PDT
This paper studies equilibrium incentive contracts in a Cournot duopoly, in which institutional arrangements constrain firms to pay (risk-neutral) workers a given salary. In this context,...
Provided by University of Pisa
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White Papers
Innovative Activity, Substantive Uncertainty And The Theory Of The Firm
June 1, 2007, 12:00am PDT
The inability to predict the future impact of innovations generates surprise and inconsistency of expectations, thereby giving rise to substantive uncertainty. In this paper the author...
Provided by University of Pisa
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White Papers
Endogenous Fertility, Endogenous Lifetime And Economic Growth: The Role Of Health And Child Policies
October 1, 2009, 12:00am PDT
In this paper the authors link endogenous fertility, endogenous longevity, economic growth and public policies - represented by public health investments and child policies - in a basic...
Provided by University of Pisa
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White Papers
From Wage Rigidities To Labour Market Rigidities: A Turning-Point In Explaining Equilibrium Unemployment?
November 1, 2009, 12:00am PDT
This paper offers a critical discussion of the concept of labour market rigidity relevant to explaining unemployment. Starting from Keynes's own view, the authors discuss how the concept of labour...
Provided by University of Pisa
-
White Papers
Using Clustering and Blade Clusters in the TeraByte Task
January 1, 2011, 12:00am PST
Web search engines exploit conjunctive queries and special ranking criteria which differ from the disjunctive queries typically used for ad-hoc retrieval. The authors wanted to asses the...
Provided by University of Pisa
-
White Papers
Types and Effects for Secure Service Orchestration
January 1, 2011, 12:00am PST
A distributed calculus is proposed for describing networks of services. The authors model service interaction through a call-by-property invocation mechanism, by specifying the security...
Provided by University of Pisa
-
White Papers
Right-to-manage Unions Endogenous Growth And Welfare
May 8, 2009, 12:00am PDT
Using the basic overlapping generations one-sector model of endogenous growth the authors show that unionisation of labour markets may be growth-enhancing with respect to the standard competitive...
Provided by University of Pisa
-
White Papers
From The Malthusian To The Modern Growth Regime In An OLG Model With Unions
October 17, 2007, 12:00am PDT
The passage from the Malthusian Regime to the Modern Regime has been theoretically investigated only in recent times and the understanding of this process is still incomplete. This paper develops...
Provided by University of Pisa
-
White Papers
Modeling Dynamic Software Architectures Using Typed Graph Grammars
November 22, 2007, 12:00am PST
Several recent research efforts have focused on the dynamic aspects of software architectures providing suitable models and techniques for handling the run-time modification of the structure of a...
Provided by University of Pisa
-
Whitepapers
Wireless Sensing Based on RFID and Capacitive Technologies for Safety in Marble Industry Process Control
October 19, 2012, 12:00am PDT
This paper presents wireless sensing systems to increase the safety and robustness in industrial process control, particularly in industrial machines for marble slab working. The experimented...
Provided by University of Pisa
-
Whitepapers
Efficient Mobile Communication Solutions for Remote Data Acquisition, Supervisory and Control Systems
July 1, 2008, 12:00am PDT
Wireless technologies (mobile communications or other radiofrequency transmission methods) represent reliable and efficient solutions for remote data acquisition, supervisory and control systems....
Provided by University of Pisa
-
White Papers
Reliability and Energy Efficiency in Multi-Hop IEEE 802.15.4/ZigBee Wireless Sensor Networks
April 9, 2010, 12:00am PDT
Wireless Sensor Networks (WSNs) are a very appealing solution for many practical applications. Recently, WSNs have also been deployed in industrial scenarios, even for critical applications. Two...
Provided by University of Pisa
-
White Papers
A Comprehensive Analysis of the MAC Unreliability Problem in IEEE 802.15.4 Wireless Sensor Networks
October 4, 2010, 12:00am PDT
Wireless Sensor Networks (WSNs) represent a very promising solution in the field of wireless technologies for industrial applications. However, for a credible deployment of WSNs in an industrial...
Provided by University of Pisa
-
White Papers
Reliable and Energy-Efficient Data Collection in Sparse Sensor Networks With Mobile Elements
June 16, 2009, 12:00am PDT
Sparse Wireless Sensor Networks (WSNs) are emerging as an effective solution for a wide range of applications, especially for environmental monitoring. In many scenarios, a moderate number of...
Provided by University of Pisa
-
White Papers
Design and Performance Evaluation of a Transport Protocol for Ad Hoc Networks (TPA)
April 3, 2008, 12:00am PDT
Providing efficient transport services over multi-hop ad hoc networks is a fundamental building block for this wireless technology. The typical approach is modifying TCP to fix one (or a few of)...
Provided by University of Pisa
-
White Papers
Multidomain Layer 1 Infrastructure Virtualization as a Future Internet Services-Enabling Paradigm
December 1, 2010, 12:00am PST
NGNs are being envisioned to circumvent the ossification of current Internet and leverage advanced and profitable Future Internet services. It is still unclear how this will be realized, but...
Provided by University of Pisa
-
White Papers
A New Statistical Approach to Network Anomaly Detection
November 29, 2010, 12:00am PST
In the last few years, the number and impact of security attacks over the Internet have been continuously increasing. To face this issue, the use of Intrusion Detection Systems (IDSs) has emerged...
Provided by University of Pisa
-
White Papers
Safer in the Clouds
October 27, 2010, 12:00am PDT
In the old times, people used to exploit the bakery's oven for their home-made bread. Similarly, people utilised the public mill to obtain flour from their wheat. In both cases, people did not own...
Provided by University of Pisa
-
White Papers
Extension and Application of the Network Utilization Characteristic Metric to IEEE 802.11e
August 7, 2007, 12:00am PDT
In this paper, the authors describe a time-based admission control scheme for Multimedia over IP services in wireless LANs based on the IEEE 802.11e standard. They build on an existing work where...
Provided by University of Pisa
-
White Papers
Using AMC and HARQ to Optimize System Capacity and Application Delays in WiMAX Networks
May 1, 2010, 12:00am PDT
The IEEE 802.16 technology (WiMAX) is a promising alternative to 3G or wireless LAN for providing last-mile connectivity by radio link due to its large coverage area, low cost of deployment and...
Provided by University of Pisa
-
White Papers
Measuring Data and VoIP Traffic in WiMAX Networks
April 1, 2010, 12:00am PDT
Due to its large coverage area, low cost of deployment and high speed data rates, WiMAX is a promising technology for providing wireless last-mile connectivity. Physical and MAC layer of this...
Provided by University of Pisa
-
White Papers
Adaptive Subframe Allocation in WiMAX Networks
August 10, 2010, 12:00am PDT
Recently, a promising technology called WiMAX is providing wireless last-mile connectivity due to its high speed data rates, low cost of deployment, and large coverage area. However, capacity...
Provided by University of Pisa
-
White Papers
Reliable Data Delivery in Sparse WSNs With Multiple Mobile Sinks: An Experimental Analysis
April 1, 2011, 12:00am PDT
Urban sensing is emerging as a significant Wireless Sensor Networks (WSNs) application. In such a scenario, static sensors are sparsely deployed in a urban area to collect environmental...
Provided by University of Pisa
-
White Papers
Performance Evaluation of Power Management for Best Effort Applications in IEEE 802.16 Networks
January 22, 2008, 12:00am PST
Reduced energy consumption is a crucial aspect of mobile Broadband Wireless Access (BWA) networks, which are expected to be populated by battery-operated devices, like mobile phones and palmtops....
Provided by University of Pisa
-
White Papers
An Efficient Cross Layer Scheduler for Multimedia Traffic in Wireless Local Area Networks With IEEE 802.11e HCCA
October 8, 2007, 12:00am PDT
This paper proposes a scheduling algorithm, namely Wireless Timed Token Protocol (WTTP), for the Hybrid Coordination Function (HCF) Controlled Channel Access (HCCA) in IEEE 802.11e. WTTP provides...
Provided by University of Pisa
-
White Papers
End-to-End Bandwidth Reservation in IEEE 802.16 Mesh Networks
May 31, 2007, 12:00am PDT
IEEE 802.16 mesh does not include support to traffic flows with strict Quality of Service requirements. In this paper, the authors propose an End-to-end Bandwidth Reservation Protocol (EBRP) in...
Provided by University of Pisa
-
White Papers
Scheduling and Dynamic Relocation for IEEE 802.11s Mesh Deterministic Access
April 3, 2008, 12:00am PDT
Deployment of Wireless Mesh Networks (WMNs) is becoming increasingly popular due to the low-impact and lowcost features of wireless devices. This is especially true for WMNs based on IEEE 802.11...
Provided by University of Pisa
-
White Papers
Set - Valued Consensus for Distributed Clock Synchronization
June 15, 2009, 12:00am PDT
This paper addresses the clock synchronization problem in a Wireless Sensor Network (WSN) and proposes a distributed solution that consists of a form of consensus, where agents are able to...
Provided by University of Pisa
-
White Papers
Data Centric Storage in ZigBee Wireless Sensor Networks
April 8, 2010, 12:00am PDT
Data Centric Storage is a recent paradigm that results more efficient than other storage techniques (such as local or external storage) in Wireless Sensor Networks (WSN). In this paper, the...
Provided by University of Pisa
-
White Papers
Distributed Erasure Coding in Data Centric Storage for Wireless Sensor Networks
May 23, 2009, 12:00am PDT
In-network storage of data in wireless sensor networks contributes to reduce the communications inside the network and to favor data aggregation. In this paper, the authors consider the use of...
Provided by University of Pisa
-
White Papers
Publish/subscribe in Wireless Sensor Networks Based on Data Centric Storage
June 16, 2009, 12:00am PDT
The rapid development of Wireless Sensor Networks (WSN) technologies gave rise to the need for abstraction mechanisms that can simplify the data management tasks. Under this respect, the...
Provided by University of Pisa
-
Whitepapers
Efficient Mobile Communication Solutions for Remote Data Acquisition, Supervisory and Control Systems
July 1, 2008, 12:00am PDT
Wireless technologies (mobile communications or other radiofrequency transmission methods) represent reliable and efficient solutions for remote data acquisition, supervisory and control systems....
Provided by University of Pisa
-
Whitepapers
Wireless Sensing Based on RFID and Capacitive Technologies for Safety in Marble Industry Process Control
October 19, 2012, 12:00am PDT
This paper presents wireless sensing systems to increase the safety and robustness in industrial process control, particularly in industrial machines for marble slab working. The experimented...
Provided by University of Pisa
-
Whitepapers
A Hybrid and Flexible Discovery Algorithm for Wireless Sensor Networks With Mobile Elements
April 16, 2012, 12:00am PDT
In sparse wireless sensor networks, data collection is carried out through specialized mobile nodes that visit sensor nodes, gather data, and transport them to the sink node. Since visit times are...
Provided by University of Pisa
-
White Papers
Decentralized Intrusion Detection for Secure Cooperative Multi - Agent Systems
August 1, 2007, 12:00am PDT
In this paper, the authors address the problem of detecting faulty behaviors of cooperative mobile agents. A novel decentralized and scalable architecture that can be adopted to realize a monitor...
Provided by University of Pisa
-
White Papers
On Experimentally Evaluating the Impact of Security on IEEE 802.15.4 Networks
May 18, 2011, 12:00am PDT
IEEE 802.15.4 addresses low-rate wireless personal area networks, enables low power devices, and includes a number of security provisions and options (the security sub-layer). Security competes...
Provided by University of Pisa
-
White Papers
Secure Cooperation of Autonomous Mobile Sensors Using an Underwater Acoustic Network
February 10, 2012, 12:00am PST
Methodologies and algorithms are presented for the secure cooperation of a team of autonomous mobile underwater sensors, connected through an acoustic communication network, within surveillance...
Provided by University of Pisa
-
White Papers
Uniform Obfuscation for Location Privacy
April 29, 2012, 12:00am PDT
As location-based services emerge, many people feel exposed to high privacy threats. Privacy protection is a major challenge for such applications. A broadly used approach is perturbation, which...
Provided by University of Pisa
-
White Papers
Mobile-Relay Forwarding in Opportunistic Networks
July 5, 2007, 12:00am PDT
Opportunistic networks are one of the most interesting extensions of the legacy Mobile Ad hoc NETworks (MANETs) concept. Legacy MANETs are composed by mobile nodes that collaboratively setup a...
Provided by University of Pisa
-
White Papers
Investigation of Scalable Video Delivery Using H.264 SVC on an LTE Network
September 12, 2011, 12:00am PDT
The combination of increased data rates in 4G cellular networks (such as LTE Advanced), dedicated multicast/broadcast services (e-MBMS) and the emergence of Scalable Video Coding standards (H.264...
Provided by University of Pisa
-
White Papers
Scalable Query Dissemination in XPeer
September 2, 2007, 12:00am PDT
This paper presents XPeer, a data sharing system for massively distributed XML data. XPeer allows users to publish and query heterogeneous information without any significant administration...
Provided by University of Pisa
-
White Papers
Linear Time Membership for a Class of XML Types With Interleaving and Counting
December 14, 2007, 12:00am PST
Regular Expressions (REs) form the basis of most XML type languages, such as DTDs, XML Schema types, and XDuce types (Thompson et al. 2004; Hosoya and Pierce 2003). In this context, the...
Provided by University of Pisa
-
White Papers
Programming a Sensor Network in a Layered Middleware Architecture
December 27, 2010, 12:00am PST
Wireless Sensor Networks (WSNs) have become a mature technology aimed at performing environmental monitoring and data collection. Nonetheless, harnessing the power of a WSN presents a number of...
Provided by University of Pisa
-
White Papers
Q-NiGHT: Adding QoS to Data Centric Storage in Non-Uniform Sensor Networks
July 3, 2007, 12:00am PDT
Storage of sensed data in wireless sensor networks is essential when the sink node is unavailable due to failure and/or disconnections, but it can also provide efficient access to sensed data to...
Provided by University of Pisa
-
White Papers
A Secure Middleware for Wireless Sensor Networks
July 25, 2008, 12:00am PDT
SMEPP Light is a middleware for Wireless Sensor Networks (WSNs) based on mote-class sensors. It is derived from the specification developed under the framework of the SMEPP project, to deal with...
Provided by University of Pisa
-
White Papers
Information Assurance in Critical Infrastructures Via Wireless Sensor Networks
June 3, 2008, 12:00am PDT
Information assurance in critical infrastructure is an issue that has been addressed generally focusing on real-time or quasi real-time monitoring of the critical infrastructure; so that action...
Provided by University of Pisa
-
White Papers
Publish/subscribe in Wireless Sensor Networks Based on Data Centric Storage
June 16, 2009, 12:00am PDT
The rapid development of Wireless Sensor Networks (WSN) technologies gave rise to the need for abstraction mechanisms that can simplify the data management tasks. Under this respect, the...
Provided by University of Pisa
-
White Papers
Distributed Erasure Coding in Data Centric Storage for Wireless Sensor Networks
May 23, 2009, 12:00am PDT
In-network storage of data in wireless sensor networks contributes to reduce the communications inside the network and to favor data aggregation. In this paper, the authors consider the use of...
Provided by University of Pisa
-
White Papers
Data Centric Storage in ZigBee Wireless Sensor Networks
April 8, 2010, 12:00am PDT
Data Centric Storage is a recent paradigm that results more efficient than other storage techniques (such as local or external storage) in Wireless Sensor Networks (WSN). In this paper, the...
Provided by University of Pisa
-
White Papers
Set - Valued Consensus for Distributed Clock Synchronization
June 15, 2009, 12:00am PDT
This paper addresses the clock synchronization problem in a Wireless Sensor Network (WSN) and proposes a distributed solution that consists of a form of consensus, where agents are able to...
Provided by University of Pisa
-
White Papers
Scheduling and Dynamic Relocation for IEEE 802.11s Mesh Deterministic Access
April 3, 2008, 12:00am PDT
Deployment of Wireless Mesh Networks (WMNs) is becoming increasingly popular due to the low-impact and lowcost features of wireless devices. This is especially true for WMNs based on IEEE 802.11...
Provided by University of Pisa
-
White Papers
End-to-End Bandwidth Reservation in IEEE 802.16 Mesh Networks
May 31, 2007, 12:00am PDT
IEEE 802.16 mesh does not include support to traffic flows with strict Quality of Service requirements. In this paper, the authors propose an End-to-end Bandwidth Reservation Protocol (EBRP) in...
Provided by University of Pisa
-
White Papers
An Efficient Cross Layer Scheduler for Multimedia Traffic in Wireless Local Area Networks With IEEE 802.11e HCCA
October 8, 2007, 12:00am PDT
This paper proposes a scheduling algorithm, namely Wireless Timed Token Protocol (WTTP), for the Hybrid Coordination Function (HCF) Controlled Channel Access (HCCA) in IEEE 802.11e. WTTP provides...
Provided by University of Pisa
-
White Papers
Performance Evaluation of Power Management for Best Effort Applications in IEEE 802.16 Networks
January 22, 2008, 12:00am PST
Reduced energy consumption is a crucial aspect of mobile Broadband Wireless Access (BWA) networks, which are expected to be populated by battery-operated devices, like mobile phones and palmtops....
Provided by University of Pisa
-
White Papers
Reliable Data Delivery in Sparse WSNs With Multiple Mobile Sinks: An Experimental Analysis
April 1, 2011, 12:00am PDT
Urban sensing is emerging as a significant Wireless Sensor Networks (WSNs) application. In such a scenario, static sensors are sparsely deployed in a urban area to collect environmental...
Provided by University of Pisa
-
White Papers
Adaptive Subframe Allocation in WiMAX Networks
August 10, 2010, 12:00am PDT
Recently, a promising technology called WiMAX is providing wireless last-mile connectivity due to its high speed data rates, low cost of deployment, and large coverage area. However, capacity...
Provided by University of Pisa
-
White Papers
Measuring Data and VoIP Traffic in WiMAX Networks
April 1, 2010, 12:00am PDT
Due to its large coverage area, low cost of deployment and high speed data rates, WiMAX is a promising technology for providing wireless last-mile connectivity. Physical and MAC layer of this...
Provided by University of Pisa
-
White Papers
Using AMC and HARQ to Optimize System Capacity and Application Delays in WiMAX Networks
May 1, 2010, 12:00am PDT
The IEEE 802.16 technology (WiMAX) is a promising alternative to 3G or wireless LAN for providing last-mile connectivity by radio link due to its large coverage area, low cost of deployment and...
Provided by University of Pisa
-
White Papers
Extension and Application of the Network Utilization Characteristic Metric to IEEE 802.11e
August 7, 2007, 12:00am PDT
In this paper, the authors describe a time-based admission control scheme for Multimedia over IP services in wireless LANs based on the IEEE 802.11e standard. They build on an existing work where...
Provided by University of Pisa
-
White Papers
Safer in the Clouds
October 27, 2010, 12:00am PDT
In the old times, people used to exploit the bakery's oven for their home-made bread. Similarly, people utilised the public mill to obtain flour from their wheat. In both cases, people did not own...
Provided by University of Pisa
-
White Papers
A New Statistical Approach to Network Anomaly Detection
November 29, 2010, 12:00am PST
In the last few years, the number and impact of security attacks over the Internet have been continuously increasing. To face this issue, the use of Intrusion Detection Systems (IDSs) has emerged...
Provided by University of Pisa
-
White Papers
Multidomain Layer 1 Infrastructure Virtualization as a Future Internet Services-Enabling Paradigm
December 1, 2010, 12:00am PST
NGNs are being envisioned to circumvent the ossification of current Internet and leverage advanced and profitable Future Internet services. It is still unclear how this will be realized, but...
Provided by University of Pisa
-
White Papers
Design and Performance Evaluation of a Transport Protocol for Ad Hoc Networks (TPA)
April 3, 2008, 12:00am PDT
Providing efficient transport services over multi-hop ad hoc networks is a fundamental building block for this wireless technology. The typical approach is modifying TCP to fix one (or a few of)...
Provided by University of Pisa
-
White Papers
Reliable and Energy-Efficient Data Collection in Sparse Sensor Networks With Mobile Elements
June 16, 2009, 12:00am PDT
Sparse Wireless Sensor Networks (WSNs) are emerging as an effective solution for a wide range of applications, especially for environmental monitoring. In many scenarios, a moderate number of...
Provided by University of Pisa
-
White Papers
A Comprehensive Analysis of the MAC Unreliability Problem in IEEE 802.15.4 Wireless Sensor Networks
October 4, 2010, 12:00am PDT
Wireless Sensor Networks (WSNs) represent a very promising solution in the field of wireless technologies for industrial applications. However, for a credible deployment of WSNs in an industrial...
Provided by University of Pisa
-
White Papers
Reliability and Energy Efficiency in Multi-Hop IEEE 802.15.4/ZigBee Wireless Sensor Networks
April 9, 2010, 12:00am PDT
Wireless Sensor Networks (WSNs) are a very appealing solution for many practical applications. Recently, WSNs have also been deployed in industrial scenarios, even for critical applications. Two...
Provided by University of Pisa
-
White Papers
Modeling Dynamic Software Architectures Using Typed Graph Grammars
November 22, 2007, 12:00am PST
Several recent research efforts have focused on the dynamic aspects of software architectures providing suitable models and techniques for handling the run-time modification of the structure of a...
Provided by University of Pisa
-
White Papers
From The Malthusian To The Modern Growth Regime In An OLG Model With Unions
October 17, 2007, 12:00am PDT
The passage from the Malthusian Regime to the Modern Regime has been theoretically investigated only in recent times and the understanding of this process is still incomplete. This paper develops...
Provided by University of Pisa
-
White Papers
Right-to-manage Unions Endogenous Growth And Welfare
May 8, 2009, 12:00am PDT
Using the basic overlapping generations one-sector model of endogenous growth the authors show that unionisation of labour markets may be growth-enhancing with respect to the standard competitive...
Provided by University of Pisa
-
White Papers
Types and Effects for Secure Service Orchestration
January 1, 2011, 12:00am PST
A distributed calculus is proposed for describing networks of services. The authors model service interaction through a call-by-property invocation mechanism, by specifying the security...
Provided by University of Pisa
-
White Papers
Using Clustering and Blade Clusters in the TeraByte Task
January 1, 2011, 12:00am PST
Web search engines exploit conjunctive queries and special ranking criteria which differ from the disjunctive queries typically used for ad-hoc retrieval. The authors wanted to asses the...
Provided by University of Pisa
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