University of Southampton

Displaying 1-40 of 169 results

  • White Papers // Mar 2015

    RDF-Hunter: Automatically Crowdsourcing the Execution of Queries Against RDF Data Sets

    In the last years, a large number of RDF data sets have become available on the web. However, due to the semi-structured nature of RDF data, missing values affect answer completeness of queries that are posed against this data. In this paper, the authors propose RDF-Hunter, a novel hybrid query...

    Provided By University of Southampton

  • White Papers // Jun 2014

    Floe: A Continuous Dataflow Framework for Dynamic Cloud Applications

    Applications in cyber-physical systems are increasingly coupled with online instruments to perform long-running, continuous data processing. Such \"Always on\" dataflow applications are dynamic, where they need to change the applications logic and performance at runtime, in response to external operational needs. Floe is a continuous dataflow framework that is designed...

    Provided By University of Southampton

  • White Papers // May 2014

    Caching Eliminates the Wireless Bottleneck in Video-Aware Wireless Networks

    Cellular data traffic almost doubles every year, greatly straining network capacity. The main driver for this development is wireless video. Traditional methods for capacity increase (like using more spectrum and increasing base station density) are very costly, and do not exploit the unique features of video, in particular a high...

    Provided By University of Southampton

  • White Papers // Feb 2014

    A Game Theoretic Framework of SLA-Based Resource Allocation for Competitive Cloud Service Providers

    Cloud computing is an emerging paradigm that allows the on-demand delivering of software, hardware, and data as services. It has attracted a lot of attention recently due to the increasing demand for high performance computing and storage. Resource allocation is one of the most important challenges in the cloud computing...

    Provided By University of Southampton

  • White Papers // Feb 2014

    Order Optimal Coded Delivery and Caching: Multiple Groupcast Index Coding

    The capacity of caching networks has received considerable attention in the past few years. A particularly studied setting is the case of a single server (e.g., a base station) and multiple users, each of which caches segments of files in a finite library. Each user requests one (whole) file in...

    Provided By University of Southampton

  • White Papers // Feb 2014

    Routing and Staffing when Servers are Strategic

    Traditionally, research focusing on the design of routing and staffing policies for service systems has modeled servers as having fixed (possibly heterogeneous) service rates. However, service systems are generally staffed by people. Furthermore, people respond to workload incentives; that is, how hard a person works can depend both on how...

    Provided By University of Southampton

  • White Papers // Feb 2014

    Balancing On-Chip Network Latency in Multi-Application Mapping for Chip-Multiprocessors

    As the number of cores continues to grow in Chip Multi-Processors (CMPs), application-to-core mapping algorithms that leverage the non-uniform on-chip resource access time have been receiving increasing attention. However, existing mapping methods for reducing overall packet latency can-not meet the requirement of balanced on-chip latency when multiple applications are present....

    Provided By University of Southampton

  • White Papers // Jan 2014

    Energy-Efficient Median Filter on FPGA

    Median filters are a popular method for noise extraction, with much work done in the community to achieve high throughput and low hardware cost. In contrast, energy efficiency remains an untapped area for improvement though it has become a topic of increasing interest. The authors deduce memory to be the...

    Provided By University of Southampton

  • White Papers // Jan 2014

    Energy-Efficient Large-Scale Matrix Multiplication on FPGAs

    Energy efficiency has emerged as one of the key performance metrics in computing. In this paper, the authors present an energy efficient design for large-scale matrix multiplication. As a baseline architecture, they use a highly optimized on-chip matrix multiplication architecture extended to support large matrices using external memory. Based on...

    Provided By University of Southampton

  • White Papers // Dec 2013

    On Security Monitoring in SDNs A Strategic Outlook

    The recently proposed Software-Defined Networking (SDN) paradigm aims at enabling rapid innovations and reducing operational cost in the network equipments with the separation of the control and data plane. The network switches support the simple forwarding functions while the complex control logics are implemented in a logically centralized controller using...

    Provided By University of Southampton

  • White Papers // Oct 2013

    Energy-Efficient Architecture for Stride Permutation on Streaming Data

    Stride permutation is widely used in various digital signal processing algorithms when implementing on FPGAs. Permuting a long data sequence through hardware wiring leads to high area consumption and routing complexity. A more scalable approach is to build a hardware structure to permute streamed data inputs. In this paper, the...

    Provided By University of Southampton

  • White Papers // Sep 2013

    Enabling High Performance Computing in Cloud Infrastructure using Virtualized GPUs

    With the advent of virtualization and Infrastructure-as-a-Service (IaaS), the broader scientific computing community is considering the use of clouds for their technical computing needs. This is due to the relative scalability, ease of use, advanced user environment customization abilities clouds provide, as well as many novel computing paradigms available for...

    Provided By University of Southampton

  • White Papers // Sep 2013

    Scalable Many-Field Packet Classification on Multi-Core Processors

    Packet classification matches a packet header against the predefined rules in a rule set; it is a kernel function that has been studied for decades. A recent trend in packet classification is to match a large number of packet header fields. For example, the flow table lookup in Software Defined...

    Provided By University of Southampton

  • White Papers // Sep 2013

    An Electricity Trade Model for Microgrid Communities in Smart Grid

    Distributed microgrid network is the major trend of future smart grid, which contains various kinds of renewable power generation centers and a small group of energy users. In the distributed power system, each microgrid acts as a \"Prosumer\" (producer and consumer) and maximizes its own social welfare. In addition, different...

    Provided By University of Southampton

  • White Papers // Sep 2013

    Towards Hybrid Online On-Demand Querying of Realtime Data with Stateful Complex Event Processing

    Emerging Big Data applications in areas like ecommerce and energy industry require both online and on-demand queries to be performed over vast and fast data arriving as streams. These present novel challenges to Big Data management systems. Complex Event Processing (CEP) is recognized as a high performance online query scheme...

    Provided By University of Southampton

  • White Papers // Sep 2013

    Improvement and Analysis of Encryption and Decryption Performance in Cloud Document

    Cloud computing is the hot topic in recent years, and the cloud-based collaborative service is the emerging service. No matter where the users are or which computers the users use, it enables the cloud users to place their data into the cloud. As long as it connects to the Internet,...

    Provided By University of Southampton

  • White Papers // Aug 2013

    A Bayesian Game Formulation of Power Dissipation and Response Time Minimization in a Mobile Cloud Computing System

    The rapidly developing cloud computing and virtualization techniques provide mobile devices with battery energy saving opportunities by allowing them to offload computation and execute applications remotely. A mobile device should judiciously determine whether to offload computation and which portion of application should be offloaded to the cloud. This paper considers...

    Provided By University of Southampton

  • White Papers // Aug 2013

    An Energy and Deadline Aware Resource Provisioning, Scheduling and Optimization Framework for Cloud Systems

    Cloud computing has attracted significant attention due to the increasing demand for low-cost, high performance, and energy-efficient computing. In this large-scale, heterogeneous, multi-user environment of a cloud system, profit maximization for the Cloud Service Provider (CSP) is a key objective. In this paper, the problem of global optimization of the...

    Provided By University of Southampton

  • White Papers // Aug 2013

    Hierarchical Virtual Machine Consolidation in a Cloud Computing System

    Improving the energy efficiency of cloud computing systems has become an important issue because the electric energy bill for 24/7 operation of these systems can be quite large. The focus of this paper is on the Virtual Machine (VM) consolidation in a cloud computing system as a way of lowering...

    Provided By University of Southampton

  • White Papers // Aug 2013

    Evaluating Energy Efficiency of Floating Point Matrix Multiplication on FPGAs

    State-of-the-art FPGAs offer high operating frequency, unprecedented logic density and a host of other features. As FPGAs are programmed specifically for the problem to be solved, they can achieve higher performance with lower power consumption than general-purpose processors. Therefore, FPGA is a promising implementation technology for computationally intensive applications such...

    Provided By University of Southampton

  • White Papers // Jul 2013

    Introducing PRECIP: An API for Managing Repeatable Experiments in the Cloud

    Cloud computing with its on-demand access to resources has emerged as a tool used by researchers from a wide range of domains to run computer-based experiments. In this paper the authors introduce a flexible experiment management API, written in Python, that simplifies and formalizes the execution of scientific experiments on...

    Provided By University of Southampton

  • White Papers // Jul 2013

    100+ Gbps IPv6 Packet Forwarding on Multi-Core Platforms

    The migration from IPv4 to IPv6 addressing is gradually taking place with the exhaustion of IPv4 address space. This requires the network infrastructure to have the capability to process and route IPv6 packets. However, with the increased complexity of the lookup operation and storage requirements, performing IPv6 lookup at wire-speed...

    Provided By University of Southampton

  • White Papers // Jul 2013

    Profit-Maximizing Resource Allocation for Multi-tier Cloud Computing Systems under Service Level Agreements

    Pervasive use of cloud computing and resulting rise in the number of hosting datacenters (which provide platform or software services to clients who do not have the means to set up and operate their own facilities) have brought forth many challenges including energy cost, peak power dissipation, cooling, carbon emission,...

    Provided By University of Southampton

  • White Papers // Jun 2013

    Towards Proximity-Aware Application Deployment in Geodistributed Clouds

    In this paper, the authors propose a proximity-aware cloud service selection system to help application providers to deploy their applications in the cloud. Cloud platforms deploy multiple data centers geographically distributed around the world. They argue that proximity plays a very important role to improve the application performance when deploying...

    Provided By University of Southampton

  • White Papers // Jun 2013

    Rethinking Data Management for Big Data Scientific Workflows

    Scientific workflows consist of tasks that operate on input data to generate new data products that are used by subsequent tasks. Workflow management systems typically stage data to computational sites before invoking the necessary computations. In some cases data may be accessed using remote I/O. There are limitations with these...

    Provided By University of Southampton

  • White Papers // Jun 2013

    Multi-Core Implementation of Decomposition-Based Packet Classification Algorithms

    Multi-field packet classification is a network kernel function where packets are classified based on a set of predefined rules. Many algorithms and hardware architectures have been proposed to accelerate packet classification. Among them, decomposition-based classification approaches are of major interest to the research community because of the parallel search in...

    Provided By University of Southampton

  • White Papers // May 2013

    High Throughput Energy Efficient Multi-FFT Architecture on FPGAs

    To process high-rate streaming data, throughput is one of the key performance metrics for FFT design. However, high throughput FFT architectures consume large amount of power due to complex routing or excessive memory access. In this paper, the authors propose a Cooley-Turkey algorithm based high throughput energy-efficient multi-FFT architecture. In...

    Provided By University of Southampton

  • White Papers // May 2013

    Diversity Backpressure Scheduling and Routing with Mutual Information Accumulation in Wireless Ad-hoc Networks

    The authors suggest and analyze algorithms for routing in multi-hop wireless ad-hoc networks that exploit mutual information accumulation as the physical layer transmission scheme, and are capable of routing multiple packet streams (commodities) when only the average channel state information is present and that only locally. The proposed algorithms are...

    Provided By University of Southampton

  • White Papers // May 2013

    Cloud Security with Virtualized Defense and Reputation-based Trust Management

    Internet clouds work as service factories built around web-scale datacenters. The elastic cloud resources and huge datasets processed are subject to security breaches, privacy abuses, and copyright violations. Provisioned cloud resources on-demand is especially vulnerable to cyber attacks. The cloud platforms built by Google, IBM, and Amazon all reveal this...

    Provided By University of Southampton

  • White Papers // Apr 2013

    Structured Lattice Codes for Some Two-User Gaussian Networks With Cognition, Coordination and Two Hops

    The authors study a number of two-user interference networks with multiple-antenna transmitters/receivers (MIMO), transmitter side information in the form of linear combinations (over an appropriate finite-field) of the information messages, and two-hop relaying. They start with a Cognitive Interference Channel (CIC) where one of the transmitters (non-cognitive) has knowledge of...

    Provided By University of Southampton

  • White Papers // Apr 2013

    Event Recommendation in Social Networks with Linked Data Enablement

    In recent years, social networking services have gained phenomenal popularity. They allow the authors to explore the world and share their findings in a convenient way. Event is a critical component in social networks. A user can create, share or join different events in their social circle. In this paper,...

    Provided By University of Southampton

  • White Papers // Apr 2013

    Comparing FutureGrid, Amazon EC2, and Open Science Grid for Scientific Workflows

    Scientists have a number of computing infrastructures available to conduct their research, including grids and public or private clouds. This paper explores the use of these cyber-infrastructures to execute scientific workflows, an important class of scientific applications. It examines the benefits and drawbacks of cloud and grid systems using the...

    Provided By University of Southampton

  • White Papers // Mar 2013

    Complex Modeling and Analysis of Workplace Collaboration Data

    Complex networks arise everywhere. Online social networks are famous complex networks examples due to revolutionizing the way people interact on the web, and permitting in practice the study of interdisciplinary theories that arise from human activities, at both micro (i.e. individual) and macro (i.e. community) level. The vast scale (Big...

    Provided By University of Southampton

  • White Papers // Feb 2013

    Efficient MAC for Distributed Multiuser MIMO Systems

    A distributed multiuser MIMO system consists of several access points which are connected to coordinating servers and operate as a large multi-antenna access point. Thanks to joint decoding and precoding, all transmitted signal power is useful, rather than "Interference". The system has the potential to support constant rates as the...

    Provided By University of Southampton

  • White Papers // Feb 2013

    Optimal Throughput-Outage Trade-off in Wireless One-Hop Caching Networks

    The authors consider a wireless Device-To-Device (D2D) network where the nodes have cached information from a library of possible files. Inspired by the current trend in the standardization of the D2D mode for 4th Generation wireless networks, they restrict to one-hop communication: each node place a request to a file...

    Provided By University of Southampton

  • White Papers // Jan 2013

    Optimizations and Analysis of BSP Graph Processing Models on Public Clouds

    Large-scale graph analytics is a central tool in many fields, and exemplifies the size and complexity of Big Data applications. Recent distributed graph processing frameworks utilize the venerable Bulk Synchronous Parallel (BSP) model and promise scalability for large graph analytics. This has been made popular by Google's Pregel, which offers...

    Provided By University of Southampton

  • White Papers // Jan 2013

    Task Parallel Implementation of Belief Propagation in Factor Graphs

    Factor graphs have been increasingly used as probabilistic graphical models. Belief propagation is a prominent algorithm for inference in factor graphs. Due to the high complexity of inference, parallel techniques for belief propagation are needed. In this paper, the authors explore task parallelism for belief propagation in an acyclic factor...

    Provided By University of Southampton

  • White Papers // Jan 2013

    Application of the Many Sources Asymptotic in Downscaling Internet-Like Networks

    In the authors' earlier paper, they have presented two methods to scale down the topology of the Internet, while preserving important performance metrics. They have shown that the methods can be used to greatly simplify and expedite performance prediction. The key insight that they have leveraged is that only the...

    Provided By University of Southampton

  • White Papers // Jan 2013

    Knowledge Management in Enterprise Resource Planning Systems: Support for Financial Transactions

    Enterprise Resource Planning (ERP) system financial modules require that users be able to provide transaction information. Unfortunately, for a number of reasons users need support in the development of transactions. ERP system users have indicated a need for support for users responsible for generating financial entries. This paper presents a...

    Provided By University of Southampton

  • White Papers // Dec 2012

    The Application of Cloud Computing to Scientific Workflows: A Study of Cost and Performance

    The current model of transferring data from data centers to desktops for analysis will soon be rendered impractical by the accelerating growth in the volume of science data sets. Processing will instead often take place on high performance servers co-located with data. Evaluations of how new technologies such as cloud...

    Provided By University of Southampton

  • White Papers // Mar 2009

    Scalable High Throughput and Power Efficient IP-Lookup on FPGA

    Most high-speed Internet Protocol (IP) lookup implementations use tree traversal and pipelining. Due to the available on-chip memory and the number of I/O pins of Field Programmable Gate Arrays (FPGAs), state-of-the-art designs cannot support the current largest routing table (consisting of 257K prefixes in backbone routers). The authors propose a...

    Provided By University of Southampton

  • White Papers // Aug 2008

    Detecting Dirty Queries During Iterative Development of OWL Based Applications

    Incremental/iterative development is often considered to be the best approach to develop large scale information management applications. In an application using an ontology as a central component at design and/or runtime that is built using this approach, the ontology itself might be constantly modified to satisfy new and changing requirements....

    Provided By University of Southampton

  • White Papers // Aug 2008

    Parallel Exact Inference on the Cell Broadband Engine Processor

    The authors present the design and implementation of a parallel exact inference algorithm on the Cell Broadband Engine (Cell BE). Exact inference is a key problem in exploring probabilistic graphical models. In such a model, the computation complexity increases dramatically with the network structure and clique size. In this paper,...

    Provided By University of Southampton

  • White Papers // Jun 2008

    Scalable High-Throughput SRAM-Based Architecture for IP-Lookup Using FPGA

    Most high-speed Internet Protocol (IP) lookup implementations use tree traversal and pipelining. However, this approach results in inefficient memory utilization. Due to available on-chip memory and pin limitations of FPGAs, state-of-the-art designs on FPGAs cannot support large routing tables arising in backbone routers. Therefore, Ternary Content Addressable Memory (TCAM) is...

    Provided By University of Southampton

  • White Papers // Jul 2007

    A Memory-Balanced Linear Pipeline Architecture for Trie-Based IP Lookup

    Rapid growth in network link rates poses a strong demand on high speed IP lookup engines. Trie-based architectures are natural candidates for pipelined implementation to provide high throughput. However, simply mapping a trie level onto a pipeline stage results in unbalanced memory distribution over different stages. To address this problem,...

    Provided By University of Southampton

  • White Papers // Jun 2013

    Multi-Core Implementation of Decomposition-Based Packet Classification Algorithms

    Multi-field packet classification is a network kernel function where packets are classified based on a set of predefined rules. Many algorithms and hardware architectures have been proposed to accelerate packet classification. Among them, decomposition-based classification approaches are of major interest to the research community because of the parallel search in...

    Provided By University of Southampton

  • White Papers // Oct 2011

    Multi-Stream Regular Expression Matching on FPGA

    Regular Expression Matching (REM) is widely used by network community for deep packet inspection and network intrusion detection. Most of the existing REM solutions on FPGA address only single-stream matching. In many real-life scenarios, however, multiple data streams are often interleaved on a high-bandwidth input to be matched by a...

    Provided By University of Southampton

  • White Papers // Mar 2010

    Parallel Exact Inference on a CPU-GPGPU Heterogenous System

    Exact inference is a key problem in exploring probabilistic graphical models, where the computational complexity varies dramatically as the parameters of the graphical models changes. To achieve scalability over hundreds of threads remains a fundamental challenge. In this paper, the authors design an efficient scheduler hosted by the CPU to...

    Provided By University of Southampton

  • White Papers // Dec 2009

    Provenance Collection in Reservoir Management Workflow Environments

    There has been a recent push towards applying information technology principles, such as workflows, to bring greater efficiency to reservoir management tasks. These workflows are data intensive in nature, and the data is derived from heterogeneous data sources. This has placed an emphasis on the quality and reliability of data...

    Provided By University of Southampton

  • White Papers // Aug 2009

    Energy-Efficient Multi-Pipeline Architecture for Terabit Packet Classification

    Energy efficiency has become a critical concern in designing high speed packet classification engines for next generation routers. Although TCAM-based solutions can provide high throughput, they are not scalable with respect to power consumption. On the other hand, mapping decision-tree-based packet classification algorithms onto SRAM-based pipeline architectures becomes a promising...

    Provided By University of Southampton

  • White Papers // Aug 2009

    Reducing Dynamic Power Dissipation in Pipelined Forwarding Engines

    Power consumption has become a limiting factor in next-generation routers. IP forwarding engines dominate the overall power dissipation in a router. Although SRAM-based pipeline architectures have recently been developed as a promising alternative to power-hungry TCAM-based solutions for high-throughput IP forwarding, it remains a challenge to achieve low power. This...

    Provided By University of Southampton

  • White Papers // May 2009

    Scalable Packet Classification: Cutting or Merging?

    Multi-field packet classification is a fundamental function that enables routers to support a variety of network services. Most of the existing multi-field packet classification algorithms can be divided into two classes: cutting-based and merging-based solutions. However, neither of them is scalable with respect to memory requirement for all rule sets...

    Provided By University of Southampton

  • White Papers // Apr 2009

    A FPGA-Based Parallel Architecture for Scalable High-Speed Packet Classification

    Multi-field packet classification is a critical function that enables network routers to support a variety of applications such as firewall processing, Quality of Service (QoS) differentiation, traffic billing, and other value added services. Explosive growth of Internet traffic requires the future packet classifiers be implemented in hardware. However, most of...

    Provided By University of Southampton

  • White Papers // Apr 2009

    Memory-Efficient Pipelined Architecture for Large-Scale String Matching

    The authors propose a pipelined field-merge architecture for memory-efficient and high-throughput Large-Scale String Matching (LSSM). Their proposed architecture partitions the character input into several bit-field inputs of smaller widths. Each bit-field input is matched in a Partial State Machine (PSM) pipeline constructed from the respective bit-field patterns. The matching results...

    Provided By University of Southampton

  • White Papers // Aug 2012

    Robust Optimization of a Chip Multiprocessor's Performance Under Power and Thermal Constraints

    Power dissipation and die temperature have become key performance limiters in today's high-performance Chip Multi-Processors (CMPs.) Dynamic power management solutions have been proposed to manage resources in a CMP based on the measured power dissipation, performance, and die temperature of processing cores. In this paper, the authors develop a robust...

    Provided By University of Southampton

  • White Papers // Jan 2012

    Improving Scientific Workflow Performance using Policy Based Data Placement

    I/O intensive jobs such as stage-in, stage-out or data clean-up jobs account for significant time in execution of scientific workflows. Workflow managers typically add these data management operations as supporting jobs to computational tasks with scheduling emphasis on compute jobs only. The authors present the integration of the Pegasus Workflow...

    Provided By University of Southampton

  • White Papers // Jun 2012

    Fault Tolerant Clustering in Scientific Workflows

    Task clustering has been proven to be an effective method to reduce execution overhead and increase the computational granularity of workflow tasks executing on distributed resources. However, a job composed of multiple tasks may have a greater risk of suffering from failures than a job composed of a single task....

    Provided By University of Southampton

  • White Papers // Oct 2012

    Integrating Policy with Scientific Workflow Management for Data-Intensive Applications

    As scientific applications generate and consume data at ever-increasing rates, scientific workflow systems that manage the growing complexity of analyses and data movement will increase in importance. The goal of the authors' work is to improve the overall performance of scientific workflows by using policy to improve data staging into...

    Provided By University of Southampton

  • White Papers // Sep 2011

    Analyzing the Effects of Compiler Optimizations on Application Reliability

    As transistor sizes decrease, transient faults are becoming a significant concern for processor designers. A rich body of research has focused on ways to estimate the vulnerability of systems to transient errors and on techniques to reduce their sensitivity to soft errors. In this research, the authors analyze how compiler...

    Provided By University of Southampton

  • White Papers // Feb 2014

    A Game Theoretic Framework of SLA-Based Resource Allocation for Competitive Cloud Service Providers

    Cloud computing is an emerging paradigm that allows the on-demand delivering of software, hardware, and data as services. It has attracted a lot of attention recently due to the increasing demand for high performance computing and storage. Resource allocation is one of the most important challenges in the cloud computing...

    Provided By University of Southampton

  • White Papers // Feb 2014

    Balancing On-Chip Network Latency in Multi-Application Mapping for Chip-Multiprocessors

    As the number of cores continues to grow in Chip Multi-Processors (CMPs), application-to-core mapping algorithms that leverage the non-uniform on-chip resource access time have been receiving increasing attention. However, existing mapping methods for reducing overall packet latency can-not meet the requirement of balanced on-chip latency when multiple applications are present....

    Provided By University of Southampton

  • White Papers // Sep 2013

    An Electricity Trade Model for Microgrid Communities in Smart Grid

    Distributed microgrid network is the major trend of future smart grid, which contains various kinds of renewable power generation centers and a small group of energy users. In the distributed power system, each microgrid acts as a \"Prosumer\" (producer and consumer) and maximizes its own social welfare. In addition, different...

    Provided By University of Southampton

  • White Papers // May 2009

    SemWeB Semantic Web Browser - Improving Browsing Experience With Semantic and Personalized Information and Hyperlinks

    Imagine a Web browser that can understand the context of a Web page and recommends related semantic hyperlinks in any Web domain. In addition, imagine this browser also understands one's browsing needs and personalizes information for the user. The aim of the research is to achieve this in open Web...

    Provided By University of Southampton

  • White Papers // Dec 2010

    What Is Hidden Within the Cloud?

    Over the past few years cloud computing has become one of the most significant technological trends. The aim of this paper is to discuss the main characteristics of cloud computing, identify the challenges concerning the security and control of information within the cloud and finally to examine how secure information...

    Provided By University of Southampton

  • White Papers // Jun 2010

    Using Cloud for Research: A Technical Review

    The purpose of the TeciRes project was to conduct a technical review of the current landscape within cloud computing to establish the extent to which existing solutions meet encountered and envisioned requirements for using emerging cloud technologies, in particular those which enable computing and storage cloud facilities for research in...

    Provided By University of Southampton

  • White Papers // Dec 2009

    Scalability and Robustness of a Market-Based Network Resource Allocation System

    This paper considers issues related to scalability and robustness in designing a market-based multi-agent system that allocates bandwidth in a communications network. Specically, an empirical evaluation is carried out to assess the system performance under a variety of design congurations in order to provide an insight into network deployment issues....

    Provided By University of Southampton

  • White Papers // Jan 2010

    Designing Energy-Aware Adaptive Routing for Wireless Sensor Networks

    Many energy-aware routing protocols take into account the residual battery power in sensor nodes or/and the energy required for transmission along the path. In the deployment of an environmental sensor network, authors observed that applications may also impose requirements on routing, thus placing higher demands on protocol design. Authors demonstrated...

    Provided By University of Southampton

  • White Papers // Aug 2010

    Cloud Business Models and Sustainability: Impacts for Businesses and e-Research

    Cloud Computing provides added value for organisations; saving costs in operations, resources and staff - as well as new business opportunities for service-oriented models. Achieving long-term sustainability is an important success factor for organisations, as failures to do so may result in Internet bubbles or crashes experienced in 2000s. This...

    Provided By University of Southampton

  • White Papers // May 2009

    An Analysis Of The Applicability Of Credit Scoring For Microfinance

    Credit scoring has been successfully applied in domains as mortgage loans and credit cards. This paper analyzes whether credit scoring should be adopted in microfinance institutions. Previous research on credit scoring in the microfinance field was mostly situated in Latin America and Southern Africa. To the best of the knowledge,...

    Provided By University of Southampton

  • White Papers // Jan 2010

    Implementations of Virtual Organization in the Wireless Home Networking Environments

    The objective and motivation for this paper is to simplify the deployment for Virtual Organization (VO) and investigate the possibilities to deploy in smaller areas and in the Wireless Local Area (WLAN) environments. This paper demonstrates a break-through in the current deployment, where large numbers of computers, software, resources, people...

    Provided By University of Southampton

  • White Papers // Mar 2010

    A Categorisation of Cloud Computing Business Models

    This paper reviews current cloud computing business models and presents proposals on how organizations can achieve sustainability by adopting appropriate models. One classify cloud computing business models into eight types: Service Provider and Service Orientation; Support and Services Contracts; In-House Private Clouds; All-In-One Enterprise Cloud; One-Stop Resources and Services; Government...

    Provided By University of Southampton

  • White Papers // Oct 2010

    Electronic Book of Network Security: Introduction to Network Security

    Technology is now widely used in a variety of educational support situations to improve the quality of education. It can be used to redress the imbalances of the old system and help in developing new teaching and learning strategies. The basis of this project is to design and develop an...

    Provided By University of Southampton

  • White Papers // Nov 2010

    Import Tariffs Enforcement With Low Administrative Capacity

    Import tariff receipts represent an important share of government revenues in many developing countries and there has recently been a surge in empirical studies showing how evasion in this field is a pervasive phenomenon. The author shows that when the fiscal authority has an imperfect detection technology, there is an...

    Provided By University of Southampton

  • White Papers // Jul 2009

    SMT-Based BoundedModel Checking for Embedded ANSI-C Software

    Propositional bounded model checking has been applied successfully to verify embedded software but is limited by the increasing propositional formula size and the loss of structure during the translation. These limitations can be reduced by encoding word-level information in theories richer than propositional logic and using SMT solvers for the...

    Provided By University of Southampton

  • White Papers // Nov 2009

    Continuous Verification of Large Embedded Software Using SMT-Based Bounded Model Checking

    The complexity of software in embedded systems has increased significantly over the last years so that software verification now plays an important role in ensuring the overall product quality. In this paper, SAT-based bounded model checking has been successfully applied to discover subtle errors, but for larger applications, it often...

    Provided By University of Southampton

  • White Papers // Jan 2011

    Exploitation of Machine Learning Techniques in Modeling Phrase Movements for Machine Translation

    The authors propose a Distance Phrase Reordering model (DPR) for Statistical Machine Translation (SMT), where the aim is to learn the grammatical rules and context dependent changes using a phrase reordering classification framework. They consider a variety of machine learning techniques, including state-of-the-art structured prediction methods. Techniques are compared and...

    Provided By University of Southampton

  • White Papers // Sep 2010

    Dynamic Networks and Distributed Problem-Solving

    The effect of dynamic networks on distributed problem-solving was examined using a multi-agent simulation environment. Synthetic agents were tasked with the problem of finding optimal solutions to a specific design problem, and they were allowed to communicate the results of their search efforts to other agents via a dynamically-evolving communication...

    Provided By University of Southampton

  • White Papers // Jul 2010

    Semantic Networks and Shared Understanding: A Network-Based Approach to Representing and Visualizing Shared Understanding

    Semantic networks were developed in the organizational communication literature to provide a means of representing the shared interpretations that people have of organizational message content. Semantic networks can also be used, the authors suggest, to support the representation and visualization of shared understanding in military coalition contexts. The basic approach...

    Provided By University of Southampton

  • White Papers // Jul 2010

    Modelling the Dynamics of Collective Cognition: A Network-Based Approach to Socially-Mediated Cognitive Change

    A number of studies in the network science literature have attempted to model the effect of network structure on cognitive state fluctuations in social networks. For the most part, these networks use highly simplified models of both cognitive state and social influence. In order to extend these studies and provide...

    Provided By University of Southampton

  • White Papers // Jun 2010

    Macroeconomic Confusion

    The "New Classical Macroeconomists" seem to pride themselves of pursuing a rigorous approach to macroeconomic phenomena (LUCAS and SARGENT, 1979). Yet its foundations are shaky, and its terminology is confused. This will be outlined in the following. Section 1 starts by explaining TINBERGEN's approach to estimating economic relationships. This approach,...

    Provided By University of Southampton