University of Leicester

Displaying 1-33 of 33 results

  • White Papers // Nov 2013

    Modeling and Representing Negation in Data-driven Machine Learning-based Sentiment Analysis

    The authors propose a scheme for explicitly modeling and representing negation of word n-grams in an augmented word n-gram feature space. For the purpose of negation scope detection, they compare 2 methods: the simpler regular expression-based NegEx, and the more sophisticated conditional random field-based LingScope. Additionally, they capture negation implicitly...

    Provided By University of Leicester

  • White Papers // Aug 2013

    Towards Linked Data Based Enterprise Information Integration

    Data integration in large enterprises is a crucial but at the same time costly, long lasting and challenging problem. In the last decade, the prevalent data integration approaches were primarily based on XML, web services and Service Oriented Architectures (SOA). The authors argue that classic SOA architectures may be well-suited...

    Provided By University of Leicester

  • White Papers // May 2013

    Expressing Business Process Model as OWL-S Ontologies

    BPEL4WS is a well-established business process standard that can be used to orchestrate service-based workflows. However, the rapid growth and automation demands of e-business and grid applications require BPEL4WS to provide enhanced semantic annotations to achieve the goal of business processes automation. Here, OWL-S (OWL for Web Services) is designed...

    Provided By University of Leicester

  • White Papers // Apr 2013

    Sorry, I don't speak SPARQL - Translating SPARQL Queries into Natural Language

    Over the past years, semantic web and linked data technologies have reached the backend of a considerable number of applications. Consequently, large amounts of RDF data are constantly being made available across the planet. While experts can easily gather information from this wealth of data by using the W3C standard...

    Provided By University of Leicester

  • White Papers // Jan 2013

    Towards Semantic Matching of Business Services and Electronic Services

    In the context of environments which are defined according to the service orientation paradigm such as service-oriented enterprises [He08] and service-oriented computing platforms [PG03] the term service is defined as a self-contained, loosely coupled entity that encapsulates a limited piece of functionality, is reusable, able to be composed, and provides...

    Provided By University of Leicester

  • White Papers // Jul 2012

    Evaluating Social Tagging for Business Process Models

    Finding business process models in a model repository is a challenge that needs to be tackled for efficient business process management. Existing process model similarity measures compare models based on named elements and model structure. Social tagging enriches models with so-called tags - words or short phrases describing the content...

    Provided By University of Leicester

  • White Papers // Jun 2012

    Learning Business Rules for Adaptive Process Models

    This paper presents a new approach to handling knowledge-intensive business processes in an adaptive, flexible and accurate way. The authors propose to support processes by executing a process skeleton, consisting of the most important recurring activities of the process, through a workflow engine. This skeleton should be kept simple. The...

    Provided By University of Leicester

  • White Papers // Apr 2012

    Evaluating the Impact of Frame Aggregation on Video-Streaming Over IEEE 802.11n Multihop Networks

    In this paper, the authors study the effects of frame aggregation on video streaming performance in a real-world IEEE 802.11n testbed. They quantitatively characterize delay, video quality, and mean aggregate size in two multi-hop scenarios. They observe that streaming applications naturally take advantage of frame aggregation, both in single- and...

    Provided By University of Leicester

  • White Papers // Apr 2012

    NERD Meets NIF: Lifting NLP Extraction Results to the Linked Data Cloud

    The authors have often heard that data is the new oil. In particular, extracting information from semi-structured textual documents on the web is key to realize the linked data vision. Several attempts have been proposed to extract knowledge from textual documents, extracting named entities, classifying them according to pre-defined taxonomies...

    Provided By University of Leicester

  • White Papers // Apr 2012

    Towards Customer-Individual Configurations of Business Process Models

    Now-a-days business process models are a common approach to describe and analyze existing business processes and to create new processes in a structured way. However, with growing complexity of process models there is a lack of comprehensibility. Using existing notations, it is challenging or even impossible to define temporal and...

    Provided By University of Leicester

  • White Papers // Nov 2011

    A Comparative Survey of Business Process Similarity Measures

    Similarity measures for business process models have been suggested for different purposes such as measuring compliance between reference and actual models, searching for related models in a repository, or locating services that adhere to a specification given by a process model. The aim of the authors' paper is to provide...

    Provided By University of Leicester

  • White Papers // Aug 2011

    Load Balancing for MapReduce-based Entity Resolution

    The effectiveness and scalability of MapReduce-based implementations of complex data-intensive tasks depend on an even redistribution of data between maps and reduce tasks. In the presence of skewed data, sophisticated redistribution approaches thus become necessary to achieve load balancing among all reduce tasks to be executed in parallel. For the...

    Provided By University of Leicester

  • White Papers // Jul 2011

    Analysing Differences Between Business Process Similarity Measures

    Now-a-days, it is not uncommon that organizations maintain repositories containing hundreds or thousands of Business Process Models. For the purpose of searching such a repository for models that are similar to a query model, many similarity measures have been suggested in the literature. Other measures have been suggested for different...

    Provided By University of Leicester

  • White Papers // Jul 2011

    A Proposal for a Method to Translate BPMN Model Into UML Activity Diagram

    BPMN is one of the most popular business processes modeling language now-a-days. But to implementation a BPMN can be a challenged for everyone involved, from Business modeler to Software engineer. UML is stable standard for software implementation and widely adopted in the industry. UML Activity diagram has the same purpose...

    Provided By University of Leicester

  • White Papers // Jan 2011

    Rate Of Discount And Inflation With Particular Reference To The Electricity Supply Industry

    The importance of establishing the correct discount rate for use in investment choice calculations is widely acknowledged and has received much attention. Less attention has, however, been given to the related point of how this chosen rate should be adjusted to allow for inflation in times of a general depreciation...

    Provided By University of Leicester

  • White Papers // Dec 2010

    The Greek Financial Crisis: Growing Imbalances And Sovereign Spreads

    The authors discuss the origins of the Greek financial crisis as manifested in the growing fiscal and current-account deficits since euro-area entry in 2001. They then provide an investigation of spreads on Greek relative to German long-term government debt. Using monthly data over the period 2000 to 2010, they estimate...

    Provided By University of Leicester

  • White Papers // Nov 2010

    Briefing For ALL Members

    Here the author summarize the main points as the author see them in relation to languages, although many of the broader strategic changes set out by the Coalition Government will also have an impact on individual subjects. The White Paper identifies languages as a key subject which needs support and...

    Provided By University of Leicester

  • White Papers // Oct 2010

    Rule-Based Generation of Diff Evolution Mappings Between Ontology Versions

    Ontologies such as taxonomies, product catalogs or web directories are heavily used and hence evolve frequently to meet new requirements or to better reflect the current instance data of a domain. To effectively manage the evolution of ontologies it is essential to identify the difference (Diff) between two ontology versions....

    Provided By University of Leicester

  • White Papers // May 2010

    Global Financial Risks, Country Size, Dominant Effects: Is There A Link?

    Recently developed by Cambridge economic school, econometric techniques enabled the authors to investigate the impact of unobserved factors appeared through the presence of dominant effects, and domestic determinants on the short run evolution of net interest spreads for a panel of twenty seven EU Member States. To this end, using...

    Provided By University of Leicester

  • White Papers // Jan 2010

    Structure and Behaviour of Virtual Organisation Breeding Environments

    This paper provides an outline of a formal approach that the authors are developing for modelling Virtual Organisations (VOs) and their Breeding Environments (VBEs). They propose different levels of representation for the functional structures and processes that VBEs and VOs involve, which are independent of the specificities of the infrastructures...

    Provided By University of Leicester

  • White Papers // Nov 2009

    Leadership Cycles

    The authors study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant. Initially, new leaders are eager to enlarge...

    Provided By University of Leicester

  • White Papers // Sep 2009

    Ethics And Industrial Networks: A Levinasian Approach Towards The Study Of Justice In The Supply Chain

    This theoretical paper seeks to make a contribution to studies of ethics in a 'Business-to-business' context. The authors argue that the normative focus of much research in marketing ethics has rendered scholars unable to imagine issues of morality beyond a rather narrowly defined set of tools. Instead, after a quarter...

    Provided By University of Leicester

  • White Papers // Jul 2009

    Nonlinear Inflationary Persistence And Growth: Theory And Empirical Comparative Analysis

    The paper focuses on the decomposition of inflation persistence into the linear and nonlinear components. The hypothesis is that the nonlinear component of inflation persistence results from a technological shock and might positively contribute to economic growth. The microfoundations are derived from an assumption of Calvo pricing and sticky-information Keynesian...

    Provided By University of Leicester

  • White Papers // Jul 2009

    Bounded Delay Packet Scheduling in a Bounded Buffer

    In the bounded delay buffer management problem, introduced in, the authors have a set of packets arriving at at network switch, each having a release time, a deadline, and a weight. The weight represents a Quality of Service (QoS) parameter, i.e. how important it is to send the packet. A...

    Provided By University of Leicester

  • White Papers // Jun 2009

    Model-Based Simulation of VoIP Network Reconfigurations Using Graph Transformation Systems

    Today's Internet is already used as a Public Switch Telephone Network (PSTN), based on the concept of Peer to Peer (P2P) to share voice, video and data. Among several VoIP applications Skype is the most popular. Voice services are the prime source of revenue for carrier service providers - though...

    Provided By University of Leicester

  • White Papers // Apr 2009

    A Review of Personal Communications Services

    PCS is an acronym for Personal Communications Service. PCS has two layers of meaning. At the low layer, from the technical perspective, PCS is a 2G mobile communication technology operating at the 1900 MHz frequency range. At the upper layer, PCS is often used as an umbrella term that includes...

    Provided By University of Leicester

  • White Papers // Apr 2009

    A Heuristic Method for Business Process Model Evaluation

    In this paper, the authors present a heuristic approach for finding errors and possible improvements in business process models. First, they translate the information that is included in a model into a set of Pro-log facts. They then search for patterns which are related to a violation of the soundness...

    Provided By University of Leicester

  • White Papers // Jul 2008

    Business Process Modelling with Continuous Validation

    In this paper, the authors demonstrate the prototype of a modelling tool that applies graph-based rules for identifying problems in business process models. The advantages of their approach are twofold. Firstly, it is not necessary to compute the complete state space of the model in order to find errors. Secondly,...

    Provided By University of Leicester

  • White Papers // Oct 2007

    Business-Driven Service Modeling - A Methodological Approach from the Finance Industry

    Service-orientation is recognized as an important enabler for increasing the efficiency of transformation processes in business. Improved flexibility is becoming a necessity in many competitive industries when companies are forced to quickly meet dynamic customer needs and when organization concepts are increasingly based on networking with partners. A key requirement...

    Provided By University of Leicester

  • White Papers // Jul 2007

    Towards Semantic Business Processes: Concepts, Methodology and Implementation

    The Business Process Execution Language for Web Services (BPEL4WS) is one of the most popular languages and a de facto standard for modeling business processes as Web services compositions. However, it only allows using hard-coded syntactical interfaces for partners and the process itself, i.e. semantic descriptions of services cannot be...

    Provided By University of Leicester

  • White Papers // Jul 2007

    Aligning Software Architectures of Mobile Applications on Business Requirements

    The support of mobile workers with mobile IT solutions can create dremendous improvements in mobile business processes of a company. The main characteristic of such a mobile system is the ability to connect via a (mobile) network to a central server, e.g. in order to access customer data. The frequency...

    Provided By University of Leicester

  • White Papers // Apr 2007

    Analysing and Enhancing Business Processes and IT-Systems for Mobile Workforce Automation - A Framework Approach

    Mobile B2E-applications (Business-To-Employee) can add significant value to a company's business, when large workforce divisions are involved in the execution of certain business processes. From a technical point of view, the major issues are solved (e.g. solutions for connectivity, broadband mobile networks, synchronization mechanisms, secure protocols, etc.). But from a...

    Provided By University of Leicester

  • White Papers // Mar 2006

    Complexity Metrics for Business Process Models

    Business process models, often modelled using graphical languages like UML, serve as a base for communication between the stake-holders in the software development process. To fulfill this purpose, they should be easy to understand and easy to maintain. For this reason, it is useful to have measures that can give...

    Provided By University of Leicester

  • White Papers // Nov 2010

    Briefing For ALL Members

    Here the author summarize the main points as the author see them in relation to languages, although many of the broader strategic changes set out by the Coalition Government will also have an impact on individual subjects. The White Paper identifies languages as a key subject which needs support and...

    Provided By University of Leicester

  • White Papers // Jan 2010

    Structure and Behaviour of Virtual Organisation Breeding Environments

    This paper provides an outline of a formal approach that the authors are developing for modelling Virtual Organisations (VOs) and their Breeding Environments (VBEs). They propose different levels of representation for the functional structures and processes that VBEs and VOs involve, which are independent of the specificities of the infrastructures...

    Provided By University of Leicester

  • White Papers // Jul 2009

    Bounded Delay Packet Scheduling in a Bounded Buffer

    In the bounded delay buffer management problem, introduced in, the authors have a set of packets arriving at at network switch, each having a release time, a deadline, and a weight. The weight represents a Quality of Service (QoS) parameter, i.e. how important it is to send the packet. A...

    Provided By University of Leicester

  • White Papers // Sep 2009

    Ethics And Industrial Networks: A Levinasian Approach Towards The Study Of Justice In The Supply Chain

    This theoretical paper seeks to make a contribution to studies of ethics in a 'Business-to-business' context. The authors argue that the normative focus of much research in marketing ethics has rendered scholars unable to imagine issues of morality beyond a rather narrowly defined set of tools. Instead, after a quarter...

    Provided By University of Leicester

  • White Papers // Nov 2009

    Leadership Cycles

    The authors study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant. Initially, new leaders are eager to enlarge...

    Provided By University of Leicester

  • White Papers // Jul 2009

    Nonlinear Inflationary Persistence And Growth: Theory And Empirical Comparative Analysis

    The paper focuses on the decomposition of inflation persistence into the linear and nonlinear components. The hypothesis is that the nonlinear component of inflation persistence results from a technological shock and might positively contribute to economic growth. The microfoundations are derived from an assumption of Calvo pricing and sticky-information Keynesian...

    Provided By University of Leicester

  • White Papers // Dec 2010

    The Greek Financial Crisis: Growing Imbalances And Sovereign Spreads

    The authors discuss the origins of the Greek financial crisis as manifested in the growing fiscal and current-account deficits since euro-area entry in 2001. They then provide an investigation of spreads on Greek relative to German long-term government debt. Using monthly data over the period 2000 to 2010, they estimate...

    Provided By University of Leicester

  • White Papers // May 2010

    Global Financial Risks, Country Size, Dominant Effects: Is There A Link?

    Recently developed by Cambridge economic school, econometric techniques enabled the authors to investigate the impact of unobserved factors appeared through the presence of dominant effects, and domestic determinants on the short run evolution of net interest spreads for a panel of twenty seven EU Member States. To this end, using...

    Provided By University of Leicester

  • White Papers // Apr 2009

    A Review of Personal Communications Services

    PCS is an acronym for Personal Communications Service. PCS has two layers of meaning. At the low layer, from the technical perspective, PCS is a 2G mobile communication technology operating at the 1900 MHz frequency range. At the upper layer, PCS is often used as an umbrella term that includes...

    Provided By University of Leicester

  • White Papers // Apr 2012

    Evaluating the Impact of Frame Aggregation on Video-Streaming Over IEEE 802.11n Multihop Networks

    In this paper, the authors study the effects of frame aggregation on video streaming performance in a real-world IEEE 802.11n testbed. They quantitatively characterize delay, video quality, and mean aggregate size in two multi-hop scenarios. They observe that streaming applications naturally take advantage of frame aggregation, both in single- and...

    Provided By University of Leicester

  • White Papers // Aug 2011

    Load Balancing for MapReduce-based Entity Resolution

    The effectiveness and scalability of MapReduce-based implementations of complex data-intensive tasks depend on an even redistribution of data between maps and reduce tasks. In the presence of skewed data, sophisticated redistribution approaches thus become necessary to achieve load balancing among all reduce tasks to be executed in parallel. For the...

    Provided By University of Leicester

  • White Papers // Jun 2009

    Model-Based Simulation of VoIP Network Reconfigurations Using Graph Transformation Systems

    Today's Internet is already used as a Public Switch Telephone Network (PSTN), based on the concept of Peer to Peer (P2P) to share voice, video and data. Among several VoIP applications Skype is the most popular. Voice services are the prime source of revenue for carrier service providers - though...

    Provided By University of Leicester

  • White Papers // Jan 2011

    Rate Of Discount And Inflation With Particular Reference To The Electricity Supply Industry

    The importance of establishing the correct discount rate for use in investment choice calculations is widely acknowledged and has received much attention. Less attention has, however, been given to the related point of how this chosen rate should be adjusted to allow for inflation in times of a general depreciation...

    Provided By University of Leicester

  • White Papers // Oct 2010

    Rule-Based Generation of Diff Evolution Mappings Between Ontology Versions

    Ontologies such as taxonomies, product catalogs or web directories are heavily used and hence evolve frequently to meet new requirements or to better reflect the current instance data of a domain. To effectively manage the evolution of ontologies it is essential to identify the difference (Diff) between two ontology versions....

    Provided By University of Leicester

  • White Papers // Nov 2013

    Modeling and Representing Negation in Data-driven Machine Learning-based Sentiment Analysis

    The authors propose a scheme for explicitly modeling and representing negation of word n-grams in an augmented word n-gram feature space. For the purpose of negation scope detection, they compare 2 methods: the simpler regular expression-based NegEx, and the more sophisticated conditional random field-based LingScope. Additionally, they capture negation implicitly...

    Provided By University of Leicester

  • White Papers // Apr 2012

    NERD Meets NIF: Lifting NLP Extraction Results to the Linked Data Cloud

    The authors have often heard that data is the new oil. In particular, extracting information from semi-structured textual documents on the web is key to realize the linked data vision. Several attempts have been proposed to extract knowledge from textual documents, extracting named entities, classifying them according to pre-defined taxonomies...

    Provided By University of Leicester

  • White Papers // Aug 2013

    Towards Linked Data Based Enterprise Information Integration

    Data integration in large enterprises is a crucial but at the same time costly, long lasting and challenging problem. In the last decade, the prevalent data integration approaches were primarily based on XML, web services and Service Oriented Architectures (SOA). The authors argue that classic SOA architectures may be well-suited...

    Provided By University of Leicester

  • White Papers // Oct 2007

    Business-Driven Service Modeling - A Methodological Approach from the Finance Industry

    Service-orientation is recognized as an important enabler for increasing the efficiency of transformation processes in business. Improved flexibility is becoming a necessity in many competitive industries when companies are forced to quickly meet dynamic customer needs and when organization concepts are increasingly based on networking with partners. A key requirement...

    Provided By University of Leicester

  • White Papers // Jan 2013

    Towards Semantic Matching of Business Services and Electronic Services

    In the context of environments which are defined according to the service orientation paradigm such as service-oriented enterprises [He08] and service-oriented computing platforms [PG03] the term service is defined as a self-contained, loosely coupled entity that encapsulates a limited piece of functionality, is reusable, able to be composed, and provides...

    Provided By University of Leicester

  • White Papers // Apr 2009

    A Heuristic Method for Business Process Model Evaluation

    In this paper, the authors present a heuristic approach for finding errors and possible improvements in business process models. First, they translate the information that is included in a model into a set of Pro-log facts. They then search for patterns which are related to a violation of the soundness...

    Provided By University of Leicester

  • White Papers // Jul 2008

    Business Process Modelling with Continuous Validation

    In this paper, the authors demonstrate the prototype of a modelling tool that applies graph-based rules for identifying problems in business process models. The advantages of their approach are twofold. Firstly, it is not necessary to compute the complete state space of the model in order to find errors. Secondly,...

    Provided By University of Leicester

  • White Papers // Jul 2007

    Towards Semantic Business Processes: Concepts, Methodology and Implementation

    The Business Process Execution Language for Web Services (BPEL4WS) is one of the most popular languages and a de facto standard for modeling business processes as Web services compositions. However, it only allows using hard-coded syntactical interfaces for partners and the process itself, i.e. semantic descriptions of services cannot be...

    Provided By University of Leicester

  • White Papers // Jul 2012

    Evaluating Social Tagging for Business Process Models

    Finding business process models in a model repository is a challenge that needs to be tackled for efficient business process management. Existing process model similarity measures compare models based on named elements and model structure. Social tagging enriches models with so-called tags - words or short phrases describing the content...

    Provided By University of Leicester

  • White Papers // Apr 2007

    Analysing and Enhancing Business Processes and IT-Systems for Mobile Workforce Automation - A Framework Approach

    Mobile B2E-applications (Business-To-Employee) can add significant value to a company's business, when large workforce divisions are involved in the execution of certain business processes. From a technical point of view, the major issues are solved (e.g. solutions for connectivity, broadband mobile networks, synchronization mechanisms, secure protocols, etc.). But from a...

    Provided By University of Leicester

  • White Papers // Jul 2011

    A Proposal for a Method to Translate BPMN Model Into UML Activity Diagram

    BPMN is one of the most popular business processes modeling language now-a-days. But to implementation a BPMN can be a challenged for everyone involved, from Business modeler to Software engineer. UML is stable standard for software implementation and widely adopted in the industry. UML Activity diagram has the same purpose...

    Provided By University of Leicester

  • White Papers // Jul 2007

    Aligning Software Architectures of Mobile Applications on Business Requirements

    The support of mobile workers with mobile IT solutions can create dremendous improvements in mobile business processes of a company. The main characteristic of such a mobile system is the ability to connect via a (mobile) network to a central server, e.g. in order to access customer data. The frequency...

    Provided By University of Leicester

  • White Papers // Jun 2012

    Learning Business Rules for Adaptive Process Models

    This paper presents a new approach to handling knowledge-intensive business processes in an adaptive, flexible and accurate way. The authors propose to support processes by executing a process skeleton, consisting of the most important recurring activities of the process, through a workflow engine. This skeleton should be kept simple. The...

    Provided By University of Leicester

  • White Papers // May 2013

    Expressing Business Process Model as OWL-S Ontologies

    BPEL4WS is a well-established business process standard that can be used to orchestrate service-based workflows. However, the rapid growth and automation demands of e-business and grid applications require BPEL4WS to provide enhanced semantic annotations to achieve the goal of business processes automation. Here, OWL-S (OWL for Web Services) is designed...

    Provided By University of Leicester

  • White Papers // Mar 2006

    Complexity Metrics for Business Process Models

    Business process models, often modelled using graphical languages like UML, serve as a base for communication between the stake-holders in the software development process. To fulfill this purpose, they should be easy to understand and easy to maintain. For this reason, it is useful to have measures that can give...

    Provided By University of Leicester

  • White Papers // Apr 2013

    Sorry, I don't speak SPARQL - Translating SPARQL Queries into Natural Language

    Over the past years, semantic web and linked data technologies have reached the backend of a considerable number of applications. Consequently, large amounts of RDF data are constantly being made available across the planet. While experts can easily gather information from this wealth of data by using the W3C standard...

    Provided By University of Leicester

  • White Papers // Nov 2011

    A Comparative Survey of Business Process Similarity Measures

    Similarity measures for business process models have been suggested for different purposes such as measuring compliance between reference and actual models, searching for related models in a repository, or locating services that adhere to a specification given by a process model. The aim of the authors' paper is to provide...

    Provided By University of Leicester

  • White Papers // Jul 2011

    Analysing Differences Between Business Process Similarity Measures

    Now-a-days, it is not uncommon that organizations maintain repositories containing hundreds or thousands of Business Process Models. For the purpose of searching such a repository for models that are similar to a query model, many similarity measures have been suggested in the literature. Other measures have been suggested for different...

    Provided By University of Leicester

  • White Papers // Apr 2012

    Towards Customer-Individual Configurations of Business Process Models

    Now-a-days business process models are a common approach to describe and analyze existing business processes and to create new processes in a structured way. However, with growing complexity of process models there is a lack of comprehensibility. Using existing notations, it is challenging or even impossible to define temporal and...

    Provided By University of Leicester