Elena Simperl

Elena Simperl
University of Southampton · Department of Electronics and Computer Science (ECS)

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About

326
Publications
49,998
Reads
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4,210
Citations
Citations since 2016
133 Research Items
2645 Citations
20162017201820192020202120220100200300400500
20162017201820192020202120220100200300400500
20162017201820192020202120220100200300400500
20162017201820192020202120220100200300400500

Publications

Publications (326)
Article
Web service annotation is of crucial importance to enable efficient search and discovery of such services, especially for those that are REST based. However, the process of annotating such services has several drawbacks, whether automated or not. Automated processes are quite inaccurate and do not in general provide quality annotations. Manual proc...
Article
Open query answering is the idea of answering queries that are not given using the vocabulary of the queried knowledge base but instead the vocabulary of the inquirer. Many aspects of open query answering can be tackled through the combination of human effort with algorithmic techniques. In this paper we explore its applicability to crowdsourcing,...
Chapter
A multitude of approaches to match, merge, and integrate ontologies, and more recently, to interlink RDF data sets, have been proposed over the past years, making ontology alignment one of the most active and at the same time mature area of research and development in semantic technologies. While advances in the area cannot be contested, it is equa...
Conference Paper
Full-text available
Entities on the Web of Data need to have labels in order to be exposable to humans in a meaningful way. These labels can then be used for exploring the data, i.e., for displaying the entities in a linked data browser or other front-end applications, but also to support keyword-based or natural-language based search over the Web of Data. Far too man...
Conference Paper
Full-text available
Many aspects of Linked Data management – including exposing legacy data and applications to semantic formats, designing vocabularies to describe RDF data, identifying links between entities, query processing, and data curation – are necessarily tackled through the combination of human effort with algorith-mic techniques. In the literature on tradit...
Conference Paper
Full-text available
As traditional process elicitation methods are expensive and time consuming, a trend toward collaborative, user-centric, on-line business process modeling can be observed. A common proposal in this area is the use of a semantic wiki-based light-weight knowledge capturing tool for collaborative process development. Although different frameworks have...
Conference Paper
Full-text available
Over 80% of entities on the Semantic Web lack a human-readable label. This hampers the ability of any tool that uses linked data to offer a meaningful interface to human users. We argue that methods for deriving human-readable labels are essential in order to allow the usage of the Web of Data. In this paper we explore, implement, and evaluate a me...
Chapter
Instruments to predict the total costs associated with the development, deployment and ownership of ontology-based technologies are a must for their adoption by the industry. In previous work of ours we have introduced a series of models that analyzed and estimated the costs and benefits associated with the development of ontologies and related kno...
Chapter
One of the major aims of knowledge management has always been to facilitate the sharing and reuse of knowledge. Over the years a long list of technologies and tools pursuing this aim have been proposed, using different types of conceptual structures to capture the knowledge that individuals and groups communicate and exchange. This chapter is conce...
Article
The Semantic Web is gaining momentum. As of today it has reached an order of magnitude of hundreds of billions of RDF triples, most of which being the result of the increasingly popular Linked Open Data community project, supported by related open access-motivated initiatives such as data.gov and its counterparts worldwide, and the solid theoretica...
Article
Full-text available
Wikipedia is a top-ten Web site providing a free encyclopedia cre-ated by an open community of volunteer contributors. As investi-gated in various studies over the past years, contributors have differ-ent backgrounds, mindsets and biases; however, the effects -posi-tive and negative -of this diversity on the quality of the Wikipedia content, and on...
Conference Paper
Many tasks in semantic content creation, from building and aligning vocabularies to annotation or data interlinking, still require human intervention. Even though automatic methods addressing the aforementioned challenges have reached a certain level of maturity, user input is still required at many ends of these processes. The idea of human comput...
Article
Full-text available
DiversiWeb 2011, the First International Workshop on Knowledge Diversity on the Web, co-located with WWW2011 in Hyderabad, India, provided an interdisciplinary forum for researchers and practitioners to present and discuss their ideas related to the challenges posed by diversity on the Web. We addressed a wide array of interdisciplinary questions,...
Conference Paper
The workshop provides an interdisciplinary fo- rum for researchers and practitioners to present and discuss their ideas related to the usage of semantic technologies for information-integrated collaboration. We address a wide array of questions concerning two fundamental design problems arising when realizing integrated collaboration solutions, nam...
Article
Ontologies are often poorly documented, thus being hardly accessible to users and ontology reuse services. A first step towards a better ontology documentation is an explicit schema for their systematic description. To offer an informed background for such a schema we surveyed ontology engineering technology, and the types of ontology-related descr...
Book
A paradigm shift is taking place in computer science: one generation ago, we learned to abstract from hardware to software, now we are abstracting from software to serviceware implemented through service-oriented computing. Yet ensuring interoperability in open, heterogeneous, and dynamically changing environments, such as the Internet, remains a m...
Conference Paper
Full-text available
The interoperability of data depends on the availability of alignments among different ontologies. Various approaches to match, merge and integrate ontologies and, more recently, to interlink RDF data sets were developed over. Even though the research area has matured, the full automation of the ontology alignment process is not feasible and the hum...
Conference Paper
Recently, a trend toward collaborative, user-centric, on-line process modeling can be observed. Unfortunately, current social software approaches mostly focus on the graphical development of processes and do not consider existing textual process description like HowTos or guidelines. We address this issue by combining graphical process modeling tec...
Conference Paper
A large share of tasks in semantic-content authoring crucially rely on human intelligence [4]. This holds for many aspects of ontology engineering, but also for ontology-based annotation, be that for data-oriented resources, such as images, audio and video content, or for functionality, such as Web services and APIs. In previous work of ours we hav...
Conference Paper
The workshop provides an interdisciplinary forum for researchers and practitioners to present and discuss their ideas related to the challenges posed by diversity on the Web. We address a wide array of interdisciplinary questions, which need to be tackled in order to preserve the fragile balance between a world that is continually converging and gr...
Conference Paper
The Web has proved to be an unprecedented success for facilitating the publication, use and exchange of information on a planetary scale, on virtually every topic, and representing an amazing diversity of opinions, viewpoints, mindsets and backgrounds. Its design principles and core technological components have lead to an unprecedented growth and...
Chapter
Full-text available
This chapter gives an overview of the Semantic Web which aims to enable automatic retrieval, extraction and integration of information on the World Wide Web (WWW). Event though the current Web has become a big success, it lacks a proper support to Web users when it comes to finding, extracting and combining information. The main obstacle is that, a...
Chapter
This chapter presents the Web Service Modeling Ontology, an ontology for describing various aspects related to Semantic Web Services. WSMO is the major initiative in the area of Semantic Web Services in Europe. The starting point of WSMO was the Web Service Modeling Framework (WSMF) (Fensel and Bussler in Electronic Commerce Research and Applicatio...
Chapter
The principled combination of semantic and service-oriented technologies has been motivated by the need to provide robust and scalable interoperability solutions in both closed and open IT environments. Several research efforts have addressed the formal semantic descriptions of computational artifacts in order to automate their use and reuse in sof...
Article
Full-text available
In the last few years, semantic technologies are continuously maturing and many applications are adopted in various field. To take a step towards overcoming the knowledge acquisition bottleneck, the challenge of generating semantic content persists. It usually requires the involvement of humans, thus motivations and incentives mechanisms that might...
Article
Industry is slowly picking up on the use of semantic technologies within their systems. In this chapter, we describe how these technologies are employed by seekda, a company focused on Web services. The aim of seekda is to ease the search, interoperability and bundling of services and make them readily usable in various areas, for example, in e-Tou...
Article
Full-text available
Many problems in knowledge acquisition, such as image labeling, still rely on extensive human input and intervention. In order to attract people to invest the necessary time into such tasks, rewarding incentives and motivation mechanisms have been employed. While recruting "human cycles" for such tasks is difficult, online games manage to attract p...
Article
WSMO is just one of the frameworks to semantically describe Web services that have been developed in the last years. OWL-S and its extension SWSF, as well as METEOR-S, have proposed alternative approaches to WSMO that, despite sharing some similarities, exhibit significant differences with respect to the technological standards, languages and under...
Article
In this chapter, we present a selection of extensions and use cases for Semantic Web Services from successful European research projects, namely ‘Data, Information, and Process Integration with Semantic Web Services’ (DIP), ‘Semantics Utilized for Process management within and between Enterprises’ (SUPER) and ‘Service Oriented Architectures for All...
Article
Computer science is on the edge of an important new period of abstraction. A generation ago we learned to abstract from hardware and currently we learn to abstract from software in terms of Service Oriented Architectures (SOA). A Service Oriented Architecture is essentially a collection of services. However, we believe that these SOAs will not sca...
Article
In this chapter, we discuss technologies that can be used to develop and deploy services according to the core principles of the World Wide Web. These new type of services are known as RESTful services. First, we introduce the theoretical aspects of these technologies, including the main concepts, definitions and mechanisms. Second, we illustrate e...
Article
The Web standardization consortium W3C has developed a lightweight bottom-up specification, Semantic Annotation for WSDL (SAWSDL), for adding semantic annotations to WSDL service descriptions. In this chapter, we describe SAWSDL, and then we present WSMO-Lite and MicroWSMO, two related lightweight approaches to Semantic Web Service description, evo...
Chapter
One paradigm that changed academic and industrial perspective on how to realize Enterprise Application Integration (EAI) and build distributed applications is Web services. Their emergence is the result of an evolutionary process that started with the introduction of Remote Procedure Call (RPC) and continued with TP Monitors, Object Brokers and Mes...
Chapter
The goal of Service Science as a discipline is to promote service innovation and increase service productivity. It focuses on accommodating multiple clients and multiple providers’ needs, as well as on the multi-phase business processes.
Chapter
Originally intended to be a simple way to share and interlink documents over the Internet, the Web has evolved into one of the most complex technologies currently available. This transformation took place in a short period of time, and in a rather chaotic manner, leading to the current lack of structure, security and confidentiality including billi...
Chapter
Semantic Web Services promise seamless interoperability of data and applications on a semantic level, thus turning the Web from a world-wide information repository for human consumption only to a device of distributed computation. To this end, appropriate semantic descriptions of Web services and intelligent mechanisms working on this need a solid...
Chapter
Several languages have been developed to describe ontologies, e.g., OWL, KIF, OIL, F-Logic. They have different characteristics and different underlying logics that make them more suitable to certain types of use, e.g., OWL is perfect for describing hierarchies. In some cases, they have been used to describe Semantic Web Services, e.g., OWL-S is an...
Book
Knowledge and information are among the biggest assets of enterprises and organizations. However, efficiently managing, maintaining, accessing, and reusing this intangible treasure is difficult. Information overload makes it difficult to focus on the information that really matters; the fact that much corporate knowledge only resides in employees’...
Book
The books (LNCS 6643 and 6644) constitute the refereed proceedings of the 8th European Semantic Web Conference, ESWC 2011, held in Heraklion, Crete, Greece, in May/June 2011. The 57 revised full papers of the research track presented together with 7 PhD symposium papers and 14 demo papers were carefully reviewed and selected from 291 submissions. T...
Book
The books (LNCS 6643 and 6644) constitute the refereed proceedings of the 8th European Semantic Web Conference, ESWC 2011, held in Heraklion, Crete, Greece, in May/June 2011. The 57 revised full papers of the research track presented together with 7 PhD symposium papers and 14 demo papers were carefully reviewed and selected from 291 submissions. T...
Article
Knowledge workers are central to an organization's success, yet their information management tools often hamper their productivity. This has major implications for businesses across the globe because their commercial advantage relies on the optimal exploitation of their own enterprise information, the huge volumes of online information, and the pro...
Conference Paper
Full-text available
This paper introduces FOLCOM, a FOLksonomy Cost estimatiOn Method that uses a story-points-approach to quantitatively assess the efforts that are cumulatively associated with tagging a collection of information objects by a community of users. The method was evaluated through individual, face-to-face structured interviews with eight knowledge manag...
Article
The ability to efficiently and effectively reuse ontologies is commonly acknowledged to play a crucial role in the large scale dissemination of ontologies and ontology-driven technology, being thus a pre-requisite for the ongoing realization of the Semantic Web. In this article, we give an account of ontology reuse from a process point of view. We...
Conference Paper
Establishing Web services as resources on the Web opens up productive, but challenging new possibilities for open, highly dynamic and loosely-coupled service economies. In addition, lifting services to the semantic level provides a sophisticated means for automating the main service-related management processes and the composition of arbitrary func...
Book
Full-text available
"The way the book is structured and enhanced makes it an ideal reference book for managers, academics, researchers and system designers in the communications field." - Harry Skianis, Computing Reviews (about the 2009 edition of Towards the Future Internet) This peer-reviewed book contains papers describing the major scientific achievements supporte...
Article
Full-text available
Despite significant progress over the last years the large-scale adoption of semantic technologies is still to come. One of the reasons for this state of affairs is assumed to be the lack of useful semantic content, a prerequisite for almost every IT system or application using semantics. Through its very nature, this content can not be created ful...
Article
Full-text available
In this paper we give an account of the current state of practice in ontology engineering based on the findings of a six months empirical survey we performed between October 2008 and March 2009 that analysed 148 ontology engineering projects from industry and academia. The survey focused on process-related issues and looked into the impact of resea...
Conference Paper
Full-text available
Embracing service-oriented architectures in the context of large systems, such as the Web, rises a set of new and challenging issues: increased size and load in terms of users and services, distribution, and dynamicity. A top-down federation of service infrastructure support that we name "service cloud" and that is capable of growing to the scale o...
Article
In this paper we give an account of the current state of practice in ontology engineering based on the findings of a six months empirical survey we performed between October 2008 and March 2009 that analysed 148 ontology engineering projects from industry and academia. The survey focused on process-related issues and looked into the impact of resea...
Conference Paper
Retrieving multimedia remains a challenge on the Web of the 21st century. This is due, among other things, to the inherent limitations of machine-driven multimedia understanding, limitations which equally hold on the Web 2.0 or on its semantic counterpart. Describing multimedia resources through metadata is thus often seen as the only viable way to...
Conference Paper
Full-text available
In this paper we give an account of the current state of practice in ontology engineering (OE) based on the findings of a 6 months empirical survey that analyzed 148 OE projects. The survey focused on process-related issues and looked into the impact of research achievements on real-world OE projects, the complexity of particular ontology developme...
Article
Technologies for the efficient and effective reuse of ontological knowledge are one of the key success factors for the Semantic Web. Putting aside matters of cost or quality, being reusable is an intrinsic property of ontologies, originally conceived of as a means to enable and enhance the interoperability between computing applications. This artic...
Article
Full-text available
The lack of any methodology for modeling Semantic Web Services means that developers wishing to utilize technologies like the Web Service Modeling Ontology, the Web Service Modeling Language, and the Web Service Execution Environment are lost in a Semantic wilderness with no road signs to guide them on their way. This paper presents an initial guid...
Conference Paper
Full-text available
The Internet as we know it today is in an extending success: more than 1.3 billions people are connected to the Web across the globe and more than 700 EB of informations were created or replicated world wide. The development is driven by users, as well as by technology. Web 2.0 changed users to creators of content. Intelligent devices, clothes, fri...
Conference Paper
Full-text available
Establishing Web services as resources on the Web opens up highly productive but challenging new possibilities for service economies. In addition, lifting services to the semantic level enables more sophisticated means for automating the service-related management processes and the composition of arbitrary functionality into new services and busine...
Article
Full-text available
The Semantic Business Process Management (SPBM) approach from the SUPER project utilizes a Semantic Execution Environment (SEE) for the automatic discovery, composition, mediation, and invocation of Web services. In order to enable the Semantic Execution Environment, an engineer must create semantic descriptions of functional, nonfunctional, and be...
Conference Paper
Full-text available
Reliable methods to assess the costs and benefits of ontologies are an important instrument to demonstrate the tangible business value of semantic technologies within enterprises, as an argument to encourage their wide-scale adoption. The economic aspects of ontologies have been investigated in previous work of ours. With ONTOCOM we proposed a cost...
Chapter
A core requirement for the usage of ontologies within enterprizes is the availability of proved and tested techniques which guarantee an efficient engineering of high-quality ontologies, be that by reuse, manual building or automatic knowledge acquisition. Besides feasible technological support this includes in equal measure integrating ontology en...
Article
One of the main items on the eHealth agenda of the European Community is the design and promotion of electronic patient summaries as an instrument to guarantee the continuity of healthcare across national boundaries and to facilitate the pervasive delivery of healthcare, thus ensuring the right to patient mobility and increasing the productivity an...
Conference Paper
Full-text available
Knowledge-based applications are characterized by their use of machine-understandable formalizations of expert knowledge. Complex knowledge structures, and the features which exploit them, can have a significant effect on the effort needed to develop such applications. Means to estimate this effort are, however, lacking. Furthermore, precise benefi...
Conference Paper
After the first generation Web which started with manually created HTML pages, the second generation made the step to machine generated and often active HTML pages. Since these first two generations were meant for direct human processing, the third generation Web, the Semantic Web and Web 2.0 provide machine processable information and social colla...
Conference Paper
The current shift in realizing distributed applications by applying service-oriented principles translates into more and more web services being published on the Web each day. This introduces a set of new challenges such as how to organize, search, rank and select services. For ranking especially the use of any external information to the service,...
Article
The Semantic Web is about creating a global machine-processable Web based on innovative mechanisms to publish, access, manage, use, and integrate the large amounts of data available. Despite promising developments at the technological and outreach levels, a number of challenges, most prominently the openness, dynamics, scale and heterogeneity of th...
Article
Full-text available
This paper provides a roadmap for semantic technologies re-search and development in the context of the Internet of Things. The roadmap surveys the state of the art and the main technical challenges to be addressed in the Internet of Things, one of the core cross-domain area identified within the Future Internet Assembly working groups es-tablished...