Natalia Stash

Eindhoven University of Technology | TUE · Section Information Systems (IS)

In this demo we discuss a few possible scenarios showing adaptation of presentation and information to assist autistic students in succeeding in higher education. These students not only have specific information need, they are also more concerned about their privacy. We use WiBAF (Within Browser Adaptation Framework) for user modeling and adaptati...

This paper explores the applicability of the software prototype developed for personalized access to semantically enriched art collection of the Rijksmuseum in Amsterdam in a different environment – city rather than museum. As a case study we take Amsterdam, a World Heritage City, i.e. a city that includes urban areas designated as World Heritage (...

This paper motivates and describes GALE, the Generic Adaptation Language and Engine that came out of the GRAPPLE EU FP7 project. The main focus of the paper is the extensible nature of GALE. The purpose of this description is to illustrate how a single core adaptation engine can be used for different types of adaptation, applied to different types...

In this paper we present a prototype of a mobile guide called "PUP Sight Guide" that can help the visitors of the cultural heritage sites to discover them in a personalized way. PUP stands for Protected Urban Planet. As a case study we take Amsterdam, a World Heritage City, i.e. a city that includes urban areas designated as World Heritage (WH). We...

Location-based services are widely spread both as entertainment and business applications. The focus of this work is on one particular area – tourist-oriented information services. Multilingual and easy-to-access information is always in a big demand. Our project is supposed to move tourist information services to a higher level by introducing pers...

In this paper, we define reusable inference steps for content-based recommender systems based on semantically-enriched collections. We show an instantiation in the case of recommending artworks and concepts based on a museum domain ontology and a user profile consisting of rated artworks and rated concepts. The recommendation task is split into fo...

This paper describes a real-time routing system that implements a mobile museum tour guide for providing personalized tours tailored to the user position inside the museum and interests. The core of this tour guide originates from the CHIP (Cultural Heritage Information Personalization) Web-based tools set for personalized access to the Rijksmuseum...

Web 2.0 — the perceived second generation of the World Wide Web that aims to improve collaboration, sharing of information and interoperability — enables increasing access to digital collections of museums. The expectation is that more and more people will spend time preparing their visit before actually visiting the museum and look for related inf...

Semantic desktop environments aim at improving the effectiveness and efficiency of users carrying out daily tasks within their personal information management (PIM) infrastructure. They support the user by transferring and exploiting the explicit semantics ...

More and more museums aim at enhancing their visitors' museum experiences in a personalized, intensive and engaging way inside the museum. The CHIP1 (Cultural Heritage Information Personalization) project offers various online and mobile tools to the users to be their own curators, e.g. browsing the online collections, planning personalized museum...

Metadata vocabularies provide various semantic rela-tions between concepts. For content-based recommender systems, these relations enable a wide range of concepts to be recommended. However, not all semantically re-lated concepts are interesting for end users. In this pa-per, we identified a number of semantic relations, which are both within one v...

The increasing availability of (digital) cultural heritage artefacts offers great potential for increased access to art content, but also necessitates tools to help users deal with such abundance of information. User-adaptive art recommender systems aim to present their users with art content tailored to their interests. These systems try to adapt...

This article presents the CHIP demonstrator 1 for providing personalized access to digital museum col- lections. It consists of three main components: Art Recommender, Tour Wizard, and Mobile Tour Guide. Based on the semantically enriched Rijksmuseum Amsterdam 2 collection, we show how Semantic Web technologies can be deployed to (partially) solve...

In this paper we present the CHIP demonstrator aimed at helping users to explore the Rijksmuseum Amsterdam collection both online and inside the museum. Cultural heritage data from various external sources is integrated to provide an enriched semantic knowledge structure. The resulting RDF/OWL graph is the basis for CHIP main functionality for reco...

This paper presents an approach to exploit widely used tag annotations to address two important issues in user-adaptive systems: the cold-start problem and the integration of distributed user models. The paper provides an example of re-use of user interaction data (tags) generated by one application into another one in similar domains for providing...

This paper discusses accuracy in processing ratings of and recommendations for item features. Such processing facilitates feature-based user navigation in recommender system interfaces. Item features, often in the form of tags, categories or meta-data, are becoming important hypertext components of recommender interfaces. Recommending features woul...

This paper presents an approach that shows how user in- teraction data (tags) generated by one application can be exploited by another one in similar domain for integrating user models in distributed and interactive environments. As a scenario, we discuss the tags interoperability among two adaptive systems into the cultural heritage domain.

Perceptions of a system's competence influence acceptance of that system [31]. Ideally, users' perception of competence matches the actual competence of a system. This paper investigates the relation between actual and perceived competence of transparent Semantic Web recommender systems that explain recommendations in terms of shared item concepts....

Web 2.0 enables increased access to the museum digital collection. More and more, users will spend time preparing their visits to the museums and reflecting on them after the visits. In this context, the CHIP (Cultural Heritage Information Personalization) project offers tools to the users to be their own curator, e.g. planning a personalized museu...

This paper deals with a new challenge in Adaptive Hypermedia (AH) and web-based systems: finding the adaptation language to express, independently from the domain model or platform, the intelligent, adaptive behaviour of personalised web courseware. The major requirements for the ideal language are: reuse, flexibility, high level semantics, and eas...

In this paper we present an approach for personalized access to museum collections. We use a RDF/OWL specification of the Rijksmuseum Amsterdam collections as a driver for an interactive dialog. The user gives his/her judgment on the artefacts, indicating likes or dislikes. The elicited user model is further used for generating recommendations of a...

User-adaptive information filters can be a tool to achieve timely delivery of the right information to the right person, a feat critical in crisis management. This paper explores interaction issues that need to be taken into account when designing a user-adaptive information filter. Two case studies are used to illustrate which factors affect trust...

Creating and maintaining adaptive educational applications is hard work for teachers and developers. In order to help the author perform these tasks the e-learning systems must provide authoring and management tools. In this chapter we describe several useful tools for working with adaptive educational hypermedia systems, using the Adaptive Hyperme...

Dolog, P., Kravcik, M., Cristea, A., Burgos, D., De Bra, P., Ceri, S., Devedzic, V., Houben, G-J., Libbrecht, P., Matera, M., Melis, E., Nejdl, W., Specht, M., Stewart, C., Smits, D., Stash, N. and Tattersall, C. (2007). Specification, authoring and prototyping of personalised workplace learning solutions. International Journal of Learning Technolo...

The main objective of the CHIP project is to demonstrate how Semantic Web technologies can be deployed to provide personalized access to digital museum collections. We illustrate our approach with the digital database ARIA of the Rijksmuseum Amsterdam. For the semantic enrichment of the Rijksmuseum ARIA database we collaborated with the CATCH STITC...

AHA! is an Open Source adaptive hypermedia platform, resulting from 10 years of experience with creating, using and improving on-line adap- tive courses and presentations. This paper focuses on some recent additions to AHA! that are especially important for adaptive educational applications, namely stable presentations, adaptive link (icon) annotat...

Typically, the behavior of adaptive systems is specified by a set of rules that are hidden somewhere in the system's implementation. These rules deal with instances of the domain model. Our purpose is to specify the adaptive response of the system at a higher level (to be applied and reused for different domains or adaptive applications) in an expl...

Currently, there is an increasing eort to provide various personalized services on museum web sites. This paper presents an approach for determining user interests in a museum collection with the help of an interactive dialog. It uses a semantically annotated collection of the Rijksmu- seum Amsterdam to elicit specific user's interests in artists,...

"The Design of AHA!" is an adaptive hypertext, and thus not presented in its entirety in this short paper. Because it is not only a hypertext but also adaptive it cannot simply be presented using a linear paper or a set of HTML pages.This paper describes the design of, and demonstrates AHA! (Version 3.0), an Open Source adaptive hypermedia platform...

Can learning styles (LS) be applied in current web- based systems? What are the main issues when applying LS in web-based systems? Can LS be authored in current web-based systems? What are the main issues when authoring LS in web-based systems? Can LS applications improve the efficiency of learning in web-based systems? Can LS applications be teste...

It is obvious that we all have different approaches to learning. Psychologists call these individual differences learning styles (LS). Researchers provide recommendations for possible instructional strategies to support some LS in educational settings and, in particular, in web-based environments. The problem with most existing implementations is t...

The goal of the CHIP (Cultural Heritage Information Personalization) project is to provide personalized access to combined cultural heritage content. The driving case is given by the Rijksmuseum content presented on the museum Web site and visitor guides. The CHIP project aims to extend and integrate existing technologies for semantic browsing and...

Learning styles, as well as the best ways of responding with corresponding instructional strategies, have been intensively studied in the classical educational (classroom) setting. There is much less research of application of learning styles in the new educational space, created by the Web. Moreover, authoring applications are scarce, and they do...

Presentation formats used for publishing information on the World Wide Web are constantly evolving. Simultaneously, the range of devices used to access this information is expanding. In education adaptive hypermedia methods and techniques are often used to tailor a presentation to the individual user. Typical adaptation software can only adapt simp...

AHA! stands for the Adaptive Hypermedia Architecture, an adaptive authoring and delivery platform developed as part of the Adaptive Hypermedia for All (or AHA!) project. (See http://aha.win.tue.nl/.) Adaptation in on-line textbooks makes it possible for learners to study the textbook in different ways without encountering difficulties. Link hiding...

AHA!, the "Adaptive Hypermedia Architecture", was originally developed to support an on-line course with some user guidance through conditional (extra) explanations and conditional link hiding. This paper describes the many extensions and tools that have turned AHA! into a versatile adaptive hypermedia platform. It also shows how AHA! can be used t...

An increasing number of Website developers try to provide some kind of "personalization". In this paper we show how the designers (called "authors" in this paper) can build their adaptive presentations using the AHA! system (for Adaptive Hypermedia Architecture). Most existing Adaptive Hypermedia Systems are special-purpose, aimed at one specific a...

Most websites offer information that is potentially interesting to a wide audience. However, a single presentation may not be suitable for the wide range of people wishing to visit the website. AHA! is a server extension that makes it possible to adapt the content shown on webpages, and the links that appear on these pages, to each individual user....

AHA! is a simple Web-based adaptive hypermedia system. Because of this simplicity it has been studied and experimented with in several research groups, see e.g. (Cini & Valdeni de Lima, 2002), (Calvi & Cristea, 2002), (Romero et al., 2002). This paper identifies shortcomings in AHA! and presents AHA! version 2.0 which tries to overcome the known pr...

Websites that show the same information to all visitors, often also presented in the same way, are no longer considered acceptable. Creating a Website with specific information for different user groups (or even individual users) is cumbersome and leads to a lot of redundancy. AHA! is a simple server-side extension that enables information provider...

After many years of hypertext research, the Dexter model was defined [7] to capture the features of most existing hypertext systems in a single, formal reference model. Likewise, the AHAM model [5] (based on Dexter) describes most features that are found in adaptive hypermedia systems (ahs). In the AHA! project funded by the NLnet Foundation we are...

AHA! is a simple Web-based adaptation engine that was originally developed to support an on-line course. This paper describes AHA! version 2.0, a new major release that aims to significantly increase the adaptive versatility of AHA! without sacrificing AHA!'s simplicity that makes it easy to use. The new features in AHA! are inspired by AHAM [4], a...

The subjects of adaptation and user modeling go hand in hand. User modeling is often performed in order to adapt an application to the user, and the user's interaction with an application is the basis for the user modeling. This tutorial describes the overall architecture of adaptive Web-based (hypermedia) applica-tions, based on the request/respon...

This paper deals with an extremely new hot topic in Adaptive Hypermedia and Web-based systems: finding the perfect adaptation language to express, independently from the domain model, the adaptive behavior of personalized Web courseware. The major requirements for the ideal language are: reuse, flexibility, high level semantics, and ease of use. To...

MOT (My Online Teacher) is an adaptive hypermedia system (AHS) web-authoring environment. MOT is now being further developed according to the LAOS five-layer adaptation model for adaptive hypermedia and adaptive web-material, containing a domain -, goal -, user -, adaptation – and presentation model. The adaptation itself follows the LAG three-laye...

Creating adaptive applications consists of three aspects: creating a conceptual structure of the ap-plication domain, including concept relationships that can be used for adaptation, creating content to match the conceptual structure, and setting up a software environment that performs the adaptive delivery of that content to the end-user. In this...

Typically, the behavior of adaptive systems is specified by a set of rules that are hidden somewhere in the system's implementation. These rules deal with instances of the domain model. The purpose of our approach was to specify the adaptive response of the system at a higher level (able to be applied and reused for different domains or adaptive ap...

This paper deals with a new challenge in Adaptive Hypermedia and Web-based systems: finding the perfect adaptation language to express, independently from the domain model, the intelligent, adaptive behaviour of personalized Web courseware. The major requirements for the ideal language are: reuse, flexibility, high level semantics, and ease of use....

We propose an interactive semantic-based approach for elic- iting user interests in art. This gradually builds user profiles from which the system recommends museum artworks related topics. This paper presents a case study with the Rijksmuseum Amsterdam's collection, enriched with semantic web metadata. We outline a set of functional re- quirements...

Adaptive educational hypermedia environments use properties of the application domain (e.g. conceptual structure of a course, with prerequisite relationships) to perform adaptation based on the user's browsing behaviour. This paper adds the idea of including cognitive styles in the adaptation decisions. Research on cognitive styles suggests that ta...