Sketching is an activity that produces informal documents containing hand-drawn shapes highly variable and ambiguous. In this paper we present a diagrammatic sketch recognizer that is able to cope with the recognition of inaccurate hand-drawn symbols by exploiting error recovery techniques as developed for programming language compilers. The error recovery algorithms are able to interact with r...

We present a workbench for integrating Web documents into semantically enriched representations suitable on the Semantic Web. The approach benefits on the one hand from the facilities provided by Semantic Web technologies and on the other hand from the applicability of well-known knowledge discovery techniques. The main achievement of our contribution is an up-and-running, open and component ba...

Navigating through online documents has become an increasingly common HCI task. This paper investigates alternative methods to improve user performance for browsing World Wide Web and other documents. In a task that involved both scrolling and pointing, we compared three input methods against the status-quo. The results showed that a mouse with a finger wheel did not improve user’s performance;...

Introduction When we search a large text collection for documents we want, we will specify some keywords and we obtain documents containing the keywords. Because the search result contains many documents, it is important to rank them. Though some methods are proposed for ranking, they did not consider positions of the keywords. As a result, such documents sometimes may be useless because the ke...

Spiegel and Moore draw an important distinction between the use of psychological techniques to promote quality of life and their use to promote quantity of life. On the one hand, a considerable body of research documents that hypnosis and other psychological techniques improve the quality of life of cancer patients. On the other hand, only limited empiric evidence supports the view that imagery...

Navigating through online documents has become an increasingly common Human Computer Interaction (HCI) task. This paper investigates alternative methods to improve user performance for browsing World Wide Web and other documents. In a task that involved both scrolling and pointing, we compared three input methods against the status-quo. The results showed that a mouse with a finger wheel did no...

Hypermedia retrieval in combination with querying is a very powerful document access metaphor for digital library systems. Conventional distributed hypermedia systems, however, suffer from some well-known problems that make effective, goal-directed document retrieval and maintenance impossible. On the one hand, relationships between documents are modeled on a very low level of abstraction, prev...

Associating anchor text with pages, to which links are pointing, is a well-known approach to improve retrieval quality. It was used in the first version of Google [Brin and Page 1998]. On one hand, using the anchor text alone allows one to obtain a system with decent performance [Anh and Moffat 2010; Hiemstra and Hauff 2010]. We also know that the anchor text is a strong relevance signal from o...

Digitized legacy document marked up with XML can be used in many ways, e.g., to generate RDF statements about the world described. A prerequisite for doing so is that the document markup is of sufficient quality. Since fully automated markup-generation methods cannot ensure this, manual corrections and cleaning are indispensable. In this paper, we report on our experiences from a digitization a...

This paper proposes a web-based application which combines social tagging, enhanced visual representation of a document and the alignment to an open-ended social ontology. More precisely we introduce on the one hand an approach for automatic extraction of document related keywords for indexing and representing document content as an alternative to social tagging. On the other hand a proposal fo...