Search results for "World Wide Web"
showing 10 items of 488 documents
A Multimodal Interaction Guide for Pervasive Services Access
2007
A pervasive, multimodal virtual guide for a cultural heritage site tour is illustrated. The guide is based on the integration of different technologies such as conversational agents, commonsense reasoning knowledge bases, multimodal interfaces and self-location detection systems. The aim of the work is to offer a more natural, context sensitive access to information with respect to traditional audio/visual pre-recorded guides. A prototype has been developed and implemented on a Qtek 9090 with Windows Mobile 2003 in order to deal with the "Museo Archeologico Regionale di Agrigento" domain.
Combining textual and visual cues for content-based image retrieval on the World Wide Web
2002
A system is proposed that combines textual and visual statistics in a single index vector for content-based search of a WWW image database. Textual statistics are captured in vector form using latent semantic indexing (LSI) based on text in the containing HTML document. Visual statistics are captured in vector form using color and orientation histograms. By using an integrated approach, it becomes possible to take advantage of possible statistical couplings between the content of the document (latent semantic content) and the contents of images (visual statistics). The combined approach allows improved performance in conducting content-based search. Search performance experiments are report…
Automatic Illustration of Short Texts via Web Images
2015
In this paper we propose a totally unsupervised and automatic illustration method, which aims to find onto the Web a set of images to illustrate the content of an input short text. The text is modelled as a semantic space and a set of relevant keywords is extracted. We compare and discuss different methods to create semantic representations by keyword extraction. Keywords are used to query Google Image Search engine for a list of relevant images. We also extract information from the Web pages that include the retrieved images, to create an Image Semantic Space, which is compared to the Text Semantic Space in order to rank the list of retrieved images. Tests showed that our method achieves v…
Internet of things: why we are not there yet
2014
Twenty-one years past since Weiser's vision of ubiquitous computing (UbiComp) has been written, and it is yet to be fully fulfilled despite of almost all the needed technologies already available. Still, the widespread interest in UbiComp and the results in some of its fields pose a question: why we are not there yet? It seems we miss the 'octopus' head. In this paper, we will try to depict the reasons why we are not there yet, from three different points of view: interaction media, device integration and applications.
Facebook as a Small World: a topological hypothesis
2011
Facebook is becoming a pervasive entity as its social, cultural and media ramifications grow deep and entrenched in our daily life. Its nature of a complex system of interactions, bearing a strong similarity to networks built through individual choices and systems shaped by evolu- tionary pressure, makes it an interesting target for research. Scale-free Small World networks, recently popularized by Barabasi, are a topological class pertaining to both these domains, whose members have resilience to disruption and short intermediate connections between nodes. In this paper we show that the topological structure of a specific subset of Facebook, gathered using data from a self-report online qu…
More years, more technologies : aging in the digital era
2018
This special issue presents research on the role of digital health and communication technologies in later life. Drawing from the observation that people’s longer lives are affected by digital technologies to varying extents and recognizing the vast supply of traditional and digital technologies targeted at older users, we maintain that the principle of aged heterogeneity also manifests itself with respect to the adoption and use of digital technologies. Basing on the findings presented in the articles of the issue, we conclude n this introduction to the issue that the concept of aged heterogeneity and the particularities of old age as a stage of life are still insufficiently incorporated i…
Human Technology : Toward the Second Decade
2015
The inaugural issue of Human Technology: An Interdisciplinary Journal on Humans in ICT Environments was published in 2005. The 10 volumes of two to three issues comprise well over 2000 pages. Upon starting as editor in chief in January 2015, I browsed through the archives and noticed that just over 100 articles had been published in the journal. Examining these titles, it is evident that they address a wide variety of topics. Nevertheless, four broad themes emerge: The user of technology, with such foci as user experience, user characteristics, usability, user interface, and, on a more theoretical level, cognition; The learner in a technological environment, covering aspects such as inf…
Open Access Publishing as a Bridge Across the Digital Divide
2007
In today’s world of snappy catchphrases, the complexity of a phenomenon is often hiddenbehind the simplicity of the terminology. Take, for instance, the concept of the digital divide.In short, the term means that there is a gap between those people who have effective access todigital technologies (and all the benefits that brings) and those who do not (Organization forEconomic Cooperation and Development [OECD], 2001; Selhofer & Husing, 2002). Whilethe definition seems simple enough, in fact, there are numerous reasons for the technologygap among people in the world. Typical reasons for the digital divide include material access(i.e., no access to a computer, lack of access to specific soft…
Secrets to design an effective message on Facebook: an application to a touristic destination based on big data analysis
2018
The objective of this research is to identify which are the key variables for designing a message in a social network that can be used by an advertiser to generate Positive/Negative Engagement. The...
Digital transparency and Web 2.0 in Spanish city councils
2016
Abstract The purpose of this study is to provide a Web 2.0 Disclosure Index to measure the Web 2.0 presence of Spanish city councils and the information disclosed by them on these media, and to test whether the use of Web 2.0 tools and social media by local governments improve their Web 1.0 digital transparency. We have structured the Web 2.0 Index as the sum of three partial indexes, referred to presence, the content and the interactivity of the Web, and we have estimated these indexes by a content analysis of the city council's websites. We find that the use of Web 2.0 tools has an essentially ornamental focus, and thus it is necessary to increase the content disclosed, especially at the …