213 research outputs found
Discovering Local Attractions from Geo-Tagged Photos
No full textThis paper presents PhotoTrip, an interactive online service which is able to recommend not widely known, but interesting, places along travel itineraries, without human intervention. These points of interest are identified by analyzing the geo-tagged pictures contained in Flickr community. PhotoTrip enriches these pictures with information provided by WikiLocations, to enhance the recommended local attractions with additional information on what is depicted in the photos to help the user to make a choice. We evaluated the system with an user study
Enhancing Photoware in the Social Networks Environment
No full textThis paper presents SMIL PhotoShow, an authoring tool for photo books, which allows the creation of enhanced multimedia presentations, enriched with audio (music or spoken) comments, transition effects and
animations in a very simple way. Our tool allows to create a digital counterpart of a printed photo book with
the aim to bridge the gap between digital web albums and printed photo books. Since authoring a photo book
is a time consuming activity, SMIL PhotoShow provides the users also the possibility to create, with only three
clicks, an engaging slideshows with transition effects and background music
A Laboratory for Prototyping and Testing Multimedia Presentations
No full textIn this article we describe a prototyping environment, which allows an author to set up and test a complex hypermedia presentation. It contains a visual editor, based on a graph notation, in which the nodes are media objects and the edges are the synchronization relations between them; an execution simulator, which helps the author to test the presentation dynamics by manually triggering media related events; and a player, which allows the author to preview the presentation and to visually relate the execution evolution with the interpretation of the synchronization schema
An environment for fast development of tabletop applications.
No full textIn this paper we present Xplane, a software layer for fast development of applications running in separate, independent windows in multi-touch interactive tabletops. Our framework supports gestures recognition and communication between different windows or applications. Moreover, it is based on web technologies to abstract from hardware and software configuration
An empirical analysis of energy consumption of cross-platform frameworks for mobile development
No full textThe increasing fragmentation of mobile devices market has created the problem of supporting all the possible mobile platforms to reach the highest number of potential users. One possible solution is to use cross-platform frameworks, that let develop only one application that is then deployed to all the supported target platforms. Currently available cross-platform frameworks follow different approaches to deploy the final application, and all of them has pros and cons. In this paper, we evaluate and compare together the current frameworks for cross-platform mobile development considering one of the most important aspect when dealing with mobile devices: energy consumption. Our analysis shows and measure how the adoption of cross-platform frameworks impacts energy consumption with respect to the native mobile development, identifies which are the most consuming tasks, and tries to define a final rank among all the different approaches. Moreover, we highlight future development necessary to improve performances of cross-platform frameworks to reach native development performances
Analysis and Verification of SMIL Documents.
No full textIn this paper, we consider the problem of automatic verification of SMIL documents and present a tool which can assist the user in the complex task of authoring a multimedia presentation. The tool is based on a formal semantics defining the temporal aspects of SMIL elements by means of a set of inference rules. The rules, in the spirit of Hoare’s semantics, describe how the execution of a piece of code changes the state of the computation of a player. If any temporal conflict is found, the system returns a message to the user pointing out the element which contains the conflict and its motivation. This helps the user to develop robust and clear code
From a physical system to a pervasive solution to increase people physical activity: Is it possible?
No full textIn the last few decades our lifestyle has deeply changed thanks to the advances in science and engineering: public transportation, escalators, elevators etc., have deeply reduced the physical activity that people usually make during the day. This, combined with an incorrect diet, has increased the number of overweighted people and people with cardiac problems. In this paper we present our preliminary study which shows the feasibility of a pervasive system to incentivize people to prefer the usage of stairs instead of escalators or elevators, transforming this strain into a funny momen
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