1,721,074 research outputs found
The role of Intrinsic Motivation in Peer Assessment Activity: an empirical evaluation
No full textTo date, the digital peer assessment activity is spreading rapidly in educational contexts, due to the benefits it offers, such as reducing the workload and increasing the learning outcome. Thus, it is becoming increasingly necessary to clarify the role played by the peers' motivation in this activity. Indeed, although it is reasonable to expect that intrinsic motivation can influence the ability to perform correct peer assessments. Nowadays, to the best of our knowledge, only a few studies have been carried out on this subject. In this paper, aiming at providing evidence about the role that intrinsic motivation does play in the peer assessment activity, we report on a preliminary empirical evaluation, where we test the presence of potential correlation between intrinsic motivation and ability to assess. Our correlation results show that the greater is the ability to judge other peers' tasks, in digital mode, the greater was the motivation, expressed by the necessity to be satisfied and to feel self-realized in carrying out that activity. Overall, our preliminary findings make us confident about the role that intrinsic motivation plays in the peer assessment activity and open up the need to consider the motivation in future peer assessment studies and models
Evaluation of VISTO: a new Vector Image Search Tool
No full textWe present en experimental evaluation of VISTO (Vector Image Search TOol), a new content-based image retrieval (CBIR) system that deals with vector images in SVG (Scalable Vector Graphics) format, differently to most of the CBIR tools available in the literature that deal with raster images. The experimental evaluation of retrieval systems is a critical part in the process of continuously improving the existing retrieval metrics. While researchers in text image retrieval have long been using a sophisticated set of tools for user-based evaluation, this does not yet apply to image retrieval. In this paper, we make a step forward toward this direction and present an experimental evaluation of VISTO in a framework for the production of 2D animation
Reading as Playing: a new tutoring multimedia tool for children with text comprehension problems
No full textNavigation by Zooming in Boxes: Preliminary Evaluation
No full textOur intent is to validate the adoption of an enclosure-based
visualization technique of hierarchical structures for the pre-
sentation of web sites, according to a paradigm that (1)
abandons the concept of web page collection and (2) replaces
the link-traversal based navigation with a zoom-based nav-
igation. In particular we re-visit the box in box technique
(originally introduced to visualize objects in a knowledge
base), based on recursive containment among labeled boxes,
where panning and zooming operations allow to move the
visibility window over the structure. The paper presents the
main features of \boxed" web sites, sketches system charac-
teristics and architecture, and discusses results of a prelim-
inary evaluation study based on the comparison between a
traditional version and a boxed version of the same site
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