1,720,960 research outputs found
A Mixed Reality Approach for Innovative Pair Programming Education with a Conversational AI Virtual Avatar
Full text linkPair Programming (PP) is an Agile software development methodology that involves two developers working together on a single computer. However, the physical presence of two developers has become a challenge in recent years due to the pandemic, necessitating remote collaboration methods such as Distributed Pair Programming (DPP). DPP has been found to have similar benefits to in-person PP, but the issue of team compatibility remains unresolved. These are more evident in the educational field of Agile methodologies. To address these challenges, we developed a novel approach by creating a Mixed Reality (MR) application that enables users to learn PP with the assistance of a conversational intelligent virtual avatar. The application uses the HoloLens MR device and a Conversational Agent (CA) extension integrated into Visual Studio Code to provide suggestions for improving the code written by the user. The virtual avatar animates these suggestions, making it appear to speak and interact with the user in real time. This system aims to overcome the limitations of common DPP methods, allowing a single developer to learn and apply the PP methodology even when a human partner is unavailable
ARTISTA: Redefining Pottery Design with Virtual Reality and Physically Simulated Clay
No full textVirtual Reality (VR) applications have gained significant popularity in various fields, including design and manufacturing. This paper introduces a novel VR application that simulates a 3D clay printer. The application utilizes the Oculus Quest 2 Head Mounted Display (HMD), enabling users to create virtual pots by manoeuvring a virtual extruder that extrudes and deposits strands of clay in layers. Two features define this application: incorporating a virtual coiling technique, offering guided assistance throughout the pottery prototyping process, and integrating physical simulation that provides users with real-time feedback on the final results achievable using a real 3D clay printer. Users can now design and iterate virtually without physically printing, reducing material waste and improving the overall creative process. Moreover, this application saves the information necessary to create the designed pottery piece with a 3D clay printer. We present a preliminary version that enables artisans in VR to craft unique, handmade virtual pottery pieces, fostering creativity and enabling the exploration of many design possibilities
VICO-DR: A Collaborative Virtual Dressing Room for Image Consulting
No full textIn recent years, extended reality has increasingly been used to enhance the shopping experience for customers. In particular, some virtual dressing room applications have begun to develop, as they allow customers to try on digital clothes and see how they fit. However, recent studies found that the presence of an AI or a real shopping assistant could improve the virtual dressing room experience. In response to this, we have developed a collaborative synchronous virtual dressing room for image consulting that allows customers to try on realistic digital garments chosen by a remotely connected human image consultant. The application has different features for the image consultant and the customer. The image consultant can connect to the application, define a database of garments, select different outfits with different sizes for the customer to try, and communicate with the customer through a single RGB camera system. The customer-side application can visualize the description of the outfit that the avatar is wearing, as well as the virtual shopping cart. The main purpose of the application is to offer an immersive experience, ensured by the presence of a realistic environment, an avatar that resembles the customer, a real-time physically-based cloth simulation algorithm, and a video-chat system
Conditional simulation of the sedimentary facies of an acquifer
No full textThis paper describes the results of a simulation of the sedimentary facies of the Fucino acquifer in central Italy. Simulation was carried out using the technique of conditional simulation of random sets based on truncating Gaussian random variables. The simulation allowed to reconstruct the shape, dimensions and position of the different sedimentary bodies of the acquifer
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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