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Displaying 1-21 out of 21 total
Affect and Wellbeing: Introduction to Special Section
Found in: IEEE Transactions on Affective Computing
By Rafael A. Calvo,Giuseppe Riva,Christine Lisetti
Issue Date:July 2014
pp. 215-216
The authors first give a brief overview of how computers can afford multiple forms of transformational experiences. Some of these experiences can be purposely designed, for example, to detect and regulate students' affective states to improve aspects of th...
 
Secure and Controlled Sharing of Data in Distributed Computing
Found in: 2013 IEEE 16th International Conference on Computational Science and Engineering (CSE)
By Danan Thilakanathan,Rafael Calvo,Shiping Chen,Surya Nepal
Issue Date:December 2013
pp. 825-832
In today's world, there is a strong need for sharing big data for collaboration. However, privacy and security remains a barrier especially when dealing with massive amounts of data in the Cloud. In particular, there is a growing need for the data owner to...
 
Energy Efficient Fault Tolerance for High Performance Computing (HPC) in the Cloud
Found in: 2013 IEEE 6th International Conference on Cloud Computing (CLOUD)
By Ifeanyi P. Egwutuoha, Shiping Chen,David Levy,Bran Selic,Rafael Calvo
Issue Date:June 2013
pp. 762-769
With cloud computing, a large number of Virtual Machines (VMs) can be provisioned to form high performance computing (HPC) to run computation-intensive applications using the Hardware as a Service (HaaS) model. Fault Tolerance (FT) for HPC in the cloud is ...
 
Frontiers of Affect-Aware Learning Technologies
Found in: IEEE Intelligent Systems
By Rafael A. Calvo,Sidney D'Mello
Issue Date:November 2012
pp. 86-89
Affect-aware technologies are moving the frontiers of how we understand, support, and optimize student learning. The authors explore five areas that exemplify cutting-edge research in the burgeoning field. These include intelligent tutoring systems that de...
 
Detecting Naturalistic Expressions of Nonbasic Affect Using Physiological Signals
Found in: IEEE Transactions on Affective Computing
By Omar AlZoubi,Sidney K. D'Mello,Rafael A. Calvo
Issue Date:July 2012
pp. 298-310
Signals from peripheral physiology (e.g., ECG, EMG, and GSR) in conjunction with machine learning techniques can be used for the automatic detection of affective states. The affect detector can be user-independent, where it is expected to generalize to nov...
 
A Financial Compensation Based Transaction Management Model for Service-Oriented Business Collaborations
Found in: 2012 IEEE 19th International Conference on Web Services (ICWS)
By Zheng Yang,Jinhui Yao,Shiping Chen,David Levy,Rafael Calvo
Issue Date:June 2012
pp. 423-430
The Internet has been encouraging and enabling business collaborations via online transactions over the Web. However, managing transactions in a long-running business process across domains still remains a challenge. In this paper, we propose a novel finan...
 
Collaborative Writing Support Tools on the Cloud
Found in: IEEE Transactions on Learning Technologies
By Rafael A. Calvo,Stephen T. O'Rourke,Janet Jones,Kalina Yacef,Peter Reimann
Issue Date:January 2011
pp. 88-97
Academic writing, individual or collaborative, is an essential skill for today's graduates. Unfortunately, managing writing activities and providing feedback to students is very labor intensive and academics often opt out of including such learning experie...
 
Analysis of Collaborative Writing Processes Using Hidden Markov Models and Semantic Heuristics
Found in: Data Mining Workshops, International Conference on
By Vilaythong Southavilay, Kalina Yacef, Rafael A. Calvo
Issue Date:December 2010
pp. 543-548
In this paper we are interested in discovering collaborative writing patterns in student data collected from a system we designed to support student collaborative writing, and which has been used by over 1,000 students in the past year. A particular functi...
 
Affect Detection: An Interdisciplinary Review of Models, Methods, and Their Applications
Found in: IEEE Transactions on Affective Computing
By Rafael A. Calvo, Sidney D'Mello
Issue Date:January 2010
pp. 18-37
This survey describes recent progress in the field of Affective Computing (AC), with a focus on affect detection. Although many AC researchers have traditionally attempted to remain agnostic to the different emotion theories proposed by psychologists, the ...
 
Concept Extraction from Student Essays, Towards Concept Map Mining
Found in: Advanced Learning Technologies, IEEE International Conference on
By Jorge Villalon, Rafael A. Calvo
Issue Date:July 2009
pp. 221-225
This paper presents a new approach for automatic concept extraction, using grammatical parsers and Latent Semantic Analysis. The methodology is described, also the tool used to build the benchmarkingcorpus. The results obtained on student essays shows good...
 
Visualizing Paragraph Closeness for Academic Writing Support
Found in: Advanced Learning Technologies, IEEE International Conference on
By Stephen T. O'Rourke, Rafael A. Calvo
Issue Date:July 2009
pp. 688-692
In this paper, we describe a novel visualization to support formative assessment in academic writing. The visualization makes use of text mining techniques to provide insight on the flow of topics in an essay. We propose that visualization can be used to m...
 
Incorporating Affect into Educational Design Patterns and Frameworks
Found in: Advanced Learning Technologies, IEEE International Conference on
By Rafael A. Calvo
Issue Date:July 2009
pp. 377-381
In this paper we aim to bring together research in affective computing and educational design. We review the literature and describe the design of a methodological and technical framework for studying pedagogical designs that are informed by the affective ...
 
Concept Map Mining: A Definition and a Framework for Its Evaluation
Found in: Web Intelligence and Intelligent Agent Technology, IEEE/WIC/ACM International Conference on
By Jorge J. Villalon, Rafael A. Calvo
Issue Date:December 2008
pp. 357-360
Concept maps are visual representations of knowledge, widely used in educational contexts. We use the term
 
Automatic Concept Map Scoring Framework Using the Semantic Web Technologies
Found in: Advanced Learning Technologies, IEEE International Conference on
By Ungkyu Park, Rafael A. Calvo
Issue Date:July 2008
pp. 238-240
Over recent decades, concept mapping has been used as a valuable Learning and Teaching tool. Several types of scoring methods for concept map based assessment have been developed. In this paper, we describe the development of an automatic scoring framework...
 
Glosser: Enhanced Feedback for Student Writing Tasks
Found in: Advanced Learning Technologies, IEEE International Conference on
By Jorge Villalón, Paul Kearney, Rafael A. Calvo, Peter Reimann
Issue Date:July 2008
pp. 454-458
We describe Glosser, a system that supports students in writing essays by 1) scaffolding their reflection with trigger questions, and 2) using text mining techniques to provide content clues that can help answer those questions. A comparison with other com...
 
Mining Text with Pimiento
Found in: IEEE Internet Computing
By Juan José García Adeva, Rafael A. Calvo
Issue Date:July 2006
pp. 27-35
Information systems are using an increasing amount of unstructured information in the form of text. This situation has spawned a need to improve the text-mining technologies needed for information retrieval, filtering, and classification. This article comp...
 
A Decomposition Scheme Based on Error-Correcting Output Codes for Ensembles of Text Categorisers
Found in: Information Technology and Applications, International Conference on
By Juan José García Adeva, Rafael A. Calvo
Issue Date:July 2005
pp. 375-378
Error-Correcting Output Codes (ECOC) are commonly used to decompose a multi-category problem into many dichotomies. Therefore, the text categorisation task is performed by an ensemble of binary classifiers instead of a single monolithic classifier. The ens...
 
Certified Assessment Artifacts for ePortfolios
Found in: Information Technology and Applications, International Conference on
By Nicholas L. Carroll, Rafael A. Calvo
Issue Date:July 2005
pp. 130-135
ePortfolios and the learning artifacts they contain must be portable and accessible for the purpose of supporting life-long learning experiences. In this paper, we identify that ePortfolios must also maintain the credibility of the learning artifacts, espe...
 
Network Analysis Improves Interpretation of Affective Physiological Data
Found in: 2013 International Conference on Signal-Image Technology & Internet-Based Systems (SITIS)
By Yuriy Hulovatyy,Sidney DMello,Rafael A. Calvo,Tijana Milenkovic
Issue Date:December 2013
pp. 470-477
Understanding how human physiological responses to a stimulus vary across individuals is critical for the fields of Affective Psychophysiology and Affective Computing. We approach this problem via network analysis. By analyzing individuals' galvanic skin r...
 
Beyond the basic emotions: what should affective computing compute?
Found in: CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13)
By Rafael A. Calvo, Sidney D'Mello
Issue Date:April 2013
pp. 2287-2294
One of the primary goals of Affective Computing (AC) is to develop computer interfaces that automatically detect and respond to users' emotions. Despite significant progress, "basic emotions" (e.g., anger, disgust, sadness) have been emphasized in AC at th...
     
Positive computing: technology for a wiser world
Found in: interactions
By Dorian Peters, Rafael A. Calvo
Issue Date:July 2012
pp. 28-31
Community + Culture features practitioner perspectives on designing technologies for and with communities. We highlight compelling projects and provocative points of view that speak to both community technology practice and the interaction design field as ...
     
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