Gustavo López
University of Costa Rica
72 Papers
175 Citations
Gustavo López is an academic researcher from University of Costa Rica. The author has contributed to research in topics: Computer science & User experience design. The author has an hindex of 8, co-authored 66 publications.
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Papers
User Experience Comparison of Intelligent Personal Assistants: Alexa, Google Assistant, Siri and Cortana.
Ana Berdasco,Gustavo López,Ignacio Díaz-Oreiro,Luis Quesada,Luis A. Guerrero +4 more
- 20 Nov 2019
TL;DR: An evaluation of these four smart personal assistants in two dimensions: the correctness of their answers and how natural the responses feel to users shows that Alexa and Google Assistant are significantly better than Siri and Cortana.
Automatic recognition of the American sign language fingerspelling alphabet to assist people living with speech or hearing impairments
Luis Quesada,Gustavo López,Luis A. Guerrero +2 more
- 22 Mar 2017
TL;DR: A system based on hand tracking devices (Leap Motion and Intel RealSense) used for signs recognition, using a Support Vector Machine for sign classification and remarkable recognition accuracy was achieved with selected signs.
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What Makes Agile Software Development Agile
Marco Kuhrmann,Paolo Tell,Regina Hebig,Jil Klünder,Jürgen Münch,Oliver Linssen,Dietmar Pfahl,Michael Felderer,Christian R. Prause,Steve Macdonell,Joyce Nakatumba-Nabende,David Raffo,Sarah Beecham,Eray Tuzun,Gustavo López,Nicolás Paez,Diego Fontdevila,Sherlock A. Licorish,Steffen Küpper,Guenther Ruhe,Eric Knauss,Özden Özcan-Top,Paul M. Clarke,Fergal Mc Caffery,Marcela Genero,Aurora Vizcaíno,Mario Piattini,Marcos Kalinowski,Tayana Conte,Rafael Prikladnicki,Stephan Krusche,Ahmet Coşkunçay,Ezequiel Scott,Fabio Calefato,Svetlana Pimonova,Rolf Helge Pfeiffer,Ulrik Pagh Schultz,Rogardt Heldal,Masud Fazal-Baqaie,Craig Anslow,Maleknaz Nayebi,Kurt Schneider,Stefan Sauer,Dietmar Winkler,Stefan Biffl,Cecilia Bastarrica,Ita Richardson +46 more
TL;DR: In this paper, the authors present an empirical study grounded in a large-scale international survey that aims to identify software development methods and practices that improve or tame agility in the software industry.
UX Evaluation with Standardized Questionnaires in Ubiquitous Computing and Ambient Intelligence: A Systematic Literature Review
TL;DR: This review intends to determine how the three questionnaires have been applied in the fields of ubiquitous computing and ambient intelligence and also in studies that incorporate nontraditional interfaces, such as haptic, gesture, or speech interfaces, to name a few.
Creating TUIs Using RFID Sensors—A Case Study Based on the Literacy Process of Children with Down Syndrome
TL;DR: A Tangible User Interface (TUI) system based on Radio Frequency Identification (RFID) technology to support literacy for children with Down syndrome and the results of a preliminary evaluation showed that the system helps to improve the interaction between teachers and children.
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