scispace - formally typeset
Search or ask a question
Author

David Estevez

Other affiliations: European University of Madrid
Bio: David Estevez is an academic researcher from Charles III University of Madrid. The author has contributed to research in topics: Humanoid robot & Evolutionary algorithm. The author has an hindex of 5, co-authored 16 publications receiving 49 citations. Previous affiliations of David Estevez include European University of Madrid.

Papers
More filters
Journal ArticleDOI
TL;DR: The main results pointed out the affordances and possibilities of the use of a NAO robot in achieving speech therapy and educational goals and showed the potential that NAO has in therapy and education for children with different disabilities.
Abstract: The aim of this study was to explore the potential of using a social robot in speech therapy interventions in children. A descriptive and explorative case study design was implemented involving the intervention for language disorder in five children with different needs with an age ranging from 9 to 12 years. Children participated in sessions with a NAO-type robot in individual sessions. Qualitative methods were used to collect data on aspects of viability, usefulness, barriers and facilitators for the child as well as for the therapist in order to obtain an indication of the effects on learning and the achievement of goals. The main results pointed out the affordances and possibilities of the use of a NAO robot in achieving speech therapy and educational goals. A NAO can contribute towards eliciting motivation, readiness towards learning and improving attention span of the children. The results of the study showed the potential that NAO has in therapy and education for children with different disabilities. More research is needed to gain insight into how a NAO can be applied best in speech therapy to make a more inclusive education conclusions.

19 citations

Journal ArticleDOI
TL;DR: This work presents advances towards a Robot Household Companion (RHC), focusing on the performance of two particular laundry tasks: unfolding and ironing garments, and the feasibility of a physical implementation in real unmodified environments.

15 citations

Journal ArticleDOI
13 Nov 2020-Sensors
TL;DR: An experience of using a NAO as an assistant in a logopedic and pedagogical therapy with children with different needs is described and benefits from the point of view of the therapist and the children and the acceptance of NAO in therapy are shown.
Abstract: The effectiveness of social robots such as NAO in pedagogical therapies presents a challenge. There is abundant literature focused on therapies using robots with children with autism, but there is a gap to be filled in other educational different needs. This paper describes an experience of using a NAO as an assistant in a logopedic and pedagogical therapy with children with different needs. Even if the initial robot architecture is based on genericbehaviors, the loading and execution time for each specific requirement and the needs of each child in therapy, made it necessary to develop “Adaptive Behaviors”. These evolve into an adaptive architecture, appliedto the engineer–therapist–child interaction, requiring the engineer-programmer to be always present during the sessions. Benefits from the point of view of the therapist and the children and the acceptance of NAO in therapy are shown. A robot in speech-therapy sessions can play a positive role in several logopedic aspectsserving as a motivating factor for the children.Future works should be oriented in developing intelligent algorithms so as to eliminate the presence of the engineer-programmer in the sessions. Additional work proposals should consider deepening the psychological aspects of using humanoid robots in educational therapy.

14 citations

Proceedings ArticleDOI
16 Jun 2017
TL;DR: In this article, a point cloud representation of the working environment is obtained and a custom wrinkleness local descriptor (WiLD) is computed to determine the location of the present wrinkles, using this descriptor, the most suitable ironing path is computed and, based on it, the manipulation algorithm performs the force controlled ironing operation.
Abstract: As robotic systems become more popular in household environments, the complexity of required tasks also increases. In this work we focus on a domestic chore deemed dull by a majority of the population, the task of ironing. The presented algorithm improves on the limited number of previous works by joining 3D perception with force/torque sensing, with emphasis on finding a practical solution with a feasible implementation in a domestic setting. Our algorithm obtains a point cloud representation of the working environment. From this point cloud, the garment is segmented and a custom Wrinkleness Local Descriptor (WiLD) is computed to determine the location of the present wrinkles. Using this descriptor, the most suitable ironing path is computed and, based on it, the manipulation algorithm performs the force-controlled ironing operation. Experiments have been performed with a humanoid robot platform, proving that our algorithm is able to detect successfully wrinkles present in garments and iteratively reduce the wrinkleness using an unmodified iron.

8 citations

Proceedings ArticleDOI
10 Jun 2015
TL;DR: Robot Devastation is a multiplayer augmented reality game using low-cost robots that players can assemble their low- cost robotic platforms and connect them to the central server, commanding them through their home PCs.
Abstract: We present Robot Devastation, a multiplayer augmented reality game using low-cost robots. Players can assemble their low-cost robotic platforms and connect them to the central server, commanding them through their home PCs. Several low-cost platforms were developed and tested inside the game.

6 citations


Cited by
More filters
01 Jan 2016
TL;DR: In this article, the authors present a system for downloading knowledge of language its nature origin and use, which can end up in harmful downloads, such as harmful downloads of books that people have searched numerous times for their favorite books, but ended up with harmful downloads.
Abstract: Thank you very much for downloading knowledge of language its nature origin and use. Maybe you have knowledge that, people have search numerous times for their favorite books like this knowledge of language its nature origin and use, but end up in harmful downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they juggled with some infectious virus inside their desktop computer.

586 citations

Journal Article
TL;DR: In this paper, a method to learn and reproduce robot force interactions in a human-robot interaction setting is proposed, which allows a robotic manipulator to learn to perform tasks that require exerting forces on external objects by interacting with a human operator in an unstructured environment.
Abstract: A method to learn and reproduce robot force interactions in a human–robot interaction setting is proposed. The method allows a robotic manipulator to learn to perform tasks that require exerting forces on external objects by interacting with a human operator in an unstructured environment. This is achieved by learning two aspects of a task: positional and force profiles. The positional profile is obtained from task demonstrations via kinesthetic teaching. The force profile is obtained from additional demonstrations via a haptic device. A human teacher uses the haptic device to input the desired forces that the robot should exert on external objects during the task execution. The two profiles are encoded as a mixture of dynamical systems, which is used to reproduce the task satisfying both the positional and force profiles. An active control strategy based on task-space control with variable stiffness is then proposed to reproduce the skill. The method is demonstrated with two experiments in which the robot learns an ironing task and a door-opening task.

184 citations

Book Chapter
01 Jan 2008
TL;DR: DTW is considered as one effective method in speech pattern recognition, however the bad side of this method is that it requires a long processing time plus large storage capacity, especially for real time recognitions.
Abstract: Template matching is an alternative to perform speech recognition. However, the template matching encountered problems due to speaking rate variability, in which there exist timing differences between the two utterances. Speech has a constantly changing signal, thus it is almost impossible to get the same signal for two same utterances. The problem of time differences can be solved through DTW algorithm: warping the template with the test utterance based on their similarities. So, DTW algorithm actually is a procedure, which combines both warping and distance measurement. DTW is considered as one effective method in speech pattern recognition, however the bad side of this method is that it requires a long processing time plus large storage capacity, especially for real time recognitions.

102 citations

Journal ArticleDOI
TL;DR: It is argued that AI’s likely developments and possible challenges are best understood if the authors interpret AI not as a marriage between some biological-like intelligence and engineered artefacts, but as a divorce between agency and intelligence, that is, the ability to solve problems successfully and the necessity of being intelligent in doing so.
Abstract: In this chapter, I look into the possible developments of Artificial Intelligence (AI) in the near future and identify two likely trends: (a) a shift from historical to synthetic data; and (b) a translation of difficult tasks (in terms of abilities) into complex ones (in terms of computation). I then argue that (a) and (b) will be pursued as development strategies of AI solutions whenever and as far as they are feasible.

77 citations