scholarly journals danceroom Spectroscopy: At the Frontiers of Physics, Performance, Interactive Art and Technology

Leonardo ◽  
2016 ◽  
Vol 49 (2) ◽  
pp. 138-147 ◽  
Author(s):  
Thomas Mitchell ◽  
Joseph Hyde ◽  
Philip Tew ◽  
David R. Glowacki
Keyword(s):  
Real Time ◽  
Interactive System ◽  
Energy Landscapes ◽  
Interactive Art ◽  
Art Installation ◽  
Art And Technology ◽  
Human Energy ◽  
Performance System ◽  
Physics Performance ◽  
And Performance

danceroom Spectroscopy is an interactive audiovisual art installation and performance system driven by rigorous algorithms commonly used to simulate and analyze nanoscale atomic dynamics. danceroom Spectroscopy interprets humans as “energy landscapes,” resulting in an interactive system in which human energy fields are embedded within a simulation of thousands of atoms. Users are able to sculpt the atomic dynamics using their movements and experience their interactions visually and sonically in real time. danceroom Spectroscopy has so far been deployed as both an interactive sci-art installation and as the platform for a dance performance called Hidden Fields.

Deletion Process_Only you can see my history: Investigating Digital Privacy, Digital Oblivion, and Control on Personal Data Through an Interactive Art Installation

Leonardo ◽  
2016 ◽  
Vol 49 (4) ◽  
pp. 324-333 ◽  
Author(s):  
Kyriaki Goni
Keyword(s):  
Personal Data ◽  
Massive Data ◽  
Interactive Art ◽  
Art Installation ◽  
Art And Technology ◽  
Data Ownership ◽  
The Right ◽  
And Control ◽  
Google Search ◽  
Search History

In light of recent controversies surrounding massive data collection by corporations and government agencies, digital privacy, the right to oblivion, and data ownership have become increasingly important concerns. This paper describes the author’s artwork, Deletion Process_Only you can see my history, an interactive art installation based on her eight-year personal search history in the Google search engine. While the personal search history maintains a sense of privacy, according to the company’s own declaration, the author reveals this archive to viewers in order to raise awareness and provoke reflection on the aforementioned subjects. The author discusses her motivation, describes the making process and the decisions made at each step of designing the installation, while integrating at the same time a deeper discussion on the place of digital privacy and oblivion within the contemporary approach to art and technology.

scholarly journals Observer-based robust integral of the sign of the error control of class I of underactuated mechanical systems: Theory and real-time experiments

2021 ◽  
pp. 014233122110313
Author(s):  
Afef Hfaiedh ◽  
Ahmed Chemori ◽  
Afef Abdelkrim
Keyword(s):  
Real Time ◽  
Error Control ◽  
Degrees Of Freedom ◽  
Sliding Mode ◽  
Mechanical Systems ◽  
Class I ◽  
Control Input ◽  
Underactuated Mechanical Systems ◽  
Control Scheme ◽  
And Performance

In this paper, the control problem of a class I of underactuated mechanical systems (UMSs) is addressed. The considered class includes nonlinear UMSs with two degrees of freedom and one control input. Firstly, we propose the design of a robust integral of the sign of the error (RISE) control law, adequate for this special class. Based on a change of coordinates, the dynamics is transformed into a strict-feedback (SF) form. A Lyapunov-based technique is then employed to prove the asymptotic stability of the resulting closed-loop system. Numerical simulation results show the robustness and performance of the original RISE toward parametric uncertainties and disturbance rejection. A comparative study with a conventional sliding mode control reveals a significant robustness improvement with the proposed original RISE controller. However, in real-time experiments, the amplification of the measurement noise is a major problem. It has an impact on the behaviour of the motor and reduces the performance of the system. To deal with this issue, we propose to estimate the velocity using the robust Levant differentiator instead of the numerical derivative. Real-time experiments were performed on the testbed of the inertia wheel inverted pendulum to demonstrate the relevance of the proposed observer-based RISE control scheme. The obtained real-time experimental results and the obtained evaluation indices show clearly a better performance of the proposed observer-based RISE approach compared to the sliding mode and the original RISE controllers.

Passthrough+

2020 ◽  
Vol 3 (1) ◽  
pp. 1-17
Author(s):  
Gaurav Chaurasia ◽  
Arthur Nieuwoudt ◽  
Alexandru-Eugen Ichim ◽  
Richard Szeliski ◽  
Alexander Sorkine-Hornung
Keyword(s):  
Real Time ◽  
Video Encoding ◽  
View Synthesis ◽  
Performance Constraints ◽  
Trade Offs ◽  
Stereoscopic View ◽  
Target User ◽  
Spatio Temporal ◽  
And Performance ◽  
3D Scene

We present an end-to-end system for real-time environment capture, 3D reconstruction, and stereoscopic view synthesis on a mobile VR headset. Our solution allows the user to use the cameras on their VR headset as their eyes to see and interact with the real world while still wearing their headset, a feature often referred to as Passthrough. The central challenge when building such a system is the choice and implementation of algorithms under the strict compute, power, and performance constraints imposed by the target user experience and mobile platform. A key contribution of this paper is a complete description of a corresponding system that performs temporally stable passthrough rendering at 72 Hz with only 200 mW power consumption on a mobile Snapdragon 835 platform. Our algorithmic contributions for enabling this performance include the computation of a coarse 3D scene proxy on the embedded video encoding hardware, followed by a depth densification and filtering step, and finally stereoscopic texturing and spatio-temporal up-sampling. We provide a detailed discussion and evaluation of the challenges we encountered, as well as algorithm and performance trade-offs in terms of compute and resulting passthrough quality.;AB@The described system is available to users as the Passthrough+ feature on Oculus Quest. We believe that by publishing the underlying system and methods, we provide valuable insights to the community on how to design and implement real-time environment sensing and rendering on heavily resource constrained hardware.

scholarly journals Gaze awareness and metacognitive suggestions by a pedagogical conversational agent: an experimental investigation on interventions to support collaborative learning process and performance

2020 ◽  
Vol 15 (4) ◽  
pp. 469-498 ◽  
Author(s):  
Yugo Hayashi
Keyword(s):  
Collaborative Learning ◽  
Real Time ◽  
Learning Process ◽  
Common Ground ◽  
Learning Performance ◽  
Conversational Agent ◽  
Learning Gains ◽  
Computer Supported Collaborative Learning ◽  
Collaborative Process ◽  
And Performance

AbstractResearch on collaborative learning has revealed that peer-collaboration explanation activities facilitate reflection and metacognition and that establishing common ground and successful coordination are keys to realizing effective knowledge-sharing in collaborative learning tasks. Studies on computer-supported collaborative learning have investigated how awareness tools can facilitate coordination within a group and how the use of external facilitation scripts can elicit elaborated knowledge during collaboration. However, the separate and joint effects of these tools on the nature of the collaborative process and performance have rarely been investigated. This study investigates how two facilitation methods—coordination support via learner gaze-awareness feedback and metacognitive suggestion provision via a pedagogical conversational agent (PCA)—are able to enhance the learning process and learning gains. Eighty participants, organized into dyads, were enrolled in a 2 × 2 between-subject study. The first and second factors were the presence of real-time gaze feedback (no vs. visible gaze) and that of a suggestion-providing PCA (no vs. visible agent), respectively. Two evaluation methods were used: namely, dialog analysis of the collaborative process and evaluation of learning gains. The real-time gaze feedback and PCA suggestions facilitated the coordination process, while gaze was relatively more effective in improving the learning gains. Learners in the Gaze-feedback condition achieved superior learning gains upon receiving PCA suggestions. A successful coordination/high learning performance correlation was noted solely for learners receiving visible gaze feedback and PCA suggestions simultaneously (visible gaze/visible agent). This finding has the potential to yield improved collaborative processes and learning gains through integration of these two methods as well as contributing towards design principles for collaborative-learning support systems more generally.

The VideoMob Interactive Art Installation Connecting Strangers through Inclusive Digital Crowds

2015 ◽  
Vol 5 (2) ◽  
pp. 1-31 ◽  
Author(s):  
Emily Grenader ◽  
Danilo Gasques Rodrigues ◽  
Fernando Nos ◽  
Nadir Weibel
Keyword(s):  
Interactive Art ◽  
Art Installation

scholarly journals Reliability and performance optimization of pipelined real-time systems

2013 ◽  
Vol 73 (6) ◽  
pp. 851-865 ◽  
Author(s):  
Anne Benoit ◽  
Fanny Dufossé ◽  
Alain Girault ◽  
Yves Robert
Keyword(s):  
Real Time ◽  
Performance Optimization ◽  
Real Time Systems ◽  
And Performance ◽  
Time Systems

A Survey of Real-Time Industrial Wireless LAN Research

2015 ◽  
Vol 738-739 ◽  
pp. 1105-1110 ◽  
Author(s):  
Yuan Qing Qin ◽  
Ying Jie Cheng ◽  
Chun Jie Zhou
Keyword(s):  
Real Time ◽  
Future Development ◽  
Wireless Lan ◽  
State Of The Art ◽  
The State ◽  
Local Networks ◽  
The Real ◽  
Time Requirements ◽  
And Performance ◽  
Fundamental Mechanism

This paper mainly surveys the state-of-the-art on real-time communicaton in industrial wireless local networks(WLANs), and also identifys the suitable approaches to deal with the real-time requirements in future. Firstly, this paper summarizes the features of industrial WLANs and the challenges it encounters. Then according to the real-time problems of industrial WLAN, the fundamental mechanism of each recent representative resolution is analyzed in detail. Meanwhile, the characteristics and performance of these resolutions are adequately compared. Finally, this paper concludes the current of the research and discusses the future development of industrial WLANs.

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