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检索条件"主题词=Human-centered computing"

共 2020 条记录，以下是1861-1870 订阅

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Visualizing Automatically Detected Periodic Network Activity

Visualizing Automatically Detected Periodic Network Activity

引用

15th IEEE Symposium on Visualization for Cyber Security (VizSec)

作者： Gove, Robert Deason, Lauren Two Six Labs Arlington VA 22203 USA PUNCH Cyber Analyt Grp Ashburn VA USA

ISBN: (纸本)9781538681947

Malware frequently leaves periodic signals in network logs, but these signals are easily drowned out by non-malicious periodic network activity, such as software updates and other polling activity. This paper describes a novel algorithm based on Discrete Fourier Transforms capable of detecting multiple distinct period lengths in a given time series. We pair the output of this algorithm with aggregation summary tables that give users information scent about which detections are worth investigating based on the metadata of the log events rather than the periodic signal. A visualization of selected detections enables users to see all detected period lengths per entity, and compare detections between entities to check for coordinated activity. We evaluate our approach on real-world netflow and DNS data from a large organization, demonstrating how to successfully find malicious periodic activity in a large pool of noise and non-malicious periodic activity.

关键词： human-centered computing Visualization Visualization application domains Information visualization human-centered computing Visualization Visualization design and evaluation methods Security and privacy Intrusion/anomaly detection and malware mitigation Malware and its mitigation

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Rethinking Reality: A Layered Model of Reality for Immersive Systems 17

Rethinking Reality: A Layered Model of Reality for Immersive...

引用

17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Speiginer, Gheric MacIntyre, Blair Georgia Inst Technol Coll Comp Sch Interact Comp Atlanta GA 30332 USA

We introduce the Environment-Augmentation framework and explore how this framework can inform the design of extended reality (i.e.,immersive") systems and experiences.

ISBN: (纸本)9781538675922

We introduce the Environment-Augmentation framework and explore how this framework can inform the design of extended reality (i.e.,immersive") systems and experiences.

关键词： human-centered computing human-centered computing Layered systems Mixed / augmented reality Software and its engineering Virtual reality

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Requirements for Reproducibility of Research in Situational and Spatio-Temporal Visualization 7

Requirements for Reproducibility of Research in Situational ...

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7th IEEE Biennial Workshop on Conference on Evaluation and Beyond - Methodological Approaches for Visualization (BELIV)

作者： Valdez, Andre Calero Schaar, Anne Kathrin Hildebrandt, Julian Romeo Ziefle, Martina Rhein Westfal TH Aachen Human Comp Interact Ctr Aachen Germany

ISBN: (纸本)9781538668849

Research on spatio-temporal visualization is driven by the development of novel visualization and data aggregation techniques. Yet, only little research is conducted on the systematic evaluation of such visualizations. Evaluation of such technology is often conducted in real-life settings and thus lacks fundamental requirements for laboratory-based replication. Replication requires other researchers to independently conduct their own experiments to verify your results. In this position paper, we discuss the requirements for replication studies of spatio-temporal visualization systems. These requirements are often impossible to achieve for highly contextual visualizations such as spatio-temporal visualizations. We argue that reproducibility-allowing other researchers to validate your findings from your data-is a better aim for highly contextual visualizations. We provide a sample workflow to ensure reproducibility for spatio-temporal visualization and discuss its implications.

关键词： human-centered computing Visualization Empirical Studies in Visualization human-centered computing Visualization Visualization design and evaluation methods

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Round Robin Comparison of Inter-Laboratory HRTF Measurements - Assessment with an auditory model for elevation 4

Round Robin Comparison of Inter-Laboratory HRTF Measurements...

引用

IEEE 4th VR Workshop on Sonic Interactions for Virtual Environments (SIVE)

作者： Barumerli, Roberto Geronazzo, Michele Avanzini, Federico Univ Padua Dept Informat Engn Padua Italy Aalborg Univ Dept Architecture Design & Media Technol Aalborg Denmark Univ Milan Dept Comp Sci Milan Italy

ISBN: (纸本)9781538657133

Repeatability of head-related transfer function (HRTF) measurements is a critical issue in intra-and inter-laboratory setups. In this paper, simulated perceptual variabilities of HRTFs are computed as an attempt to understand if different acquisition methods achieve similar results in terms of psychoacoustic features. We consider 12 HRTF independent measurement sets of a Neumann KU-100 dummy head from the international round-robin study Club Fritz. Our analysis of HRTF variabilities focuses on localization performance in elevation within the mid-sagittal plane. A round robin evaluation is performed by means of an auditory model which is able to predict elevation errors and front-back confusion for a given pair of target and template HRTF sets. Results report comparable localization performances between four HRTF databases, suggesting that these acquisition methods led to similar performances in providing elevation cues. Such findings further emphasize the intrinsic complexity and the sensitivity of the HRTF measurement process. The final aim of this study is to certify the quality and repeatability of a measurement process at perceptual level;this findings could be extended to the acquisition of human head acoustics.

关键词： human-centered computing Visualization Visualization techniques Treemaps human-centered computing Visualization Visualization design and evaluation methods

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Visualization of Fullerene Fragmentation 11

Visualization of Fullerene Fragmentation

引用

IEEE Pacific Visualization Symposium (IEEE PacificVis)

作者： Sdeo, Kai Rieck, Bastian Sadlo, Filip Heidelberg Univ Heidelberg Germany

ISBN: (纸本)9781538614242

In this paper, we present a novel visualization approach for the analysis of fragmentation of molecules, with a particular focus on fullerenes. Our approach consists of different components at different levels of detail. Whereas one component is geometric but invariant to rotations, two other components are based on the topological structure of the molecules and thus additionally invariant to deformations. By combining these three components, which aim at the analysis of simulation ensembles of such molecules, and complementing them with a space-time representation that enables detailed interactive inspection of individual simulations, we obtain a versatile tool for the analysis of the fragmentation of structured, symmetrical molecules such as fullerenes. We exemplify the utility of our approach using a tightly coupled simulation approach for the dynamics of fullerenes.

关键词： computing methodologies Modeling and simulation Simulation types and techniques Scientific visualization human-centered computing Visualization Visualization application domains Scientific visualization

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Ensuring Safety in Augmented Reality from Trade-off Between Immersion and Situation Awareness 17

Ensuring Safety in Augmented Reality from Trade-off Between ...

引用

17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Jung, Jinki Lee, Hyeopwoo Choi, Jeehye Nanda, Abhilasha Gruenefeld, Uwe Stratmann, Tim Claudius Heuten, Wilko Korea Res Inst Ships & Ocean Engn Daejeon South Korea Korea Adv Inst Sci & Technol Daejeon South Korea Carl von Ossietzky Univ Oldenburg Oldenburg Germany OFFIS Inst IT Oldenburg Germany

ISBN: (纸本)9781538674598

Although the mobility and emerging technology of augmented reality (AR) have brought significant entertainment and convenience in everyday life, the use of AR is becoming a social problem as the accidents caused by a shortage of situation awareness due to an immersion of AR are increasing. In this paper, we address the trade-off between immersion and situation awareness as the fundamental factor of the AR-related accidents. As a solution against the trade-off, we propose a third-party component that prevents pedestrian-vehicle accidents in a traffic environment based on vehicle position estimation (VPE) and vehicle position visualization (VPV). From a RGB image sequence, VPE efficiently estimates the relative 3D position between a user and a car using generated convolutional neural network (CNN) model with a region-of-interest based scheme. VPV shows the estimated car position as a dot using an out-of-view object visualization method to alert the user from possible collisions. The VPE experiment with 16 combinations of parameters showed that the InceptionV3 model, fine-tuned on activated images yields the best performance with a root mean squared error of 0.34 m in 2.1 ms. The user study of VPV showed the inversely proportional rela- tionship between the immersion controlled by the difficulty of the AR game and the frequency of situation awareness in both quantitatively and qualitatively. Additional VPV experiment assessing two out-of-view object visualization methods (EyeSee360 and Radar) showed no significant effect on the participants' activity, while EyeSee360 yielded faster responses and Radar engendered participants' preference on average. Our field study demonstrated an integration of VPE and VPV which has potentials for safety-ensured immersion when the proposed component is used for AR in daily uses. We expect that when the proposed component is developed enough to be used in real world, it will contribute to the safety-ensured AR, as well as to the populat

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Mixed/augmented reality human-centered computing Visualization Visualization design and evaluation methods

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AnimationVR - Interactive Controller-Based Animating in Virtual Reality 25

AnimationVR - Interactive Controller-Based Animating in Virt...

引用

25th IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Vogel, Daniel Lubos, Paul Steinicke, Frank Univ Hamburg Human Comp Interact Hamburg Germany

ISBN: (纸本)9781538633656

Animating with keyframes gives animators a lot of control but they can be tedious and complicated to work with. Currently, different solutions try to simplify animation creation by recording the natural hand movements of the user. However, most of the solutions are bound to 2D animations [1] or suffer from a low workflow speed [4]. The proposed Unity plugin AnimationVR uses the HTC Vive system to enable the puppeteering animation technique in VR while still allowing for a fast workflow speed by utilizing the 6DOF controllers. During storyboarding or rapid prototyping, the user can immediately see the results of their actions. Also, AnimationVR is written for easy integration in already existing Unity projects. The plugin was evaluated by four animation experts who agreed that AnimationVR accelerates the workflow while decreasing the animation precision. This trade-off makes it useful for storyboarding in professional environments. The experts also noted the ease of use of the puppeteering technique which could enable beginners to create complex animations without any experience with animating.

关键词： human-centered computing human computer interaction (HCI) Interactive systems and tools User interface programming

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Multi-user predictive rendering on remote multi-GPU clusters 4

Multi-user predictive rendering on remote multi-GPU clusters

引用

4th IEEE VR International Workshop on 3D Collaborative Virtual Environments (3DCVE) at IEEE Virtual Reality Conference

作者： Randrianandrasana, J. Chanonier, A. Deleau, H. Muller, T. Porral, P. Krajecki, M. Lucas, L. Univ Reims CReSTIC EA3804 Reims France PSA Peugeot Citroen Paris France PSL Res Univ MINES ParisTech Ctr Robot Paris France United Visual Researchers Paris France

ISBN: (纸本)9781538651322

Many stages of the industry workflow have been benefiting from CAD software applications and real-time computer graphics for decades allowing manufacturers to perform team project reviews and assessments while decreasing the need for expensive physical mockups. However, when it comes to the perceived quality of the final product, more sophisticated physically based engines are often preferred though involving huge computation times. In this context, our work aims at reducing this gap by providing a predictive rendering solution leveraging the computing resources offered by modern multi-GPU supercomputers. To that end, we propose a simple static load balancing approach leveraging the stochastic nature of Monte Carlo rendering. Our solution efficiently exploits the available computing resources and addresses the industry collaboration needs by providing a real-time multi-user web access to the virtual mockup.

关键词： human-centered computing Collaborative interaction Computer Graphic Distributed/Network graphics Computer Graphics Raytracing, Predictive Rendering

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Adopting the Roll Manipulation for Redirected Walking 25

Adopting the Roll Manipulation for Redirected Walking

引用

25th IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Yamamoto, Tatsuki Matsumoto, Keigo Narumi, Takuji Tanikawa, Tomohiro Hirose, Michitaka Univ Tokyo Tokyo Japan

ISBN: (纸本)9781538633656

The contribution of this paper is to propose a novel Redirected Walking (RDW) technique that adopts manipulation gain in the roll direction. RDW is a technique that enables users to explore a large Virtual Environment (VE) while walking within a physically limited space by manipulating their virtual vision. Thus far, studies have determined the detection thresholds for translation, rotation, and curvature gains, but the thresholds are limited in the yaw direction. In contrast, in other research areas, movements in the yaw and roll directions have sometimes been addressed at the same time. In the present study, we investigated the detection threshold of inclination gain in the roll direction. We applied an inclination gain that was increased gradually while the participants walked 3 meters straight ahead. The results showed that users can detect an inclination gain of 1.93. on the left hand and 1.39. on the right hand.

关键词： human-centered computing Virtual reality

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A Realtime Virtual Grasping System for Manipulating Complex Objects 25

A Realtime Virtual Grasping System for Manipulating Complex ...

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25th IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Tian, Hao Wang, Changbo Zhang, Xinyu East China Normal Univ Sch Comp Sci & Software Engn Intelligent Robot Mot & Vis Lab Shanghai Peoples R China

ISBN: (纸本)9781538633656

With the introduction of new VR/AR devices, realistic and fast interaction within virtual environments becomes more and more appealing. However, the challenge is to make interactions with virtual objects accurately reflect interactions with physical objects in realtime. In this paper, we present a virtual grasping system for multi-fingered hands when manipulating complex objects. human-like grasping postures and realistic grasping motions guarantee a physically plausible appearance for hand grasping. Our system does not require any pre-captured motion data. Our system is fast enough to allow realtime interaction during virtual grasping for complex objects.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Virtual reality

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