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Dynamic Query Tools for Time Series Data Sets: Timebox Widgets for Interactive Exploration

Information Visualization 2004年第1期3卷 1-18页

作者： Hochheiser, Harry Shneiderman, Ben Human–Computer Interaction Lab & Department of Computer Science University of Maryland College Park MD United States Institute for Systems Research and Institute for Advanced Computer Studies University of Maryland College Park MD United States

Timeboxes are rectangular widgets that can be used in direct-manipulation graphical user interfaces (GUIs) to specify query constraints on time series data sets. Timeboxes are used to specify simultaneously two sets of constraints: given a set of N time series profiles, a timebox covering time periods x₁…x₂ (x₁ ≤ x₂) and values y₁…y₂ (y₁ ≤ y₂) will retrieve only those n√N that have values y₁ ≤ y₂ during all times x₁ ≤ x ≤ x₂. TimeSearcher is an information visualization tool that combines timebox queries with overview displays, query-by-example facilities, and support for queries over multiple time-varying attributes. Query manipulation tools including pattern inversion and ‘leaders & laggards’ graphical bookmarks provide additional support for interactive exploration of data sets. Extensions to the basic timebox model that provide additional expressivity include variable time timeboxes, which can be used to express queries with variability in the time interval, and angular queries, which search for ranges of differentials, rather than absolute values. Analysis of the algorithmic requirements for providing dynamic query performance for timebox queries showed that a sequential search outperformed searches based on geometric indices. Design studies helped identify the strengths and weaknesses of the query tools. Extended case studies involving the analysis of two different types of data from molecular biology experiments provided valuable feedback and validated the utility of both the timebox model and the TimeSearcher tool. Timesearcher is available at http://***/hcil/timesearcher. © 2004, SAGE Publications. All rights reserved.

关键词： angular queries bioinformatics dynamic query graphical user interfaces temporal data time series timeboxes TimeSearcher visual query

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A dual-channel beamformer based on time-delay compensation estimator and shifted PCA for speech enhancement 23

A dual-channel beamformer based on time-delay compensation e...

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23rd International Conference on Software, Telecommunications and computer Networks, SoftCOM 2015

作者： Jie, Zhang Liu, Hong Open Lab on Human-Robot Interaction School of Electrical and Computer Engineering Shenzhen Graduate School Peking University Shenzhen518055 China Open Lab on Human-Robot Interaction School of Electrical and Computer Engineering Shenzhen Graduate School Peking University Beijing100871 China

ISBN: (纸本)9789532900569

Speech enhancement is an essential technique to process degraded audio in various applications. Beamforming to eliminate interferences based on sensor arrays is the most well-known method for this issue. However, traditional beamformers often face magnitude incoherence towards received signals due to directional weighting. Therefore, a novel dual-channel beamformer based on time-delay compensation (TDC) and shifted principal components analysis (PCA) is presented in this work. Firstly, our enhancement algorithm utilizes TDC estimator to preserve binaural cues, including interaural time-delay and intensity difference. Then the estimated cues are comprised to improve the shifted PCA, which can reduce noise by extracting primary components. Finally, the aforehand processed audio are input to a beamformer with post-filter to obtain enhanced speech. Experiments have demonstrated that the proposed algorithm could achieve some superiorities in speech intelligibility compared with the state-of-the-arts against real scenarios. © 2015 University of Split, FESB.

关键词： Principal component analysis

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Generating a General Culturing Microorganism Pattern Using a Delta Parallel Robot and Cam-in-Hand Calibration Method 11

Generating a General Culturing Microorganism Pattern Using a...

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11th RSI International Conference on Robotics and Mechatronics, ICRoM 2023

作者： Pasiar, Navid Mohammadi, Arvin Ahangar, Sajjad Khomami, Navid Asadi Masouleh, Mehdi Tale University of Tehran Human and Robot Interaction Lab. Department of Mechanical Eng. Tehran Iran University of Tehran Human and Robot Interaction Lab. Tehran Iran University of Tehran Human and Robot Interaction Lab. School of Electrical and Computer Eng. Tehran Iran

ISBN: (纸本)9798350308105

Robots can play a vital role in laboratory tasks, especially in culturing microorganisms. Currently, many of these operations are performed manually, which leads to biased and irreproducible results. This paper explores a calibration method for minimizing errors of a performing two certain laboratory tasks of swabbing and pipetting. This leads to enhanced accuracy and productivity. This research intends to culture microorganisms in a petri-dish in a specific pattern, measuring the coordinates of each object in the output image so the object location in the real world can be calculated. This research investigates the Cam-in-Hand method for a Delta Parallel Robot, meaning that the camera is mounted on the End-Effector. In this approach, a method of translating image coordinates into real-world coordinates is introduced. It is essential to provide an additional coordinate (in this case $z -$value) before the conversion, given that the camera outputs a 2D image. A vector-based image, in SVG format, as input to the algorithm generates a set of coordinates which determines the main points for swabbing or pipetting operation. Using this data, an array of coordinates is linearly interpolated in 3D space for the swabbing operation. Conversely, the trajectory generated for pipetting uses the 4-5-6-7 interpolating polynomial. The robot then adheres to following the interpolated array of coordinates as a function of time, using a PID controller. The pipetting device is built with a 3D printer using PLA materials. The calibration is done in different heights. The Camin-Hand method leads to ±1 cm precision as a result. Minimum, maximum, and mean errors are 0.092,1.61 and 0.76 respectively for the central point. © 2023 IEEE.

关键词： Calibration

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AskSheet: Efficient human computation for decision making with spreadsheets 14

AskSheet: Efficient human computation for decision making wi...

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17th ACM Conference on computer Supported Cooperative Work and Social Computing, CSCW 2014

作者： Quinn, Alexander J. Bederson, Benjamin B. University of Maryland College Park Human-Computer Interaction Lab United States Computer Science United States Institute for Advanced Computer Studies College Park MD 20740 United States

ISBN: (纸本)9781450325400

The wealth of resources online has empowered individuals and businesses with an unprecedented volume of information to aid in decision making processes. However, finding the many details needed for a non-trivial decision can be very labor-intensive. We present AskSheet, a general system that leverages human computation to acquire the inputs to an arbitrary decision spreadsheet provided by the user. The key innovation is the ability to prioritize the inputs by analyzing the user's spreadsheet formulas to calculate value of information for each of the blanks. By directing workers to find the details that impact the end result most, it results in a conclusive decision without gathering all of the inputs. Copyright © 2014 ACM.

关键词： Spreadsheets

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[POSTER] Movable spatial AR on-the-go 14

[POSTER] Movable spatial AR on-the-go

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14th IEEE International Symposium on Mixed and Augmented Reality, ISMAR 2015

作者： Lee, Ahyun Lee, Joo-Haeng Kim, Jaehong Computer Software Korea University of Science and Technology Korea Republic of Human Robot Interaction Lab ETRI Korea Republic of

ISBN: (纸本)9781467376600

We present a movable spatial augmented reality (SAR) system that can be easily installed in a user workspace. The proposed system aims to dynamically cover a wider projection area using a portable projector attached to a simple robotic device. It has a clear advantage than a conventional SAR scenario where, for example, a projector should be installe1d with a fixed projection area in the workspace. In the previous research [1], we proposed a data-driven kinematic control method for a movable SAR system. This method targets a SAR system integrated with a user-created robotic (UCR) device where an explicit kinematic configuration such as CAD model is unavailable. Our contribution in this paper is to show the feasibility of the data-driven control method by developing a practical application where dynamic change of projection area matters. We outline the control method and demonstrate an assembly guide example using a casually installed movable SAR system. © 2015 IEEE.

关键词： Kinematics

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FingerSkate: Making multi-touch operations less constrained and more continuous

FingerSkate: Making multi-touch operations less constrained ...

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26th Annual ACM Symposium on User Interface Software and Technology, UIST 2013

作者： Son, Jeongmin Lee, Geehyuk Human-Computer Interaction Lab. KAIST 291 Daehakro Yuseong-gu Daejeon 305-701 Korea Republic of

ISBN: (纸本)9781450324069

Multi-touch operations are sometimes difficult to perform due to musculoskeletal constraints. We propose FingerSkate, a variation to the current multi-touch operations to make them less constrained and more continuous. With FingerSkate, once one starts a multi-touch operation, one can continue the operation without having to maintain both fingers on the screen. In a pilot study, we observe that participants could learn to FingerSkate easily and were utilizing the new technique actively. © 2013 Authors.

关键词： Touch screens

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Sharing stories "in the wild:" A mobile storytelling case study

Sharing stories "in the wild:" A mobile storytelling case st...

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作者： Bonsignore, Elizabeth College of Information Studies Human-Computer Interaction Lab. University of Maryland College Park MD United States

ISBN: (纸本)9781450302289

Today's mobile devices are natively equipped with multimedia means for children to capture and share their daily experiences. However, designing authoring tools that effectively integrate the discrete media-capture components of mobile devices to enable rich expression remains a challenge. We report results of a study on the observed use of StoryKit, a mobile application that integrates multimodal media-capture tools to support the creation of multimedia stories on the iPhone/iPod Touch/iPad. The primary objectives of the study were to explore the ways in which StoryKit enables individuals to create and share personal stories;and to investigate how the created stories themselves might inform the design of mobile storytelling applications. Its results suggest that StoryKit's relatively simple but well-integrated interface enables the creation of vibrant, varied narratives. Further, genre analysis of the types of stories created revealed a surprising volume and diversity of use in educational contexts.

关键词： human computer interaction

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Overscan Detection in Digitized Analog Films by Precise Sprocket Hole Segmentation 15th

Overscan Detection in Digitized Analog Films by Precise Spro...

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15th International Symposium on Visual Computing, ISVC 2020

作者： Helm, Daniel Kampel, Martin Institute of Visual Computing and Human-Centered Technology Computer Vision Lab TU Wien Vienna Austria

ISBN: (纸本)9783030645557

Automatic video analysis is explored in order to understand and interpret real-world scenes automatically. For digitized historical analog films, this process is influenced by the video quality, video composition or scan artifacts called overscanning. The main aim of this paper is to find the Sprocket Holes (SH) in digitized analog film frames in order to drop unwanted overscan areas and extract the correct scaled final frame content which includes the most significant frame information. The outcome of this investigation proposes a precise overscan detection pipeline which combines the advantages of supervised segmentation networks such as DeeplabV3 with an unsupervised Gaussian Mixture Model for fine-grained segmentation based on histogram features. Furthermore, this exploration demonstrates the strength of using low-level backbone features in combination with low-cost CNN architectures like SqueezeNet in terms of inference runtime and segmentation performance. Moreover, a pipeline for creating photo-realistic frame samples to build a self-generated dataset is introduced and used in the training and validation phase. This dataset consists of 15000 image-mask pairs including synthetically created and deformed SHs with respect to the exact film reel layout geometry. Finally, the approach is evaluated by using real-world historical film frames including original SHs and deformations such as scratches, cracks or wet splices. The proposed approach reaches a Mean Intersection over Union (mIoU) score of 0.9509 (@threshold: 0.5) as well as a Dice Coefficient of 0.974 (@threshold: 0.5) and outperforms state-of-the-art solutions. Finally, we provide full access to our source code as well as the self-generated dataset in order to promote further research on digitized analog film analysis and fine-grained object segmentation. © 2020, Springer Nature Switzerland AG.

关键词： Sprockets

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Agile human-centered software engineering

Agile human-centered software engineering

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21st British HCI Group Annual Conference: People and computers XXI HCI.But Not as We Know It, HCI 2007

作者： Memmel, Thomas Gundelsweiler, Fredrik Reiterer, Harald Human-Computer Interaction Lab. Box D73 Universitätsstrasse 10 78457 Konstanz Germany

ISBN: (纸本)9781902505947

We seek to close the gap between software engineering (SE) and human-computer interaction (HCI) by indicating interdisciplinary interfaces throughout the different phases of SE and HCI lifecycles. As agile representatives of SE, Extreme Programming (XP) and Agile Modeling (AM) contribute helpful principles and practices for a common engineering approach. We present a cross-discipline user interface design lifecycle that integrates SE and HCI under the umbrella of agile development. Melting IT budgets, pressure of time and the demand to build better software in less time must be supported by traveling as light as possible. We did, therefore, choose not just to mediate both disciplines. Following our surveys, a rather radical approach best fits the demands of engineering organizations. © 2007 Thomas Memmel, Fredrik Gundelsweiler, Harald Reiterer.

关键词： Usability engineering

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Experimence: Considerations for composing a rock song for interactive audience participation 40

Experimence: Considerations for composing a rock song for in...

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40th International computer Music Conference, ICMC 2014, Joint with the 11th Sound and Music Computing Conference, SMC 2014 - Music Technology Meets Philosophy: From Digital Echos to Virtual Ethos

作者： Hödl, Oliver Fitzpatrick, Geraldine Holland, Simon Human-Computer Interaction Group Vienna University of Technology Austria Music Computing Lab Open University United Kingdom

ISBN: (纸本)9789604661374

In popular music genres, typical songs are pre-composed and leave little or no space for improvisation during a live performance. That applies for the performing musicians as well as for the spectators in terms of interactive audience participation. In this study we question these improvisational limits and try to identify strategies for involving the audience as an additional and unpredictable factor in a pre-composed rock song. To do so we composed "Experimence" guided by the standard practice of song writing. The song was premiered at a public live concert where the audience could collaboratively participate in real-time by playing with a balloon together throughout the song. Using a wizard of oz technique, the movements of the balloon influenced the live music played by the pianist. We reflect across this experience and present notable issues raised during the composition, rehearsals and the actual performance. We then classify these aspects as abstract variables of consideration for a composition meant to promote such audience participation. We propose this proof of concept as a starting point for further discussion, suggesting that a song such as Experimence can be a unique and individual piece of music every time it is played although largely pre-composed. Copyright: © 2014 Oliver Hödl et al.

关键词： Balloons

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