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TanPro-Kit: A tangible programming tool for children 13

TanPro-Kit: A tangible programming tool for children

引用

12th International Conference on interaction Design and Children, IDC 2013

作者： Wang, Danli Qi, Yunfeng Zhang, Yang Wang, Tingting Institue of Software Chinese Academy of Sciences Beijing China Beijing Key Lab. of Human-Computer Interaction Beijing China Graduate University Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781450319188

This paper describes a new tangible programming tool - - TanPro-Kit which was designed for children aged 5 to 9. It consists of programming blocks and a LED pad. The LED pad presents visual animations and audible feedback according to the arrangement of blocks with which children make program to play a maze game. Aiming at lowering the cost of TanPro-Kit, we adopted LED, RFID, wireless and infrared technology to develop the whole system. The system acquires the programming blocks' physical information which is then translated into programming semantic. TanPro-Kit is low-cost, which is more acceptable in developing countries. We ran a user study with 16 children involved, which showed TanPro-Kit to be attractive to children and easy to learn and use. Copyright 2013 ACM.

关键词： Light emitting diodes

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JOINT ESTIMATION OF PITCH, BAND MAGNITUDES AND V/UV DECISIONS FOR MBE VOCODER 5

JOINT ESTIMATION OF PITCH, BAND MAGNITUDES AND V/UV DECISION...

引用

5th European Conference on Speech Communication and Technology, EUROSPEECH 1997

作者： Cho, Yong Duk Kim, Hong Kook Kim, Moo Young Kim, Sang Ryong Human & Computer Interaction Lab. Samsung Advanced Institute of Technology San 14 Nongseo-Ri Kiheung-Eup Kyungki-Do Yongin City449-712 Korea Republic of

The multiband excitation (MBE) vocoder represents speech signal with a pitch, band magnitudes, and a voice/unvoice (V/UV) decision for each spectral band. In the conventional MBE model, model parameters are sequentially estimated in two steps. The pitch and band magnitudes are firstly estimated on the assumption of voiced speech model by the analysis-by-synthesis (AbS) in frequency domain, and then the V/UVs are decided. However, the synthetic spectrum by the above assumption may have large spectral distortion if the speech frame is strongly unvoiced such as transient region. In this paper, we propose joint estimation method which estimates and decides all the model parameters in AbS loop. For this, voiced or unvoiced speech models for each band are used during the analysis procedure. After estimating the parameters with the two speech models, a model for each band is selected so as to produce smaller spectral estimation error. By analyzing the short time spectrum and the long time spectrogram, it is shown that the reproduced speech of the proposed model is superior to that of the conventional one. In addition, through informal listening test we also confirm the superiority of the proposed model. © 1997 5th European Conference on Speech Communication and Technology, EUROSPEECH 1997. All rights reserved.

关键词： Frequency domain analysis

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'Smart' housing for the elderly: Understanding perceptions and biases of rural America

'Smart' housing for the elderly: Understanding perceptions a...

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ACADIA 2007 Conference on Expanding Bodies: Art, Cities and Environment

作者： Satpathy, Lalatendu Mathew, Anijo Punnen Human-Computer Interaction Institute Carnegie Mellon University United States Design Research and Informatics Lab. College of Architecture Art and Design Mississippi State University United States

ISBN: (纸本)9780978097868

It is commonly acknowledged that 'smart' environments, interactive architecture and 'smart' homes will defi ne the next cutting edge in architectural research. Most critics agree that one of the fi rst problems that 'smart' homes will help to address is that of spiraling costs of healthcare and aging-in-place. This may be true for urban settings where there is the fi nancial feasibility for such technologies but what about rural America? It has been conclusively proven that rural America suffers from a lack of healthcare (delivery and access). Prior research (Mathew 2005) has also established that a rural home is different from an urban home. Will technologies designed for the urban home work in a rural setting? And do rural people carry the same attitudes and biases towards technology? This paper continues our research in the design of 'smart' rural environments. It summarizes fi ndings from focus group studies conducted in rural communities that help us to understand attitudes of people towards 'smart' technology. We will use these fi ndings to examine the feasibility of ubiquitous computing and 'smart' spaces in rural areas. In conclusion, we will present guidelines to help designers in the creation of technology to augment healthy aging in rural home settings.

关键词： Smart homes

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GraphTrail: Analyzing large multivariate, heterogeneous networks while supporting exploration history 12

GraphTrail: Analyzing large multivariate, heterogeneous netw...

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30th ACM Conference on human Factors in Computing Systems, CHI 2012

作者： Dunne, Cody Riche, Nathalie Henry Lee, Bongshin Metoyer, Ronald A. Robertson, George G. Microsoft Research One Microsoft Way Redmond WA United States Human-Computer Interaction Lab. Department of Computer Science University of Maryland College Park MD United States School of Electrical Engineering and Computer Science Oregon State University Corvallis OR United States

ISBN: (纸本)9781450310154

Exploring large network datasets, such as scientific collab.ration networks, is challenging because they often contain a large number of nodes and edges in several types and with multiple attributes. Analyses of such networks are often long and complex, and may require several sessions by multiple users. Therefore, it is often difficult for users to recall their own exploration history or share it with others. We introduce GraphTrail, an interactive visualization for analyzing networks through exploration of node and edge aggregates that captures users' interactions and integrates this history directly in the exploration workspace. To facilitate large network analysis, GraphTrail integrates aggregation with familiar charts, drag-and-drop interaction on a canvas, and a novel pivoting mechanism for transitioning between aggregates. Through a three-month field study with a team of archeologists and a qualitative lab.study with ten users, we demonstrate the effectiveness of our design and the benefits of integrated exploration history, including analysis comprehension, insight discovery, and exploration recall. Copyright 2012 ACM.

关键词： Aggregates

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Generating high-coverage semantic orientation lexicons from overtly marked words and a thesaurus

Generating high-coverage semantic orientation lexicons from ...

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2009 Conference on Empirical Methods in Natural Language Processing, EMNLP 2009, Held in Conjunction with ACL-IJCNLP 2009

作者： Mohammad, Saif Dunne, Cody Dorr, Bonnie Laboratory for Computational Linguistics and Information Processing University of Maryland United States Human-Computer Interaction Lab. University of Maryland United States Institute for Advanced Computer Studies University of Maryland United States Department of Computer Science University of Maryland United States Human Language Technology Center of Excellence United States

Sentiment analysis often relies on a semantic orientation lexicon of positive and negative words. A number of approaches have been proposed for creating such lexicons, but they tend to be computationally expensive, and usually rely on significant manual annotation and large corpora. Most of these methods use WordNet. In contrast, we propose a simple approach to generate a high-coverage semantic orientation lexicon, which includes both individual words and multi-word expressions, using only a Roget-like thesaurus and a handful of affixes. Further, the lexicon has properties that support the Polyanna Hypothesis. Using the General Inquirer as gold standard, we show that our lexicon has 14 percentage points more correct entries than the leading WordNet-based high-coverage lexicon (SentiWordNet). In an extrinsic evaluation, we obtain significantly higher performance in determining phrase polarity using our thesaurus-based lexicon than with any other. Additionally, we explore the use of visualization techniques to gain insight into the our algorithm beyond the evaluations mentioned above. © 2009 ACL and AFNLP.

关键词： Thesauri

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The role of commitment devices and self-shaping in persuasive technology

The role of commitment devices and self-shaping in persuasiv...

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作者： Moraveji, Neema Akasaka, Rio Pea, Roy Fogg, B.J. Learning Sciences and Tech. Design Stanford University United States Human-Computer Interaction Stanford University United States Persuasive Technology Lab. Stanford University United States

ISBN: (纸本)9781450302289

We examine the role of self-shaping and commitment devices in persuasive systems. Self-shaping refers to the practice of taking purposeful action in modifying one's environment in order to shape or influence one's own future behavior. We present results from a survey of 23 users that assessed the role self-shaping plays in their use of persuasive technologies. A second survey elicited 65 self-shaping designs from 41 expert users, finding the Fogg Behavior Model describes how the designs were indeed persuasive. We then reviewed 85 tools based on this model to show the two dimensions that can be used to organize persuasive devices: (1) salience of a tool's self-shaping features and (2) their intended flexibility. The resulting four categories of tools are useful for researchers and designers of persuasive systems.

关键词： Surveys

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Towards a framework based on single trial connectivity for enhancing knowledge discovery in BCI

Towards a framework based on single trial connectivity for e...

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8th International Conference on Active Media Technology, AMT 2012

作者： Billinger, Martin Brunner, Clemens Scherer, Reinhold Holzinger, Andreas Müller-Putz, Gernot R. Institute for Knowledge Discovery BCI Lab. Graz University of Technology Austria Research Unit Human-Computer Interaction Institute for Medical Informatics Statistics and Documentation Medical University Graz Austria

ISBN: (纸本)9783642352355

We developed a framework for systematic evaluation of BCI systems. This framework is intended to compare features extracted from a variety of spectral measures related to functional connectivity, effective connectivity, or instantaneous power. Different measures are treated in a consistent manner, allowing fair comparison within a repeated measures design. We applied the framework to BCI data from 14 subjects recorded on two days each, and demonstrated the framework's feasibility by confirming results from the literature. Furthermore, we could show that electrode selection becomes more focal in the second BCI session, but classification accuracy stays unchanged. © 2012 Springer-Verlag.

关键词： Brain computer interface

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Target size study for one-handed thumb use on small touchscreen devices 06

Target size study for one-handed thumb use on small touchscr...

引用

8th International Conference on human-computer interaction with Mobile Devices and Services, MobileHCI 2006

作者： Parhi, Pekka Karlson, Amy K. Bederson, Benjamin B. Media Team Oulu Department of Electrical and Information Engineering University of Oulu P.O. Box 4500 FIN-90014 Oulu Finland Human-Computer Interaction Lab. Computer Science Department University of Maryland College Park MD

ISBN: (纸本)1595933905

This paper describes a two-phase study conducted to determine optimal target sizes for one-handed thumb use of mobile handheld devices equipped with a touch-sensitive screen. Similar studies have provided recommendations for target sizes when using a mobile device with two hands plus a stylus, and interacting with a desktop-sized display with an index finger, but never for thumbs when holding a small device in a single hand. The first phase explored the required target size for single-target (discrete) pointing tasks, such as activating buttons, radio buttons or checkboxes. The second phase investigated optimal sizes for widgets used for tasks that involve a sequence of taps (serial), such as text entry. Since holding a device in one hand constrains thumb movement, we varied target positions to determine if performance depended on screen location. The results showed that while speed generally improved as targets grew, there were no significant differences in error rate between target sizes ≥ 9.6 mm in discrete tasks and targets ≥ 7.7 mm in serial tasks. Along with subjective ratings and the findings on hit response variability, we found that target size of 9.2 mm for discrete tasks and targets of 9.6 mm for serial tasks should be sufficiently large for one-handed thumb use on touchscreen-based handhelds without degrading performance and preference. Copyright 2006 ACM.

关键词： Fluorescent screens

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Ubiquitous drums: A tangible, wearable musical interface

Ubiquitous drums: A tangible, wearable musical interface

引用

28th Annual CHI Conference on human Factors in Computing Systems, CHI 2010

作者： Smus, Boris Gross, Mark D. Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh PA 15213 United States COmputational DEsign Lab. Carnegie Mellon University Pittsburgh PA 15213 United States

ISBN: (纸本)9781605589312

Drummers and non-drummers alike can often be seen making percussive gestures on their chests, knees and feet. Ubiquitous Drums enhances this experience by providing musical feedback for these and other gestures. This paper describes the implementation and evolution of this tangible, wearable musical instrument. © 2010 Copyright is held by the author/owner(s).

关键词： Musical instruments

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ButterflyNet: A mobile capture and access system for field biology research

ButterflyNet: A mobile capture and access system for field b...

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CHI 2006: Conference on human Factors in Computing Systems

作者： Yeh, Ron B. Liao, Chunyuan Klemmer, Scott R. Guimbretière, François Lee, Brian Kakaradov, Boyko Stamberger, Jeannie Paepcke, Andreas Stanford University HCI Group Computer Science Department Stanford CA 94305-9035 United States Human-Computer Interaction Lab. Department of Computer Science University of Maryland College Park MD 20742 United States Stanford University Biological Sciences Stanford CA 94305

ISBN: (纸本)1595931783

Through a study of field biology practices, we observed that biology fieldwork generates a wealth of heterogeneous information, requiring substantial lab.r to coordinate and distill. To manage this data, biologists leverage a diverse set of tools, organizing their effort in paper notebooks. These observations motivated ButterflyNet, a mobile capture and access system that integrates paper notes with digital photographs captured during field research. Through ButterflyNet, the activity of leafing through a notebook expands to browsing all associated digital photos. ButterflyNet also facilitates the transfer of captured content to spreadsheets, enabling biologists to share their work. A first-use study with 14 biologists found this system to offer rich data capture and transformation, in a manner felicitous with current practice. Copyright 2006 ACM.

关键词： Interactive computer systems

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