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Displaying 1-37 out of 37 total
A Smart Kitchen for Nutrition-Aware Cooking
Found in: IEEE Pervasive Computing
By Jen-Hao Chen, Peggy Pei-Yu Chi, Hao-Hua Chu, Cheryl Chia-Hui Chen, Polly Huang
Issue Date:October 2010
pp. 58-65
Healthy home cooking is essential for maintaining long-term health. Although most family cooks are willing to learn healthy cooking, they often have difficulty applying this knowledge. A smart kitchen with pervasive computing technology provides nutritiona...
 
ConvenienceProbe: A Phone-Based System for Retail Trade-Area Analysis
Found in: IEEE Pervasive Computing
By Chuang-Wen You,Hsin-Liu Cindy Kao,Bo-Jhang Ho,Yu-Han Tiffany Chen,Wei-Fehng Wang,Lien-Ti Bei,Hao-Hua Chu,Ming-Syan Chen
Issue Date:January 2014
pp. 64-71
Systematically and quantitatively determining patterns in consumer flow is an important problem in marketing research. Identifying these patterns can facilitate an understanding of where and when consumers purchase products and services at physical retail ...
 
Using Mobile Phones to Monitor Shopping Time at Physical Stores
Found in: IEEE Pervasive Computing
By Chuang-Wen You, Chih-Chiang Wei, Yi-Ling Chen, Hao-hua Chu, Ming-Syan Chen
Issue Date:April 2011
pp. 37-43
<p>A phone-based shopping tracker transforms the problem of monitoring shopping time into a classification problem. It uses motif groups to identify movement trajectories based on spatial and temporal features embedded in each motif.</p>
 
Accuracy Performance Analysis between War Driving and War Walking in Metropolitan Wi-Fi Localization
Found in: IEEE Transactions on Mobile Computing
By Arvin Wen Tsui, Wei-Cheng Lin, Wei-Ju Chen, Polly Huang, Hao-Hua Chu
Issue Date:November 2010
pp. 1551-1562
Wi-Fi ingerprint-based localization is currently the most promising approach to building metropolitan-scale localization systems for both indoor and outdoor environments. A Wi-Fi fingerprint localization system makes use of a radio map that contains Wi-Fi ...
 
Pervasive Computing in Play-Based Occupational Therapy for Children
Found in: IEEE Pervasive Computing
By Jin-Ling Lo, Pei-yu (Peggy) Chi, Hao-Hua Chu, Hsin-Yen Wang, Seng-Cho T. Chou
Issue Date:July 2009
pp. 66-73
Pervasive computing technologies can help parents and occupational therapists modify behaviors in children. In occupational therapy, an effective means to motivate a change in a child's behavior is by designing playful activities that leverage the child's ...
 
PipeProbe: Mapping Spatial Layout of Indoor Water Pipelines
Found in: Mobile Data Management, IEEE International Conference on
By Yu-Chen Chang, Tsung-Te Lai, Hao-Hua Chu, Polly Huang
Issue Date:May 2009
pp. 391-392
We propose PipeProbe, a mobile sensor system for mapping water pipelines hidden inside cement walls or under floor coverings. PipeProbe works by dropping a tiny sensor capsule into the source of the water pipelines. As the PipeProbe capsule traverses the p...
 
Energy-Efficient Boundary Detection for RF-Based Localization Systems
Found in: IEEE Transactions on Mobile Computing
By Tsung-Han Lin, Polly Huang, Hao-Hua Chu, Chuang-Wen You
Issue Date:January 2009
pp. 29-40
Boundary detection is a form of location-aware services that aims at detecting targets crossing certain critical regions. Typically, a lower location sampling rate contributes to a lower level of energy consumption but, in the meantime, delays the detectio...
 
Enabling Energy-Efficient and Quality Localization Services
Found in: Pervasive Computing and Communications Workshops, IEEE International Conference on
By Tsung-Han Lin, Polly Huang, Hao-hua Chu, Hsing-Hau Chen, Ju-Peng Chen
Issue Date:March 2006
pp. 624-627
Recent localization research has focused on improving the accuracy of pinpointing the physical location of a target. We think that the energy efficiency and the quality of the localization services (QoLS) are equally important properties of localization sy...
 
Challenges: Wireless Web Services
Found in: Parallel and Distributed Systems, International Conference on
By Hao-hua Chu, Chuang-wen You, Chao-ming Teng
Issue Date:July 2004
pp. 657
This paper describes the challenges of adapting existing web-service architecture to the wireless environment. It presents a new, wireless, web-service architecture based on the smart client model that can address some of the fundamental differences betwee...
 
Dynamic Multi-Path Communication for Video Traffic
Found in: Hawaii International Conference on System Sciences
By Hao-hua Chu, Klara Nahrstedt
Issue Date:January 1997
pp. 695
<p>Video-on-Demand applications emerge on campus- wide networks. Compressed video streams pass switches which do not have any bandwidth reservation mechanism, nor any other mechanism against congestion.</p> <p>The switches, shared among v...
   
MemoIcon: using everyday objects as physical icons
Found in: ACM SIGGRAPH ASIA 2009 Art Gallery & Emerging Technologies: Adaptation (SIGGRAPH ASIA '09)
By Bing-Yu Chen, Hao-Hua Chu, Hung-Jung Lin, Kai-Yin Cheng, Ming-Yang Yu, Rong-Hao Liang, Rung-Huei Liang, Sy-Yen Kuo, Yu-Ming Chu
Issue Date:December 2009
pp. 78-78
MemoIcon increases productivity with a new interaction method based on pattern recognition and multi-touch techniques. It easily binds virtual information to everyday real objects and transforms them into physical icons that embody virtual tasks as tangibl...
     
CPU Service Classes for Multimedia Applications
Found in: Multimedia Computing and Systems, International Conference on
By Hao-hua Chu, Klara Nahrstedt
Issue Date:June 1999
pp. 9296
We present the design, implementation, and experimental results of our soft real time (SRT) system for multimedia applications on top of general purpose UNIX environment. The SRT system supports multiple CPU service classes for the real time processes base...
 
Exponential quantization: user-centric rate control for skype calls
Found in: Proceedings of the ACM SIGCOMM 2013 conference on SIGCOMM (SIGCOMM '13)
By Chien-Nan Chen, Cing-Yu Chu, Hao-Hua Chu, Polly Huang, Su-Ling Yeh, Yu-Chuan Yen
Issue Date:August 2013
pp. 551-552
As Skype has become popular and a profitable business, the long-standing problem of how to deliver Skype calls deserves a serious revisit from an economic viewpoint. This study proposes a rate control mechanism for Skype calls that satisfies more users and...
     
Measuring the perceptual quality of Skype sources
Found in: Proceedings of the 2012 ACM SIGCOMM workshop on Measurements up the stack (W-MUST '12)
By Chien-nan Chen, Cing-yu Chu, Hao-hua Chu, Polly Huang, Su-ling Yeh
Issue Date:August 2012
pp. 1-6
The success of Skype has inspired a generation of peer-to-peer-based solutions for real-time multimedia services over the Internet. However, there lacks still a robust metric quantifying the perceptual quality of a Skype call. The widely-used PESQ (Percept...
     
Modeling and simulation comparison of two time synchronization protocols
Found in: Proceedings of the 3nd ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks (PM2HW2N '08)
By Hao-hua Chu, Jr-ben Tian, Keng-hao Chang, Polly Huang, Tsung-Han Lin
Issue Date:October 2008
pp. 117-123
To infer correctly application semantics, sensor network applications often need accurate times on observations that are reported from distributed sensor nodes. Since the nodes' local clocks can go out-of-sync due to clock drifts, a networked time synchron...
     
Enabling nutrition-aware cooking in a smart kitchen
Found in: CHI '07 extended abstracts on Human factors in computing systems (CHI '07)
By Bing-Yu Chen, Hao-hua Chu, Jen-hao Chen, Pei-yu Chi
Issue Date:April 2007
pp. 2333-2338
We present a smart kitchen that can enhance the traditional meal preparation and cooking process by raising awareness of the nutrition facts in food ingredients that go into a meal. The goal is to promote healthy cooking. Our smart kitchen is augmented wit...
     
Sensing fork and persuasive game for improving eating behavior
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Azusa Kadomura, Cheng-Yuan Li, Hao-Hua Chu, Itiro Siio, Koji Tsukada, Yen-Chang Chen
Issue Date:September 2013
pp. 71-74
We present a fork-type sensing device called the Sensing Fork that detects the eating behavior of children (food choice and eating actions), and a smartphone game to address children's eating problems based on their eating behavior. This paper describes th...
     
Sensor-embedded teeth for oral activity recognition
Found in: Proceedings of the 17th annual international symposium on International symposium on wearable computers (ISWC '13)
By Cheng-Yuan Li, Hao-hua Chu, Polly Huang, Wei-Ju Chen, Yen-Chang Chen
Issue Date:September 2013
pp. 41-44
This paper presents the design and implementation of a wearable oral sensory system that recognizes human oral activities, such as chewing, drinking, speaking, and coughing. We conducted an evaluation of this oral sensory system in a laboratory experiment ...
     
Sensing fork: eating behavior detection utensil and mobile persuasive game
Found in: CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13)
By Azusa Kadomura, Cheng-Yuan Li, Hao-hua Chu, Itiro Siio, Koji Tsukada, Yen-Chang Chen
Issue Date:April 2013
pp. 1551-1556
We propose a fork-type sensing device, Sensing Fork, which detects children's eating behavior (eating actions and chosen food) and a smartphone game to address children's eating problems. This paper describes the design and implementation of the Sensing Fo...
     
A phone-based support system to assist alcohol recovery
Found in: CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13)
By Allen C. Lin, Chi-An Wang, Chuang-Wen You, Chun-Hung Pan, Chun-Mao Liang, Cindy Hsin-Liu Kao, Hao-Hua Chu, Kuo-Chen Wang, Ming-Chyi Huang, Ming-Tung Hong
Issue Date:April 2013
pp. 529-534
This study explores the use of mobile phones as a normal life support system that connects alcohol addict patients to their addiction physiatrists after they leave a rehabilitation center. This paper presents the design and implementation of this phone-bas...
     
Phone-based gait analysis to detect alcohol usage
Found in: Proceedings of the 2012 ACM Conference on Ubiquitous Computing (UbiComp '12)
By Allan C. Lin, Bo-Jhang Ho, Hao-Hua Chu, Hsin-Liu (Cindy) Kao
Issue Date:September 2012
pp. 661-662
This study proposes a phone-based system to detect the gait anomalies of a person waking under the influence of alcohol. This phone-based system can sense a person's alcohol usage and record the location/time context. This data can help identify problem dr...
     
Listen-to-nose: a low-cost system to record nasal symptoms in daily life
Found in: Proceedings of the 2012 ACM Conference on Ubiquitous Computing (UbiComp '12)
By Hao-Hua Chu, Kuo-Cheng Wang, Nan-Chen Chen
Issue Date:September 2012
pp. 590-591
This paper proposes Listen-to-Nose, a phone-based system that detects and records when and where a person's nose-related symptoms, such as sneezing and runny nose, occur in everyday settings. It is hoped that this system can be used to collect reference da...
     
BlimpProbe: an aerial surveillance platform
Found in: Proceedings of the 11th international conference on Information Processing in Sensor Networks (IPSN '12)
By Cheng-Yuan Li, Hao-Hua Chu
Issue Date:April 2012
pp. 131-132
This paper proposes a blimp-based vehicular sensing system, called BlimpProbe, which travels above ground to perform environmental monitoring. We describe an application in atmosphere science that is suitable for this blimp-based sensing system.
     
TriopusNet: automating wireless sensor network deployment and replacement in pipeline monitoring
Found in: Proceedings of the 11th international conference on Information Processing in Sensor Networks (IPSN '12)
By Kuei-Han Li, Ted Tsung-Te Lai, Wei-Ju Chen, Hao-Hua Chu, Polly Huang
Issue Date:April 2012
pp. 61-72
This study presents TriopusNet, a mobile wireless sensor network system for autonomous sensor deployment in pipeline monitoring. TriopusNet works by automatically releasing sensor nodes from a centralized repository located at the source of the water pipel...
     
HeatProbe: a thermal-based power meter for accounting disaggregated electricity usage
Found in: Proceedings of the 13th international conference on Ubiquitous computing (UbiComp '11)
By Bo-Jhang Ho, Chuang-Wen You, Hao-Hua Chu, Hsin-Liu Cindy Kao, Ming-Syan Chen, Nan-Chen Chen
Issue Date:September 2011
pp. 55-64
To promote energy-saving behavior, disaggregating electricity usage is critical for increasing consumer awareness of energy usage behavior. This study proposes HeatProbe, a thermal-based power meter system that uses thermal imaging to track disaggregated a...
     
PipeProbe: a mobile sensor droplet for mapping hidden pipeline
Found in: Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems (SenSys '10)
By Hao-hua Chu, Polly Huang, Tsung-te (Ted) Lai, Yu-han (Tiffany) Chen
Issue Date:November 2010
pp. 113-126
This paper presents PipeProbe, a mobile sensor system for determining the spatial topology of hidden water pipelines behind walls. PipeProbe works by dropping a tiny wireless sensor capsule into the source of the water pipelines. As the PipeProbe capsule t...
     
Convenience probe: a participatory sensing tool to collect large-scale consumer flow behaviors
Found in: Proceedings of the 12th ACM international conference adjunct papers on Ubiquitous computing - Adjunct (Ubicomp '10 Adjunct)
By Chih-Chiang Wei, Chuang-Wen You, Hao-Hua Chu, Jya-Cheng Hu, Lien-Ti Bei, Ming-Syan Chen, Wei-Fehng Wang, Yu-Han Chen
Issue Date:September 2010
pp. 441-442
This paper proposes Convenience Probe, a participatory sensing tool to collect large-scale consumer flow behaviors from everyday mobile phones. We hope to use Convenience Probe to collect real consumer flow data that will help convenience store chains in s...
     
PipeProbe: mapping hidden water pipelines
Found in: Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems (SenSys '09)
By Hao-hua Chu, Polly Huang, Tsung-te (Ted) Lai, Yu-han (Tiffany) Chen
Issue Date:November 2009
pp. 375-376
We propose PipeProbe, a mobile sensor system for mapping hidden water pipelines inside cement walls or under floor coverings. PipeProbe works by dropping a sensor capsule into the source of the water pipelines. As the PipeProbe capsule traverses the pipeli...
     
Playful bottle: a mobile social persuasion system to motivate healthy water intake
Found in: Proceedings of the 11th international conference on Ubiquitous computing (Ubicomp '09)
By Cheryl Chia-Hui Chen, Fei-Hsiu Hsiao, Hao-Hua Chu, Ju-Chun Ko, Meng-Chieh Chiu, Shih-Ping Chang, Yu-Chen Chang
Issue Date:September 2009
pp. 185-194
This study of mobile persuasion system explores the use of a mobile phone, when attached to an everyday object used by an everyday behavior, becomes a tool to sense and influence that behavior. This mobile persuasion system, called Playful Bottle system, m...
     
Double-side multi-touch input for mobile devices
Found in: Proceedings of the 27th international conference extended abstracts on Human factors in computing systems (CHI EA '09)
By Chi-wen Euro Chen, Erh-li Early Shen, Hao-hua Chu, Sung-sheng Daniel Tsai, Yung-jen Jane Hsu
Issue Date:April 2009
pp. 1-4
We present a new mobile interaction model, called double-side multi-touch, based on a mobile device that receives simultaneous multi-touch input from both the front and the back of the device. This new double-sided multi-touch mobile interaction model enab...
     
SmartPlayer: user-centric video fast-forwarding
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Bing-Yu Chen, Hao-Hua Chu, Kai-Yin Cheng, Sheng-Jie Luo
Issue Date:April 2009
pp. 1-4
In this paper we propose a new video interaction model called adaptive fast-forwarding to help people quickly browse videos with predefined semantic rules. This model is designed around the metaphor of scenic car driving, in which the driver slows down nea...
     
Spinning beacons for precise indoor localization
Found in: Proceedings of the 6th ACM conference on Embedded network sensor systems (SenSys '08)
By Hao-Hua Chu, Ho-lin Chang, Jr-ben Tian, Polly Huang, Tsung-Te Lai
Issue Date:November 2008
pp. 1-2
This work proposes the novel use of spinning beacons for precise indoor localization. The proposed "SpinLoc" (Spinning Indoor Localization) system uses "spinning" (i.e., rotating) beacons to create and detect predictable and highly distinguishable Doppler ...
     
Chromirror: a real-time interactive mirror for chromatic and color-harmonic dressing
Found in: CHI '08 extended abstracts on Human factors in computing systems (CHI '08)
By Chueh-Min Cheng, Hao-Hua Chu, Meng-Fang Chung, Ming Ouhyoung, Ming-Yang Yu, Yung-Yu Chuang
Issue Date:April 2008
pp. 49-54
This study presents the "ChroMirror" system, a digital mirror imaging system which helps users select appropriate clothing color combinations. By digitally rendering a mirror image of the user wearing clothing in different color-harmonic combinations, this...
     
Playful toothbrush: ubicomp technology for teaching tooth brushing to kindergarten children
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Chao-Ju Huang, Hao-Hua Chu, Hsin-Yen Wang, Jin-Ling Lo, Nan-Yi Hsu, Pei-Yu Chi, Ya-Lin Hsieh, Yu-Chen Chang
Issue Date:April 2008
pp. 49-54
This case study in UbiComp technology and design presents a "Playful Toothbrush" system for assisting parents and teachers to motivate kindergarten children to learn proper and thorough brushing skills. The system includes a vision-based motion tracker tha...
     
A hybrid routing approach for opportunistic networks
Found in: Proceedings of the 2006 SIGCOMM workshop on Challenged networks (CHANTS '06)
By Chen-Hung Yu, Hao-hua Chu, Ling-Jyh Chen, Tony Sun, Yung-Chih Chen
Issue Date:September 2006
pp. 213-220
With wireless networking technologies extending into the fabrics of our working and operating environments, proper handling of intermittent wireless connectivity and network disruptions is of significance. As the sheer number of potential opportunistic app...
     
Identifying MMORPG bots: a traffic analysis approach
Found in: Proceedings of the 2006 ACM SIGCHI international conference on Advances in computer entertainment technology (ACE '06)
By Chin-Laung Lei, Hao-Hua Chu, Jhih-Wei Jiang, Kuan-Ta Chen, Polly Huang, Wen-Chin Chen
Issue Date:June 2006
pp. 4-es
MMORPGs have become extremely popular among network gamers. Despite their success, one of MMORPG's greatest challenges is the increasing use of game bots, i.e., auto-playing game clients. The use of game bots is considered unsportsmanlike and is therefore ...
     
Design and evaluation of mProducer: a mobile authoring tool for personal experience computing
Found in: Proceedings of the 3rd international conference on Mobile and ubiquitous multimedia (MUM '04)
By Chao-Ming (James) Teng, Chon-In Wu, Hao-hua Chu, Jane Yung-jen Hsu, Yi-Chao Chen
Issue Date:October 2004
pp. 141-148
Personal experience computing is about computing support for recording, storing, retrieving, editing, analyzing, and sharing of personal experiences. In this paper, we present our design, implementation and evaluation of a mobile authoring tool called mPro...
     
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