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Displaying 1-26 out of 26 total
WristSense: Wrist-worn sensor device with camera for daily activity recognition
Found in: Pervasive Computing and Communications Workshops, IEEE International Conference on
By Takuya Maekawa,Yasue Kishino,Yutaka Yanagisawa,Yasushi Sakurai
Issue Date:March 2012
pp. 510-512
This demo paper describes our daily activity sensing and recognition system with a wrist-worn sensor device called WristSense. The wrist-worn device is equipped with an accelerometer and camera, and can send the sensor data to a Bluetooth-enabled smart pho...
 
Unsupervised Activity Recognition with User's Physical Characteristics Data
Found in: Wearable Computers, IEEE International Symposium
By Takuya Maekawa, Shinji Watanabe
Issue Date:June 2011
pp. 89-96
This paper proposes an activity recognition method that models an end user's activities without using any labeled/unlabeled acceleration sensor data obtained from the user. Our method employs information about the end user's physical characteristics such a...
 
Labeling-based knowledge construction for real-world event understanding
Found in: Cognitive Informatics, IEEE International Conference on
By Koji Kamei,Yutaka Yanagisawa,Takuya Maekawa,Yasue Kishino,Yasushi Sakurai,Takeshi Okadome
Issue Date:June 2009
pp. 116-124
A sensor networked environment is capable of observing real-world phenomena as sensor readings, however, there are difficulties in understanding real-world ‘events’ such as activities of daily life occurring in the environment. We propose an incremental mo...
 
Object-Blog System for Environment-Generated Content
Found in: IEEE Pervasive Computing
By Takuya Maekawa, Yutaka Yanagisawa, Yasue Kishino, Koji Kamei, Yasushi Sakurai, Takeshi Okadome
Issue Date:October 2008
pp. 20-27
The Object-Blog service application automatically converts raw sensor data to environment-generated content (EGC), including texts, graphs, and figures. This conversion facilitates data searching and browsing. Generated content can serve several purposes, ...
 
A Distributed Inference System on Sensor Nodes using Neighbors' Context Data
Found in: IEEE International Workshop on Databases for Next Generation Researchers
By Takeshi Kanda, Yutaka Yanagisawa, Takuya Maekawa, Michita Imai, Hideyuki Kawashima, Takeshi Okadome
Issue Date:April 2007
pp. 116-121
No summary available.
 
Profile-based Query Routing in a Mobile Social Network
Found in: Mobile Data Management, IEEE International Conference on
By Hirokazu Tomiyasu, Takuya Maekawa, Takahiro Hara, Shojiro Nishio
Issue Date:May 2006
pp. 105
Recently, there has been an increasing interest in a social network. In a social network, nodes and links represent participants and their friendships, respectively. We have designed and implemented a query propagation mechanism and its applications to rea...
 
GeoNote.net: A Social Network System for Geographic Information
Found in: Mobile Data Management, IEEE International Conference on
By Kotaro Nakayama, Takuya Maekawa, Hirokazu Tomiyasu, Takahiro Hara, Shojiro Nishio
Issue Date:May 2006
pp. 144
GeoNote.net is a social network system which allows users to share geographic information among their friends network. The system has various notable features and uses several key technologies such as social network construction methods, security for perso...
 
Two Approaches to Browse LargeWeb Pages Using Mobile Devices
Found in: Mobile Data Management, IEEE International Conference on
By Takuya Maekawa, Takahiro Hara, Shojiro Nishio
Issue Date:May 2006
pp. 52
In this paper, we introduce two our approaches to browse large Web pages designed for desktop PCs using mobile devices with small screens and poor input interfaces. In the first approach, multiple mobile users collaboratively browse large Web pages. We cal...
 
A Collaborative Web Browsing System for Multiple Mobile Users
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Takuya Maekawa, Takahiro Hara, Shojiro Nishio
Issue Date:March 2006
pp. 22-35
In mobile computing environments, handheld devices with low functionality restrict the services provided for mobile users. We propose a new concept of collaborative browsing, where mobile users collaboratively browse web pages designed for desktop PC. In c...
 
Content Description and Partitioning Methods for Collaborative Browsing by Multiple Mobile Users
Found in: Database and Expert Systems Applications, International Workshop on
By Takuya Maekawa, Toshiaki Uemukai, Takahiro Hara, Shojiro Nishio
Issue Date:August 2005
pp. 1068-1072
In a mobile computing environment, low functionality of handheld devices restricts services provided for mobile users. We have proposed a concept of collaborative browsing where mobile users collaboratively browse a rich Web page designed for desktop PCs t...
 
Social Network Applications using Cellular Phones with E-mail Function
Found in: Data Engineering Workshops, 22nd International Conference on
By Hirokazu Tomiyasu, Takuya Maekawa, Takahiro Hara, Shojiro Nishio
Issue Date:April 2005
pp. 1253
Recently, there has been an increasing interest in social networking, in which users can form new relationships between friends by introducing friends with each other. In this paper, we describe the design and implementation of a query propagation mechanis...
 
A Java-Based Information Browsing System in a Remote Display Environment
Found in: E-Commerce Technology, IEEE International Conference on
By Takuya Maekawa, Toshiaki Uemukai, Takahiro Hara, Shojiro Nishio
Issue Date:July 2004
pp. 342-346
In this paper, we describe our design and implementation of an information browsing system using Java-based cellular phones in a remote display environment which we have proposed. In this system, an application on a remote display displays various informat...
 
Contact-based Notation for Describing Rules on Sensor Nodes
Found in: Mobile Data Management Workshops, 2008 Ninth International Conference on
By Takeshi Kanda, Yutaka Yanagisawa, Michita Imai, Yasue Kishino, Takuya Maekawa, Takeshi Okadome
Issue Date:April 2008
pp. 159-165
In a ubiquitous computing environment, small computers attached to physical objects are required to send sensor data to many other nodes on a narrowband wireless network to provide various types of context-aware services. To reduce the cost of sending sens...
 
Sharing training data among different activity classes
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Quan Kong, Takuya Maekawa
Issue Date:September 2013
pp. 701-712
We propose a new activity recognition system for the daily activity by using a generative/discriminative hybrid model that can learn an activity classification model with small quantities of training data by sharing training data among different activity c...
     
A hybrid unsupervised/supervised model for group activity recognition
Found in: Proceedings of the 17th annual international symposium on International symposium on wearable computers (ISWC '13)
By Takuya Maekawa, Tomoya Hirano
Issue Date:September 2013
pp. 21-24
The new method proposed here recognizes activities performed by a group of users (e.g., attending a meeting, playing sports, and participating in a party) by using sensor data obtained from the users. Note that such group activities (GAs) have characterist...
     
Detecting and correcting WiFi positioning errors
Found in: Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing (UbiComp '13)
By Quan Kong, Takuya Maekawa, Yuki Tsuda
Issue Date:September 2013
pp. 777-786
Recent advances in GPS and WiFi-based positioning technologies for mobile phones have triggered many location-based services. However, GPS positioning quickly drains a phone's battery and cannot be used indoors. On the other hand, WiFi positioning provides...
     
Context-aware web search in ubiquitous sensor environments
Found in: ACM Transactions on Internet Technology (TOIT)
By Koji Kamei, Takuya Maekawa, Yasue Kishino, Yasushi Sakurai, Yutaka Yanagisawa, Takeshi Okadome
Issue Date:January 2012
pp. 1-23
This article proposes a new concept for a context-aware Web search method that automatically retrieves a webpage related to the daily activity that a user currently is engaged in and displays the page on nearby Internet-connected home appliances such as te...
     
Interactive story creation for knowledge acquisition
Found in: Proceeding of the 5th ACM/IEEE international conference on Human-robot interaction (HRI '10)
By Kenji Mase, Shohei Yoshioka, Shoji Kajita, Takuya Maekawa, Yasushi Hirano
Issue Date:March 2010
pp. 131-132
This paper proposes an agent system that semi-automatically creates stories about daily events detected by ubiquitous sensors. These stories are knowledge of inhabitants' daily lives and it may be useful for human-friendly agent. Story flows in daily lives...
     
Tearable: an experience to sense infinite paper tearing
Found in: ACM SIGGRAPH ASIA 2009 Art Gallery & Emerging Technologies: Adaptation (SIGGRAPH ASIA '09)
By Fumio Kishino, Keisuke Takamoto, Kiyotaka Tamada, Takashi Maeda, Takuya Maekawa, Yoshifumi Kitamura, Yuichi Itoh
Issue Date:December 2009
pp. 86-86
The tearing action is common in everyday life. One purpose of this action is to suppress data, as in a paper shredder. Tearing can also be an enjoyable method of stress reduction. In every case, tearing is not repeatable in real life. It is irreversible. B...
     
Tearable: haptic display that presents a sense of tearing real paper
Found in: Proceedings of the 16th ACM Symposium on Virtual Reality Software and Technology (VRST '09)
By Fumio Kishino, Keisuke Takamoto, Kiyotaka Tamada, Takashi Maeda, Takuya Maekawa, Yoshifumi Kitamura, Yuichi Itoh
Issue Date:November 2009
pp. 27-30
We propose a novel interface called Tearable that allows users to continuously experience the real sense of tearing paper. To provide such a real sense, we measured the actual vibration data of tearing a piece of real paper and analyzed them. Based on this...
     
Web searching for daily living
Found in: Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval (SIGIR '09)
By Koji Kamei, Takeshi Okadome, Takuya Maekawa, Yasue Kishino, Yasushi Sakurai, Yutaka Yanagisawa
Issue Date:July 2009
pp. 435-435
The new concept proposed in this paper is a query free web search that automatically retrieves a web page including information related to the daily activity that we are currently engaged in for automatically displaying the page on Internet-connected domes...
     
MADO interface: a window like a tangible user interface to look into the virtual world
Found in: Proceedings of the 3rd International Conference on Tangible and Embedded Interaction (TEI '09)
By Fumio Kishino, Norifumi Kawai, Takuya Maekawa, Yoshifumi Kitamura, Yuichi Itoh
Issue Date:February 2009
pp. 118-125
"MADO Interface" is a tangible user interface consisting of a compact touch-screen display and physical blocks. "MADO" means "window" in Japanese, and MADO Interface is utilized as the real window into the virtual world. Users construct a physical object b...
     
Web page retrieval in ubiquitous sensor environments
Found in: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval (SIGIR '08)
By Koji Kamei, Takeshi Okadome, Takuya Maekawa, Yasue Kishino, Yasushi Sakurai, Yutaka Yanagisawa
Issue Date:July 2008
pp. 2-2
This paper proposes new concept of query free web search for daily living. We ordinarily benefit from additional information about our daily activities that we are currently engaged in. When washing a coffee maker, for example, we receive the benefit if we...
     
Towards environment generated media: object-participation-type weblog in home sensor network
Found in: Proceedings of the 16th international conference on World Wide Web (WWW '07)
By Takeshi Okadome, Takuya Maekawa, Yutaka Yanagisawa
Issue Date:May 2007
pp. 1267-1268
The environment generated media (EGM) are defined here as being generated from a massive amount of and/or incomprehensible environmental data by compressing them into averages or representative values and/or by converting them into such user-friendly media...
     
Image classification for mobile web browsing
Found in: Proceedings of the 15th international conference on World Wide Web (WWW '06)
By Shojiro Nishio, Takahiro Hara, Takuya Maekawa
Issue Date:May 2006
pp. 43-52
It is difficult for users of mobile devices such as cellular phones equipped with a small screen and a poor input interface to browse Web pages designed for desktop PCs with large displays. Many studies and commercial products have tried to solve this prob...
     
A web browsing system based on adaptive presentation of web contents for cellular phones
Found in: Proceedings of the 2006 international cross-disciplinary workshop on Web accessibility (W4A): Building the mobile web: rediscovering accessibility? (W4A)
By Shojiro Nishio, Takahiro Hara, Takuya Maekawa, Toshiaki Uemukai, Yuki Arase
Issue Date:May 2006
pp. 86-89
Cellular phones have already been widely used to access the Web. However, most existing Web pages are designed for desktop PCs, and thus, it is inconvenient to browse these large Web pages on a cellular phone with a small screen and poor interfaces. Users ...
     
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