Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Koji Zettsu is active.

Publication


Featured researches published by Koji Zettsu.


Neural Computing and Applications | 2016

Dynamically pre-trained deep recurrent neural networks using environmental monitoring data for predicting PM2.5

Bun Theang Ong; Komei Sugiura; Koji Zettsu

Fine particulate matter (


computer software and applications conference | 2014

Managing Heterogeneous Sensor Data on a Big Data Platform: IoT Services for Data-Intensive Science

Sulayman K. Sowe; Takashi Kimata; Mianxiong Dong; Koji Zettsu


knowledge acquisition, modeling and management | 2006

Towards knowledge management based on harnessing collective intelligence on the web

Koji Zettsu; Yasushi Kiyoki

\hbox {PM}_{2.5}


web and wireless geographical information systems | 2009

Moving Phenomenon: Aggregation and Analysis of Geotime-Tagged Contents on the Web

Kyoung Sook Kim; Koji Zettsu; Yutaka Kidawara; Yasushi Kiyoki


semantics, knowledge and grid | 2008

Approaching the Interconnection of Heterogeneous Knowledge Bases on a Knowledge Grid

Takafumi Nakanishi; Koji Zettsu; Yutaka Kidawara; Yasushi Kiyoki

PM2.5) has a considerable impact on human health, the environment and climate change. It is estimated that with better predictions, US


international conference on big data | 2014

Dynamic pre-training of Deep Recurrent Neural Networks for predicting environmental monitoring data

Bun Theang Ong; Komei Sugiura; Koji Zettsu

9 billion can be saved over a 10-year period in the USA (State of the science fact sheet air quality. http://www.noaa.gov/factsheets/new, 2012). Therefore, it is crucial to keep developing models and systems that can accurately predict the concentration of major air pollutants. In this paper, our target is to predict


It Professional | 2016

Cyber-Physical-Human Systems: Putting People in the Loop

Sulayman K. Sowe; Eric D. Simmon; Koji Zettsu; Frederic J. de Vaulx; Irena Bojanova


intelligent robots and systems | 2015

Rospeex: A cloud robotics platform for human-robot spoken dialogues

Komei Sugiura; Koji Zettsu

\hbox {PM}_{2.5}


symposium on reliable distributed systems | 2014

Service-Controlled Networking: Dynamic In-Network Data Fusion for Heterogeneous Sensor Networks

Mianxiong Dong; Takashi Kimata; Koji Zettsu


It Professional | 2015

Designing a Cyber-Physical Cloud Computing Architecture

Eric D. Simmon; Sulayman K. Sowe; Koji Zettsu

PM2.5 concentration in Japan using environmental monitoring data obtained from physical sensors with improved accuracy over the currently employed prediction models. To do so, we propose a deep recurrent neural network (DRNN) that is enhanced with a novel pre-training method using auto-encoder especially designed for time series prediction. Additionally, sensors selection is performed within DRNN without harming the accuracy of the predictions by taking advantage of the sparsity found in the network. The numerical experiments show that DRNN with our proposed pre-training method is superior than when using a canonical and a state-of-the-art auto-encoder training method when applied to time series prediction. The experiments confirm that when compared against the

Collaboration


Dive into the Koji Zettsu's collaboration.

Top Co-Authors

Avatar

Yutaka Kidawara

National Institute of Information and Communications Technology

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Takafumi Nakanishi

National Institute of Information and Communications Technology

View shared research outputs
Top Co-Authors

Avatar

Komei Sugiura

National Institute of Information and Communications Technology

View shared research outputs
Top Co-Authors

Avatar

Sulayman K. Sowe

National Institute of Information and Communications Technology

View shared research outputs
Top Co-Authors

Avatar

Rong Zhang

East China Normal University

View shared research outputs
Top Co-Authors

Avatar

Kyoung Sook Kim

National Institute of Information and Communications Technology

View shared research outputs
Top Co-Authors

Avatar

Kyoung-Sook Kim

National Institute of Information and Communications Technology

View shared research outputs
Top Co-Authors

Avatar

Minh-Son Dao

National Institute of Information and Communications Technology

View shared research outputs
Researchain Logo
Decentralizing Knowledge