Journal of Robotics, Networking and Artificial Life

Volume 2, Issue 1, April 2015

1. Analysis of Asymmetric Mutation Model in Random Local Search

Hiroshi Furutani, Makoto Sakamoto, Yifei Du, Kenji Aoki
Pages: 1 - 4
In a standard Evolutionary Algorithms (EAs), one uses the same rate for mutations from bit 1 to bit 0 and its reverse direction. There are many reports that the asymmetric mutation model is a very powerful strategy in EAs to obtain better solutions more efficiently. In this paper, we report stochastic...

2. Facial Expression Recognition Using Facial Expression Intensity Characteristics of Thermal Image

Yasunari Yoshitomi, Taro Asada, Ryota Kato, Masayoshi Tabuse
Pages: 5 - 8
To develop a robot that understands human feeling, we propose a method for recognizing facial expressions. A video was analyzed by thermal image processing and the feature parameter of facial expression, which was extracted in the area of the mouth and jaw by a two-dimensional discrete cosine transform....

3. Prototype of a Supporting Tool to Generate Testing Communication Diagram

Tetsuro Katayama, Seiya Urata, Yohei Ogata, Yoshihiro Kita, Hisaaki Yamaba, Kentaro Aburada, Naonobu Okazaki
Pages: 9 - 12
This research has implemented a prototype of a supporting tool to generate testing communication diagram. The testing communication diagram helps a developer to understand where the software system is tested by a large quantity of test cases written in text, and it is generated by adding the information...

4. Attitude Reorientation of Spacecraft with Attitude Forbidden Zones

Xuhui Lu, Yingmin Jia
Pages: 13 - 16
This paper investigates an attitude reorientation control scheme of spacecraft, considering attitude forbidden zone and external disturbances. A novel potential barrier function is proposed with an attitude constraint term and a dynamical scaling term. Here the dynamical scaling term is synthesized with...

5. Postural Sway Response to Local Vibratory Stimulation in Young, Middle-aged and Elderly People in Standing Position

Ayaka Yamada, Eishi Nakamura, Noritaka Sato, Yoshifumi Morita, Tadashi Ito, Yoshihito Sakai, Kazunori Yamazaki
Pages: 17 - 21
We investigated the postural sway in response to local vibratory stimulation applied to young, middle-aged and elderly people in the standing position. For this purpose we developed a variable-frequency vibratory stimulation device and measured the postural sway using a gravicorder. As a result, when...

6. Error Recovery of Pick-and-Place Tasks in Consideration of Reusability of Planning

Akira Nakamura, Kazuyuki Nagata, Kensuke Harada, Natsuki Yamanobe
Pages: 22 - 25
Error recovery in robotic tasks is explored to enable robots to be used for complicated tasks. The authors’ error recovery processes make use of the concepts of both task stratification and error classification. In this paper, the reusability of planning in error recovery is verified by using the typical...

7. Synchronized Response to Grayscale Image Inputs in Chaotic Cellular Neural Network

Masayuki Fujiwara, Akihiro Yamaguchi, Masao Kubo
Pages: 26 - 29
In this study, the synchronized response in the chaotic cellular neural network for a grayscale visual stimulus was investigated in the viewpoint of neural coding. Simple gradation patterns were used as visual stimuli and the synchronized response was analyzed by the correlation of the spike firing times....

8. Distributed Terminal Backstepping control for Multi-Agent Euler-Lagrange Systems

Hu Chen, Seong-Ik Han, Jang-Myung Lee
Pages: 30 - 33
This paper presents a distributed terminal (finite-time) backstepping consensus control for multi-agent Euler-Lagrange systems. Terminal virtual error surfaces and virtual controls are proposed to guarantee the finite-time error consensus and formation convergence of a group of one-leader and multi-follower...

9. Developing a Dividual Model Using a Modular Neural Network for Human-Robot Interaction

Toshiyuki Tanaka, Kunikazu Kobayashi
Pages: 34 - 39
Currently, in the field of human-robot interaction (HRI), robots have a problem that can only interact the same at all times with humans. In this paper, therefore, we introduce the concept called a dividual and build a model of the dividual to grow through interactions with others. In addition, using...

10. Reinforcement Learning with Symbiotic Relationships for Multiagent Environments

Shingo Mabu, Masanao Obayashi, Takashi Kuremoto
Pages: 40 - 45
Multiagent systems, where many agents work together to achieve their objectives, and cooperative behaviors between agents need to be realized, have been widely studied In this paper, a new reinforcement learning framework considering the concept of “Symbiosis” in order to represent complicated relationships...

11. A modeling of collaboration mechanism of design process based on Channel Theory

Patchanee Patitad, Hidetsugu Suto
Pages: 46 - 49
Collaboration is one of the effective approaches that help us to share knowledge together and exchange ideas within team members. Sometimes, helpful new knowledge that is not held by the members emerges as a result of the collaboration. Such knowledge often contributes to get prime solutions in the collaboration...

12. Evaluation of a Narrative Discourse Generation System Based on the Concept of “Norm and Deviation”

Taisuke Akimoto, Takashi Ogata
Pages: 50 - 53
This paper deals with the verification of a narrative discourse system. The system automatically produces a variety of discourse structures from an inputted story structure through an iterative mutual action between a narrator and narratee mechanisms. We analyze a series of generated discourse structures...

13. Music Recommendation System through Internet for Improving Recognition Ability Using Collaborative Filtering and Impression Words

Yasunari Yoshitomi, Taro Asada, Ryota Kato, Yuuki Yoshimitsu, Masayoshi Tabuse, Noriaki Kuwahara, Jin Narumoto
Pages: 54 - 59
In our previously reported system, after the first music recommendation process using collaborative filtering was terminated, the second recommendation process based on the scores for impression words finds the most similar music to the successfully recommended music among music that has not yet been...

14. An Authentication Method Independent of Tap Operation on the Touchscreen of a Mobile Device

Hisaaki Yamaba, So Nagatomo, Kentaro Aburada, Shinichiro Kubota, Tetsuro Katayama, Mirang Park, Naonobu Okazaki
Pages: 60 - 63
At the present time, mobile devices such as tablet-type PCs and smart phones have widely penetrated into our daily lives. Therefore, an authentication method that prevents shoulder surfing is needed. We are investigating a new user authentication method for mobile devices that uses surface electromyogram...

15. A method of enclosing a target by robot swarm with limited range homogeneous signal emitter

Masao Kubo, Hiroshi Sato, Akihiro Yamaguchi, Akira Namatame, Eugene Kitamura
Pages: 64 - 68
This paper presents a robot swarm model to enclose a target. The robots use information of the target and each of their neighbors. Every robot has its own, standard torch-like signal emitter and they can observe the sum of the intensity of their torches. In this paper, the robots identify their nearest...