Artificial Life and Robotics

The project "Informational system for management of flood and land slide disaster areas using a distributed heterogeneous robotic team" was initialized within international e-ASIA Joint Research Program and gathered research teams from Japan, ...

This paper proposes a novel method to design a robot by simultaneously improving its morphology and controller. The number of rigid parts of the robot and the layout of joints connecting them are represented by a rooted tree, which is called a ...

Users and operators of swarms will, in the future, need to monitor the operations of swarms in a distributed way, without explicitly tracking every agent, and without the need for significant infrastructure or set up. Here we present a method for ...

This paper introduces a visual landmark for Japanese wood ants. The landmark has different patterns when viewed from an observing angle. Individual foragers learnt a food position related to a pattern of the landmark. During the training phase, ...

This paper aims to develop a self-healing mechanism that can mimic the repair in creatures through blood-coagulation. When creatures are injured, blood platelets gather in the tear of skin to form a temporary seal to cover the break in the vessel ...

Establishing a large adaptive connected network for decentralized swarms is useful for their behavior to share information about the working environment. A hard-coded implementation is time-consuming to achieve. Therefore, we are motivated to ...

The slime mold Physarum polycephalum is renowned for its incredible perceived intelligence despite it being a unicellular organism devoid of a central nervous system. Some notable abilities of the true slime mold include exploring an area for food ...

The human oral structure contains organs with distinctly different physical properties, such as teeth, gums, and tongues. When food enters the oral cavity, we can recognize the tactile sensation and shape of the object from multiple perspectives ...

Biological bodies have numerous redundant soft muscles. In our laboratory, we pursue both the softness and redundancy of biological bodies in robots. We propose the suitability of the “tensegrity” structure for enhancing softness and redundancy in ...

In stock markets, it is often argued that increased liquidity contributes to the public benefit of the market as a whole, but it is not self-evident. In this study, we analyze the impact of increasing market liquidity on traders’ utility ...

In this study, we describe the development of a behavioral trajectory measurement system called Bucket-ANTAM to measure the behavior of organisms when moving on a two-dimensional plane. The Bucket-ANTAM system detects the center-of-gravity ...

In this study, we show how to build and test a novel rimless wheel robot. We investigated rimless wheel robots, which consist of a rimless wheel and a torso. We needed a rimless wheel robot that can be developed quickly and easily and is easy to ...

In this paper, we propose a method for efficiently guiding a large flock of sheep agents through the cooperation of multiple sheepdog agents even in the presence of anomalies, and verify its performance in computer experiments. In particular, this ...

This paper analyzes the relationship between connectivity robustification and coverage control of multi-robot systems. A coverage control is a cooperative task of the system to cover a given area by sensors equipped by the robots, and it requires ...

Small-scale rotorcraft, such as multi-rotor UAVs, is widely used for various purposes. In particular, aerial vehicles’ inspections of infrastructures such as bridges or tunnels are highly demanded. During inspection activities, aerial vehicles ...

Task allocation is a characteristic feature of social insects. This phenomenon is self-organized by workers in a colony without central instructions. Workers perform the necessary tasks while communicating and determining their colony’s local ...

This paper demonstrates to generate a collective behavior of a multi-legged robotic swarm based on the evolutionary robotics approach. Most studies in swarm robotics are conducted using mobile robots driven by wheels. This paper focuses on ...

Generative Adversarial Network (GAN) is a novel class of deep generative models that has recently gained significant attention. However, the original GAN with one generator can easily get trapped into the mode collapsing problem, which could cause ...

In this study, whether pill bugs produce turn alternation, i.e., the tendency to turn in the opposite direction of a preceding turn, under obstacle-free conditions was investigated by movement measurements using an omnidirectional motion ...

The design of robot motion is one of the most important questions in social robotics as it underpins successful human–robot interaction. Human-inspired motion design based on anthropomorphic models, through which human motion features are ...

This paper presents various perspectives on designing and implementing a communication platform for a teleoperated mobile robot. The deployment of a communication network for a mobile robot and the integration of robot components in the developed ...

Binary classification and anomaly detection face the problem of class imbalance in data sets. The contribution of this paper is to provide an ensemble model that improves image binary classification by reducing the class imbalance between the ...

The authors have been developing a design and training application with a user-friendly operation interface for CNN (Convolutional Neural Network), CAE (Convolutional Autoencoder) and SVM (Support Vector Machine), which can be used for the defect ...

In vehicles with active suspensions, by reducing the tire deflections, handling stability can be improved, and by reducing vertical acceleration of the vehicle body, ride comfort can be improved. In general, for hard road bumps, if handling ...

When an emergency vehicle approaches form behind, the driver must change his/her lane to the left lane and pull over to gave way to the emergency vehicle. However, in most cases the abrupt lane change maneuver of the vehicles in front of the ...

When a disaster strikes, one of the highest priorities is to save the lives of the victims. The proportion of victims that rescuers can save is strongly related to how quickly rescue efforts can begin. Therefore, early detection of disaster ...

In our previous works, we focused on the advantages of a passive mechanism in realizing autonomous robots, and we developed a multi-legged robot that climbs unknown vertical walls with uneven surfaces. In this study, we improve on our previous ...

In this work, we developed a measurement system for the Gas-Autonomous Surface Vehicle (G-ASV), a successor to the micro-Autonomous Surface Vehicle (μ-ASV), to facilitate conducting ocean research. We included a Real-Time Kinematic Global ...

A mobile manipulator is a hybrid of a wheeled vehicle and a robotic arm realizing large locomotion and handling operations that cover many robotic applications, including housework, cleaning, and construction. A mobile base generally achieves ...

Compact and economical remotely operated vehicles (ROVs) have become widely used worldwide. Nevertheless, it is not easy for inexperienced operators to control an ROV that moves while influenced by some external disturbance such as flowing water ...