T social behaviors. Interview results showed why elderly people preferred the

T social behaviors. Interview results showed why elderly people preferred the wheelchair robot, e.g., the robot was easy to make a request for elderly people.AppendixThe preliminary stages of this research have been presented at the Human Agent Interaction (HAI 2014) conference, and published as part of the conference proceedings [30]. Therefore the part of data was collected in the past article, but we HS-173 site gathered extra data and analyzed them such as interview results. Moreover, the past paper aimed to develop the autonomous wheelchair system, different from the main contributions of this paper. As a result, the present work largely extends and completes the research that had been performed for the conference paper. The improvements include an investigation of perception of participants towards our robots, new hypothesis, prediction and discussion with fpsyg.2014.00726 deeper analysis.Supporting InformationS1 Table. Questionnaire results. (XLSX) S2 Table. Coding results of interview data. (XLSX)PLOS ONE | DOI:10.1371/journal.pone.0128031 May 20,13 /Effectiveness of Social Behaviors for Autonomous Wheelchair RobotAcknowledgmentsWe also thank the staff at the ORIX Living Innovation Center and the Good Time Living for their helpful participation and Shinobu Masaki, Naoki Kusakawa, and Eiko Fukumori for their help.Author ContributionsConceived and designed the experiments: MS TI KK CS NH. Performed the experiments: MS TI KK CS NH. Analyzed the data: MS TI. Contributed reagents/materials/analysis tools: MS TI. Wrote the paper: MS TI KK CS NH.
The design of computer and telecommunication networks is a hard constrained combinatorial optimization problem that has received considerable attention from practitioners and researchers during the recent years. The telecommunication network design problem consists of deciding the number, types, and locations of the network active elements (hubs, switches, and routers), as well as the links and their capacities. Several conflicting and hierarchical objectives such as monetary cost, network delay, and maximum number of hubs have to be optimized to achieve a desirable solution. In the existing literature we can identify two kinds of problems related to the telecommunication networks design: hub Zebularine cost location [1] and topological design [2]. The hub location problem is wcs.1183 concerned with locating hub facilities in a network and allocating demand nodes to hubs in order to route the traffic between origin estination pairs. ThePLOS ONE | DOI:10.1371/journal.pone.0128067 June 23,1 /GA for the BLANDPproblem of designing the networks topology consists on the selection of a subset of links which optimize a predetermined performance criterion. In this paper we focus on a topological design of local area networks (LANs). LANs are commonly used as communication infrastructures which meet the demand for a set of users in the local environment. Usually these networks consist of several LAN segments connected by bridges. The topological design problem of a LAN consists on finding the best configuration between users and clusters that optimizes a defined (or several) performance criterion, such as, equipment costs, connection costs, response times, network reliability, among others (see [3]). These performance criteria are very important and are significantly affected by the network topology. The problem of optimal network design is a hard combinatorial problem involving assignment and routing decisions. The assignment problem is to determine the be.T social behaviors. Interview results showed why elderly people preferred the wheelchair robot, e.g., the robot was easy to make a request for elderly people.AppendixThe preliminary stages of this research have been presented at the Human Agent Interaction (HAI 2014) conference, and published as part of the conference proceedings [30]. Therefore the part of data was collected in the past article, but we gathered extra data and analyzed them such as interview results. Moreover, the past paper aimed to develop the autonomous wheelchair system, different from the main contributions of this paper. As a result, the present work largely extends and completes the research that had been performed for the conference paper. The improvements include an investigation of perception of participants towards our robots, new hypothesis, prediction and discussion with fpsyg.2014.00726 deeper analysis.Supporting InformationS1 Table. Questionnaire results. (XLSX) S2 Table. Coding results of interview data. (XLSX)PLOS ONE | DOI:10.1371/journal.pone.0128031 May 20,13 /Effectiveness of Social Behaviors for Autonomous Wheelchair RobotAcknowledgmentsWe also thank the staff at the ORIX Living Innovation Center and the Good Time Living for their helpful participation and Shinobu Masaki, Naoki Kusakawa, and Eiko Fukumori for their help.Author ContributionsConceived and designed the experiments: MS TI KK CS NH. Performed the experiments: MS TI KK CS NH. Analyzed the data: MS TI. Contributed reagents/materials/analysis tools: MS TI. Wrote the paper: MS TI KK CS NH.
The design of computer and telecommunication networks is a hard constrained combinatorial optimization problem that has received considerable attention from practitioners and researchers during the recent years. The telecommunication network design problem consists of deciding the number, types, and locations of the network active elements (hubs, switches, and routers), as well as the links and their capacities. Several conflicting and hierarchical objectives such as monetary cost, network delay, and maximum number of hubs have to be optimized to achieve a desirable solution. In the existing literature we can identify two kinds of problems related to the telecommunication networks design: hub location [1] and topological design [2]. The hub location problem is wcs.1183 concerned with locating hub facilities in a network and allocating demand nodes to hubs in order to route the traffic between origin estination pairs. ThePLOS ONE | DOI:10.1371/journal.pone.0128067 June 23,1 /GA for the BLANDPproblem of designing the networks topology consists on the selection of a subset of links which optimize a predetermined performance criterion. In this paper we focus on a topological design of local area networks (LANs). LANs are commonly used as communication infrastructures which meet the demand for a set of users in the local environment. Usually these networks consist of several LAN segments connected by bridges. The topological design problem of a LAN consists on finding the best configuration between users and clusters that optimizes a defined (or several) performance criterion, such as, equipment costs, connection costs, response times, network reliability, among others (see [3]). These performance criteria are very important and are significantly affected by the network topology. The problem of optimal network design is a hard combinatorial problem involving assignment and routing decisions. The assignment problem is to determine the be.