{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T16:24:51Z","timestamp":1776443091358,"version":"3.51.2"},"reference-count":58,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2022,10,19]],"date-time":"2022-10-19T00:00:00Z","timestamp":1666137600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Spanish Ministerio de Ciencia, Innovaci\u00f3n y Univesidades","award":["RTI2018-095599-B-C21"],"award-info":[{"award-number":["RTI2018-095599-B-C21"]}]},{"name":"Spanish Ministerio de Ciencia, Innovaci\u00f3n y Univesidades","award":["RTI2018-095599-A-C22"],"award-info":[{"award-number":["RTI2018-095599-A-C22"]}]},{"name":"Spanish Ministerio de Ciencia, Innovaci\u00f3n y Univesidades","award":["RTI2018-095599-B-C21"],"award-info":[{"award-number":["RTI2018-095599-B-C21"]}]},{"name":"Spanish Ministerio de Ciencia, Innovaci\u00f3n y Univesidades","award":["RTI2018-095599-A-C22"],"award-info":[{"award-number":["RTI2018-095599-A-C22"]}]},{"name":"Knut and Alice Wallenberg Foundation","award":["RTI2018-095599-B-C21"],"award-info":[{"award-number":["RTI2018-095599-B-C21"]}]},{"name":"Knut and Alice Wallenberg Foundation","award":["RTI2018-095599-A-C22"],"award-info":[{"award-number":["RTI2018-095599-A-C22"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The increasing isolation of the elderly both in their own homes and in care homes has made the problem of caring for elderly people who live alone an urgent priority. This article presents a proposed design for a heterogeneous multirobot system consisting of (i) a small mobile robot to monitor the well-being of elderly people who live alone and suggest activities to keep them positive and active and (ii) a domestic mobile manipulating robot that helps to perform household tasks. The entire system is integrated in an automated home environment (AAL), which also includes a set of low-cost automation sensors, a medical monitoring bracelet and an Android application to propose emotional coaching activities to the person who lives alone. The heterogeneous system uses ROS, IoT technologies, such as Node-RED, and the Home Assistant Platform. Both platforms with the home automation system have been tested over a long period of time and integrated in a real test environment, with good results. The semantic segmentation of the navigation and planning environment in the mobile manipulator for navigation and movement in the manipulation area facilitated the tasks of the later planners. Results about the interactions of users with the applications are presented and the use of artificial intelligence to predict mood is discussed. The experiments support the conclusion that the assistance robot correctly proposes activities, such as calling a relative, exercising, etc., during the day, according to the user\u2019s detected emotional state, making this is an innovative proposal aimed at empowering the elderly so that they can be autonomous in their homes and have a good quality of life.<\/jats:p>","DOI":"10.3390\/s22207983","type":"journal-article","created":{"date-parts":[[2022,10,19]],"date-time":"2022-10-19T22:19:53Z","timestamp":1666217993000},"page":"7983","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["A Multirobot System in an Assisted Home Environment to Support the Elderly in Their Daily Lives"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2800-2457","authenticated-orcid":false,"given":"Ram\u00f3n","family":"Barber","sequence":"first","affiliation":[{"name":"Robotics Lab, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Legan\u00e9s, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2294-688X","authenticated-orcid":false,"given":"Francisco J.","family":"Ortiz","sequence":"additional","affiliation":[{"name":"Department of Automation, Electrical Engineering and Electronics Technology, Universidad Polit\u00e9cnica de Cartagena, St. Dr. Fleming, s\/n, 30203 Cartagena, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3838-8421","authenticated-orcid":false,"given":"Santiago","family":"Garrido","sequence":"additional","affiliation":[{"name":"Robotics Lab, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Legan\u00e9s, Spain"}]},{"given":"Francisco M.","family":"Calatrava-Nicol\u00e1s","sequence":"additional","affiliation":[{"name":"AI for Life, Centre for Applied Autonomous Sensor Systems (AASS), \u00d6rebro University, 70281 \u00d6rebro, Sweden"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3984-381X","authenticated-orcid":false,"given":"Alicia","family":"Mora","sequence":"additional","affiliation":[{"name":"Robotics Lab, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Legan\u00e9s, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4703-7858","authenticated-orcid":false,"given":"Adri\u00e1n","family":"Prados","sequence":"additional","affiliation":[{"name":"Robotics Lab, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Legan\u00e9s, Spain"}]},{"given":"Jos\u00e9 Alfonso","family":"Vera-Repullo","sequence":"additional","affiliation":[{"name":"Department of Automation, Electrical Engineering and Electronics Technology, Universidad Polit\u00e9cnica de Cartagena, St. Dr. Fleming, s\/n, 30203 Cartagena, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6952-0424","authenticated-orcid":false,"given":"Joaqu\u00edn","family":"Roca-Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Department of Automation, Electrical Engineering and Electronics Technology, Universidad Polit\u00e9cnica de Cartagena, St. Dr. Fleming, s\/n, 30203 Cartagena, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8458-5314","authenticated-orcid":false,"given":"Inmaculada","family":"M\u00e9ndez","sequence":"additional","affiliation":[{"name":"Department of Evolutionary and Educational Psychology, Faculty of Psychology, University of Murcia, 30100 Murcia, Spain"}]},{"given":"\u00d3scar Mart\u00ednez","family":"Mozos","sequence":"additional","affiliation":[{"name":"AI for Life, Centre for Applied Autonomous Sensor Systems (AASS), \u00d6rebro University, 70281 \u00d6rebro, Sweden"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,19]]},"reference":[{"key":"ref_1","unstructured":"Davey (2021). Situation in Spain of the Evaluation of Care Systems for the Elderly in Situations of Dependency, Envejecimientoenred.es EnR. Available online: http:\/\/envejecimiento.csic.es\/documentos\/documentos\/enred-situacion-sad.pdf."},{"key":"ref_2","first-page":"1","article-title":"The impact of Covid-19 on the dependent elderly population in Spain with special reference to the residential sector","volume":"26","author":"Codorniu","year":"2021","journal-title":"Ci\u00eancia Sa\u00fade Coletiva"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Cicirelli, G., Marani, R., Petitti, A., Milella, A., Orazio, T.D., and Molina L\u00f3pez, J.M. (2021). Ambient Assisted Living: A Review of Technologies, Methodologies and Future Perspectives for Healthy Aging of Population. Sensors, 21.","DOI":"10.3390\/s21103549"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Li, R., Oskoei, M.A., and Hu, H. (2013, January 13\u201316). Towards ROS Based Multi-robot Architecture for Ambient Assisted Living. Proceedings of the 2013 IEEE International Conference on Systems, Man, and Cybernetics, Manchester, UK.","DOI":"10.1109\/SMC.2013.590"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Benavidez, P., Kumar, M., Agaian, S., and Jamshidi, M. (2015, January 17\u201320). Design of a home multi-robot system for the elderly and disabled. Proceedings of the 2015 10th System of Systems Engineering Conference (SoSE), San Antonio, TX, USA.","DOI":"10.1109\/SYSOSE.2015.7151907"},{"key":"ref_6","unstructured":"Benavidez, P., Kumar, M., Agaian, S., and Jamshidi, M. (2020, January 17\u201319). Robot-Assisted Autism Spectrum Disorder (ASD) Interventions: A Multi-Robot Approach. Proceedings of the 2020 International Conference on Software, Telecommunications and Computer Networks (SoftCOM), Split, Croatia."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"103975","DOI":"10.1016\/j.robot.2021.103975","article-title":"ChildBot: Multi-robot perception and interaction with children","volume":"150","author":"Efthymiou","year":"2022","journal-title":"Robot. Auton. Syst."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"393","DOI":"10.1007\/s12369-016-0351-1","article-title":"A Cloud Robotics Solution to Improve Social Assistive Robots for Active and Healthy Aging","volume":"8","author":"Bonaccorsi","year":"2016","journal-title":"Int. J. Soc. Robot."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Getson, C., and Nejat, G. (2021). Socially Assistive Robots Helping Older Adults through the Pandemic and Life after COVID-19. Robotics, 10.","DOI":"10.3390\/robotics10030106"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Cobo Hurtado, L., Vi\u00f1as, P.F., Zalama, E., G\u00f3mez-Garc\u00eda-Bermejo, J., Delgado, J.M., and Vielba Garc\u00eda, B. (2021). Development and usability validation of a social robot platform for physical and cognitive stimulation in elder care facilities. Healthcare, 9.","DOI":"10.3390\/healthcare9081067"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1231","DOI":"10.1007\/s12369-020-00687-0","article-title":"Mini: A New Social Robot for the Elderly","volume":"12","author":"Salichs","year":"2020","journal-title":"Int. J. Soc. Robot."},{"key":"ref_12","unstructured":"Samsung (2022, September 10). Samsung Bots, the Companions of the Future. Available online: https:\/\/www.itsitio.com\/bo\/samsung-bots-los-companeros-del-futuro\/."},{"key":"ref_13","unstructured":"Garc\u00eda, E. (2022, September 10). Rassel, the Robot That Helps the Elderly. Available online: https:\/\/cadenaser.com\/emisora\/2018\/12\/07\/radio_valencia\/1544174190_652009.html."},{"key":"ref_14","unstructured":"Papadakis, P., Lohr, C., Lujak, M., Karami, A., Kanellos, I., Lozenguez, G., and Fleury, A. (February, January 31). System Design for Coordinated Multi-robot Assistance Deployment in Smart Spaces. Proceedings of the Second IEEE International Conference on Robotic Computing (IRC), Laguna Hills, CA, USA."},{"key":"ref_15","unstructured":"Kumar Pandey, A., Gelin, R., Alami, R., Viry, R., Buendia, A., Meertens, R., Chetouani, M., Devillers, L., Tahon, M., and Filliat, D. (2014, January 26\u201327). Romeo2 Project: Humanoid Robot Assistant and Companion for Everyday Life: I. Situation Assessment for Social Intelligence. Proceedings of the International Workshop on Artificial Intelligence and Cognition (AIC), Torino, Italy."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Mucchiani, C., Torres, W.O., Edgar, D., Johnson, M.J., Cacchione, P.Z., and Yim, M. (2018, January 27\u201331). Development and Deployment of a Mobile Manipulator for Assisting and Entertaining Elders Living in Supportive Apartment Living facilities. Proceedings of the 27th IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN), Tai\u2019an, China.","DOI":"10.1109\/ROMAN.2018.8525826"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1080\/17483107.2019.1642392","article-title":"Assistive robots to improve the independent living of older persons: Results from a needs study","volume":"16","author":"Fiorini","year":"2017","journal-title":"Disabil. Rehabil. Assist. Technol."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Anghel, V.R. (2020). Smart Environments and Social Robots for Age-Friendly Integrated Care Services. Int. J. Environ. Res. Public Health, 17.","DOI":"10.3390\/ijerph17113801"},{"key":"ref_19","unstructured":"(2022, April 29). EnrichMe\u2014PAL Robotics: Leading Service Robotics. Available online: https:\/\/pal-robotics.com\/en\/collaborative-projects\/enrichme\/."},{"key":"ref_20","first-page":"9412384","article-title":"Enhancing the Ambient Assisted Living Capabilities with a Mobile Robot","volume":"2019","author":"Escalona","year":"2019","journal-title":"Comput. Intell. Neurosci."},{"key":"ref_21","unstructured":"Pires, I.M., Spinsante, S., Zdravevski, E., and Lameski, P. (2021). Augmented Reality, Virtual Reality and Mixed Reality as Driver Tools for Promoting Cognitive Activity and Avoid Isolation in Ageing Population. Smart Objects and Technologies for Social Good, Proceedings of the GOODTECHS 2021, Virtual Event, 15\u201317 September 2021, Springer. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1109\/MIS.2017.4531227","article-title":"Robots in Retirement Homes: Person Search and Task Planning for a Group of Residents by a Team of Assistive Robots","volume":"32","author":"Booth","year":"2017","journal-title":"IEEE Intell. Syst."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Fuentetaja, R., Garc\u00eda-Olaya, A., Garc\u00eda, J., Gonz\u00e1lez, J.C., and Fern\u00e1ndez, F. (2020). An Automated Planning Model for HRI: Use Cases on Social Assistive Robotics. Sensors, 20.","DOI":"10.3390\/s20226520"},{"key":"ref_24","unstructured":"McDermott, D., Ghallab, M., Howe, A., Knoblock, C., Ram, A., Veloso, M., Weld, D., and Wilkins, D. (1998). PDDL\u2014The Planning Domain Definition Language, Yale Center for Computational Vision and Control. Technical Report CVC TR-98-003\/DCS TR-1165."},{"key":"ref_25","unstructured":"Hoteit, B., Abdallah, A., Faour, A., Awada, I.A., Sorici, A., and Florea, A.M. (2020, January 18\u201320). AI Planning and Reasoning for a Social Assistive Robot. Proceedings of the 17th International Conference on Cognition and Exploratory Learning in Digital Age (CELDA), Lisbon, Portugal."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Zlot, A., and Stentz, A. (2005, January 18\u201322). Complex task allocation for multiple robots. Proceedings of the IEEE International Conference on Robotics and Automation, Barcelona, Spain.","DOI":"10.1109\/ROBOT.2005.1570329"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"G\u00f3mez, J.V., Mavridis, N., and Garrido, S. (June, January 31). Fast marching solution for the social path planning problem. Proceedings of the 2014 IEEE International Conference on Robotics and Automation (ICRA), Hong Kong, China.","DOI":"10.1109\/ICRA.2014.6907105"},{"key":"ref_28","unstructured":"G\u00f3mez, J.V., Mavridis, N., and Garrido, S. (2013, January 3\u20137). Social Path Planning: Generic Human-Robot Interaction Framework for Robotic Navigation Tasks. Proceedings of the IEEE\/RSJ International Conference on Intelligent Robots and Systems, Tokyo, Japan."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Mart\u00edn, F., Rodr\u00edguez Lera, F.J., Gin\u00e9s, J., and Matell\u00e1n, V. (2020). Evolution of a Cognitive Architecture for Social Robots: Integrating Behaviors and Symbolic Knowledge. Appl. Sci., 10.","DOI":"10.3390\/app10176067"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Zhang, C., Zhou, L., Li, Y., and Fan, Y. (2020). A Dynamic Path Planning Method for Social Robots in the Home Environment. Electronics, 9.","DOI":"10.3390\/electronics9071173"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/j.engappai.2017.04.015","article-title":"Fast scene analysis using vision and artificial intelligence for object prehension by an assistive robot","volume":"63","author":"Achiche","year":"2017","journal-title":"Eng. Appl. Artif. Intell."},{"key":"ref_32","first-page":"1","article-title":"Geometrically constrained path planning for robotic grasping with Differential Evolution and Fast Marching Square","volume":"40","author":"Quevedo","year":"2022","journal-title":"Robotica"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Gombolay, M.C., Wilcox, R., and Shah, J.A. (2013, January 24\u201328). Fast Scheduling of Multi-Robot Teams with Temporospatial Constraints. Proceedings of the Robotics: Science and Systems 2013, Berlin, Germany.","DOI":"10.15607\/RSS.2013.IX.049"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1650041","DOI":"10.1142\/S0129065716500416","article-title":"Stress detection using wearable physiological and sociometric sensors","volume":"27","author":"Mozos","year":"2017","journal-title":"Int. J. Neural Syst."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Koutli, M., Theologou, N., Tryferidis, A., and Tzovaras, D. (2019, January 28\u201330). Abnormal behavior detection for elderly people living alone leveraging IoT sensors. Proceedings of the 2019 IEEE 19th International Conference on Bioinformatics and Bioengineering BIBE, Athens, Greece.","DOI":"10.1109\/BIBE.2019.00173"},{"key":"ref_36","unstructured":"Calatrava, F.M., Ortiz, F.J., Vera, J.A., Roca, J., Jim\u00e9nez, M., and Mart\u00ednez, O. (2021, January 1\u20133). Heterogeneous system for monitoring daily activity at home and the well-being of the elderly. Proceedings of the XLII Conference on Automatic: Minutes Book, Castell\u00f3, Spain."},{"key":"ref_37","unstructured":"Doryab, A., Min, J.K., Wiese, J., Zimmerman, J., and Hong, J.I. (2014, January 27\u201331). Detection of behavior change in people with depression. Proceedings of the AAAI, Qu\u00e9bec City, QC, Canada."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"e14149","DOI":"10.2196\/14149","article-title":"Depression prediction by using ecological momentary assessment, actiwatch data, and machine learning: Observational study on older adults living alone","volume":"7","author":"Kim","year":"2019","journal-title":"JMIR mHealth uHealth"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Kocielnik, R., Sidorova, N., Maggi, F.M., Ouwerkerk, M., and Westerink, J.H.D.M. (2013, January 20\u201322). Smart technologies for long-term stress monitoring at work. Proceedings of the CBMS 2013\u201426th IEEE International Symposium on Computer-Based Medical Systems, Porto, Portugal.","DOI":"10.1109\/CBMS.2013.6627764"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1007\/s11370-017-0237-6","article-title":"The multi-modal interface of Robot-Era multi-robot services tailored for the elderly","volume":"11","author":"Broz","year":"2018","journal-title":"Intell. Serv. Robot."},{"key":"ref_41","unstructured":"(2022, September 10). WHO21 Ethics and Governance of Artificial Intelligence for Health, a WHO Guideline 2021. Available online: https:\/\/www.who.int\/publications\/i\/item\/9789240029200."},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Bautista-Salinas, D., Gonz\u00e1lez, J.R., M\u00e9ndez, I., and Mozos, O.M. (2019, January 23\u201327). Monitoring and Prediction of Mood in Elderly People during Daily Life Activities. Proceedings of the 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Berlin, Germany.","DOI":"10.1109\/EMBC.2019.8857847"},{"key":"ref_43","unstructured":"Az-Delivery (2022, September 10). ESP32. Available online: https:\/\/www.az-delivery.de\/es\/products\/esp32-developmentboard."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Calatrava-Nicol\u00e1s, F.M., Guti\u00e9rrez-Maestro, E., Bautista-Salinas, D., Ortiz, F.J., Roca Gonz\u00e1lez, J., Vera-Repullo, J.A., Jim\u00e9nez-Buend\u00eda, M., M\u00e9ndez, I., Ruiz-Esteban, C., and Mozos, O. (2021). Robot-based well-being monitoring and advice system for the elderly in their daily activities. Sensors, 21.","DOI":"10.3390\/s21206865"},{"key":"ref_45","doi-asserted-by":"crossref","unstructured":"Sun, F.T., Kuo, C., Cheng, H.T., Buthpitiya, S., Collins, P., and Griss, M. (2012). Activity-aware mental stress detection using physiological sensors. Lecture Notes of the Institute for Computer Sciences, Engineering, LNICST, Springer.","DOI":"10.1007\/978-3-642-29336-8_16"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1161","DOI":"10.1037\/h0077714","article-title":"A circumplex model of affect","volume":"39","author":"Russell","year":"1980","journal-title":"J. Pers. Soc. Psychol."},{"key":"ref_47","unstructured":"(2022, September 10). TurtleBot2. Available online: https:\/\/www.turtlebot.com\/turtlebot2\/."},{"key":"ref_48","unstructured":"(2022, September 10). RB-1-BASE Mobile Robot. Available online: https:\/\/robotnik.eu\/es\/productos\/robots-moviles\/rb-1-base\/."},{"key":"ref_49","unstructured":"(2022, September 10). UR3 Robotic Arm. Available online: https:\/\/www.universal-robots.com\/es\/productos\/robot-ur3\/."},{"key":"ref_50","unstructured":"(2022, September 10). Gmapping\u2014ROS Wiki. Available online: http:\/\/wiki.ros.org\/gmapping."},{"key":"ref_51","unstructured":"(2022, September 10). Explore_lite\u2014ROS Wiki. Available online: http:\/\/wiki.ros.org\/explore_lite."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1016\/0165-1684(94)90060-4","article-title":"Topographic distance and watershed lines","volume":"38","author":"Meyer","year":"1994","journal-title":"Signal Process."},{"key":"ref_53","unstructured":"(2022, October 17). Adaptive Monte Carlo Localization\u2014ROS Wiki. Available online: http:\/\/wiki.ros.org\/amcl."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1007\/BF01386390","article-title":"A note on two problems in connexion with graphs","volume":"1","author":"Dijkstra","year":"1959","journal-title":"Numer. Math."},{"key":"ref_55","first-page":"48","article-title":"FM2: A real-time sensor-based feedback controller for mobile robots","volume":"24","author":"Garrido","year":"2009","journal-title":"Int. J. Robot. Autom."},{"key":"ref_56","unstructured":"Barrientos, A., Penin, L.F., Balaguer, C., and Aracil, R. (1997). Fundamentals of Robotics, McGraw-Hill. [1st ed.]."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1023\/A:1008202821328","article-title":"Differential Evolution\u2014A Simple and Efficient Heuristic for Global Optimization over Continuous Spaces","volume":"11","author":"Storn","year":"1997","journal-title":"J. Glob. Optim."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"617","DOI":"10.1007\/s10846-017-0469-x","article-title":"Relational Model for Robotic Semantic Navigation in Indoor Environments","volume":"86","author":"Crespo","year":"2017","journal-title":"J. Intell. Robot. 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