clus;kw;freq
1;3d city model;6
1;5g;184
1;6g;26
1;6lowpan;13
1;acceptance;23
1;access;160
1;access control;70
1;accessibility;6
1;accuracy;13
1;activity;16
1;activity recognition;9
1;adaptation;8
1;adoption;12
1;aerial;58
1;agent;45
1;aggregation;34
1;agriculture;36
1;air;100
1;air-pollution;44
1;air quality;54
1;allocation;141
1;ambient;19
1;ambient intelligence;6
1;analytics;64
1;android;18
1;anomaly;29
1;anomaly detection;24
1;anonymity;41
1;application;225
1;architecture;431
1;arduino;37
1;areas;60
1;artificial;84
1;artificial intelligence;104
1;assessment;21
1;attacks;131
1;augmented;20
1;augmented reality;17
1;authentication;221
1;automata;7
1;automation;34
1;autonomous;42
1;autonomous vehicles;11
1;availability;16
1;aware;40
1;awareness;44
1;barriers;8
1;batteries;13
1;behaviour;38
1;big-data;141
1;bim;17
1;blockchain;436
1;bluetooth;36
1;buildings;66
1;business;20
1;calibration;10
1;camera;31
1;campus;24
1;capacity;14
1;carbon;14
1;care;150
1;cellular;34
1;cellular networks;25
1;challenges;294
1;change;8
1;charging;7
1;citizens;22
1;citygml;6
1;classification;41
1;cloud;612
1;cluster;75
1;clustering;61
1;clusters;6
1;coap;23
1;collaboration;19
1;collection;56
1;communication;365
1;community;27
1;complexity;11
1;component;21
1;computational;71
1;computational modeling;49
1;computer;97
1;computer architecture;52
1;computer vision;9
1;computing;902
1;congestion;21
1;connected;31
1;connected vehicles;6
1;connectivity;20
1;conservation;7
1;construction;15
1;consumption;65
1;context;78
1;context-awareness;22
1;contract;95
1;control;197
1;coordination;11
1;costs;61
1;coverage;48
1;covid-19;25
1;crime;18
1;crowdsensing;45
1;crowdsourcing;35
1;cryptography;67
1;cultural;7
1;culture;8
1;cyber;236
1;cyber-physical systems;102
1;cybersecurity;111
1;data;535
1;data-collection;38
1;data aggregation;19
1;data analysis;16
1;data analytics;28
1;data fusion;11
1;data management;16
1;data mining;17
1;data models;20
1;data privacy;31
1;data processing;17
1;data quality;7
1;data security;17
1;data sharing;16
1;database;21
1;decentralization;9
1;decentralized;34
1;decision;42
1;decision-making;23
1;deep;29
1;deep learning;23
1;delay;67
1;delivery;27
1;demand;19
1;deployment;51
1;design;169
1;detection;177
1;development;16
1;device;130
1;diffusion;10
1;digital;94
1;digital twin;28
1;digitalization;8
1;discovery;25
1;distance;10
1;distributed;140
1;distributed computing;17
1;distribution;30
1;diversity;10
1;drones;39
1;dynamics;12
1;economics;9
1;economy;18
1;ecosystem;38
1;edge;487
1;edge computing;382
1;education;26
1;efficiency;81
1;efficient;123
1;electric;19
1;electric vehicle;11
1;embedded;33
1;embedded systems;22
1;emissions;7
1;encryption;69
1;energy;302
1;energy consumption;42
1;energy efficiency;86
1;energy harvesting;28
1;energy management;24
1;energy saving;9
1;engagement;8
1;environment;96
1;environmental;46
1;environmental monitoring;32
1;ethereum;31
1;ethics;8
1;evaluation;58
1;evolution;25
1;experience;23
1;experimentation;9
1;exposure;17
1;extraction;13
1;features;20
1;federated;29
1;federated learning;22
1;fiber;11
1;fiware;15
1;flow;33
1;fog;299
1;fog computing;238
1;food;7
1;forecasting;10
1;forest;10
1;fusion;35
1;future;66
1;fuzzy;44
1;fuzzy-logic;20
1;game;44
1;game theory;20
1;gdpr;14
1;gis;14
1;governance;9
1;government;12
1;gps;31
1;green;43
1;grids;72
1;growth;8
1;harvesting;27
1;health;200
1;healthcare;130
1;heritage;8
1;home;129
1;human;32
1;hybrid;23
1;hyperledger;16
1;ict;28
1;identification;84
1;identity;19
1;image;45
1;image processing;6
1;impacts;27
1;implementation;32
1;indoor;42
1;indoor localization;18
1;industrial;68
1;industrial iot;22
1;industry;73
1;industry40;43
1;informatics;9
1;information;208
1;information-technology;19
1;information security;41
1;information systems;27
1;infrastructure;68
1;innovation;19
1;integration;46
1;intelligence;126
1;intelligent;122
1;intelligent transportation;15
1;intelligent transportation systems;27
1;interference;24
1;internet;1091
1;internet-of-things;2044
1;internet-of-vehicles;27
1;interoperability;50
1;intrusion;56
1;intrusion detection;51
1;intrusion detection system;16
1;iot security;35
1;iov;25
1;key agreement;47
1;key agreement scheme;26
1;knowledge;26
1;lab;6
1;latency;42
1;learning;115
1;ledger;29
1;lidar;23
1;life;42
1;lifetime;26
1;lighting;24
1;lightweight;45
1;living;19
1;load;41
1;local;10
1;localization;77
1;location;58
1;logistics;8
1;lora;164
1;lorawan;88
1;lpwan;63
1;lstm;10
1;lte;16
1;m2m;19
1;machine;74
1;machine learning;39
1;management;562
1;manet;17
1;market;23
1;mathematical;11
1;mathematical model;11
1;media;29
1;meter;49
1;microservices;21
1;middleware;46
1;migration;15
1;mining;27
1;mitigation;19
1;mobile;348
1;mobile applications;38
1;mobile computing;79
1;mobile crowdsensing;24
1;mobile edge computing;60
1;mobile sensing;35
1;mobility;81
1;monitoring;256
1;mqtt;40
1;multi-agent;17
1;multi-agent systems;15
1;mutual;28
1;mutual authentication;25
1;navigation;16
1;network analysis;8
1;networking;104
1;networks;1272
1;neural;17
1;neural-networks;20
1;noise;54
1;object;34
1;object detection;10
1;online;25
1;ontology;31
1;open;43
1;open-source;10
1;open data;8
1;operation;10
1;opportunity;22
1;optimization;205
1;organizations;12
1;pandemic;8
1;parallel;16
1;parking;67
1;participatory;12
1;participatory sensing;9
1;particle;24
1;particle swarm optimization;10
1;particulate matter;8
1;path;33
1;patterns;9
1;people;20
1;perceptions;11
1;performance;141
1;performance evaluation;34
1;pervasive;17
1;pervasive computing;11
1;physical;133
1;placement;48
1;planning;26
1;platform;97
1;policy;37
1;pollution;81
1;power;138
1;prediction;48
1;predictive;14
1;privacy;440
1;processing;68
1;project;18
1;protection;41
1;protocols;285
1;public;33
1;public safety;8
1;quality;169
1;quality-of-service;65
1;ranking;8
1;raspberry pi;33
1;real-time;58
1;real-time systems;28
1;reality;30
1;recognition;56
1;reconstruction;14
1;recovery;12
1;reduction;15
1;regions;6
1;reinforcement;15
1;reinforcement learning;14
1;reliability;66
1;remote sensing;7
1;renewable;7
1;renewable energy;6
1;requirements;42
1;resilience;41
1;resolution;7
1;resource allocation;94
1;resource management;59
1;resources;194
1;response;18
1;reuse;8
1;rfid;51
1;risk;48
1;road traffic;7
1;roads;35
1;routing;132
1;routing protocol;50
1;rpl;27
1;safety;57
1;satisfaction;6
1;savings;9
1;scalabitity;37
1;scheduling;69
1;science;21
1;sdn;101
1;secure;98
1;security;896
1;security and privacy;27
1;segmentation;16
1;selection;66
1;semantic;29
1;sensing;136
1;sensor networks;484
1;sensors;960
1;servers;64
1;services;365
1;sharing;59
1;signature;27
1;simulation;81
1;smart;884
1;smart buildings;32
1;smart campus;24
1;smart city applications;21
1;smart city services;7
1;smart community;12
1;smart contracts;88
1;smart devices;30
1;smart energy;6
1;smart environment;39
1;smart grid;57
1;smart health;58
1;smart home;107
1;smart infrastructure;9
1;smart lighting;10
1;smart living;8
1;smart meters;27
1;smart mobility;12
1;smart parking;46
1;smart sensors;23
1;smart services;21
1;smart sustainable cities;10
1;smart tourism;9
1;smart transportation;6
1;smartphones;37
1;social;88
1;social media;11
1;social networks;35
1;society;12
1;software;136
1;software-defined networking;69
1;software architecture;13
1;solar;16
1;solar energy;6
1;space;19
1;spaces;19
1;spatial;29
1;stakeholders;7
1;standards;51
1;state;22
1;stations;19
1;storage;28
1;strategy;28
1;stress;6
1;supply chain;16
1;support;18
1;surface;16
1;surveillance;81
1;sustainability;35
1;sustainable;44
1;sustainable cities;21
1;svm;9
1;systems;884
1;task analysis;42
1;tasks;90
1;technology;319
1;temperature;25
1;testbed;19
1;thinking;8
1;throughput;21
1;time;148
1;topology;27
1;tourism;14
1;tracking;52
1;traffic;84
1;traffic management;14
1;traffic monitoring;13
1;training;14
1;trajectory;13
1;transfer;18
1;transformation;11
1;transmission;47
1;transparency;9
1;transportation;52
1;travel;9
1;trees;6
1;trends;24
1;trust;116
1;trust management;17
1;uav;51
1;ubiquitous;35
1;ubiquitous computing;28
1;uncertainty;17
1;unmanned;53
1;urban;106
1;urban areas;16
1;urban computing;12
1;urban mobility;8
1;urban sensing;10
1;use;9
1;user acceptance;11
1;user authentication;35
1;user experience;6
1;users;88
1;v2x;14
1;validation;13
1;value;15
1;vanet;19
1;vehicle detection;10
1;vehicles;194
1;vehicular;61
1;vehicular networks;36
1;video;54
1;video surveillance;17
1;virtual;99
1;virtual reality;13
1;vision;29
1;visualization;16
1;vulnerability;18
1;waste;68
1;waste management;50
1;water;60
1;water management;7
1;web;45
1;web services;10
1;wi-fi;25
1;wireless;643
1;wireless communication;88
1;wireless networks;458
1;wireless sensor network;432
1;work;14
1;workflow;7
1;zigbee;23
2;3d city model;8
2;5g;12
2;acceptance;69
2;access;39
2;accessibility;92
2;accuracy;6
2;activity;100
2;adaptation;114
2;adoption;84
2;age;25
2;agent;26
2;agglomeration;38
2;agriculture;76
2;ahp;59
2;air;198
2;air-pollution;101
2;air quality;62
2;allocation;11
2;ambient;18
2;analytics;35
2;application;63
2;architecture;56
2;areas;212
2;artificial;42
2;artificial intelligence;42
2;assessment;213
2;attitude;38
2;augmented;31
2;augmented reality;31
2;australia;26
2;automata;19
2;automation;14
2;autonomous;14
2;autonomous vehicles;11
2;availability;16
2;awareness;16
2;barcelona;16
2;barriers;44
2;behaviour;161
2;benchmarking;30
2;benefits;98
2;bicycle;21
2;big-data;122
2;bim;30
2;biodiversity;80
2;blockchain;18
2;buildings;157
2;built;135
2;built environment;131
2;business;126
2;business models;55
2;campus;19
2;capacity;67
2;carbon;204
2;carbon emission;62
2;carbon footprint;22
2;care;47
2;cellular;19
2;cellular-automata;19
2;centrality;11
2;challenges;282
2;change;377
2;children;24
2;china;256
2;choice;52
2;circular;82
2;circular economy;74
2;citizen participation;78
2;citizen science;21
2;citizens;277
2;city logistics;50
2;city management;17
2;city planning;44
2;classification;48
2;climate;417
2;climate-change;259
2;cloud;18
2;cluster;37
2;clustering;14
2;clusters;27
2;co2;99
2;co2 emissions;86
2;collaboration;49
2;collection;27
2;comfort;85
2;communication;51
2;community;260
2;compact;245
2;compact city;220
2;competitiveness;23
2;complexity;25
2;component;27
2;computational;16
2;computer;20
2;computing;22
2;congestion;18
2;connected;13
2;connectivity;26
2;conservation;64
2;construction;113
2;consumption;185
2;context;60
2;control;33
2;coordination;16
2;coproduction;25
2;costs;51
2;cover;94
2;coverage;7
2;covid-19;94
2;crime;19
2;crowdsourcing;40
2;cultural;89
2;cultural heritage;42
2;culture;124
2;cyber;7
2;cycling;22
2;data;286
2;data analysis;15
2;data analytics;7
2;data models;8
2;data science;6
2;data visualization;6
2;decentralization;10
2;decision;173
2;decision-making;103
2;deep;7
2;delivery;39
2;demand;49
2;democracy;23
2;densification;42
2;density;131
2;design;457
2;detection;12
2;determinants;74
2;developing countries;36
2;development;1034
2;diffusion;25
2;digital;389
2;digital city;54
2;digital divide;25
2;digital economy;30
2;digital transformation;47
2;digital twin;36
2;digitalization;44
2;discovery;7
2;distance;18
2;distributed;9
2;distribution;32
2;diversity;58
2;divide;29
2;drones;7
2;dss;24
2;dynamics;113
2;eco-city;110
2;ecological;123
2;ecological footprint;14
2;ecology;95
2;economic;196
2;economic development;33
2;economic growth;75
2;economics;29
2;economy;295
2;ecosystem;279
2;ecosystem services;161
2;education;105
2;efficiency;149
2;electric;28
2;electric vehicle;14
2;electricity;33
2;emissions;251
2;energy;529
2;energy consumption;61
2;energy efficiency;52
2;energy management;10
2;energy saving;15
2;energy transition;37
2;energy use;15
2;engagement;123
2;entrepreneurial;25
2;entrepreneurs;6
2;entrepreneurship;47
2;environment;424
2;environmental;314
2;environmental impacts;34
2;environmental sustainability;30
2;equity;60
2;ethics;19
2;europe;99
2;european cities;22
2;evaluation;115
2;evolution;60
2;expansion;63
2;experience;67
2;experimentation;19
2;exposure;52
2;extraction;10
2;features;16
2;flow;63
2;food;91
2;forecasting;10
2;forest;73
2;form;146
2;freight;44
2;freight transport;29
2;fusion;8
2;future;222
2;future cities;27
2;fuzzy;56
2;fuzzy-logic;9
2;game;39
2;gamification;22
2;gas emissions;44
2;gender;33
2;gentrification;28
2;geography;76
2;ghg;58
2;gis;122
2;globalization;16
2;governance;640
2;government;208
2;gps;8
2;green;635
2;green city;102
2;green infrastructure;100
2;green roofs;31
2;green space;157
2;greenhouse;73
2;greening;27
2;grids;14
2;growth;339
2;harvesting;6
2;health;329
2;healthcare;21
2;heat;161
2;heat-island;110
2;heating;13
2;heritage;71
2;home;26
2;hong-kong;29
2;housing;74
2;human;110
2;hybrid;25
2;hydrogen;8
2;ict;175
2;identification;23
2;identity;27
2;image;64
2;impacts;477
2;implementation;89
2;india;82
2;indonesia;14
2;indoor;24
2;industrial;54
2;industrial ecology;10
2;industry;92
2;industry40;27
2;inequality;52
2;informatics;20
2;information;280
2;information-technology;84
2;information systems;51
2;infrastructure;354
2;initiatives;74
2;innovation;551
2;innovative;50
2;innovative city;24
2;institutions;69
2;integration;55
2;intelligence;72
2;intelligent;51
2;intelligent transportation systems;7
2;internet;140
2;internet-of-things;109
2;interoperability;15
2;justice;82
2;knowledge;243
2;knowledge city;20
2;knowledge economy;14
2;knowledge management;32
2;lab;63
2;land;180
2;land-use;241
2;land-use change;39
2;landscape;156
2;learning;45
2;lidar;13
2;life;232
2;life-cycle assessment;55
2;lighting;17
2;liveability;15
2;living;99
2;living labs;48
2;load;7
2;local;150
2;local government;55
2;localization;13
2;location;54
2;logistics;91
2;low-carbon;32
2;low-carbon city;16
2;machine;22
2;machine learning;7
2;malaysia;15
2;management;671
2;market;43
2;mathematical;7
2;media;123
2;metabolism;40
2;meter;10
2;microclimate;31
2;migration;35
2;mining;15
2;mitigation;87
2;mobile;48
2;mobile applications;10
2;mobility;310
2;monitoring;39
2;morphology;46
2;mortality;35
2;multi-agent;6
2;multilevel;39
2;multilevel governance;20
2;nature;47
2;navigation;8
2;neighborhood;107
2;network analysis;25
2;networks;230
2;neural;10
2;neural-networks;10
2;nlp;8
2;noise;23
2;object;10
2;online;24
2;ontology;14
2;open;128
2;open-source;8
2;open data;18
2;open innovation;37
2;operation;17
2;opportunity;55
2;optimization;84
2;organizations;51
2;pandemic;30
2;parking;16
2;parks;63
2;participation;253
2;participatory;70
2;participatory design;18
2;particle;11
2;particulate matter;28
2;partnerships;45
2;path;55
2;patterns;113
2;people;57
2;perceptions;102
2;performance;315
2;performance evaluation;10
2;physical;84
2;physical activity;71
2;place;115
2;planning;611
2;platform;106
2;policy;577
2;politics;166
2;pollution;192
2;population;98
2;poverty;33
2;power;66
2;prediction;22
2;predictive;6
2;privacy;29
2;processing;10
2;productivity;44
2;project;105
2;protection;30
2;public;458
2;public health;41
2;public participation;45
2;public safety;11
2;public transportation;61
2;public value;19
2;quality;363
2;quality-of-life;95
2;random forest;13
2;ranking;35
2;real-time;7
2;reality;52
2;recognition;11
2;reconstruction;13
2;recovery;35
2;reduction;47
2;regeneration;72
2;regions;172
2;reliability;11
2;remote sensing;53
2;renewable;80
2;renewable energy;67
2;requirements;15
2;residents;36
2;resilience;217
2;resolution;11
2;resource management;15
2;resources;79
2;response;19
2;reuse;18
2;risk;143
2;roads;51
2;routing;10
2;safety;65
2;sanitation;10
2;satisfaction;82
2;savings;21
2;scalabitity;7
2;scenarios;66
2;schools;23
2;science;148
2;scm;12
2;sdg;181
2;security;58
2;segmentation;7
2;selection;43
2;semantic;14
2;sensing;81
2;sensitivity;26
2;sensitivity analysis;13
2;sensors;18
2;sentiment;14
2;services;456
2;shanghai;23
2;shared;18
2;shared mobility;6
2;sharing;82
2;sharing economy;43
2;simulation;127
2;singapore;23
2;smart;592
2;smart buildings;14
2;smart campus;6
2;smart city services;17
2;smart community;29
2;smart economy;19
2;smart energy;9
2;smart environment;21
2;smart governance;92
2;smart government;16
2;smart grid;8
2;smart growth;17
2;smart infrastructure;11
2;smart living;16
2;smart mobility;57
2;smart services;12
2;smart sustainable cities;98
2;smart technologies;38
2;smart tourism;28
2;smart transportation;16
2;smartphones;6
2;social;406
2;social innovation;40
2;social media;88
2;social networks;15
2;social sustainability;34
2;society;78
2;sociology;21
2;software;26
2;solar;40
2;solar energy;20
2;space;124
2;spaces;333
2;spatial;257
2;spatial planning;23
2;sprawl;86
2;stakeholders;75
2;standards;24
2;state;53
2;stations;12
2;storage;25
2;strategy;210
2;stress;32
2;supply chain;33
2;support;101
2;surface;92
2;surveillance;20
2;sustainability;849
2;sustainable;1387
2;sustainable cities;689
2;sustainable development;533
2;sustainable mobility;65
2;sustainable transport;44
2;sustainable urban development;73
2;system dynamics;17
2;systems;700
2;technology;768
2;technology acceptance model;14
2;temperature;119
2;thermal;76
2;thermal comfort;56
2;thinking;54
2;time;66
2;topology;6
2;topsis;18
2;tourism;106
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