{"id":4420,"date":"2025-10-17T15:52:51","date_gmt":"2025-10-17T18:52:51","guid":{"rendered":"https:\/\/www.inf.ufrgs.br\/ontokg\/?page_id=4420"},"modified":"2025-12-12T12:40:45","modified_gmt":"2025-12-12T15:40:45","slug":"ontologies-and-knowledge-graphs","status":"publish","type":"page","link":"https:\/\/www.inf.ufrgs.br\/ontokg\/index.php\/ontologies-and-knowledge-graphs\/","title":{"rendered":"Ontologies and Knowledge Graphs"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Team<\/h2>\n\n\n\n<div class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-478b6e6b wp-block-group-is-layout-grid\">\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"419\" height=\"560\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Mara.jpg\" alt=\"\" class=\"wp-image-4614\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Mara.jpg 419w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Mara-224x300.jpg 224w\" sizes=\"auto, (max-width: 419px) 100vw, 419px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Mara Abel<\/h4>\n\n\n\n<p>D.Sc.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"424\" height=\"568\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Regis.png\" alt=\"\" class=\"wp-image-4616\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Regis.png 424w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Regis-224x300.png 224w\" sizes=\"auto, (max-width: 424px) 100vw, 424px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Regis Kruel Romeu<\/h4>\n\n\n\n<p>D.Sc.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"960\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/caua.png\" alt=\"\" class=\"wp-image-4663\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/caua.png 720w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/caua-225x300.png 225w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Cau\u00e3 Roca Antunes<\/h4>\n\n\n\n<p>Ph.D.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Nicolau-1-768x1024.png\" alt=\"\" class=\"wp-image-4622\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Nicolau-1-768x1024.png 768w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Nicolau-1-225x300.png 225w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Nicolau-1-1152x1536.png 1152w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Nicolau-1-1536x2048.png 1536w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/Nicolau-1.png 1800w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Nicolau Oyhenard dos Santos<\/h4>\n\n\n\n<p>Ph.D. candidate<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"800\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/haroldo.png\" alt=\"\" class=\"wp-image-4619\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/haroldo.png 600w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/haroldo-225x300.png 225w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Haroldo Rojas de Souza Silva<\/h4>\n\n\n\n<p>Ph.D. candidate<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/rhpetry-768x1024.jpg\" alt=\"\" class=\"wp-image-4623\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/rhpetry-768x1023.jpg 768w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/rhpetry-225x300.jpg 225w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/rhpetry-1153x1536.jpg 1153w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/rhpetry-1537x2048.jpg 1537w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/rhpetry.jpg 1879w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Rafael Humann Petry<\/h4>\n\n\n\n<p>M.Sc. Student<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group wp-container-content-69bc4bdf is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"1024\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/livia_3x4-759x1024.jpg\" alt=\"\" class=\"wp-image-4624\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/livia_3x4-759x1024.jpg 759w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/livia_3x4-222x300.jpg 222w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/livia_3x4-768x1036.jpg 768w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/livia_3x4-1138x1536.jpg 1138w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/livia_3x4.jpg 1320w\" sizes=\"auto, (max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">L\u00edvia Cristina Silva do Nascimento<\/h4>\n\n\n\n<p>M.Sc. Student<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"763\" height=\"1024\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-763x1024.jpeg\" alt=\"\" class=\"wp-image-4620\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-763x1024.jpeg 763w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-223x300.jpeg 223w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-768x1031.jpeg 768w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-1144x1536.jpeg 1144w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-1526x2048.jpeg 1526w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/gustavo_alexsandro-3x4-1-scaled.jpeg 1907w\" sizes=\"auto, (max-width: 763px) 100vw, 763px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Gustavo Alexsandro de Lima<\/h4>\n\n\n\n<p>M.Sc. Student<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"1280\" src=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/estevan.png\" alt=\"\" class=\"wp-image-4629\" srcset=\"https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/estevan.png 960w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/estevan-225x300.png 225w, https:\/\/www.inf.ufrgs.br\/ontokg\/wp-content\/uploads\/2025\/11\/estevan-768x1024.png 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Estevan Zanetti K\u00fcster<\/h4>\n\n\n\n<p>B.Sc. Student<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Objectives<\/h2>\n\n\n\n<p>A robust semantic foundation is essential for structuring and interconnecting the project&#8217;s information assets in a way that enables meaningful queries and system integration. The main objective of this group is to develop the domain ontology required for the project. It is also responsible for proposing strategies to represent complementary entities, such as location information, events, and other relevant metadata, as well as structuring the knowledge graph that will materialize the instantiated ontology, in order to enable semantic queries and integration with other system tools.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Results and Contributions<\/h2>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<p><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<p><\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What we are currently working on<\/h2>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<p><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<p><\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Team Mara Abel D.Sc. Regis Kruel Romeu D.Sc. Cau\u00e3 Roca Antunes Ph.D. Nicolau Oyhenard dos Santos Ph.D. candidate Haroldo Rojas de Souza Silva Ph.D. candidate Rafael Humann Petry M.Sc. Student L\u00edvia Cristina Silva do Nascimento M.Sc. Student Gustavo Alexsandro de Lima M.Sc. Student Estevan Zanetti K\u00fcster B.Sc. Student Objectives A robust semantic foundation is essential [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4420","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ontologies and Knowledge Graphs - ontokg<\/title>\n<meta name=\"description\" content=\"Information about the Ontologies and Knowledge Graphs team on the OntoKG project. 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