{"id":15261,"date":"2020-03-25T17:42:56","date_gmt":"2020-03-25T17:42:56","guid":{"rendered":"https:\/\/www.techopedia.com\/definition\/data-annotation\/"},"modified":"2020-03-25T17:44:51","modified_gmt":"2020-03-25T17:44:51","slug":"data-annotation","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning","title":{"rendered":"Data Annotation"},"content":{"rendered":"<h2><span id=\"what_does_data_annotation_mean\">What Does Data Annotation Mean?<\/span><\/h2>\n<p>Data annotation is a term to describe the labeling of data. Different types of data get annotated in different ways. Text strings can be labeled with various common annotations, where image data is often annotated with colored lines or other markers.<\/p>\n<h2><span id=\"techopedia_explains_data_annotation\">Techopedia Explains Data Annotation<\/span><\/h2>\n<p>The idea of data annotation plays into one of the main concepts in machine learning and data science, which is called &ldquo;labeled data.&rdquo; Labeled data allows machine learning and data science programs to work from pre-existing classifications and inputs.<\/p>\n<p>Data annotation serves to introduce the labeled data to the system and works in various other technologies contexts as well.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does Data Annotation Mean? Data annotation is a term to describe the labeling of data. Different types of data get annotated in different ways. Text strings can be labeled with various common annotations, where image data is often annotated with colored lines or other markers. Techopedia Explains Data Annotation The idea of data annotation [&hellip;]<\/p>\n","protected":false},"author":7813,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","om_disable_all_campaigns":false,"footnotes":""},"definitioncat":[227,270,256,269],"class_list":["post-15261","definition","type-definition","status-publish","format-standard","hentry","definitioncat-data-management","definitioncat-data-science","definitioncat-emerging-technology","definitioncat-machine-learning"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Data Annotation? - Definition from Techopedia<\/title>\n<meta name=\"description\" content=\"This definition explains the meaning of Data Annotation and why it matters.\" \/>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Annotation\" \/>\n<meta property=\"og:description\" content=\"This definition explains the meaning of Data Annotation and why it matters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning\" \/>\n<meta property=\"og:site_name\" content=\"Techopedia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/techopedia\/\" \/>\n<meta property=\"article:modified_time\" content=\"2020-03-25T17:44:51+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@techopedia\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning\"},\"author\":{\"name\":\"Margaret Rouse\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\"},\"headline\":\"Data Annotation\",\"datePublished\":\"2020-03-25T17:42:56+00:00\",\"dateModified\":\"2020-03-25T17:44:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning\"},\"wordCount\":113,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning#respond\"]}],\"articleSection\":\"\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning\",\"url\":\"https:\/\/www.techopedia.com\/definition\/33347\/data-annotation-machine-learning\",\"name\":\"What is Data Annotation? 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