There are 4 repositories under semantic-annotation topic.
Simplest and fastest image and text annotation tool.
Open Source REST API for named entity extraction, named entity linking, named entity disambiguation, recommendation & reconciliation of entities like persons, organizations and places for (semi)automatic semantic tagging & analysis of documents by linked data knowledge graph like SKOS thesaurus, RDF ontology, database(s) or list(s) of names
Surfacing Semantic Data from Clinical Notes in Electronic Health Records for Tailored Care, Trial Recruitment and Clinical Research
Material for VKG2019 tutorial at ESWC2019
Fast dictionary-based approach for semantic annotation / entity linking
Data and source code for a semantic annotation experiment on English specialised texts.
Annotated constituency treebank library
Annotated constituency treebank library
Run experiments using tada-hdt-entity library
Turkish phrase translation of 9557 Penn-Treebank trees (Number of leaves <= 15) and syntactic and semantic annotations of them
Sense-Annotated Corpus for Russian
Rpackage a semantic annotation tool to detect concepts in textual content
smartAPI editor: a tool for semantic annotaion of Web APIs
The ML Algorithms annotator is a Django app for annotating and querying Machine Learning algorithms.
This application annotate numeric columns in tabular data with properties from HDT-compressed knowledge bases.