NameTag is available in the following versions:

• NameTag 3:
  • NER tool for both flat and nested named entity recognition,
  • fine-tuned LLM with either a softmax classification head for flat NER or a seq2seq decoding head for nested NER,
  • NameTag 3 is available as a commandline Python script, as a web application, and NameTag REST Web Service hosted by LINDAT/CLARIN.

• NameTag 2:
  • NER tool,
  • uses frozen BERT contextualized word embeddings with LSTM contextualization layer,
  • recognizes both flat and nested named entities of arbitrary depth, depending on the trained model,
  • NameTag 2 is available as a web application NameTag Web Application, and NameTag REST Web Service hosted by LINDAT/CLARIN.

• NameTag 1:
  • fast and robust NER tool,
  • feedforward neural network,
  • recognizes flat named entities,
  • available as commandline tool, C++ source code, with bindings in Perl, Python and C#,
  • NameTag 1 is available as a web application NameTag Web Application, and NameTag REST Web Service hosted by LINDAT/CLARIN.