Related Experiment Video
Updated: Jul 17, 2026

CIRCLE-Seq for Interrogation of Off-Target Gene Editing
Published on: November 1, 2024
dTagger: a POS tagger
Guy Divita1, Allen C Browne, Russell Loane
1National Library of Medicine, Bethesda, Maryland, USA.
Abstract:
The Lexical Systems Group at the National Library of Medicine (NLM) has developed a Part-of-Speech (POS) tagger to be freely distributed with the SPECIALIST NLP Tools. dTagger is specifically designed for use with the SPECIALIST lexicon but it can be used with an arbitrary tag set. It is capable of single or multi-word chunking. It is trainable with previously annotated text and in development is a version that is tunable with untagged text. The tagger allows users to add local lexicon content. It can report likelihoods for each sentence tagged. New words seen while tagging (the unknowns) are handled by shape identification including heuristics based on suffix statistics gleaned during the training. The performance of the supervised training is noted to be 95% on a modified version of the MedPost hand annotated Medline abstracts. Eight percent of the terms within this corpus were multi-word entities.
Related Concept Videos
Bone Markings
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
Labeling DNA Probes
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Acid Attack on Concrete
The rate at which hydrogen...
Effects of EDTA on End-Point Detection Methods
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a result, EDTA...
Positron Emission Tomography
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
Aggression

