Atomic: an open-source software platform for multi-level corpus annotation.

This paper1 presents Atomic, an opensource2 platform-independent desktop application for multi-level corpus annotation. Atomic aims at providing the linguistic community with a user-friendly annotation tool and sustainable platform through its focus on extensibility, a generic data model, and compatibility with existing linguistic formats. It is implemented on top of the Eclipse Rich Client Platform, a pluggable Java-based framework for creating client applications. Atomic as a set of plugins for this framework integrates with the platform and allows other researchers to develop and integrate further extensions to the software as needed. The generic graphbased meta model Salt serves as Atomic’s domain model and allows for unlimited annotation levels and types. Salt is also used as an intermediate model in the Pepper framework for conversion of linguistic data, which is fully integrated into Atomic, making the latter compatible with a wide range of linguistic formats. Atomic provides tools for both less experienced and expert annotators: graphical, mouse-driven editors and a command-line data manipulation language for rapid annotation. This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). Page numbers and proceedings footer are added by the organizers. License details: http://creativecommons.org/licenses/by/4.0/. Atomic is open source under the Apache License 2.0.