Corplus: A new concordancer for exploring authentic texts with language corrections

This paper introduces a newly developed specialised Corplus concordancer designed to work with corpora containing annotated language corrections. Unlike traditional concordancers, which focus on retrieving linguistic patterns and frequency data from various types of corpora, this tool emphasises the retrieval and comparison of both erroneous and corrected forms within texts. It allows researchers and educators to track, analyse, and compare errors alongside their corrections, providing empirical data that can be applied to first- or second-language acquisition research, as well as applied linguistics, such as the development of language learning materials. The intuitive interface of the Corplus concordancer makes it suitable for classroom use, supporting data-driven learning and other approaches based on authentic language data. The Corplus concordancer has already been implemented to provide access to two Slovene corpora: the developmental corpus Šolar and the learner corpus KOST. The tool is programmed in a way to support a variety of languages and corpus types.