LiRI Corpus Platform: Demonstration of a Web-Based Infrastructure for Multimodal Corpus Analysis

We present the LiRI Corpus Platform (LCP), a web-based infrastructure for storing, exploring, and analyzing diverse linguistic corpora with a focus on multimodal and audiovisual data. The platform supports synchronized querying of text, speech, and video through unified interfaces and a custom query language (Descriptive Query Definition - DQD). Dedicated frontends enable time-aligned exploration of gesture, audio, and spoken transcripts. LCP is designed to support researchers working with multimodal and annotated datasets, enabling cross-modal queries and layered annotation.