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Main Authors: Pommeret, Luc, Wagret, Thibault, Deret, Jules
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.05564
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author Pommeret, Luc
Wagret, Thibault
Deret, Jules
author_facet Pommeret, Luc
Wagret, Thibault
Deret, Jules
contents We describe THIVLVC, a two-stage system for the EvaLatin 2026 Dependency Parsing task. Given a Latin sentence, we retrieve structurally similar entries from the CIRCSE treebank using sentence length and POS n-gram similarity, then prompt a large language model to refine the baseline parse from UDPipe using the retrieved examples and UD annotation guidelines. We submit two configurations: one without retrieval and one with retrieval (RAG). On poetry (Seneca), THIVLVC improves CLAS by +17 points over the UDPipe baseline; on prose (Thomas Aquinas), the gain is +1.5 CLAS. A double-blind error analysis of 300 divergences between our system and the gold standard reveals that, among unanimous annotator decisions, 53.3% favour THIVLVC, showing annotation inconsistencies both within and across treebanks.
format Preprint
id arxiv_https___arxiv_org_abs_2604_05564
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle THIVLVC: Retrieval Augmented Dependency Parsing for Latin
Pommeret, Luc
Wagret, Thibault
Deret, Jules
Computation and Language
We describe THIVLVC, a two-stage system for the EvaLatin 2026 Dependency Parsing task. Given a Latin sentence, we retrieve structurally similar entries from the CIRCSE treebank using sentence length and POS n-gram similarity, then prompt a large language model to refine the baseline parse from UDPipe using the retrieved examples and UD annotation guidelines. We submit two configurations: one without retrieval and one with retrieval (RAG). On poetry (Seneca), THIVLVC improves CLAS by +17 points over the UDPipe baseline; on prose (Thomas Aquinas), the gain is +1.5 CLAS. A double-blind error analysis of 300 divergences between our system and the gold standard reveals that, among unanimous annotator decisions, 53.3% favour THIVLVC, showing annotation inconsistencies both within and across treebanks.
title THIVLVC: Retrieval Augmented Dependency Parsing for Latin
topic Computation and Language
url https://arxiv.org/abs/2604.05564