activity
20172026
most citedUnderstanding Optical Music Recognition

108 citations · 196 across the 18 of their papers we have counts for

collaborators

19 papers

cs.CV2026

Towards a foundational model for recognising diastematic Gregorian notation

Daniel Kurek, Jan Hajič

Optical recognition of Gregorian notation has recently been attempted with end-to-end methods, with four datasets introduced. However, each of these datasets is in a different enco…

cs.CL2026

MorfFlex: Handling Rich Morphology

Jaroslava Hlaváčová, Marie Mikulová, Barbora Štěpánková +2

We present MorfFlex, a morphological dictionary architecture suitable for languages with extensive regularity in both inflection and derivation. As the primary example of MorfFlex…

cs.CL2026

Meet UD_Czech-PDTC: A Large and Genre-Rich Treebank in Universal Dependencies

Marie Mikulová, Barbora Štěpánková, Daniel Zeman +3

Czech has been part of Universal Dependencies since its first release in 2015. It has also been one of the best represented languages, with the Prague Dependency Treebank being ord…

cs.CL2026

Prague Dependency Treebank -- Consolidated 2.0: Enriching a Complex Annotation Scheme

Marie Mikulová, Jiří Mírovský, Milan Straka +4

The Prague Dependency Treebank framework is unique in its attempt to systematically include and link different layers of language, including a meaning representation with several t…

cs.CL2023★ 1 cited

Widely Interpretable Semantic Representation: Frameless Meaning Representation for Broader Applicability

Lydia Feng, Gregor Williamson, Han He +1

This paper presents a novel semantic representation, WISeR, that overcomes challenges for Abstract Meaning Representation (AMR). Despite its strengths, AMR is not easily applied to…

cs.CL2023

Quality and Efficiency of Manual Annotation: Pre-annotation Bias

Marie Mikulová, Milan Straka, Jan Štěpánek +2

This paper presents an analysis of annotation using an automatic pre-annotation for a mid-level annotation complexity task -- dependency syntax annotation. It compares the annotati…

cs.CL2023★ 2 cited

Extending an Event-type Ontology: Adding Verbs and Classes Using Fine-tuned LLMs Suggestions

Jana Straková, Eva Fučíková, Jan Hajič +1

In this project, we have investigated the use of advanced machine learning methods, specifically fine-tuned large language models, for pre-annotating data for a lexical extension t…

cs.CL2023

What's the Meaning of Superhuman Performance in Today's NLU?

Simone Tedeschi, Johan Bos, Thierry Declerck +9

In the last five years, there has been a significant focus in Natural Language Processing (NLP) on developing larger Pretrained Language Models (PLMs) and introducing benchmarks su…

cs.CL2020★ 11 cited

Prague Dependency Treebank -- Consolidated 1.0

Jan Hajič, Eduard Bejček, Jaroslava Hlaváčová +4

We present a richly annotated and genre-diversified language resource, the Prague Dependency Treebank-Consolidated 1.0 (PDT-C 1.0), the purpose of which is - as it always been the…

cs.CL2020★ 9 cited

European Language Grid: An Overview

Georg Rehm, Maria Berger, Ela Elsholz +33

With 24 official EU and many additional languages, multilingualism in Europe and an inclusive Digital Single Market can only be enabled through Language Technologies (LTs). Europea…

cs.CL2019

Czech Text Processing with Contextual Embeddings: POS Tagging, Lemmatization, Parsing and NER

Milan Straka, Jana Straková, Jan Hajič

Contextualized embeddings, which capture appropriate word meaning depending on context, have recently been proposed. We evaluate two meth ods for precomputing such embeddings, BERT…

cs.CL2019★ 38 cited

Evaluating Contextualized Embeddings on 54 Languages in POS Tagging, Lemmatization and Dependency Parsing

Milan Straka, Jana Straková, Jan Hajič

We present an extensive evaluation of three recently proposed methods for contextualized embeddings on 89 corpora in 54 languages of the Universal Dependencies 2.3 in three tasks:…

cs.CL2019

UDPipe at SIGMORPHON 2019: Contextualized Embeddings, Regularization with Morphological Categories, Corpora Merging

Milan Straka, Jana Straková, Jan Hajič

We present our contribution to the SIGMORPHON 2019 Shared Task: Crosslinguality and Context in Morphology, Task 2: contextual morphological analysis and lemmatization. We submitted…

cs.CL2019★ 10 cited

Neural Architectures for Nested NER through Linearization

Jana Straková, Milan Straka, Jan Hajič

We propose two neural network architectures for nested named entity recognition (NER), a setting in which named entities may overlap and also be labeled with more than one label. W…

cs.CV2019★ 108 cited

Understanding Optical Music Recognition

Jorge Calvo-Zaragoza, Jan Hajič, Alexander Pacha

For over 50 years, researchers have been trying to teach computers to read music notation, referred to as Optical Music Recognition (OMR). However, this field is still difficult to…

cs.SD2018★ 1 cited

Attention as a Perspective for Learning Tempo-invariant Audio Queries

Matthias Dorfer, Jan Hajič, Gerhard Widmer

Current models for audio--sheet music retrieval via multimodal embedding space learning use convolutional neural networks with a fixed-size window for the input audio. Depending on…

cs.CL2018

LemmaTag: Jointly Tagging and Lemmatizing for Morphologically-Rich Languages with BRNNs

Daniel Kondratyuk, Tomáš Gavenčiak, Milan Straka +1

We present LemmaTag, a featureless neural network architecture that jointly generates part-of-speech tags and lemmas for sentences by using bidirectional RNNs with character-level…

cs.CV2017★ 11 cited

Detecting Noteheads in Handwritten Scores with ConvNets and Bounding Box Regression

Jan Hajič, Pavel Pecina

Noteheads are the interface between the written score and music. Each notehead on the page signifies one note to be played, and detecting noteheads is thus an unavoidable step for…

cs.CV2017★ 5 cited

In Search of a Dataset for Handwritten Optical Music Recognition: Introducing MUSCIMA++

Jan Hajič, Pavel Pecina

Optical Music Recognition (OMR) has long been without an adequate dataset and ground truth for evaluating OMR systems, which has been a major problem for establishing a state of th…