User profiles for Karel Ondrej

Karel Ondřej

PhD Student / Researcher
Verified email at vutbr.cz
Cited by 186

Neurips 2020 efficientqa competition: Systems, analyses and lessons learned

…, M Fajcik, M Docekal, K Ondrej…�- NeurIPS 2020�…, 2021 - proceedings.mlr.press
We review the EfficientQA competition from NeurIPS 2020. The competition focused on open-domain
question answering (QA), where systems take natural language questions as input …

R2-D2: A modular baseline for open-domain question answering

M Fajcik, M Docekal, K Ondrej, P Smrz�- arXiv preprint arXiv:2109.03502, 2021 - arxiv.org
This work presents a novel four-stage open-domain QA pipeline R2-D2 (Rank twice, reaD
twice). The pipeline is composed of a retriever, passage reranker, extractive reader, …

Bertraffic: Bert-based joint speaker role and speaker change detection for air traffic control communications

…, I Nigmatulina, P Motlicek, K Ondrej…�- 2022 IEEE Spoken�…, 2023 - ieeexplore.ieee.org
Automatic speech recognition (ASR) allows transcribing the communications between air
traffic controllers (ATCOs) and aircraft pilots. The transcriptions are used later to extract ATC …

Pruning the index contents for memory efficient open-domain qa

M Fajcik, M Docekal, K Ondrej, P Smrz�- arXiv preprint arXiv:2102.10697, 2021 - arxiv.org
This work presents a novel pipeline that demonstrates what is achievable with a combined
effort of state-of-the-art approaches. Specifically, it proposes the novel R2-D2 (Rank twice, …

Party Funding in the Czech Republic

C Ondřej, T Petr�- Political Finance and Corruption in Eastern�…, 2016 - taylorfrancis.com
Karel Kobes, the deputy party chairman responsible for party finance, announced on October
1, 1999 that between October 1995 and March 1996 the party had been using chip cards …

Optimized SQE atomic charges for peptides accessible via a web application

S Ondřej, R Tom�š, M Aleksandra…�- Journal of�…, 2021 - search.proquest.com
Background Partial atomic charges find many applications in computational chemistry,
chemoinformatics, bioinformatics, and nanoscience. Currently, frequently used methods for …

Understanding Havel?

D Ondřej, V Handl, N Hynek…�- Communist and Post�…, 2013 - online.ucpress.edu
… Under the influence of close collaborators such as Vondra, Zantovsky, and Karel Schwarzenberg,
but importantly also the still marginal enlargement advocates in Washington centered …

Monitoring of the Setting and early Hardening with Ultrasonic Waves

I Rozsypalov�, O Karel, B Kucharczykov�…�- Key Engineering�…, 2018 - Trans Tech Publ
The paper deals with the experimental investigation aimed at the continual monitoring of the
process of setting and early hardening in cement pastes and mortars using the …

Josef Šnabl, Ondřej Ludv�k and the Artistic Company of 1920: Journeys of Life, Musical Performance and Research.

M Cwach�- Kosmas: Czechoslovak & Central European�…, 2011 - search.ebscohost.com
… The novel, as well as the opera composed by Karel Kovafovic, are works woven of strands
of fact and myth, which has resulted in a web of beliefs that has solidly placed Chodsko in the …

Comparison of measurements methods intended to determination of the shrinkage development in polymer cement mortars

B Kucharczykov�, O Karel, P Daněk, D Koc�b…�- Procedia�…, 2017 - Elsevier
The paper deals with the experimental determination of the shrinkage progress of the polymer
cement (PCC) mortars. The main motivation of performed measurements was to compare …