no code implementations • 18 Jan 2023 • Vlad Niculae, Caio F. Corro, Nikita Nangia, Tsvetomila Mihaylova, André F. T. Martins
Many types of data from fields including natural language processing, computer vision, and bioinformatics, are well represented by discrete, compositional structures such as trees, sequences, or matchings.
1 code implementation • 8 Feb 2022 • Tsvetomila Mihaylova, Vlad Niculae, André F. T. Martins
In this paper, we combine the representational strengths of factor graphs and of neural networks, proposing undirected neural networks (UNNs): a flexible framework for specifying computations that can be performed in any order.
no code implementations • SemEval (ACL) 2016 • Tsvetomila Mihaylova, Pepa Gencheva, Martin Boyanov, Ivana Yovcheva, Todor Mihaylov, Momchil Hardalov, Yasen Kiprov, Daniel Balchev, Ivan Koychev, Preslav Nakov, Ivelina Nikolova, Galia Angelova
We present the system we built for participating in SemEval-2016 Task 3 on Community Question Answering.
1 code implementation • EMNLP 2020 • Tsvetomila Mihaylova, Vlad Niculae, André F. T. Martins
Latent structure models are a powerful tool for modeling language data: they can mitigate the error propagation and annotation bottleneck in pipeline systems, while simultaneously uncovering linguistic insights about the data.
1 code implementation • 4 Aug 2019 • Pepa Atanasova, Preslav Nakov, Lluís Màrquez, Alberto Barrón-Cedeño, Georgi Karadzhov, Tsvetomila Mihaylova, Mitra Mohtarami, James Glass
We study the problem of automatic fact-checking, paying special attention to the impact of contextual and discourse information.
no code implementations • ACL 2019 • Andr{\'e} F. T. Martins, Tsvetomila Mihaylova, Nikita Nangia, Vlad Niculae
Latent structure models are a powerful tool for modeling compositional data, discovering linguistic structure, and building NLP pipelines.
3 code implementations • ACL 2019 • Tsvetomila Mihaylova, André F. T. Martins
In the Transformer model, unlike the RNN, the generation of a new word attends to the full sentence generated so far, not only to the last word, and it is not straightforward to apply the scheduled sampling technique.
no code implementations • SEMEVAL 2019 • Tsvetomila Mihaylova, Georgi Karadjov, Pepa Atanasova, Ramy Baly, Mitra Mohtarami, Preslav Nakov
For subtask A, all systems improved over the majority class baseline.
3 code implementations • 8 Mar 2018 • Tsvetomila Mihaylova, Preslav Nakov, Lluis Marquez, Alberto Barron-Cedeno, Mitra Mohtarami, Georgi Karadzhov, James Glass
Community Question Answering (cQA) forums are very popular nowadays, as they represent effective means for communities around particular topics to share information.
1 code implementation • RANLP 2017 • Preslav Nakov, Tsvetomila Mihaylova, Llu{\'\i}s M{\`a}rquez, Yashkumar Shiroya, Ivan Koychev
We address information credibility in community forums, in a setting in which the credibility of an answer posted in a question thread by a particular user has to be predicted.
2 code implementations • 12 Jul 2017 • Georgi Karadjov, Tsvetomila Mihaylova, Yasen Kiprov, Georgi Georgiev, Ivan Koychev, Preslav Nakov
Users posting online expect to remain anonymous unless they have logged in, which is often needed for them to be able to discuss freely on various topics.