Valentin Malykh


2022

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Proceedings of NLP Power! The First Workshop on Efficient Benchmarking in NLP
Tatiana Shavrina | Vladislav Mikhailov | Valentin Malykh | Ekaterina Artemova | Oleg Serikov | Vitaly Protasov
Proceedings of NLP Power! The First Workshop on Efficient Benchmarking in NLP

2021

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Single Example Can Improve Zero-Shot Data Generation
Pavel Burnyshev | Valentin Malykh | Andrey Bout | Ekaterina Artemova | Irina Piontkovskaya
Proceedings of the 14th International Conference on Natural Language Generation

Sub-tasks of intent classification, such as robustness to distribution shift, adaptation to specific user groups and personalization, out-of-domain detection, require extensive and flexible datasets for experiments and evaluation. As collecting such datasets is time- and labor-consuming, we propose to use text generation methods to gather datasets. The generator should be trained to generate utterances that belong to the given intent. We explore two approaches to the generation of task-oriented utterances: in the zero-shot approach, the model is trained to generate utterances from seen intents and is further used to generate utterances for intents unseen during training. In the one-shot approach, the model is presented with a single utterance from a test intent. We perform a thorough automatic, and human evaluation of the intrinsic properties of two-generation approaches. The attributes of the generated data are close to original test sets, collected via crowd-sourcing.

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InFoBERT: Zero-Shot Approach to Natural Language Understanding Using Contextualized Word Embedding
Pavel Burnyshev | Andrey Bout | Valentin Malykh | Irina Piontkovskaya
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021)

Natural language understanding is an important task in modern dialogue systems. It becomes more important with the rapid extension of the dialogue systems’ functionality. In this work, we present an approach to zero-shot transfer learning for the tasks of intent classification and slot-filling based on pre-trained language models. We use deep contextualized models feeding them with utterances and natural language descriptions of user intents to get text embeddings. These embeddings then used by a small neural network to produce predictions for intent and slot probabilities. This architecture achieves new state-of-the-art results in two zero-shot scenarios. One is a single language new skill adaptation and another one is a cross-lingual adaptation.

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Multiple Teacher Distillation for Robust and Greener Models
Artur Ilichev | Nikita Sorokin | Irina Piontkovskaya | Valentin Malykh
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021)

The language models nowadays are in the center of natural language processing progress. These models are mostly of significant size. There are successful attempts to reduce them, but at least some of these attempts rely on randomness. We propose a novel distillation procedure leveraging on multiple teachers usage which alleviates random seed dependency and makes the models more robust. We show that this procedure applied to TinyBERT and DistilBERT models improves their worst case results up to 2% while keeping almost the same best-case ones. The latter fact keeps true with a constraint on computational time, which is important to lessen the carbon footprint. In addition, we present the results of an application of the proposed procedure to a computer vision model ResNet, which shows that the statement keeps true in this totally different domain.

2020

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SumTitles: a Summarization Dataset with Low Extractiveness
Valentin Malykh | Konstantin Chernis | Ekaterina Artemova | Irina Piontkovskaya
Proceedings of the 28th International Conference on Computational Linguistics

The existing dialogue summarization corpora are significantly extractive. We introduce a methodology for dataset extractiveness evaluation and present a new low-extractive corpus of movie dialogues for abstractive text summarization along with baseline evaluation. The corpus contains 153k dialogues and consists of three parts: 1) automatically aligned subtitles, 2) automatically aligned scenes from scripts, and 3) manually aligned scenes from scripts. We also present an alignment algorithm which we use to construct the corpus.

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RussianSuperGLUE: A Russian Language Understanding Evaluation Benchmark
Tatiana Shavrina | Alena Fenogenova | Emelyanov Anton | Denis Shevelev | Ekaterina Artemova | Valentin Malykh | Vladislav Mikhailov | Maria Tikhonova | Andrey Chertok | Andrey Evlampiev
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)

In this paper, we introduce an advanced Russian general language understanding evaluation benchmark – Russian SuperGLUE. Recent advances in the field of universal language models and transformers require the development of a methodology for their broad diagnostics and testing for general intellectual skills - detection of natural language inference, commonsense reasoning, ability to perform simple logical operations regardless of text subject or lexicon. For the first time, a benchmark of nine tasks, collected and organized analogically to the SuperGLUE methodology, was developed from scratch for the Russian language. We also provide baselines, human level evaluation, open-source framework for evaluating models, and an overall leaderboard of transformer models for the Russian language. Besides, we present the first results of comparing multilingual models in the translated diagnostic test set and offer the first steps to further expanding or assessing State-of-the-art models independently of language.

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Humans Keep It One Hundred: an Overview of AI Journey
Tatiana Shavrina | Anton Emelyanov | Alena Fenogenova | Vadim Fomin | Vladislav Mikhailov | Andrey Evlampiev | Valentin Malykh | Vladimir Larin | Alex Natekin | Aleksandr Vatulin | Peter Romov | Daniil Anastasiev | Nikolai Zinov | Andrey Chertok
Proceedings of the 12th Language Resources and Evaluation Conference

Artificial General Intelligence (AGI) is showing growing performance in numerous applications - beating human performance in Chess and Go, using knowledge bases and text sources to answer questions (SQuAD) and even pass human examination (Aristo project). In this paper, we describe the results of AI Journey, a competition of AI-systems aimed to improve AI performance on knowledge bases, reasoning and text generation. Competing systems pass the final native language exam (in Russian), including versatile grammar tasks (test and open questions) and an essay, achieving a high score of 69%, with 68% being an average human result. During the competition, a baseline for the task and essay parts was proposed, and 80+ systems were submitted, showing different approaches to task understanding and reasoning. All the data and solutions can be found on github https://github.com/sberbank-ai/combined_solution_aij2019

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Proceedings of the 3rd Workshop on Technologies for MT of Low Resource Languages
Alina Karakanta | Atul Kr. Ojha | Chao-Hong Liu | Jade Abbott | John Ortega | Jonathan Washington | Nathaniel Oco | Surafel Melaku Lakew | Tommi A Pirinen | Valentin Malykh | Varvara Logacheva | Xiaobing Zhao
Proceedings of the 3rd Workshop on Technologies for MT of Low Resource Languages

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Findings of the LoResMT 2020 Shared Task on Zero-Shot for Low-Resource languages
Atul Kr. Ojha | Valentin Malykh | Alina Karakanta | Chao-Hong Liu
Proceedings of the 3rd Workshop on Technologies for MT of Low Resource Languages

This paper presents the findings of the LoResMT 2020 Shared Task on zero-shot translation for low resource languages. This task was organised as part of the 3rd Workshop on Technologies for MT of Low Resource Languages (LoResMT) at AACL-IJCNLP 2020. The focus was on the zero-shot approach as a notable development in Neural Machine Translation to build MT systems for language pairs where parallel corpora are small or even non-existent. The shared task experience suggests that back-translation and domain adaptation methods result in better accuracy for small-size datasets. We further noted that, although translation between similar languages is no cakewalk, linguistically distinct languages require more data to give better results.

2019

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AspeRa: Aspect-Based Rating Prediction Based on User Reviews
Elena Tutubalina | Valentin Malykh | Sergey Nikolenko | Anton Alekseev | Ilya Shenbin
Proceedings of the 2019 Workshop on Widening NLP

We propose a novel Aspect-based Rating Prediction model (AspeRa) that estimates user rating based on review texts for the items. It is based on aspect extraction with neural networks and combines the advantages of deep learning and topic modeling. It is mainly designed for recommendations, but an important secondary goal of AspeRa is to discover coherent aspects of reviews that can be used to explain predictions or for user profiling. We conduct a comprehensive empirical study of AspeRa, showing that it outperforms state-of-the-art models in terms of recommendation quality and produces interpretable aspects. This paper is an abridged version of our work (Nikolenko et al., 2019)

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Proceedings of the 2nd Workshop on Technologies for MT of Low Resource Languages
Alina Karakanta | Atul Kr. Ojha | Chao-Hong Liu | Jonathan Washington | Nathaniel Oco | Surafel Melaku Lakew | Valentin Malykh | Xiaobing Zhao
Proceedings of the 2nd Workshop on Technologies for MT of Low Resource Languages

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Robust to Noise Models in Natural Language Processing Tasks
Valentin Malykh
Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop

There are a lot of noise texts surrounding a person in modern life. The traditional approach is to use spelling correction, yet the existing solutions are far from perfect. We propose robust to noise word embeddings model, which outperforms existing commonly used models, like fasttext and word2vec in different tasks. In addition, we investigate the noise robustness of current models in different natural language processing tasks. We propose extensions for modern models in three downstream tasks, i.e. text classification, named entity recognition and aspect extraction, which shows improvement in noise robustness over existing solutions.

2018

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DeepPavlov: Open-Source Library for Dialogue Systems
Mikhail Burtsev | Alexander Seliverstov | Rafael Airapetyan | Mikhail Arkhipov | Dilyara Baymurzina | Nickolay Bushkov | Olga Gureenkova | Taras Khakhulin | Yuri Kuratov | Denis Kuznetsov | Alexey Litinsky | Varvara Logacheva | Alexey Lymar | Valentin Malykh | Maxim Petrov | Vadim Polulyakh | Leonid Pugachev | Alexey Sorokin | Maria Vikhreva | Marat Zaynutdinov
Proceedings of ACL 2018, System Demonstrations

Adoption of messaging communication and voice assistants has grown rapidly in the last years. This creates a demand for tools that speed up prototyping of feature-rich dialogue systems. An open-source library DeepPavlov is tailored for development of conversational agents. The library prioritises efficiency, modularity, and extensibility with the goal to make it easier to develop dialogue systems from scratch and with limited data available. It supports modular as well as end-to-end approaches to implementation of conversational agents. Conversational agent consists of skills and every skill can be decomposed into components. Components are usually models which solve typical NLP tasks such as intent classification, named entity recognition or pre-trained word vectors. Sequence-to-sequence chit-chat skill, question answering skill or task-oriented skill can be assembled from components provided in the library.

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Robust Word Vectors: Context-Informed Embeddings for Noisy Texts
Valentin Malykh | Varvara Logacheva | Taras Khakhulin
Proceedings of the 2018 EMNLP Workshop W-NUT: The 4th Workshop on Noisy User-generated Text

We suggest a new language-independent architecture of robust word vectors (RoVe). It is designed to alleviate the issue of typos, which are common in almost any user-generated content, and hinder automatic text processing. Our model is morphologically motivated, which allows it to deal with unseen word forms in morphologically rich languages. We present the results on a number of Natural Language Processing (NLP) tasks and languages for the variety of related architectures and show that proposed architecture is typo-proof.