Papers by Daniil Larionov

6 papers
PromptOptMe: Error-Aware Prompt Compression for LLM-based MT Evaluation Metrics (2025.naacl-long)

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Challenge: Recent efforts to improve the quality of machine-generated natural language content have been limited due to the large token usage required by complex evaluation prompts.
Approach: They propose a prompt optimization approach that uses a smaller, fine-tuned language model to compress input data for evaluation prompt, thus reducing token usage and computational cost when using larger LLMs for downstream evaluation.
Outcome: The proposed approach reduces token usage and costs by 2.37 compared with larger LLMs for downstream evaluation.
EffEval: A Comprehensive Evaluation of Efficiency for MT Evaluation Metrics (2023.findings-emnlp)

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Challenge: a recent surge of interest in developing evaluation metrics based on pretrained large language models (LLMs) can better cope with lexical variation.
Approach: They propose to replace computation-intensive transformers with lighter alternatives and employ linear and quadratic approximations for alignment algorithms on top of LLM representations.
Outcome: The proposed approach replaces computation-intensive transformers with lighter alternatives and employs linear and quadratic approximations for alignment algorithms on top of LLM representations.
Active Learning for Sequence Tagging with Deep Pre-trained Models and Bayesian Uncertainty Estimates (2021.eacl-main)

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Challenge: Annotating training data for sequence tagging of texts is usually very time-consuming . active learning can help to reduce the amount of annotation required to train a good model by multiple times .
Approach: They are the first to thoroughly investigate active learning and transfer learning for natural language processing . they propose to combine active learning with active learning to improve model acquisition .
Outcome: The proposed combination of active learning and Bayesian uncertainty estimation improves performance and reduces obstacles for applying it in practice.
ALToolbox: A Set of Tools for Active Learning Annotation of Natural Language Texts (2022.emnlp-demos)

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Challenge: Currently, the framework supports text classification, sequence tagging, and seq2seq tasks.
Approach: They propose an open-source framework for active learning annotation in natural language processing that provides an easy-to-deploy GUI annotation tool directly in the Jupyter IDE.
Outcome: The proposed framework reduces computational overhead and duration of AL iterations and increases annotated data reusability.
xCOMET-lite: Bridging the Gap Between Efficiency and Quality in Learned MT Evaluation Metrics (2024.emnlp-main)

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Challenge: State-of-the-art trainable machine translation evaluation metrics rely on large encoders . this makes them computationally expensive and inaccessible to researchers with limited resources.
Approach: They propose a method to extract knowledge stored in large encoders and a pipeline for efficient black-box distillation.
Outcome: The proposed model surpasses COMET-22 and BLEURT-20 on the WMT22 dataset by 6.4%.
Towards Computationally Feasible Deep Active Learning (2022.findings-naacl)

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Challenge: Active learning (AL) is a technique for reducing the amount of annotation required for training machine learning models.
Approach: They propose two techniques that reduce the amount of time required for AL . they use pseudo-labeling and distilled models to train a successor model .
Outcome: The proposed algorithm reduces the time and computational overhead required to train an acquisition model and estimate uncertainty on instances in the unlabeled pool.

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