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Current language models are usually trained using a self-supervised scheme, where the main focus is learning representations at the word or sentence level. However, there has been limited progress in generating useful discourse-level…

Computation and Language · Computer Science 2021-09-13 Vladimir Araujo , Andrés Villa , Marcelo Mendoza , Marie-Francine Moens , Alvaro Soto

We explore advanced fine-tuning techniques to boost BERT's performance in sentiment analysis, paraphrase detection, and semantic textual similarity. Our approach leverages SMART regularization to combat overfitting, improves hyperparameter…

Computation and Language · Computer Science 2024-07-22 Pradyumna Saligram , Andrew Lanpouthakoun

Fine-tuned Bidirectional Encoder Representations from Transformers (BERT)-based sequence classification models have proven to be effective for detecting Alzheimer's Disease (AD) from transcripts of human speech. However, previous research…

Computation and Language · Computer Science 2020-11-13 Aparna Balagopalan , Jekaterina Novikova

Progress in natural language processing (NLP) models that estimate representations of word sequences has recently been leveraged to improve the understanding of language processing in the brain. However, these models have not been…

Neurons and Cognition · Quantitative Biology 2019-11-11 Dan Schwartz , Mariya Toneva , Leila Wehbe

General-purpose pretrained sentence encoders such as BERT are not ideal for real-world conversational AI applications; they are computationally heavy, slow, and expensive to train. We propose ConveRT (Conversational Representations from…

Computation and Language · Computer Science 2020-04-30 Matthew Henderson , Iñigo Casanueva , Nikola Mrkšić , Pei-Hao Su , Tsung-Hsien Wen , Ivan Vulić

The latest work on language representations carefully integrates contextualized features into language model training, which enables a series of success especially in various machine reading comprehension and natural language inference…

Computation and Language · Computer Science 2020-02-05 Zhuosheng Zhang , Yuwei Wu , Hai Zhao , Zuchao Li , Shuailiang Zhang , Xi Zhou , Xiang Zhou

Machine based text comprehension has always been a significant research field in natural language processing. Once a full understanding of the text context and semantics is achieved, a deep learning model can be trained to solve a large…

Computation and Language · Computer Science 2020-09-03 Omar Mossad , Amgad Ahmed , Anandharaju Raju , Hari Karthikeyan , Zayed Ahmed

Pre-trained language models have proven their unique powers in capturing implicit language features. However, most pre-training approaches focus on the word-level training objective, while sentence-level objectives are rarely studied. In…

Computation and Language · Computer Science 2021-01-01 Zhuofeng Wu , Sinong Wang , Jiatao Gu , Madian Khabsa , Fei Sun , Hao Ma

Unsupervised sentence representation learning aims to transform input sentences into fixed-length vectors enriched with intricate semantic information while obviating the reliance on labeled data. Recent strides within this domain have been…

Computation and Language · Computer Science 2024-06-21 Bowen Zhang , Kehua Chang , Chunping Li

In this paper, we fine-tuned three pre-trained BERT models on the task of "definition extraction" from mathematical English written in LaTeX. This is presented as a binary classification problem, where either a sentence contains a…

Computation and Language · Computer Science 2024-07-01 Lucy Horowitz , Ryan Hathaway

We present SpanBERT, a pre-training method that is designed to better represent and predict spans of text. Our approach extends BERT by (1) masking contiguous random spans, rather than random tokens, and (2) training the span boundary…

Computation and Language · Computer Science 2020-01-22 Mandar Joshi , Danqi Chen , Yinhan Liu , Daniel S. Weld , Luke Zettlemoyer , Omer Levy

Low isotropy in an embedding space impairs performance on tasks involving semantic inference. Our study investigates the impact of isotropy on semantic code search performance and explores post-processing techniques to mitigate this issue.…

Computation and Language · Computer Science 2024-11-28 Andor Diera , Lukas Galke , Ansgar Scherp

While there has been much recent work studying how linguistic information is encoded in pre-trained sentence representations, comparatively little is understood about how these models change when adapted to solve downstream tasks. Using a…

Computation and Language · Computer Science 2020-05-01 Amil Merchant , Elahe Rahimtoroghi , Ellie Pavlick , Ian Tenney

Manually labelling large collections of text data is a time-consuming, expensive, and laborious task, but one that is necessary to support machine learning based on text datasets. Active learning has been shown to be an effective way to…

Computation and Language · Computer Science 2019-10-11 Jinghui Lu , Maeve Henchion , Brian Mac Namee

The pre-trained BERT model achieves a remarkable state of the art across a wide range of tasks in natural language processing. For solving the gender bias in gendered pronoun resolution task, I propose a novel neural network model based on…

Computation and Language · Computer Science 2019-08-02 Zili Wang

Large pre-trained sentence encoders like BERT start a new chapter in natural language processing. A common practice to apply pre-trained BERT to sequence classification tasks (e.g., classification of sentences or sentence pairs) is by…

Computation and Language · Computer Science 2020-02-26 Wenxuan Zhou , Junyi Du , Xiang Ren

While BERT is an effective method for learning monolingual sentence embeddings for semantic similarity and embedding based transfer learning (Reimers and Gurevych, 2019), BERT based cross-lingual sentence embeddings have yet to be explored.…

Computation and Language · Computer Science 2022-03-09 Fangxiaoyu Feng , Yinfei Yang , Daniel Cer , Naveen Arivazhagan , Wei Wang

Previous work has shown that the representations output by contextual language models are more anisotropic than static type embeddings, and typically display outlier dimensions. This seems to be true for both monolingual and multilingual…

Computation and Language · Computer Science 2023-06-08 Katharina Hämmerl , Alina Fastowski , Jindřich Libovický , Alexander Fraser

Fine-tuning Large Language Models (LLMs) is now a common approach for text classification in a wide range of applications. When labeled documents are scarce, active learning helps save annotation efforts but requires retraining of massive…

Machine Learning · Computer Science 2024-02-27 Artem Vysogorets , Achintya Gopal

This study aims at solving the Machine Reading Comprehension problem where questions have to be answered given a context passage. The challenge is to develop a computationally faster model which will have improved inference time. State of…

Computation and Language · Computer Science 2019-04-02 Debajyoti Chatterjee