Search Results for author: Sowmya Vajjala

Found 29 papers, 8 papers with code

Scope Ambiguities in Large Language Models

2 code implementations5 Apr 2024 Gaurav Kamath, Sebastian Schuster, Sowmya Vajjala, Siva Reddy

Sentences containing multiple semantic operators with overlapping scope often create ambiguities in interpretation, known as scope ambiguities.

World Knowledge

A Multilingual Evaluation of NER Robustness to Adversarial Inputs

no code implementations30 May 2023 Akshay Srinivasan, Sowmya Vajjala

Our results showed the NER models we explored across three languages (English, German and Hindi) are not very robust to such changes, as indicated by the fluctuations in the overall F1 score as well as in a more fine-grained evaluation.

named-entity-recognition Named Entity Recognition +1

Automatic Text Simplification of News Articles in the Context of Public Broadcasting

no code implementations26 Dec 2022 Diego Maupomé, Fanny Rancourt, Thomas Soulas, Alexandre Lachance, Marie-Jean Meurs, Desislava Aleksandrova, Olivier Brochu Dufour, Igor Pontes, Rémi Cardon, Michel Simard, Sowmya Vajjala

This report summarizes the work carried out by the authors during the Twelfth Montreal Industrial Problem Solving Workshop, held at Universit\'e de Montr\'eal in August 2022.

Text Simplification

A Neural Pairwise Ranking Model for Readability Assessment

1 code implementation Findings (ACL) 2022 Justin Lee, Sowmya Vajjala

Automatic Readability Assessment (ARA), the task of assigning a reading level to a text, is traditionally treated as a classification problem in NLP research.

Cross-corpus Text Classification

Trends, Limitations and Open Challenges in Automatic Readability Assessment Research

no code implementations LREC 2022 Sowmya Vajjala

This article is a brief survey of contemporary research on developing computational models for readability assessment.

Teaching NLP outside Linguistics and Computer Science classrooms: Some challenges and some opportunities

no code implementations NAACL (TeachingNLP) 2021 Sowmya Vajjala

NLP's sphere of influence went much beyond computer science research and the development of software applications in the past decade.

Are pre-trained text representations useful for multilingual and multi-dimensional language proficiency modeling?

1 code implementation25 Feb 2021 Taraka Rama, Sowmya Vajjala

Our results indicate that while fine-tuned embeddings are useful for multilingual proficiency modeling, none of the features achieve consistently best performance for all dimensions of language proficiency.

On Understanding the Relation between Expert Annotations of Text Readability and Target Reader Comprehension

1 code implementation WS 2019 Sowmya Vajjala, Ivana Lucic

To address this gap, we conducted a user study in which over a 100 participants read texts of different reading levels and answered questions created to test three forms of comprehension.

Question Generation Question-Generation +2

OneStopEnglish corpus: A new corpus for automatic readability assessment and text simplification

no code implementations WS 2018 Sowmya Vajjala, Ivana Lu{\v{c}}i{\'c}

This paper describes the collection and compilation of the OneStopEnglish corpus of texts written at three reading levels, and demonstrates its usefulness for through two applications - automatic readability assessment and automatic text simplification.

Feature Engineering Text Classification +1

Experiments with Universal CEFR Classification

1 code implementation WS 2018 Sowmya Vajjala, Taraka Rama

The Common European Framework of Reference (CEFR) guidelines describe language proficiency of learners on a scale of 6 levels.

Classification General Classification

The Relevance of Text and Speech Features in Automatic Non-native English Accent Identification

no code implementations16 Apr 2018 Sowmya Vajjala, Ziwei Zhou

This paper describes our experiments with automatically identifying native accents from speech samples of non-native English speakers using low level audio features, and n-gram features from manual transcriptions.

General Classification

Machine Learning and Applied Linguistics

no code implementations24 Mar 2018 Sowmya Vajjala

This entry introduces the topic of machine learning and provides an overview of its relevance for applied linguistics and language learning.

BIG-bench Machine Learning

A study of N-gram and Embedding Representations for Native Language Identification

1 code implementation WS 2017 Sowmya Vajjala, Sagnik Banerjee

We report on our experiments with N-gram and embedding based feature representations for Native Language Identification (NLI) as a part of the NLI Shared Task 2017 (team name: NLI-ISU).

Feature Engineering Language Acquisition +2

Automated assessment of non-native learner essays: Investigating the role of linguistic features

1 code implementation2 Dec 2016 Sowmya Vajjala

While the results show that the feature set used results in good predictive models with both datasets, the question "what are the most predictive features?"

Towards grounding computational linguistic approaches to readability: Modeling reader-text interaction for easy and difficult texts

no code implementations WS 2016 Sowmya Vajjala, Detmar Meurers, Alex Eitel, er, Katharina Scheiter

Computational approaches to readability assessment are generally built and evaluated using gold standard corpora labeled by publishers or teachers rather than being grounded in observations about human performance.

A Readable Read: Automatic Assessment of Language Learning Materials based on Linguistic Complexity

no code implementations29 Mar 2016 Ildikó Pilán, Sowmya Vajjala, Elena Volodina

Corpora and web texts can become a rich language learning resource if we have a means of assessing whether they are linguistically appropriate for learners at a given proficiency level.

Sentence

Readability-based Sentence Ranking for Evaluating Text Simplification

1 code implementation18 Mar 2016 Sowmya Vajjala, Detmar Meurers

We propose a new method for evaluating the readability of simplified sentences through pair-wise ranking.

Cross-corpus Sentence +1

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