Search Results for author: Svitlana Volkova

Found 30 papers, 5 papers with code

Foundation Models of Scientific Knowledge for Chemistry: Opportunities, Challenges and Lessons Learned

1 code implementation BigScience (ACL) 2022 Sameera Horawalavithana, Ellyn Ayton, Shivam Sharma, Scott Howland, Megha Subramanian, Scott Vasquez, Robin Cosbey, Maria Glenski, Svitlana Volkova

Foundation models pre-trained on large corpora demonstrate significant gains across many natural language processing tasks and domains e. g., law, healthcare, education, etc.

Understanding and Explicitly Measuring Linguistic and Stylistic Properties of Deception via Generation and Translation

no code implementations INLG (ACL) 2020 Emily Saldanha, Aparna Garimella, Svitlana Volkova

We perform multi-dimensional evaluation of model performance on mimicking both the style and linguistic differences that distinguish news of different credibility using machine translation metrics and classification models.

Machine Translation Style Transfer +1

Anticipating Technical Expertise and Capability Evolution in Research Communities using Dynamic Graph Transformers

1 code implementation18 Jul 2023 Sameera Horawalavithana, Ellyn Ayton, Anastasiya Usenko, Robin Cosbey, Svitlana Volkova

The ability to anticipate technical expertise and capability evolution trends globally is essential for national and global security, especially in safety-critical domains like nuclear nonproliferation (NN) and rapidly emerging fields like artificial intelligence (AI).

Link Prediction Relational Reasoning

EXPERT: Public Benchmarks for Dynamic Heterogeneous Academic Graphs

1 code implementation14 Apr 2022 Sameera Horawalavithana, Ellyn Ayton, Anastasiya Usenko, Shivam Sharma, Jasmine Eshun, Robin Cosbey, Maria Glenski, Svitlana Volkova

Machine learning models that learn from dynamic graphs face nontrivial challenges in learning and inference as both nodes and edges change over time.

Unsupervised Keyphrase Extraction via Interpretable Neural Networks

1 code implementation15 Mar 2022 Rishabh Joshi, Vidhisha Balachandran, Emily Saldanha, Maria Glenski, Svitlana Volkova, Yulia Tsvetkov

Keyphrase extraction aims at automatically extracting a list of "important" phrases representing the key concepts in a document.

Keyphrase Extraction Topic Classification

Evaluating Deception Detection Model Robustness To Linguistic Variation

no code implementations NAACL (SocialNLP) 2021 Maria Glenski, Ellyn Ayton, Robin Cosbey, Dustin Arendt, Svitlana Volkova

With the increasing use of machine-learning driven algorithmic judgements, it is critical to develop models that are robust to evolving or manipulated inputs.

Adversarial Defense Deception Detection +1

Towards Trustworthy Deception Detection: Benchmarking Model Robustness across Domains, Modalities, and Languages

no code implementations RDSM (COLING) 2020 Maria Glenski, Ellyn Ayton, Robin Cosbey, Dustin Arendt, Svitlana Volkova

Our analyses reveal a significant drop in performance when testing neural models on out-of-domain data and non-English languages that may be mitigated using diverse training data.

Benchmarking Deception Detection +2

Evaluating Neural Model Robustness for Machine Comprehension

no code implementations EACL 2021 Winston Wu, Dustin Arendt, Svitlana Volkova

We evaluate neural model robustness to adversarial attacks using different types of linguistic unit perturbations {--} character and word, and propose a new method for strategic sentence-level perturbations.

Adversarial Attack Reading Comprehension +2

Hokey Pokey Causal Discovery: Using Deep Learning Model Errors to Learn Causal Structure

no code implementations1 Jan 2021 Emily Saldanha, Dustin Arendt, Svitlana Volkova

Many existing algorithms for the discovery of causal structure from observational data rely on evaluating the conditional independence relationships among features to account for the effects of confounding.

Causal Discovery

Evaluating Neural Machine Comprehension Model Robustness to Noisy Inputs and Adversarial Attacks

no code implementations1 May 2020 Winston Wu, Dustin Arendt, Svitlana Volkova

We evaluate machine comprehension models' robustness to noise and adversarial attacks by performing novel perturbations at the character, word, and sentence level.

Reading Comprehension Sentence

Improved Forecasting of Cryptocurrency Price using Social Signals

no code implementations1 Jul 2019 Maria Glenski, Tim Weninger, Svitlana Volkova

Social media signals have been successfully used to develop large-scale predictive and anticipatory analytics.

RuSentiment: An Enriched Sentiment Analysis Dataset for Social Media in Russian

no code implementations COLING 2018 Anna Rogers, Alexey Romanov, Anna Rumshisky, Svitlana Volkova, Mikhail Gronas, Alex Gribov

This paper presents RuSentiment, a new dataset for sentiment analysis of social media posts in Russian, and a new set of comprehensive annotation guidelines that are extensible to other languages.

Active Learning General Classification +2

Identifying and Understanding User Reactions to Deceptive and Trusted Social News Sources

no code implementations ACL 2018 Maria Glenski, Tim Weninger, Svitlana Volkova

In the age of social news, it is important to understand the types of reactions that are evoked from news sources with various levels of credibility.

Intrinsic and Extrinsic Evaluation of Spatiotemporal Text Representations in Twitter Streams

no code implementations WS 2017 Lawrence Phillips, Kyle Shaffer, Dustin Arendt, Nathan Hodas, Svitlana Volkova

Language in social media is a dynamic system, constantly evolving and adapting, with words and concepts rapidly emerging, disappearing, and changing their meaning.

Representation Learning Type prediction

Separating Facts from Fiction: Linguistic Models to Classify Suspicious and Trusted News Posts on Twitter

no code implementations ACL 2017 Svitlana Volkova, Kyle Shaffer, Jin Yea Jang, Nathan Hodas

In this work we build predictive models to classify 130 thousand news posts as suspicious or verified, and predict four sub-types of suspicious news {--} satire, hoaxes, clickbait and propaganda.

Deception Detection

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