CAISA Lab

Publications

Recent publications

2021

AEDA: An Easier Data Augmentation Technique for Text Classification

Akbar Karimi, Leonardo Rossi, Andrea Prati

arXiv  ·  31 Aug 2021

Recursively Refined R-CNN: Instance Segmentation with Self-RoI Rebalancing

Leonardo Rossi, Akbar Karimi, Andrea Prati

arXiv  ·  03 Aug 2021

Context Transformer with Stacked Pointer Networks for Conversational Question Answering over Knowledge Graphs

Joan Plepi, Endri Kacupaj, Kuldeep Singh, Harsh Thakkar, Jens Lehmann

Eighteenth Extended Semantic Web Conference - Research Track  ·  05 May 2021

Suicide Ideation Detection via Social and Temporal User Representations using Hyperbolic Learning

Ramit Sawhney, Harshit Joshi, Rajiv Ratn Shah, Lucie Flek

Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics  ·  05 May 2021

UniParma at SemEval-2021 Task 5: Toxic Spans Detection Using CharacterBERT and Bag-of-Words Model

Akbar Karimi, Leonardo Rossi, Andrea Prati

arXiv  ·  12 Apr 2021

Improving BERT Performance for Aspect-Based Sentiment Analysis

Akbar Karimi, Leonardo Rossi, Andrea Prati

arXiv  ·  02 Mar 2021

Exploring Self-Identified Counseling Expertise in Online Support Forums

Allison Lahnala, Yuntian Zhao, Charles Welch, Jonathan K. Kummerfeld, Lawrence C An, Kenneth Resnicow, Rada Mihalcea, Verónica Pérez-Rosas

Association for Computational Linguistics (ACL)  ·  01 Jan 2021

Conversational Question Answering over Knowledge Graphs with Transformer and Graph Attention Networks

Joan Plepi, Endri Kacupaj, Kuldeep Singh, Harsh Thakkar, Jens Lehmann, Maria Maleshkova

European Chapter of the Association for Computational Linguistics (EACL)  ·  01 Jan 2021

PHASE: Learning Emotional Phase-aware Representations for Suicide Ideation Detection on Social Media

Ramit Sawhney, Harshit Joshi, Rajiv Ratn Shah, Lucie Flek

European Chapter of the Association for Computational Linguistics (EACL)  ·  01 Jan 2021

2020

Adversarial Training for Aspect-Based Sentiment Analysis with BERT

Akbar Karimi, Leonardo Rossi, Andrea Prati

arXiv  ·  26 Oct 2020

A novel Region of Interest Extraction Layer for Instance Segmentation

Leonardo Rossi, Akbar Karimi, Andrea Prati

arXiv  ·  02 Oct 2020

Expressive Interviewing: A Conversational System for Coping with COVID-19

Charles Welch, Allison Lahnala, Verónica Pérez-Rosas, Siqi Shen, Sarah Seraj, Larry An, Kenneth Resnicow, James Pennebaker, Rada Mihalcea

arXiv  ·  09 Jul 2020

A constrained optimization algorithm for learning GloVe embeddings with semantic lexicons

Flora Sakketou, Nicholas Ampazis

Knowledge-Based Systems  ·  01 May 2020

Deep Multimodal Image-Text Embeddings for Automatic Cross-Media Retrieval

Hadi Abdi Khojasteh, Ebrahim Ansari, Parvin Razzaghi, Akbar Karimi

arXiv  ·  28 Feb 2020

Common Conversational Community Prototype: Scholarly Conversational Assistant

Krisztian Balog, Lucie Flekova, Matthias Hagen, Rosie Jones, Martin Potthast, Filip Radlinski, Mark Sanderson, Svitlana Vakulenko, Hamed Zamani

arXiv  ·  22 Jan 2020

Exploring the Value of Personalized Word Embeddings

Charles Welch, Jonathan K. Kummerfeld, Verónica Pérez-Rosas, Rada Mihalcea

Association for Computational Linguistics (ACL)  ·  01 Jan 2020

Compositional Demographic Word Embeddings

Charles Welch, Jonathan K. Kummerfeld, Verónica Pérez-Rosas, Rada Mihalcea

Association for Computational Linguistics (ACL)  ·  01 Jan 2020

Improving Low Compute Language Modeling with In-Domain Embedding Initialisation

Charles Welch, Rada Mihalcea, Jonathan K. Kummerfeld

Association for Computational Linguistics (ACL)  ·  01 Jan 2020

A Hessian Free Neural Networks Training Algorithm with Curvature Scaled Adaptive Momentum

Flora Sakketou, Nicholas Ampazis

Lecture Notes in Computer Science  ·  01 Jan 2020

Returning the N to NLP: Towards Contextually Personalized Classification Models

Lucie Flek

Association for Computational Linguistics (ACL)  ·  01 Jan 2020

2019

A Matrix Factorization Algorithm for Efficient Recommendations in Social Rating Networks Using Constrained Optimization

Nicholas Ampazis, Theodoros Emmanouilidis, Flora Sakketou

Machine Learning and Knowledge Extraction  ·  11 Aug 2019

Learning From Personal Longitudinal Dialog Data

Charles Welch, Veronica Perez-Rosas, Jonathan K. Kummerfeld, Rada Mihalcea, Erik Cambria

IEEE Intelligent Systems  ·  01 Jul 2019

Look Who's Talking: Inferring Speaker Attributes from Personal Longitudinal Dialog

Charles Welch, Verónica Pérez-Rosas, Jonathan K. Kummerfeld, Rada Mihalcea

arXiv  ·  29 Apr 2019

Extracting an English-Persian Parallel Corpus from Comparable Corpora

Akbar Karimi, Ebrahim Ansari, Bahram Sadeghi Bigham

arXiv  ·  02 Apr 2019

On the Invariance of the SELU Activation Function on Algorithm and Hyperparameter Selection in Neural Network Recommenders

Flora Sakketou, Nicholas Ampazis

IFIP Advances in Information and Communication Technology  ·  01 Jan 2019

2018

Proceedings of the second workshop on stylistic variation

Julian Brooke, Lucie Flekova, Moshe Koppel, Thamar Solorio

Association for Computational Linguistics  ·  01 Jun 2018

Generating Recommendations by Graph Traversal in Social Rating Networks

Flora Sakketou, Nicholas Ampazis, Dimosthenis Drivaliaris

Association for Computing Machinery (ACM)  ·  01 Jan 2018

The impact of actively open-minded thinking on social media communication

Jordan Carpenter, Daniel Preotiuc-Pietro, Jenna Clark, Lucie Flekova, Laura Smith, Margaret L Kern, Anneke Buffone, Lyle Ungar, Martin Seligman

Judgment and Decision Making  ·  01 Jan 2018

Changes in Psycholinguistic Attributes of Social Media Users Before, During, and After Self-Reported Influenza Symptoms

Lucie Flekova, Vasileios Lampos, Ingemar Cox

Association for Computational Linguistics (ACL)  ·  01 Jan 2018