no code implementations • LTEDI (ACL) 2022 • Nawshad Farruque, Osmar Zaiane, Randy Goebel, Sudhakar Sivapalan
In addition we can use short text classifiers to extract relevant text from the long text and achieve slightly better accuracy, albeit, trading off with the processing time for extracting such excerpts.
3 code implementations • 23 Dec 2023 • Haonan Wang, Peng Cao, Xiaoli Liu, Jinzhu Yang, Osmar Zaiane
Hence, both modules establish a learnable connection to solve the semantic gaps between the encoder and the decoder, which leads to a high-performance segmentation model for medical images.
1 code implementation • 2 Nov 2023 • Amir Salimi, Sunil Vasu Kalmady, Abram Hindle, Osmar Zaiane, Padma Kaul
In this work we apply down-sampling, normalization, and filtering functions to 3 different multi-label ECG datasets and measure their effects on 3 different high-performing time-series classifiers.
no code implementations • 6 Sep 2022 • Nawshad Farruque, Randy Goebel, Sudhakar Sivapalan, Osmar Zaiane
In our work, we describe a Semi-supervised Learning (SSL) framework which uses an initial supervised learning model that leverages 1) a state-of-the-art large mental health forum text pre-trained language model further fine-tuned on a clinician annotated DSD dataset, 2) a Zero-Shot learning model for DSD, and couples them together to harvest depression symptoms related samples from our large self-curated Depression Tweets Repository (DTR).
1 code implementation • 22 Apr 2022 • Nouha Dziri, Ehsan Kamalloo, Sivan Milton, Osmar Zaiane, Mo Yu, Edoardo M. Ponti, Siva Reddy
The goal of information-seeking dialogue is to respond to seeker queries with natural language utterances that are grounded on knowledge sources.
no code implementations • 19 Apr 2022 • Michael Strobl, Amine Trabelsi, Osmar Zaiane
The most common Named Entity Recognizers are usually sequence taggers trained on fully annotated corpora, i. e. the class of all words for all entities is known.
1 code implementation • NAACL 2022 • Nouha Dziri, Sivan Milton, Mo Yu, Osmar Zaiane, Siva Reddy
Knowledge-grounded conversational models are known to suffer from producing factually invalid statements, a phenomenon commonly called hallucination.
1 code implementation • 14 Apr 2022 • Michael Strobl, Amine Trabelsi, Osmar Zaiane
To effectively train accurate Relation Extraction models, sufficient and properly labeled data is required.
no code implementations • 24 Jun 2021 • Nawshad Farruque, Randy Goebel, Osmar Zaiane
We start with a rich word embedding pre-trained from a large general dataset, which is then augmented with embeddings learned from a much smaller and more specific domain dataset through a simple non-linear mapping mechanism.
no code implementations • 21 Jun 2021 • Nawshad Farruque, Randy Goebel, Osmar Zaiane, Sudhakar Sivapalan
We focus on exploring various approaches of Zero-Shot Learning (ZSL) and their explainability for a challenging yet important supervised learning task notorious for training data scarcity, i. e. Depression Symptoms Detection (DSD) from text.
no code implementations • 26 May 2021 • Nawshad Farruque, Chenyang Huang, Osmar Zaiane, Randy Goebel
In this paper, we present empirical analysis on basic and depression specific multi-emotion mining in Tweets with the help of state of the art multi-label classifiers.
1 code implementation • EMNLP 2021 • Nouha Dziri, Andrea Madotto, Osmar Zaiane, Avishek Joey Bose
Dialogue systems powered by large pre-trained language models (LM) exhibit an innate ability to deliver fluent and natural-looking responses.
no code implementations • 4 Jul 2020 • Nitakshi Sood, Osmar Zaiane
We use 15 UCI datasets and compare our approach with eight existing systems. The SigD2 and boosted SigDirect (ACboost) ensemble model outperform various state-of-the-art classifiers not only in terms of classification accuracy but also in terms of the number of rules.
no code implementations • LREC 2020 • Michael Strobl, Amine Trabelsi, Osmar Zaiane
Building predictive models for information extraction from text, such as named entity recognition or the extraction of semantic relationships between named entities in text, requires a large corpus of annotated text.
1 code implementation • NAACL 2019 • Nouha Dziri, Ehsan Kamalloo, Kory W. Mathewson, Osmar Zaiane
Evaluating open-domain dialogue systems is difficult due to the diversity of possible correct answers.
1 code implementation • WS 2019 • Nouha Dziri, Ehsan Kamalloo, Kory W. Mathewson, Osmar Zaiane
Our model is built upon the basic Seq2Seq model by augmenting it with a hierarchical joint attention mechanism that incorporates topical concepts and previous interactions into the response generation.