13 papers
CT: Counterfactual Causal Reasoning for Sentiment Shifts in Social-Media Conversation Trees
S M Rafiuddin, Atriya Sen
Sentiment in social-media threads does not only vary across posts; it shifts as users react to claims, corrections, evidence, and hostility within a branching reply tree. We study…
Constraint-Aware Counterfactual Editing for Aspect-Based Sentiment Analysis
S M Rafiuddin, Vamsi Krishna Pavuluri, Atriya Sen
Aspect-Based Sentiment Analysis (ABSA) requires models to identify sentiment toward specific aspects rather than relying on the global polarity of a sentence. This makes counterfac…
Edu-EmotionNet: Cross-Modality Attention Alignment with Temporal Feedback Loops
S M Rafiuddin
Understanding learner emotions in online education is critical for improving engagement and personalized instruction. While prior work in emotion recognition has explored multimoda…
Learning What to Remember: Adaptive Probabilistic Memory Retention for Memory-Efficient Language Models
S M Rafiuddin, Muntaha Nujat Khan
Transformer attention scales quadratically with sequence length O(n^2), limiting long-context use. We propose Adaptive Retention, a probabilistic, layer-wise token selection mechan…
High Cursive Complex Character Recognition using GAN External Classifier
S M Rafiuddin
Handwritten characters can be trickier to classify due to their complex and cursive nature compared to simple and non-cursive characters. We present an external classifier along wi…
Isolated Bangla Handwritten Character Classification using Transfer Learning
Abdul Karim, S M Rafiuddin, Jahidul Islam Razin +1
Bangla language consists of fifty distinct characters and many compound characters. Several notable studies have been performed to recognize Bangla characters, both handwritten and…
A Long Short-Term Memory (LSTM) Model for Business Sentiment Analysis Based on Recurrent Neural Network
Md. Jahidul Islam Razin, Md. Abdul Karim, M. F. Mridha +2
Business sentiment analysis (BSA) is one of the significant and popular topics of natural language processing. It is one kind of sentiment analysis techniques for business purposes…
Estimation of Phylogenetic Tree using Gene Sequencing Data
S M Rafiuddin
A phylogenetic tree is an important way in Bioinformatics to find the evolutionary relationship among biological species. In this research, a proposed model is described for the es…
Ranking of Bangla Word Graph using Graph-based Ranking Algorithms
S M Rafiuddin
Ranking words is an important way to summarize a text or to retrieve information. A word graph is a way to represent the words of a sentence or a text as the vertices of a graph an…
Performance Analysis of Supervised Machine Learning Algorithms for Text Classification
Sadia Zaman Mishu, S M Rafiuddin
The demand for text classification is growing significantly in web searching, data mining, web ranking, recommendation systems, and so many other fields of information and technolo…
AdaptiSent: Context-Aware Adaptive Attention for Multimodal Aspect-Based Sentiment Analysis
S M Rafiuddin, Sadia Kamal, Mohammed Rakib +2
We introduce AdaptiSent, a new framework for Multimodal Aspect-Based Sentiment Analysis (MABSA) that uses adaptive cross-modal attention mechanisms to improve sentiment classificat…
A Detailed Factor Analysis for the Political Compass Test: Navigating Ideologies of Large Language Models
Sadia Kamal, Lalu Prasad Yadav Prakash, S M Rafiuddin +3
The Political Compass Test (PCT) and similar surveys are commonly used to assess political bias in auto-regressive LLMs. Our rigorous statistical experiments show that while change…
Exploiting Adaptive Contextual Masking for Aspect-Based Sentiment Analysis
S M Rafiuddin, Mohammed Rakib, Sadia Kamal +1
Aspect-Based Sentiment Analysis (ABSA) is a fine-grained linguistics problem that entails the extraction of multifaceted aspects, opinions, and sentiments from the given text. Both…