activity
20182026
most citedAspect Category Detection via Topic-Attention Network

33 citations · 36 across the 9 of their papers we have counts for

collaborators

10 papers

cs.AI2026

Fixed-Point Reasoners: Stable and Adaptive Deep Looped Transformers

Sajad Movahedi, Vera Milovanović, Shlomo Libo Feigin +5

Looped architectures provide an inductive bias toward learning step-by-step procedures for tasks that require compositional reasoning. The number of effective layers reached by loo…

cs.CL2025

Selective Rotary Position Embedding

Sajad Movahedi, Timur Carstensen, Arshia Afzal +3

Position information is essential for language modeling. In softmax transformers, Rotary Position Embeddings (\textit{RoPE}) encode positions through \textit{fixed-angle} rotations…

cs.LG2025

Fixed-Point RNNs: Interpolating from Diagonal to Dense

Sajad Movahedi, Felix Sarnthein, Nicola Muca Cirone +1

Linear recurrent neural networks (RNNs) and state-space models (SSMs) such as Mamba have become promising alternatives to softmax-attention as sequence mixing layers in Transformer…

cs.IR2024

QEQR: An Exploration of Query Expansion Methods for Question Retrieval in CQA Services

Yasin Ghafourian, Sajad Movahedi, Azadeh Shakery

CQA services are valuable sources of knowledge that can be used to find answers to users' information needs. In these services, question retrieval aims to help users with their inf…

cs.LG2024

Geometric Inductive Biases of Deep Networks: The Role of Data and Architecture

Sajad Movahedi, Antonio Orvieto, Seyed-Mohsen Moosavi-Dezfooli

In this paper, we propose the , which argues that the input space curvature of a neural network remains invariant under transformati…

cs.CL2022

Generative Adversarial Training Can Improve Neural Language Models

Sajad Movahedi, Azadeh Shakery

While deep learning in the form of recurrent neural networks (RNNs) has caused a significant improvement in neural language modeling, the fact that they are extremely prone to over…

cs.LG2022

-DARTS: Mitigating Performance Collapse by Harmonizing Operation Selection among Cells

Sajad Movahedi, Melika Adabinejad, Ayyoob Imani +4

Differentiable neural architecture search (DARTS) is a popular method for neural architecture search (NAS), which performs cell-search and utilizes continuous relaxation to improve…

cs.CL2021

NLP-IIS@UT at SemEval-2021 Task 4: Machine Reading Comprehension using the Long Document Transformer

Hossein Basafa, Sajad Movahedi, Ali Ebrahimi +2

This paper presents a technical report of our submission to the 4th task of SemEval-2021, titled: Reading Comprehension of Abstract Meaning. In this task, we want to predict the co…

cs.CL2019★ 33 cited

Aspect Category Detection via Topic-Attention Network

Sajad Movahedi, Erfan Ghadery, Heshaam Faili +1

The e-commerce has started a new trend in natural language processing through sentiment analysis of user-generated reviews. Different consumers have different concerns about variou…

cs.CL2018★ 3 cited

An Unsupervised Approach for Aspect Category Detection Using Soft Cosine Similarity Measure

Erfan Ghadery, Sajad Movahedi, Heshaam Faili +1

Aspect category detection is one of the important and challenging subtasks of aspect-based sentiment analysis. Given a set of pre-defined categories, this task aims to detect categ…