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This paper investigates the application of pre-trained large language models (LLMs) for spam email classification using zero-shot prompting. We evaluate the performance of both open-source (Flan-T5) and proprietary LLMs (ChatGPT, GPT-4) on…

Computation and Language · Computer Science 2024-10-22 Sergio Rojas-Galeano

Spammers take advantage of email popularity to send indiscriminately unsolicited emails. Although researchers and organizations continuously develop anti-spam filters based on binary classification, spammers bypass them through new…

Computation and Language · Computer Science 2020-05-29 Francisco Jáñez-Martino , Eduardo Fidalgo , Santiago González-Martínez , Javier Velasco-Mata

In recent years we have witnessed an increase in cyber threats and malicious software attacks on different platforms with important consequences to persons and businesses. It has become critical to find automated machine learning techniques…

Cryptography and Security · Computer Science 2021-03-08 Abir Rahali , Moulay A. Akhloufi

Recent technological advances in smartphones and communications, including the growth of such online platforms as massive social media networks such as X (formerly known as Twitter) endangers young people and their emotional well-being by…

Computation and Language · Computer Science 2025-10-03 Ebtesam Jaber Aljohani , Wael M. S. Yafoo

Social networking services like Twitter have been playing an import role in people's daily life since it supports new ways of communicating effectively and sharing information. The advantages of these social network services enable them…

Social and Information Networks · Computer Science 2016-05-17 Phuc Tri Nguyen , Hideaki Takeda

Cross-device training is a crucial subfield of federated learning, where the number of clients can reach into the billions. Standard approaches and local methods are prone to issues such as client drift and insensitivity to data…

Optimization and Control · Mathematics 2024-05-31 Avetik Karagulyan , Egor Shulgin , Abdurakhmon Sadiev , Peter Richtárik

Spam can be defined as unsolicited bulk email. In an effort to evade text-based filters, spammers sometimes embed spam text in an image, which is referred to as image spam. In this research, we consider the problem of image spam detection,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Tazmina Sharmin , Fabio Di Troia , Katerina Potika , Mark Stamp

As the name suggests, image spam is spam email that has been embedded in an image. Image spam was developed in an effort to evade text-based filters. Modern deep learning-based classifiers perform well in detecting typical image spam that…

Cryptography and Security · Computer Science 2021-03-10 Andy Phung , Mark Stamp

We introduce the Universal Speech Model (USM), a single large model that performs automatic speech recognition (ASR) across 100+ languages. This is achieved by pre-training the encoder of the model on a large unlabeled multilingual dataset…

The proliferation of hate speech on social media platforms has necessitated the development of effective detection and moderation tools. This study evaluates the efficacy of various machine learning models in identifying hate speech and…

Computation and Language · Computer Science 2026-02-25 Saurabh Mishra , Shivani Thakur , Radhika Mamidi

The exponential growth of spam text on the Internet necessitates robust detection mechanisms to mitigate risks such as information leakage and social instability. This work addresses two principal challenges: adversarial strategies employed…

Machine Learning · Computer Science 2025-07-25 Zhijie Wang , Zixin Xu , Zhiyuan Pan

Small and imbalanced datasets commonly seen in healthcare represent a challenge when training classifiers based on deep learning models. So motivated, we propose a novel framework based on BioBERT (Bidirectional Encoder Representations from…

Computation and Language · Computer Science 2020-06-23 Shijing Si , Rui Wang , Jedrek Wosik , Hao Zhang , David Dov , Guoyin Wang , Ricardo Henao , Lawrence Carin

Online conversations can be toxic and subjected to threats, abuse, or harassment. To identify toxic text comments, several deep learning and machine learning models have been proposed throughout the years. However, recent studies…

Machine Learning · Computer Science 2023-11-09 Md Azim Khan

Most existing techniques for spam detection on Twitter aim to identify and block users who post spam tweets. In this paper, we propose a Semi-Supervised Spam Detection (S3D) framework for spam detection at tweet-level. The proposed…

Information Retrieval · Computer Science 2018-12-27 Surendra Sedhai , Aixin Sun

The proliferation of fake news and its propagation on social media has become a major concern due to its ability to create devastating impacts. Different machine learning approaches have been suggested to detect fake news. However, most of…

Computation and Language · Computer Science 2021-04-14 Junaed Younus Khan , Md. Tawkat Islam Khondaker , Sadia Afroz , Gias Uddin , Anindya Iqbal

Suicide is a critical global health problem involving more than 700,000 deaths yearly, particularly among young adults. Many people express their suicidal thoughts on social media platforms such as Reddit. This paper evaluates the…

Machine Learning · Computer Science 2025-03-11 Khalid Hasan , Jamil Saquer

In the modern age an enormous amount of communication occurs online, and it is difficult to know when something written is genuine or deceitful. There are many reasons for someone to deceive online (e.g., monetary gain, political gain) and…

Computation and Language · Computer Science 2024-10-22 Steven Triplett , Simon Minami , Rakesh Verma

This paper proposes a novel solution to spam detection inspired by a model of the adaptive immune system known as the crossregulation model. We report on the testing of a preliminary algorithm on six e-mail corpora. We also compare our…

Artificial Intelligence · Computer Science 2008-12-05 Alaa Abi-Haidar , Luis M. Rocha

The increasing threat of SMS spam, driven by evolving adversarial techniques and concept drift, calls for more robust and adaptive detection methods. In this paper, we evaluate the potential of large language models (LLMs), both open-source…

Cryptography and Security · Computer Science 2025-01-10 Muhammad Salman , Muhammad Ikram , Nardine Basta , Mohamed Ali Kaafar

Text-based communication is highly favoured as a communication method, especially in business environments. As a result, it is often abused by sending malicious messages, e.g., spam emails, to deceive users into relaying personal…

Information Retrieval · Computer Science 2022-04-14 Annalisa Occhipinti , Louis Rogers , Claudio Angione