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How and where does a transformer notice that a sentence has gone semantically off the rails? To explore this question, we evaluated the causal language model (phi-2) using a carefully curated corpus, with sentences that concluded plausibly…

Computation and Language · Computer Science 2025-11-25 Christos-Nikolaos Zacharopoulos , Revekka Kyriakoglou

Modern two-stage object detectors generally require excessively large models for their detection heads to achieve high accuracy. To address this problem, we propose that the model parameters of two-stage detection heads can be condensed and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Zhe Chen , Jing Zhang , Dacheng Tao

The increasing global crime rate, coupled with substantial human and property losses, highlights the limitations of traditional surveillance methods in promptly detecting diverse and unexpected acts of violence. Addressing this pressing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Aritra Dutta , Pushpita Boral , G Suseela

Abusive behavior is common on online social networks, and forces the hosts of such platforms to find new solutions to address this problem. Various methods have been proposed to automate this task in the past decade. Most of them rely on…

Social and Information Networks · Computer Science 2025-05-08 Noé Cecillon , Vincent Labatut , Richard Dufour

Social networks have become an indispensable part of our lives, with billions of people producing ever-increasing amounts of text. At such scales, content policies and their enforcement become paramount. To automate moderation, questionable…

Computation and Language · Computer Science 2022-02-22 Rasika Bhalerao , Mohammad Al-Rubaie , Anand Bhaskar , Igor Markov

The online community has increasingly been inundated by a toxic wave of harmful comments. In response to this growing challenge, we introduce a two-stage ultra-low-cost multimodal harmful behavior detection method designed to identify…

Multiagent Systems · Computer Science 2024-03-26 Albert Lu , Stephen Cranefield

Natural Language Processing has recently made understanding human interaction easier, leading to improved sentimental analysis and behaviour prediction. However, the choice of words and vocal cues in conversations presents an underexplored…

Computers and Society · Computer Science 2022-06-24 Amna Anwar , Eiman Kanjo , Dario Ortega Anderez

Automated deception detection systems can enhance health, justice, and security in society by helping humans detect deceivers in high-stakes situations across medical and legal domains, among others. This paper presents a novel analysis of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Leena Mathur , Maja J Matarić

We propose a new method for learning word representations using hierarchical regularization in sparse coding inspired by the linguistic study of word meanings. We show an efficient learning algorithm based on stochastic proximal methods…

Computation and Language · Computer Science 2014-11-07 Dani Yogatama , Manaal Faruqui , Chris Dyer , Noah A. Smith

Certain crimes are hardly committed by individuals but carefully organised by group of associates and affiliates loosely connected to each other with a single or small group of individuals coordinating the overall actions. A common starting…

Social and Information Networks · Computer Science 2015-10-09 Haruna Isah , Daniel Neagu , Paul Trundle

Crime in the 21st century is split into a virtual and real world. However, the former has become a global menace to people's well-being and security in the latter. The challenges it presents must be faced with unified global cooperation,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Pedro H. V. Valois , João Macedo , Leo S. F. Ribeiro , Jefersson A. dos Santos , Sandra Avila

The advent of social media in recent years has fed into some highly undesirable phenomena such as proliferation of offensive language, hate speech, sexist remarks, etc. on the Internet. In light of this, there have been several efforts to…

Computation and Language · Computer Science 2018-09-05 Pushkar Mishra , Helen Yannakoudakis , Ekaterina Shutova

Incorporating linguistic knowledge can improve scene text recognition, but it is questionable whether the same holds for scene text spotting, which typically involves text detection and recognition. This paper proposes a method that…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Nguyen Nguyen , Yapeng Tian , Chenliang Xu

It is known that a deep neural network model pre-trained with large-scale data greatly improves the accuracy of various tasks, especially when there are resource constraints. However, the information needed to solve a given task can vary,…

Computation and Language · Computer Science 2019-04-17 Masahiro Kaneko , Mamoru Komachi

We propose a direct-to-word sequence model which uses a word network to learn word embeddings from letters. The word network can be integrated seamlessly with arbitrary sequence models including Connectionist Temporal Classification and…

Computation and Language · Computer Science 2020-07-16 Ronan Collobert , Awni Hannun , Gabriel Synnaeve

We propose a new fast fully unsupervised method to discover semantic patterns. Our algorithm is able to hierarchically find visual categories and produce a segmentation mask where previous methods fail. Through the modeling of what is a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Francesco Pelosin , Andrea Gasparetto , Andrea Albarelli , Andrea Torsello

Gang affiliates have joined the masses who use social media to share thoughts and actions publicly. Interestingly, they use this public medium to express recent illegal actions, to intimidate others, and to share outrageous images and…

Social and Information Networks · Computer Science 2016-10-28 Sanjaya Wijeratne , Lakshika Balasuriya , Derek Doran , Amit Sheth

The rise of social networks has not only facilitated communication but also allowed the spread of harmful content. Although significant advances have been made in detecting toxic language in textual data, the exploration of concept-based…

Computation and Language · Computer Science 2025-12-16 Samarth Garg , Divya Singh , Deeksha Varshney , Mamta

Large Language Models (LLMs) have strong capabilities in code comprehension, but fine-tuning costs and semantic alignment issues limit their project-specific optimization; conversely, code models such CodeBERT are easy to fine-tune, but it…

Software Engineering · Computer Science 2024-07-22 Ziliang Wang , Ge Li , Jia Li , Yingfei Xiong , Jia Li , Meng Yan , Zhi Jin

Deepfake detection is a long-established research topic vital for mitigating the spread of malicious misinformation. Unlike prior methods that provide either binary classification results or textual explanations separately, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Xiao Guo , Xiufeng Song , Yue Zhang , Xiaohong Liu , Xiaoming Liu