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Safety is the main concern in the aviation industry, where even minor operational issues can lead to serious consequences. This study addresses the need for comprehensive aviation accident analysis by leveraging natural language processing…

Machine Learning · Computer Science 2025-01-23 Aziida Nanyonga , Hassan Wasswa , Graham Wild

Psychological trauma can manifest following various distressing events and is captured in diverse online contexts. However, studies traditionally focus on a single aspect of trauma, often neglecting the transferability of findings across…

Computation and Language · Computer Science 2024-08-13 Miriam Schirmer , Tobias Leemann , Gjergji Kasneci , Jürgen Pfeffer , David Jurgens

Modern large-scale Pre-trained Language Models (PLMs) have achieved tremendous success on a wide range of downstream tasks. However, most of the LM pre-training objectives only focus on text reconstruction, but have not sought to learn…

Computation and Language · Computer Science 2022-10-28 Liliang Ren , Zixuan Zhang , Han Wang , Clare R. Voss , Chengxiang Zhai , Heng Ji

Text sentiment analysis, also known as opinion mining, is research on the calculation of people's views, evaluations, attitude and emotions expressed by entities. Text sentiment analysis can be divided into text-level sentiment analysis,…

Computation and Language · Computer Science 2022-07-08 Tianyu Zhao , Junping Du , Zhe Xue , Ang Li , Zeli Guan

Aspect-based sentiment analysis (ABSA) is a crucial fine-grained task in social media scenarios to identify the sentiment polarity of specific aspect terms in a sentence. Although many existing studies leverage large language models (LLMs)…

Computation and Language · Computer Science 2025-07-15 Junjie Liu , Yuanhe Tian , Yan Song

Safety alignment of large language models (LLMs) has been gaining increasing attention. However, current safety-aligned LLMs suffer from the fragile and imbalanced safety mechanisms, which can still be induced to generate unsafe responses,…

Computation and Language · Computer Science 2024-12-18 Weixiang Zhao , Yulin Hu , Zhuojun Li , Yang Deng , Jiahe Guo , Xingyu Sui , Yanyan Zhao , Bing Qin , Tat-Seng Chua , Ting Liu

Vehicle crashes involve complex interactions between road users, split-second decisions, and challenging environmental conditions. Among these, two-vehicle crashes are the most prevalent, accounting for approximately 70% of roadway crashes…

Artificial Intelligence · Computer Science 2025-10-16 Boyou Chen , Gerui Xu , Zifei Wang , Huizhong Guo , Ananna Ahmed , Zhaonan Sun , Zhen Hu , Kaihan Zhang , Shan Bao

Large vision-language models (LVLMs) are vulnerable to harmful input compared to their language-only backbones. We investigated this vulnerability by exploring LVLMs internal dynamics, framing their inherent safety understanding in terms of…

Artificial Intelligence · Computer Science 2025-07-30 Wanying Wang , Zeyu Ma , Han Zheng , Xin Tan , Mingang Chen

Individual events at high-energy colliders like the LHC can be represented by a sequence of measurements, or 'point patterns' in an observable space. Starting from this data representation, we build a simple Bayesian probabilistic model for…

High Energy Physics - Phenomenology · Physics 2020-12-17 Darius A. Faroughy

Sentiment analysis (SA) has been, and is still, a thriving research area. However, the task of Arabic sentiment analysis (ASA) is still underrepresented in the body of research. This study offers the first in-depth and in-breadth analysis…

Computation and Language · Computer Science 2024-03-05 Latifah Almurqren , Ryan Hodgson , Alexandra Cristea

Latent class analysis (LCA) is a useful tool to investigate the heterogeneity of a disease population with time-to-event data. We propose a new method based on non-parametric maximum likelihood estimator (NPMLE), which facilitates…

Methodology · Statistics 2022-02-03 Teng Fei , John Hanfelt , Limin Peng

We have used an unsupervised machine learning method called Latent Dirichlet Allocation (LDA) to thematically analyze all papers published in the Physics Education Research Conference Proceedings between 2001 and 2018. By looking at…

Physics Education · Physics 2020-07-08 Tor Ole B. Odden , Alessandro Marin , Marcos D. Caballero

Latent Semantic Analysis is a method of matrix decomposition used for discovering topics and topic weights in natural language documents. This study uses Latent Semantic Analysis to analyze the composition of binaries of malicious programs.…

Cryptography and Security · Computer Science 2023-03-02 John Musgrave , Temesguen Messay-Kebede , David Kapp , Anca Ralescu

Context: Topic modeling finds human-readable structures in unstructured textual data. A widely used topic modeler is Latent Dirichlet allocation. When run on different datasets, LDA suffers from "order effects" i.e. different topics are…

Software Engineering · Computer Science 2018-03-16 Amritanshu Agrawal , Wei Fu , Tim Menzies

Learning effective sentence representations is crucial for many Natural Language Processing (NLP) tasks, including semantic search, semantic textual similarity (STS), and clustering. While multiple transformer models have been developed for…

Computation and Language · Computer Science 2023-11-30 Liya Wang , Jason Chou , Dave Rouck , Alex Tien , Diane M Baumgartner

There is an escalating need for methods to identify latent patterns in text data from many domains. We introduce a new method to identify topics in a corpus and represent documents as topic sequences. Discourse Atom Topic Modeling draws on…

Computation and Language · Computer Science 2022-10-06 Alina Arseniev-Koehler , Susan D. Cochran , Vickie M. Mays , Kai-Wei Chang , Jacob Gates Foster

We present LDAExplore, a tool to visualize topic distributions in a given document corpus that are generated using Topic Modeling methods. Latent Dirichlet Allocation (LDA) is one of the basic methods that is predominantly used to generate…

Information Retrieval · Computer Science 2015-07-24 Ashwinkumar Ganesan , Kiante Brantley , Shimei Pan , Jian Chen

Topic modeling is a powerful technique for uncovering hidden themes within a collection of documents. However, the effectiveness of traditional topic models often relies on sufficient word co-occurrence, which is lacking in short texts.…

Computation and Language · Computer Science 2024-10-22 Pritom Saha Akash , Kevin Chen-Chuan Chang

There has been growing interest in Multimodal Aspect-Based Sentiment Analysis (MABSA) in recent years. Existing methods predominantly rely on pre-trained small language models (SLMs) to collect information related to aspects and sentiments…

Computation and Language · Computer Science 2025-05-27 Jun Cao , Jiyi Li , Ziwei Yang , Renjie Zhou

The aspect-based sentiment analysis (ABSA) is a standard NLP task with numerous approaches and benchmarks, where large language models (LLM) represent the current state-of-the-art. We focus on ABSA subtasks based on Twitter/X data in…

Computation and Language · Computer Science 2024-08-06 Tomáš Filip , Martin Pavlíček , Petr Sosík