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37th ECMS International Conference on Modelling and Simulation, ECMS 2023

作者： Niewiarowski, Artur Plichta, Anna Department of Computer Science Cracow University of Technology Cracow Poland New Data Mining Systems sp. z o.o. 58 Jana Pawla II Street Libertów30-444 Poland

ISBN: (纸本)9783937436807

This publication presents the results of a study of similarity between texts written in Romanian and Spanish, using a matrix analysis method based on Levenshtein’s edit distance. The method used in the study does not contain implemented language-dependent vocabulary rules and exhibits the feature of linguistic universality in terms of similarity analysis. The study was carried out on the basis of the commercial computer program Antyplagius, created by the New data Mining Systems company, which performs similarity analysis exclusively using the aforementioned method. The texts being compared were taken from excerpts from Wikipedia translated by online translators of popular companies which are based on artificial intelligence solutions. © ECMS Enrico Vicario, Romeo Bandinelli, Virginia Fani, Michele Mastroianni (Editors) 2023.

关键词： data mining

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Cluster deletion and clique partitioning in graphs with bounded clique number

arXiv

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arXiv 2025年

作者： Galesi, Nicola Huynh, Tony Ranjbar, Fariba Department of Computer Control and Management Engineering Sapienza University Rome Italy Department of Computer Science Sapienza University of Rome Italy Department of AI Data and Decision Sciences Luiss Guido Carli Italy

The Cluster Deletion problem takes a graph G as input and asks for a minimum size set of edges X such that G − X is the disjoint union of complete graphs. An equivalent formulation is the Clique Partition problem, which asks to find a partition of V (G) into cliques such that the total number of edges is maximized. We begin by giving a much simpler proof of a theorem of Gao, Hare, and Nastos [15] that Cluster Deletion is efficiently solvable on the class of cographs. We then investigate Cluster Deletion and Clique Partition on permutation graphs, which are a superclass of cographs. Our findings suggest that Cluster Deletion may be NP-hard on permutation graphs. Finally, we prove that for graphs with clique number at most c, there is a [Formula presented]-approximation algorithm for Clique Partition. This is the first polynomial time algorithm which achieves an approximation ratio better than 2 for graphs with bounded clique number. More generally, our algorithm runs in polynomial time on any graph class for which Max Clique can be computed in polynomial time. We also provide a class of examples which shows that our approximation ratio is best *** Codes 05C85, 05C69, 90C27 © 2025, CC BY.

关键词： Approximation algorithms

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ONLINE ADVERSARIAL PURIFICATION BASED ON SELF-SUPERVISED LEARNING 9

ONLINE ADVERSARIAL PURIFICATION BASED ON SELF-SUPERVISED LEA...

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9th International Conference on Learning Representations, ICLR 2021

作者： Shi, Changhao Holtz, Chester Mishne, Gal Department of Electrical and Computer Engineering Department of Computer Science and Engineering The Halıcıoğlu Data Science Institute University of California San Diego United States

Deep neural networks are known to be vulnerable to adversarial examples, where a perturbation in the input space leads to an amplified shift in the latent network representation. In this paper, we combine canonical supervised learning with self-supervised representation learning, and present Self-supervised Online Adversarial Purification (SOAP), a novel defense strategy that uses a self-supervised loss to purify adversarial examples at test-time. Our approach leverages the label-independent nature of self-supervised signals, and counters the adversarial perturbation with respect to the self-supervised tasks. SOAP yields competitive robust accuracy against state-of-the-art adversarial training and purification methods, with considerably less training complexity. In addition, our approach is robust even when adversaries are given knowledge of the purification defense strategy. To the best of our knowledge, our paper is the first that generalizes the idea of using self-supervised signals to perform online test-time purification. © 2021 ICLR 2021 - 9th International Conference on Learning Representations. All rights reserved.

关键词： Purification

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Indoor Sign Recognition System for Visually Impaired People

Indoor Sign Recognition System for Visually Impaired People

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Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS

作者： Halal Abdulrahman Ahmed Fattah Alizadeh Minerva Data Science Lab Universidad de Sevilla Seville Spain Department of Computer Science Toronto Metropolitan University Toronto Canada

Vision impairment can result in a loss of independence due to the inability to fully understand the surrounding environment. Indoor signage is a crucial factor in enabling visually impaired people to navigate unfamiliar environments. This paper proposes a system that automatically recognises a variety of indoor signs, including accessibility, elevator, exit, female toilet, male toilet, no smoking, restaurant, and Wi-Fi. Developing deep-learning algorithms that can accurately recognise similar signs or significant variations is challenging. To address this, the proposed method utilises a dataset of 1141 RGB images to train and test the system. Our approach employs a pre-trained AlexNet architecture with transfer learning and a customised sequential CNN architecture. Experimental results indicate an accuracy rate of 63% for the customised sequential CNN and 80% for AlexNet with transfer learning. The proposed system has the potential to enhance the independence and freedom of visually impaired individuals significantly.

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Learning shadow variable representation for treatment effect estimation under collider bias 24

Learning shadow variable representation for treatment effect...

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Proceedings of the 41st International Conference on Machine Learning

作者： Baohong Li Haoxuan Li Ruoxuan Xiong Anpeng Wu Fei Wu Kun Kuang College of Computer Science and Technology Zhejiang University Hangzhou China Center for Data Science Peking University Beijing China Department of Quantitative Theory & Methods Emory University Atlanta

One of the significant challenges in treatment effect estimation is collider bias, a specific form of sample selection bias induced by the common causes of both the treatment and outcome. Identifying treatment effects under collider bias requires well-defined shadow variables in observational data, which are assumed to be related to the outcome and independent of the sample selection mechanism, conditional on the other observed variables. However, finding a valid shadow variable is not an easy task in real-world scenarios and requires domain-specific knowledge from experts. Therefore, in this paper, we propose a novel method that can automatically learn shadow-variable representations from observational data without prior knowledge. To ensure the learned representations satisfy the assumptions of the shadow variable, we introduce a tester to perform hypothesis testing in the representation learning process. We iteratively generate representations and test whether they satisfy the shadow-variable assumptions until they pass the test. With the help of the learned shadow-variable representations, we propose a novel treatment effect estimator to address collider bias. Experiments show that the proposed methods outperform existing treatment effect estimation methods under collider bias and prove their potential application value.

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Utilizing Web Scraping and Machine Learning for Improving Accuracy of Smartphone Price Prediction

Utilizing Web Scraping and Machine Learning for Improving Ac...

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Advances in data Engineering and Intelligent Computing Systems (ADICS), International Conference on

作者： V. Vasanth Kumar C. TamizhSelvan L. Manoharan R. Vishnu Sekhar V. Vinoth Kumar Department of Electronics and Communication Engineering Hindustan Institute of Technology and Science Chennai India Department of Data Science and Business Systems School of Computing SRM Institute of Science and Technology India Department of Computer Science and Engineering Hindustan Institute of Technology and Science Chennai India Department of Biotechnology Integrated Bioprocessing Laboratory School of Bioengineering SRM Institute of Science and Technology India

ISBN: (数字)9798350364828

ISBN: (纸本)9798350364835

Mobile prices play a pivotal role in determining their popularity amongst consumers and their competitive standing within the market. As customers consider their budget while evaluating a mobile phone's specifications and design, estimating the price beforehand becomes essential to cater to their needs and expectations. Hence, accurately forecasting mobile phone prices is a vital step in the product launch process to remain competitive and assess the market dynamics and competitors. The primary aim of this research is to determine the true market value of mobile phones. In this research, the dataset was extracted by means of utilizing a web scraping process from the flipkart website. The main objective of this research is to fetch the most recent dataset based on the most recent features. The extracted dataset is fitted into regression models such as linear regression, decision tree regressor, random forest regressor, KNN regressor, and gradient boosting regressor and performs the comparative analysis. The models are evaluated based on the mean absolute error metric.

关键词： Measurement Computational modeling Linear regression Predictive models Feature extraction Boosting data models

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Personality Prediction Using Machine Learning

Personality Prediction Using Machine Learning

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Computational Intelligence for Information, Security and Communication Applications (CIISCA), International Conference on

作者： Pooja K Rakshitha GH Spoorthi S Shoaib Kamal Trupthi Rao Ashwini K Department of Computer Science and Engineering Global Academy Of Technology Bangalore India Department of Artificial Intelligence and Data Science Global Academy Of Technology Bangalore India

With the growth of social networks, a wide range of methodologies have been developed to describe users' personalities only based on their language and social media use habits. Persona prediction is very popular these days. It examines consumer behaviour and records the user's ideas, emotions, and so on. There has been a sufficient amount of research in this field over the years. This survey provides an overview of the numerous methods tried to predict personality and behaviour from the use of the social media content. The capacity to anticipate the personality attributes of users can help create a variety of specialised goods or services. The concluding phase then provides the future characteristics and directives.

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Design of Nonlinear Delay Differential System for Analyzing Vulnerabilities in Nanoscale Hardware Implants: A Deep Dive into Intelligent Computing Networks

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Nano 2025年第3期20卷

作者： Asif Raja, Muhammad Junaid Ali Masood, Zaheer Hussain, Ijaz Zameer, Aneela Mehmood, Ammara Raja, Muhammad Asif Zahoor Department of Computer Science and Information Engineering National Yunlin University of Science and Technology Yunlin Douliou64002 Taiwan Department of Electrical Engineering Capital University of Science and Technology Islamabad Pakistan Department of Computer and Information Sciences Pakistan Institute of Engineering & Applied Sciences Islamabad Pakistan School of Electrical and Data Engineering University of Technology Sydney Australia Future Technology Research Center National Yunlin University of Science and Technology Yunlin Douliou64002 Taiwan

In the annals of contemporary innovation, the study of miniature marvels nanoscale hardware implants emerged as a pivotal instrument, scarcely perceptible to the naked eye, embodies a prowess of cutting-edge technologies and clandestine intrigue. The objective of this research is to introduce a time delay nonlinear system for nanoscale hardware implants vulnerabilities that portray the exploitation of a system by utilizing the stupendous knacks of advanced deep bidirectional long short-term memory (LSTM) networks for time series predictions. Firmware-level bugs present the potential for escalating privileges and executing of code remotely beneath the operating system, allowing for infiltration or complete intervention within a computer system. The designed deep bidirectional LSTM is configured to precisely predict and forecast the dynamic states of time delay differential system, offering a robust framework for mimicking delays that commonly manifest in the real cyber-physical systems. To orchestrate the system compromises in real scenarios through the activation of bugged hardware, time delay factors τ1 and τ2 are introduced to account the time delays necessary for exploiting the bugged and patched nodes, respectively. Synthetic data is generated to train the LSTM network for all scenarios of the model for the dynamics of bugged, compromised, patched nodes and these acquired information is used for training, testing and validation purposes regarding exploitation of the bugged hardware. Comparative analysis on exhaustive simulations revealed a minimal difference between the LSTM's predictions and those from the numerical outcomes with MSE in the range of 10-7, underscoring the network's effectiveness, robustness and stability in modeling complex system dynamics of hardware vulnerabilities. © 2025 World Scientific Publishing Company.

关键词： Firmware

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Gene and RNA Editing: Methods, Enabling Technologies, Applications, and Future Directions

arXiv

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arXiv 2024年

作者： Aledhari, Mohammed Rahouti, Mohamed The Data Science University of North Texas DentonTX76207 United States The Department of Computer & Information Science Fordham University New YorkNY10023 United States

Gene and RNA editing methods, technologies, and applications are emerging as innovative forms of therapy and medicine, offering more efficient implementation compared to traditional pharmaceutical treatments. Current trends emphasize the urgent need for advanced methods and technologies to detect public health threats, including diseases and viral agents. Gene and RNA editing techniques enhance the ability to identify, modify, and ameliorate the effects of genetic diseases, disorders, and disabilities. Viral detection and identification methods present numerous opportunities for enabling technologies, such as CRISPR, applicable to both RNA and gene editing through the use of specific Cas proteins. This article explores the distinctions and benefits of RNA and gene editing processes, emphasizing their contributions to the future of medical treatment. CRISPR technology, particularly its adaptation via the Cas13 protein for RNA editing, is a significant advancement in gene editing. The article will delve into RNA and gene editing methodologies, focusing on techniques that alter and modify genetic coding. A-to-I and C-to-U editing are currently the most predominant methods of RNA modification. CRISPR stands out as the most cost-effective and customizable technology for both RNA and gene editing. Unlike permanent changes induced by cutting an individual’s DNA genetic code, RNA editing offers temporary modifications by altering nucleoside bases in RNA strands, which can then attach to DNA strands as temporary modifiers. © 2024, CC BY-NC-ND.

关键词： Gene therapy

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Deep learning model for pleural effusion detection via active learning and pseudo-labeling: a multisite study

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BMC Medical Imaging 2024年第1期24卷 92页

作者： Chang, Joseph Lin, Bo-Ru Wang, Ti-Hao Chen, Chung-Ming Department of Biomedical Engineering College of Medicine and College of Engineering National Taiwan University No. 1 Sec. 1 Jen-Ai Road Taipei 100 Taipei 100 Taiwan EverFortune.AI Co. Ltd Taichung Taiwan The Data Science Degree Program College of Electrical Engineering and Computer Science National Taiwan University and Academia Sinica Taipei Taiwan Department of Radiation Oncology China Medical University Hospital Taichung Taiwan Department of Medicine China Medical University Taichung Taiwan

Background: The study aimed to develop and validate a deep learning-based computer Aided Triage (CADt) algorithm for detecting pleural effusion in chest radiographs using an active learning (AL) framework. This is aimed at addressing the critical need for a clinical grade algorithm that can timely diagnose pleural effusion, which affects approximately 1.5 million people annually in the United States. Methods: In this multisite study, 10,599 chest radiographs from 2006 to 2018 were retrospectively collected from an institution in Taiwan to train the deep learning algorithm. The AL framework utilized significantly reduced the need for expert annotations. For external validation, the algorithm was tested on a multisite dataset of 600 chest radiographs from 22 clinical sites in the United States and Taiwan, which were annotated by three U.S. board-certified radiologists. Results: The CADt algorithm demonstrated high effectiveness in identifying pleural effusion, achieving a sensitivity of 0.95 (95% CI: [0.92, 0.97]) and a specificity of 0.97 (95% CI: [0.95, 0.99]). The area under the receiver operating characteristic curve (AUC) was 0.97 (95% DeLong’s CI: [0.95, 0.99]). Subgroup analyses showed that the algorithm maintained robust performance across various demographics and clinical settings. Conclusion: This study presents a novel approach in developing clinical grade CADt solutions for the diagnosis of pleural effusion. The AL-based CADt algorithm not only achieved high accuracy in detecting pleural effusion but also significantly reduced the workload required for clinical experts in annotating medical data. This method enhances the feasibility of employing advanced technological solutions for prompt and accurate diagnosis in medical settings. © The Author(s) 2024.

关键词： Active learning Chest radiographs Deep learning Pleural effusion X-rays

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