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Daily Archives: October 15, 2026

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AI-Based Fake News Detection Using Natural Language Processing and Machine Learning

Authors: Jananai A, Nivetha D, Prabhavathi U, Sumathi S

Abstract: The rapid circulation of news through websites and social-media platforms makes it difficult for readers to distinguish trustworthy reporting from fabricated or misleading content. This paper presents an AI-based fake news detection system that applies Natural Language Processing (NLP) and machine learning to classify textual news content into predefined categories such as fake and real. The workflow includes data preparation, text cleaning, feature extraction using Term Frequency–Inverse Document Frequency (TF-IDF), model training, prediction, and presentation of the result through an application interface. Logistic Regression is considered as the baseline classifier because it is efficient for sparse text features and provides a practical reference for text-classification tasks. The proposed system is intended to support early screening of suspicious news, not to replace source verification or professional fact-checking. The paper describes the design, implementation workflow, evaluation metrics, risks, and future improvements. Since verified experimental logs and final test measurements were not supplied for this manuscript, numerical performance is not fabricated; the results section specifies the measurements that the team should insert after running the final model. The work provides a structured, reproducible approach for building and evaluating a news-text classification application.

DOI: https://doi.org/10.5281/zenodo.23394198

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A Unified Metadata-Driven Framework for Healthcare Data Modeling, Integration, and Governance

Authors: Madhusudan Rao Karri

Abstract: The rapid growth of healthcare information generated from electronic health records, clinical applications, laboratory systems, medical devices, insurance platforms, and external healthcare services has created significant challenges in managing heterogeneous and distributed data environments. Differences in data structures, formats, semantics, metadata definitions, and governance policies can reduce data interoperability, quality, consistency, and analytical usability. This research proposes a Unified Metadata-Driven Framework for Healthcare Data Modeling, Integration, and Governance to provide a systematic approach for managing enterprise healthcare data throughout its lifecycle. The proposed framework uses metadata as a central mechanism for describing data structures, business definitions, relationships, lineage, quality rules, integration mappings, and governance policies. It integrates metadata-driven data modeling with standardized data integration processes to support consistent transformation and exchange of healthcare information across heterogeneous systems. The framework also incorporates governance capabilities for data quality, security, privacy, access control, lineage, ownership, and regulatory compliance. A layered architecture comprising metadata management, data modeling, integration, governance, quality management, and monitoring components is proposed to improve scalability and operational consistency. The framework can further support automated schema mapping, metadata validation, lineage tracking, and policy enforcement, thereby reducing manual intervention and improving data management efficiency. Evaluation of the framework can be performed using measures such as integration efficiency, data quality, metadata completeness, transformation accuracy, processing time, lineage coverage, and governance compliance. The proposed approach provides a unified foundation for building scalable, interoperable, and governed healthcare data environments capable of supporting analytics, reporting, clinical decision-making, and enterprise data management.

DOI: https://doi.org/10.5281/zenodo.23391272

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Exam Malpractice Detector: A Real-Time, Rule-Based Computer Vision System with Seat-Level Risk Heatmaps and Automated Evidence Reporting

Authors: Dhakchitha C, Kaviyashree S, Rithika K, Subashini R

Abstract: Maintaining integrity in invigilated examinations is labor-intensive, and human proctors cannot continuously observe every candidate. This paper presents Exam Malpractice Detector, a lightweight, real-time monitoring system built with OpenCV and Python that flags suspicious behavior from a single camera feed. The system combines four inexpensive visual cues: multiple-face detection using a Haar cascade, frame-differencing-based motion analysis, face-position-based "looking away" estimation, and Canny-edge contour analysis for unexpected objects. Detections are mapped to a three-tier status (Normal, Doubt/Review, Confirmed Malpractice) with confidence values. Each alert triggers cooldown-limited, hash-deduplicated, JPEG-compressed evidence capture. Alerts are also projected onto a 5×7 seat grid, where weighted scores produce a color-coded hall heatmap. At session end, a structured PDF report containing session metadata, violation summary, heatmap, event table, and screenshots is generated automatically for staff review. The design keeps a human in the loop: the system flags and documents, and staff decide. Because it needs no GPU and no training data, it can run on commodity hardware.

DOI: https://doi.org/10.5281/zenodo.23389223

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