💻 computer science

A Deterministic Complete Graph Hill Cipher with Shift128 Residual Encryption for Universal Binary Files

This paper presents CGHC-S128, a hybrid encryption framework that combines a Complete Graph Hill Cipher with Shift128 residual encryption to securely and efficiently encrypt universal binary files of any size without padding, while ensuring mathematical key invertibility, perfect decryption, and strong resistance to cryptanalytic attacks.

Samsul Arifin¹, Paskalis Farelnata Zamasi, Ade Kurniawan, Tiawan Tiawan, Merios Gusan Putra, Edwin Kristianto Sijabat, D (…)2026-07-30
💻 computer science

CAI Computing Power Law: A Quantitative Framework for the Tripartite Balance of Computing Power, Algorithms and Generalized Information Resources

This paper proposes the CAI Computing Power Law, a quantitative framework (C = A/I) demonstrating that optimizing algorithms and purifying information resources can significantly enhance effective computing power and mitigate diminishing returns, thereby guiding industries to achieve a dynamic tripartite balance among computing power, algorithms, and generalized information rather than relying solely on hardware expansion.

Zhiyun Chen2026-07-30
💻 computer science

Confidence-Gated Multimodal Fusion with Speech-Guided Captioning for Depression Detection

This paper introduces a confidence-gated multimodal framework that integrates text embeddings, acoustic features, and speech-guided emotion captions to dynamically weight modality reliability, achieving state-of-the-art depression detection performance while addressing evaluation leakage through rigorous nested cross-validation.

Ankit Kumar, Rohan Thapa, Shahid Shafi Dar, Nagendra Kumar2026-07-30
💻 computer science

Does Model Compression Amplify Clinical Bias? A Subgroup Fairness Audit of Quantized ICU Risk Models on MIMIC-IV

This study audits the impact of model compression techniques on subgroup fairness in ICU AKI risk prediction using MIMIC-IV, revealing that while naive quantization can catastrophically degrade performance and pruning significantly harms subgroup accuracy, proper methodological controls are essential to avoid spurious fairness claims and address inherent disparities driven by small subgroup sizes.

Aman Chandra H, Stuti Shivhare2026-07-30
💻 computer science

Graph-Based Polypharmacy Risk Networks for Adverse Event Prediction in ICU Patients: A MIMIC-IV Analysis

This study leverages MIMIC-IV data to demonstrate that while standard tabular models often outperform graph-based approaches for predicting acute kidney injury and bleeding, graph embeddings derived from drug co-administration networks provide statistically significant, interpretable improvements in predicting delirium risk when label leakage is rigorously corrected.

Aman Chandra H, Stuti Shivhare2026-07-30