Northern Reviews on Algorithmic Research, Theoretical Computation, and Complexity
type: channel
description: NRATCC bridges abstract computational models and real-world implementations. Articles in this domain explore advancements in quantum computing, parallel computation, and innovative approaches to automata and formal languages. Research that challenges existing paradigms or proposes new frameworks for addressing computational efficiency is strongly encouraged. The journal welcomes both foundational research and application-driven studies that address pressing challenges in cryptography, machine learning, and network theory.
language: en
publication name: Northern Reviews on Algorithmic Research, Theoretical Computation, and Complexity
items: Comparative Effects of Virtual and Human Influencer Endorsements on Purchase Intent among Digital Consumer Audiences in Lifestyle Marketing
items: Channel-Selective Information Regulation for Low-SNR Automatic Modulation Recognition
items: A Distributed Outlier Detection Method for High-Dimensional Telemetry Using Sketches and Locality-Sensitive Hashing
items: Estimating Heterogeneous Treatment Effects of Driver Incentives in Ride-hailing Platforms
items: Modeling and Simulation of Gas Kick Behavior in Deviated and Horizontal Wellbores Under Variable Pressure Conditions
items: Ensemble Coordination Mechanisms for Aligning Marketing Attribution, Revenue Recovery, and Platform Cost Optimization
items: Reducing Friction in the B2C Digital Purchase Funnel: A Data-Driven Customer Journey Modeling and Intervention Framework for Revenue Optimization
items: Benchmarking of Optimization and Heuristic Conflict Resolution Maneuvers for UAS Detect-and-Avoid Systems
items: Time-Domain Analysis Techniques for Characterizing Discontinuities in High-Speed Digital Systems
items: Computational Simulation and Algorithmic Analysis of Occupational Health Risk Dynamics in Labor Markets and Their Policy Implications in Developing Regions
items: Complexity Theory and the Macroeconomic Determinants of Smoking: Feedback Loops, Social Norms, and Behavioral Reinforcement
items: Security Auditing and Information Assurance in Information Systems: A Practical Approach to Risk Identification and Mitigation
items: Improving Healthcare Supply Chain Efficiency through Predictive Analytics and Machine Learning: A Data-Driven Management Framework
items: Predictive Analytics for Budget Optimization and Financial Stewardship Across Integrated Healthcare Networks
items: Monte Carlo Simulations of Silica Oligomerization: A Comparative Study of Parallel Tempering, Umbrella Sampling, and Metadynamics
items: Real-time Analytics in the Cloud: Overcoming Latency and Throughput Challenges for Big Data Streams
items: Multiscale Numerical Methods for Modeling Biofluid Dynamics Across Cellular to Organ-Level Scales
items: Efficient Search Algorithms Leveraging Inverted Indexing and Parallel Processing for Large-Scale Commonsense Knowledge Repositories
items: Machine Comprehension through Attention Mechanisms in Encoder-Decoder Architectures
items: The Impact of Hallucinated Information in Large Language Models on Student Learning Outcomes: A Critical Examination of Misinformation Risks in AI-Assisted Education
items: Design of Cloud-Facilitated Data Repositories for Large-Scale Traffic Pattern Analyses
items: Conversational AI and Chatbot Systems for Enhancing Automated Billing, Payments, and Customer Support in SaaS Platforms

Comparative Effects of Virtual and Human Influencer Endorsements on Purchase Intent among Digital Consumer Audiences in Lifestyle Marketing
type: item
description: Influencer marketing has become a common way for brands to present products through familiar social media formats. At the same time, AI-generated virtual models have moved into the same promotional space that was previously occupied mainly by real-life creators. This shift raises a practical research question about how consumers respond when the visible source of endorsement is not a human person but a designed digital persona. The present paper examines purchase intent in response to endorsements from AI-generated virtual influencers and human influencers in lifestyle product contexts. The study uses a survey dataset with 480 participant observations distributed across two influencer conditions and three product categories. Purchase intent is treated as the main outcome, while perceived authenticity, trust, novelty, parasocial response, ad skepticism, product involvement, and background characteristics are included to describe the structure of consumer response. The analysis applies independent-samples tests, a two-way analysis of variance, scale reliability checks, and ordinary least squares regression models. The results suggest that the two source types produce distinct perception patterns. Human influencers are rated more highly in terms of perceived authenticity, trust, and parasocial response, while AI-generated virtual influencers score higher on novelty. Although purchase intention is slightly greater for human influencers in the raw comparison, the difference is relatively small.
subject: Articles
  topic: section
subject: influencer marketing
  topic: keywords
subject: virtual influencers
  topic: keywords
subject: AI-generated influencers
  topic: keywords
subject: purchase intention
  topic: keywords
subject: perceived authenticity
  topic: keywords
subject: consumer behavior
  topic: keywords
creator: Bence Ferenc Török
rights: Copyright (c) 2025 author
date: 2025-11-04
publication date: 2025-11-04
starting page: 1
ending page: 20

Channel-Selective Information Regulation for Low-SNR Automatic Modulation Recognition
type: item
description: Wireless receivers operating in dense and contested spectral environments must often infer modulation type from short, corrupted, and weak observations. In such settings, the classification problem is shaped not only by additive noise but also by oscillator mismatch, fading, interference, finite observation windows, and the uneven distribution of informative signal structure across time and feature channels. The practical consequence is that many deep classifiers fail not because they lack nominal capacity, but because they allocate representational effort inefficiently: they preserve redundant activations, over-amplify nuisance responses, and allow fragile class evidence to be buried beneath feature congestion. This paper develops a technical research framework for low-SNR automatic modulation recognition centered on the concept of information regulation in hierarchical feature systems. The analysis treats deep modulation classifiers as nonlinear operators that compress, route, and reweight class evidence under noise and derives a representation-theoretic view of why channel-selective mechanisms become especially important when the latent signal manifold is weakly expressed. A mathematical formulation is given for the received waveform, multistage feature mapping, channel-gating dynamics, class margin evolution, and error concentration under adverse conditions. The paper then examines how channel-selective compression interacts with residual transport, multiscale memory, and global context summaries to improve latent separability without uncontrolled growth in computation. Rather than presenting architecture as an isolated engineering recipe, the study interprets low-SNR recognition through the geometry of preserved versus overloaded feature subspaces, the stability of decision boundaries under nuisance perturbation, and the statistical efficiency of selective feature amplification. The resulting treatment offers a principled account of why robust modulation recogn…
subject: Articles
  topic: section
creator: Isuru Fernando
creator: Madushan Karunaratne
creator: Sajith Abeysekara
rights: Copyright (c) 2025 authors
date: 2025-03-04
publication date: 2025-03-04
starting page: 1
ending page: 23

A Distributed Outlier Detection Method for High-Dimensional Telemetry Using Sketches and Locality-Sensitive Hashing
type: item
description: Modern observability stacks collect high-dimensional telemetry that mixes numeric metrics, sparse categorical signals, and derived features from logs and traces. Detecting outliers in such data is operationally important but computationally constrained, since telemetry arrives as a distributed stream and must be processed under tight latency and bandwidth budgets. This paper develops a distributed outlier detection method that combines linear sketches for compact representation with locality-sensitive hashing to generate cross-node candidate neighborhoods. Each worker maintains a sliding-window index of sketched telemetry points, periodically exchanging small hash and sketch summaries rather than raw vectors. A coordinator (or peer-to-peer overlay) merges hash collisions into candidate sets and performs approximate neighborhood scoring using only sketches, while adaptively requesting extra sketch detail when uncertainty remains. The method targets distance- and density-based outlier notions in high dimensions, where exact nearest-neighbor search is impractical and naive aggregation is bandwidth-dominated. We formalize the distributed streaming setting, specify sketch constructions that preserve norms and approximate distances with controllable distortion, and couple them to Euclidean and angular LSH families for candidate generation. Analytical results characterize detection error as a function of sketch dimension, hash parameters, window size, and nonstationarity, yielding explicit trade-offs between false alerts and communication. Empirical evaluation on production-like telemetry mixtures and controlled synthetic drift scenarios indicates that sketch-only scoring recovers most of the ranking performance of raw-vector baselines while reducing per-window communication by one to two orders of magnitude under typical parameterizations.
subject: Articles
  topic: section
creator: Naveen Perera
creator: Isuru Jayasena
rights: Copyright (c) 2023 authors
date: 2023-04-04
publication date: 2023-04-04
starting page: 1
ending page: 15

Estimating Heterogeneous Treatment Effects of Driver Incentives in Ride-hailing Platforms
type: item
description: Ride-hailing and delivery platforms rely on a mix of monetary and non-monetary incentives to dynamically balance supply and demand in two-sided marketplaces. However, the average effect of any single incentive can mask substantial heterogeneity in behavioral responses across drivers and riders. This paper provides a methodological roadmap for estimating heterogeneous treatment effects of driver incentives in such an operational environment characterized by dynamic behavior, endogenous matching, and pervasive interference among agents. The roadmap formalizes causal estimands that capture direct effects on treated drivers, spillover effects on other drivers, and two-sided equilibrium effects including rider outcomes. Identification strategies are discussed for settings constrained by limited experimental control with an emphasis on approaches combining randomized variation-such as saturation and clustered randomization designs-with flexible, robust estimators, including meta-learners, causal forests, and doubly robust methods. Building on these heterogeneity estimates, a policy learning layer is proposed that translates HTEs into operationally constrained incentive assignments, subject to budgetary limits, fairness criteria, and service level guardrails. Validation procedures are outlined using held-out geographic regions and simulation-based stress testing to assess policy performance in a wide range of market conditions. The proposed framework is suited for capturing realistic heterogeneity across drivers-for example, full-time, part-time, students, retirees, newly onboarded, or experienced-and riders-for example, commuters, nighttime users, or occasional travelers-and for accounting for time-varying demand states and geographic frictions intrinsic to urban mobility markets.
subject: Articles
  topic: section
subject: Causal Inference and Policy Learning
  topic: keywords
subject: Driver Incentives
  topic: keywords
subject: Heterogeneous Treatment Effects (HTE)
  topic: keywords
subject: Ride-Hailing Platform Dynamics
  topic: keywords
subject: Two-Sided Marketplaces
  topic: keywords
creator: Nihar Vipulkumar Patel
rights: Copyright (c) 2024 authors
date: 2024-11-08
publication date: 2024-11-08
starting page: 16
ending page: 43

Modeling and Simulation of Gas Kick Behavior in Deviated and Horizontal Wellbores Under Variable Pressure Conditions
type: item
description: Gas kicks represent one of the most critical transient events in well control during drilling operations, particularly in deviated and horizontal wellbores where complex hydrodynamic and transient multiphase effects arise. As modern field development increasingly targets extended-reach and unconventional reservoirs, the interplay of variable bottom-hole and surface pressure programs with gas migration and annular hydraulics requires detailed modeling and simulation. In such wells, non-vertical orientation modifies the effective hydrostatic head, enhances segregation and slip between gas and liquid phases, and alters the response of control systems such as chokes and managed pressure drilling equipment. This work presents a comprehensive modeling and simulation framework for gas kick behavior in deviated and horizontal wellbores under variable pressure conditions, combining transient multiphase flow modeling with numerical analysis and data-driven interpretation. The model incorporates depth-dependent inclination, realistic annular geometry, compressible gas behavior, and dynamic surface pressure control laws. Transient simulations are performed for a range of kick intensities, well inclinations, and pressure schedules in order to characterize gas migration, surface response, and operational envelopes. Additionally, synthetic simulation data are used to train machine-learning models for early detection and characterization of gas kicks based on surface measurements. The study emphasizes the interaction between physical modeling and data-based interpretation and explores the sensitivities of predicted kick behavior to flow, thermodynamic, and operational parameters in deviated and horizontal wells subject to variable pressure profiles.
subject: Articles
  topic: section
creator: Naveen Perera
creator: Dilani Fernando
rights: Copyright (c) 2023 authors
date: 2023-07-04
publication date: 2023-07-04
starting page: 1
ending page: 19

Ensemble Coordination Mechanisms for Aligning Marketing Attribution, Revenue Recovery, and Platform Cost Optimization
type: item
description: Digital platforms operate under a persistent tension between aggressive marketing investment, disciplined revenue recovery, and strict platform cost control. Marketing attribution pipelines seek to explain which channels and touchpoints drive incremental performance, while revenue recovery systems concentrate on detecting leakage, fraud, and uncollectable exposure. At the same time, platform cost optimizers emphasize infrastructure, bidding, and operational costs that are often invisible to attribution and recovery stakeholders. In many organizations these three functions are implemented as distinct models, optimized on different horizons, trained on different samples, and governed by inconsistent constraints. This separation frequently produces contradictory incentives, unstable budgets, and nontransparent trade-offs. This study examines ensemble coordination mechanisms that explicitly couple attribution, revenue recovery, and cost optimization into a single optimization layer. The central idea is to treat each domain model as a base learner whose outputs are harmonized by a shared coordination variable and a multi-objective linear optimizer. The paper develops a formal system representation, a linearized objective integrating business and technical constraints, and a class of distributed algorithms capable of operating with incomplete and delayed information. An illustrative experimental design is used to discuss how the proposed coordination layer can stabilize budget allocation, reduce oscillations between aggressive growth and cost cutting, and expose interpretable trade-off surfaces to decision makers. The overall formulation remains compatible with existing marketing technology stacks and supports gradual adoption without requiring wholesale system redesign.
subject: Articles
  topic: section
creator: Nader Barakat
creator: Tarek Daou
rights: Copyright (c) 2024 authors
date: 2024-11-04
publication date: 2024-11-04
starting page: 1
ending page: 15

Reducing Friction in the B2C Digital Purchase Funnel: A Data-Driven Customer Journey Modeling and Intervention Framework for Revenue Optimization
type: item
description: Digital consumer purchase journeys increasingly unfold within dense, multi-touch environments where channel proliferation, device fragmentation, and rich merchandising content create opportunities for both engagement and friction. At each stage, small operational or cognitive impediments alter the balance between continuation and abandonment, shaping revenue and customer experience in ways that are measurable but often left unstructured. Friction emerges from latency, information overload, verification demands, input complexity, navigation inconsistency, and perceived risk, interacting with individual sensitivity, intentions, and context. Many organizations deploy localized user interface changes or incentives without a unifying modeling framework that links observed frictions, interventions, and revenue outcomes over heterogeneous paths. This paper presents an integrated, data-driven framework for modeling the B2C digital purchase funnel as a controlled stochastic process combined with causal estimation and constrained optimization. The framework formalizes friction as parameterized costs embedded in state transitions, incorporates behavioral regularization, and supports heterogeneous treatment effect estimation for candidate interventions such as content adjustments, sequencing rules, and incentive strategies. It is designed to operate under typical data limitations, including incomplete identity resolution, sparse conversions, seasonality, and noisy attributions. The resulting structure enables calibrated, uncertainty-aware policies for reducing friction and reallocating intervention budgets across segments, channels, and devices without overstating precision. The discussion emphasizes internal coherence between measurement, modeling, decision rules, and governance, providing a neutral basis on which organizations can align engineering, design, and marketing actions with empirically grounded expectations of incremental revenue impact.
subject: Articles
  topic: section
creator: Karim Nabil Haddad
creator: Rami Georges Khoury
creator: Tarek Elias Mansour
rights: Copyright (c) 2023 authors https://creativecommons.org/licenses/by-nc-nd/4.0
date: 2023-10-04
publication date: 2023-10-04
starting page: 1
ending page: 17

Benchmarking of Optimization and Heuristic Conflict Resolution Maneuvers for UAS Detect-and-Avoid Systems
type: item
description: Uncrewed aircraft systems operating in shared airspace require detect-and-avoid capabilities that can systematically reduce the probability of mid-air conflict while remaining compatible with existing separation practices. As traffic density increases and mission profiles diversify, both optimization-based and heuristic conflict resolution maneuvers are being integrated into detect-and-avoid architectures to support timely and interpretable decision making under uncertainty. This paper examines a benchmarking methodology for such maneuvers in structured and unstructured airspace, focusing on horizontally and vertically coordinated resolutions subject to performance envelopes and surveillance latencies. The study defines a consistent encounter modeling framework, introduces several representative resolution algorithms, and evaluates their behavior over a wide set of geometrically diverse and operationally plausible conflicts. The benchmark emphasizes repeatable assessment of feasibility, computational burden, robustness to state and intent uncertainty, and sensitivity to sensing and communication constraints. Results are reported in terms of separation maintenance, maneuver aggressiveness, and path efficiency rather than in terms of any singular optimality claim. The analysis is constructed to highlight differences between convex and nonconvex optimization formulations and between rule-based and randomized heuristic schemes, under homogeneous comparison conditions. The overall objective is to contribute a technically transparent basis for comparing candidate detect-and-avoid maneuvering logics and to outline where different classes of algorithms exhibit consistent strengths, weaknesses, and trade-offs across a large ensemble of encounter situations.
subject: Articles
  topic: section
creator: Nguyen Hoang Minh
creator: Tran Thi Lan
creator: Pham Duc Bao
rights: Copyright (c) 2025 authors
date: 2025-10-04
publication date: 2025-10-04
starting page: 1
ending page: 19

Time-Domain Analysis Techniques for Characterizing Discontinuities in High-Speed Digital Systems
type: item
description: High-speed digital systems increasingly rely on dense interconnects, layered substrates, and heterogeneous packaging whose discontinuities dominate link behavior. As signaling rates have pushed beyond multi-gigabit per second regimes, the classical frequency-domain characterization alone becomes insufficient for diagnosing localized faults, mapping spatially distributed irregularities, and predicting waveform integrity under realistic launch conditions. Time-domain analysis offers a complementary perspective by interrogating the system with broadband steps and impulses and observing causal reflections and transmissions that encode geometry, materials, and topology. This paper presents a unified treatment of time-domain techniques for identifying, modeling, and quantifying discontinuities across packages, vias, connectors, bond wires, and on-board interconnect transitions. Emphasis is placed on forward models that directly link propagation physics to measured waveforms, on inverse formulations that regularize ill-posed deconvolutions, and on macromodels that preserve causality and passivity for system-level simulation. We develop algorithms that exploit sparsity, multiport structure, and controlled excitations to separate overlapping echoes, distinguish closely spaced features, and estimate parametric elements that map to physical constructs. Practical instrumentation issues—including finite risetime, aperture averaging, jitter, fixture de-embedding, and noise—are integrated into the derivations to produce operationally relevant procedures. The proposed framework connects measurement to design through uncertainty-aware parameter extraction and verification on synthetic and measured cases, enabling predictive closure between layout intent and eye diagram performance. The resulting methods translate raw reflectometry and transmission data into actionable models for layout optimization, compliance evaluation, and failure analysis without reliance on extensive frequency …
subject: Articles
  topic: section
creator: Nuwan Perera
creator: Sajith Fernando
creator: Tharindu Wijesinghe
rights: Copyright (c) 2025 authors
date: 2025-09-30
publication date: 2025-09-30
starting page: 1
ending page: 17

Computational Simulation and Algorithmic Analysis of Occupational Health Risk Dynamics in Labor Markets and Their Policy Implications in Developing Regions
type: item
description: Occupational health risks in developing regions present complex multifaceted challenges that significantly impact both individual worker welfare and broader economic productivity. The intersection of inadequate regulatory frameworks and limited healthcare infrastructure creates a particularly vulnerable environment for industrial workers. This study presents a comprehensive computational framework for analyzing occupational health risk dynamics within labor markets of developing regions, incorporating advanced algorithmic methodologies to model the intricate relationships between workplace hazards, worker demographics, economic pressures, and policy interventions. Our approach utilizes sophisticated simulation techniques to examine how various risk factors propagate through different industrial sectors and geographical regions, considering the temporal evolution of health outcomes and their cascading effects on labor market stability. The computational model integrates multiple data streams including environmental monitoring data, worker health records, economic indicators, and regulatory compliance metrics to provide a holistic view of occupational health dynamics. Through extensive algorithmic analysis, we identify critical threshold points where minor policy adjustments can yield substantial improvements in worker safety outcomes while maintaining economic competitiveness. The simulation results demonstrate that targeted interventions focusing on high-risk industry clusters can achieve up to 34\% reduction in occupational health incidents while requiring only modest increases in regulatory oversight costs. Furthermore, our analysis reveals that the implementation of predictive monitoring systems can provide early warning capabilities for emerging health risks, potentially preventing large-scale occupational health crises before they manifest in measurable health outcomes.
subject: Articles
  topic: section
creator: Anil Perera
creator: Arjun Chhetri
rights: Copyright (c) 2025 authors
date: 2025-06-04
publication date: 2025-06-04
starting page: 1
ending page: 14

Complexity Theory and the Macroeconomic Determinants of Smoking: Feedback Loops, Social Norms, and Behavioral Reinforcement
type: item
description: Tobacco consumption patterns exhibit complex macroeconomic interdependencies that traditional linear models inadequately capture, necessitating sophisticated analytical frameworks to understand the multifaceted relationships between economic variables and smoking behavior. This research applies complexity theory and nonlinear dynamical systems to examine the macroeconomic determinants of smoking prevalence, investigating how economic shocks, policy interventions, and social feedback mechanisms create emergent behavioral patterns at the population level. Through the development of a comprehensive mathematical model incorporating stochastic differential equations and agent-based modeling components, we analyze the dynamic interactions between income distribution, price elasticity, social network effects, and temporal smoking cessation patterns. The model reveals that smoking behavior exhibits critical phase transitions, hysteresis effects, and path-dependent trajectories that emerge from the interaction of individual choices with macroeconomic conditions. Our findings demonstrate that conventional economic models systematically underestimate the persistence of smoking habits and the delayed response to policy interventions due to their failure to account for complex feedback loops and social reinforcement mechanisms. The research shows that economic inequality amplifies smoking disparities through nonlinear threshold effects, while social network clustering creates localized pockets of resistance to cessation efforts. These results have profound implications for public health policy design, suggesting that effective tobacco control requires coordinated interventions that address both economic and social dimensions simultaneously, with particular attention to timing and sequencing of interventions to leverage positive feedback cascades.
subject: Articles
  topic: section
creator: Diego Montalvo
creator: Luis Fernando Restrepo
rights: Copyright (c) 2024 authors
date: 2024-07-04
publication date: 2024-07-04
starting page: 1
ending page: 16

Security Auditing and Information Assurance in Information Systems: A Practical Approach to Risk Identification and Mitigation
type: item
description: The rapid rise of cyber threats, coupled with the increasing dependence on digital infrastructure across industries worldwide, has made information systems security auditing a crucial area of focus in cybersecurity. This research paper provides a detailed examination of auditing methodologies and information assurance frameworks, highlighting practical strategies for identifying risks and addressing vulnerabilities in modern information systems. It reviews the shift from compliance-oriented auditing approaches to risk-based methods that incorporate advanced threat modeling, real-time monitoring, and adaptive assessment techniques. By analyzing industry practices, regulatory requirements, and the challenges introduced by emerging technologies, this study proposes a framework for implementing effective auditing processes that consider both technical weaknesses and organizational risk factors. The findings show that strong information assurance programs must integrate multiple methodologies, including penetration testing, vulnerability assessments, configuration reviews, and behavioral analytics. Evidence indicates that organizations with comprehensive auditing programs achieve a 67\% decrease in successful cyberattacks and respond to incidents 43\% faster than those relying only on traditional security measures. The paper concludes with recommendations for building adaptive auditing frameworks that can adjust to evolving threats while maintaining both operational efficiency and regulatory compliance. These findings contribute to the broader understanding of information assurance as a strategic organizational capability rather than merely a technical function.
subject: Articles
  topic: section
creator: Diego Montalvo
creator: Luis Quishpe
rights: Copyright (c) 2024 authors
date: 2024-12-04
publication date: 2024-12-04
starting page: 1
ending page: 22

Improving Healthcare Supply Chain Efficiency through Predictive Analytics and Machine Learning: A Data-Driven Management Framework
type: item
description: The COVID-19 pandemic exposed deep vulnerabilities in healthcare supply chains, highlighting the need for more agile and predictive inventory management systems. Conventional supply chain strategies in healthcare often rely on reactive models that lack scalability. This paper presents a comprehensive framework for optimizing healthcare supply chain management through advanced predictive analytics and machine learning methodologies. Healthcare organizations face significant challenges in maintaining efficient supply chains, including demand volatility, inventory management complexities, and resource constraints. Our proposed framework integrates multi-dimensional data streams from various healthcare operational sources to create a robust predictive ecosystem that enhances decision-making processes across the supply chain continuum. We demonstrate that the implementation of ensemble machine learning algorithms, specifically utilizing gradient-boosted decision trees and deep neural networks in a hybrid configuration, can predict demand fluctuations with 93.7\% accuracy and reduce inventory holding costs by 27.4\% while maintaining service levels above 98.5\%. The mathematical modeling component establishes a novel stochastic optimization approach that accounts for the unique constraints of healthcare environments, including perishability factors and critical item prioritization. Case evaluations across three distinct healthcare systems validate the framework's efficacy, revealing significant improvements in operational metrics, including a 31.8\% reduction in stockout events and a 42.3\% decrease in emergency procurement instances. This research contributes a scalable, adaptable solution for healthcare supply chain optimization that bridges theoretical advancements with practical implementation considerations.
subject: Articles
  topic: section
creator: Thiago Moreira
creator: Camila Siqueira
rights: Copyright (c) 2025 authors
date: 2025-05-04
publication date: 2025-05-04
starting page: 1
ending page: 18

Predictive Analytics for Budget Optimization and Financial Stewardship Across Integrated Healthcare Networks
type: item
description: Effective financial management in healthcare systems is increasingly challenged by rising costs, regulatory complexities, and unpredictable patient demand. Traditional forecasting methods often fall short in capturing the dynamic and uncertain nature of healthcare operations. This paper presents a novel framework for predictive analytics in healthcare financial management that integrates machine learning algorithms with stochastic optimization techniques to improve budget allocation and financial stewardship across integrated healthcare networks. We develop a comprehensive mathematical model that captures the complex interdependencies between clinical operations, resource allocation, and financial outcomes while accounting for inherent uncertainties in patient volume, reimbursement rates, and operational costs. Our methodology incorporates multi-objective optimization techniques to balance competing priorities including cost containment, quality improvement, and sustainable growth trajectories. Empirical validation of our approach using synthetic data generated from distributions derived from healthcare operational parameters demonstrates significant improvements in predictive accuracy compared to traditional forecasting methods, with mean absolute percentage error reduced by 47.2\% and root mean squared error decreased by 39.8\%. The model exhibits particular strength in capturing non-linear relationships between operational variables and financial outcomes, especially during periods of high volatility. Implementation considerations are discussed, addressing computational requirements, data governance frameworks, and organizational change management protocols necessary for successful deployment. These findings suggest that sophisticated predictive analytics can substantially enhance financial decision-making processes and resource stewardship in complex healthcare environments while supporting strategic organizational objectives.
subject: Articles
  topic: section
creator: Andrés Camacho
creator: Laura Beltrán
rights: Copyright (c) 2023 authors
date: 2023-08-04
publication date: 2023-08-04
starting page: 1
ending page: 17

Monte Carlo Simulations of Silica Oligomerization: A Comparative Study of Parallel Tempering, Umbrella Sampling, and Metadynamics
type: item
description: Monte Carlo (MC) simulations of silica oligomerization face significant challenges due to rare event dynamics and high free energy barriers inherent in polymerization reactions. This study introduces a systematic evaluation of advanced sampling algorithms—Parallel Tempering (PT), Umbrella Sampling (US), and Metadynamics (MetaD)—to enhance phase space exploration and accelerate convergence in silica systems. The Beest-Kramer-van Santen (BKS) potential was employed to model interatomic interactions, with explicit parameterization of Si-O bond dissociation energies (ESi-O ≈ 4.5 eV) and angular terms governing tetrahedral coordination. Reaction coordinates such as the degree of polymerization (Qn, where n denotes the number of bridging oxygens) and ring statistics were analyzed to quantify oligomer distributions. PT simulations utilized 32 replicas spanning T = 300–2000 K, achieving exchange probabilities of 15% via optimized temperature spacing. US applied harmonic biases (k = 200 kcal/mol·˚A2) along Qn, while MetaD employed Gaussian deposition (σ = 0.2, ω = 1.2 kcal/mol) every 500 MC steps. Validation against experimental 29Si NMR data revealed PT and MetaD reduced sampling error by 62% compared to conventional Metropolis-Hastings MC. Activation free energies (∆G‡) for trimer formation decreased from 28.3 ± 1.5 kcal/mol (standard MC) to 19.8 ± 0.9 kcal/mol (MetaD), aligning with Arrhenius-derived estimates. Convergence analysis demonstrated PT achieved ergodicity in 106 steps versus 108 for brute-force methods. These results establish that advanced sampling algorithms mitigate kinetic trapping and enable atomistic prediction of silica gelation kinetics under ambient conditions.
subject: Articles
  topic: section
creator: Carlos Mendoza
creator: Valeria Ríos
rights: Copyright (c) 2019 authors
date: 2019-08-04
publication date: 2019-08-04
starting page: 1
ending page: 12

Real-time Analytics in the Cloud: Overcoming Latency and Throughput Challenges for Big Data Streams
type: item
description: Real-time analytics in the cloud presents significant challenges in mitigating latency and maintaining high throughput for big data streams. Achieving reliable performance in such dynamic environments requires a careful examination of data ingestion protocols, distributed processing frameworks, and resource allocation policies. One major concern is ensuring that the rapidly incoming data flows are balanced against available computing and networking capacities, allowing analytics systems to sustain predictable response times even under variable loads. Another crucial factor lies in the parallelization strategies, where accurate distribution of tasks across multiple nodes helps reduce both time to process individual records and overall system delays. Additionally, adaptive buffering mechanisms are essential for reconciling bursty data arrivals, hardware constraints, and internal scheduling complexities. Advances in cloud orchestration and virtualized compute clusters have made it possible to dynamically scale resource pools on demand, mitigating sudden throughput spikes. Methods that incorporate deep performance modeling, iterative optimization, and probabilistic guarantees can address the complexity of asynchronous data pipelines. When integrated properly, these approaches can achieve low end-to-end latencies without sacrificing throughput, even when stream velocity and data volume grow significantly. The purpose of this discussion is to explore the fundamental architectural, mathematical, and operational techniques that facilitate real-time analytics, offering methods for robust handling of latency-sensitive big data streams in cloud environments.
subject: Articles
  topic: section
creator: Juan Camilo Rojas
rights: Copyright (c) 2023 author
date: 2023-05-04
publication date: 2023-05-04
starting page: 1
ending page: 12

Multiscale Numerical Methods for Modeling Biofluid Dynamics Across Cellular to Organ-Level Scales
type: item
description: The multiscale modeling of biofluid dynamics presents a formidable challenge due to the inherent complexity of physiological systems, where interactions span molecular, cellular, tissue, and organ-level scales. This paper systematically examines advanced numerical methodologies tailored to address these cross-scale phenomena, focusing on their mathematical underpinnings, computational trade-offs, and physiological fidelity. We critically evaluate continuum-based approaches, such as the Navier-Stokes equations with hybrid viscoelastic constitutive models, against discrete particle methods, including dissipative particle dynamics and lattice Boltzmann formulations. Special emphasis is placed on interface-capturing techniques like the immersed boundary method and arbitrary Lagrangian-Eulerian frameworks for resolving fluid-structure interactions in deformable biological tissues. Furthermore, we analyze homogenization strategies for bridging cellular-scale phenomena—such as endothelial shear stress sensing—to macroscopic hemodynamic simulations. A comparative assessment of monolithic versus partitioned coupling schemes reveals critical insights into numerical stability and scalability for large-scale vascular simulations. The discussion extends to recent advances in data-driven surrogate modeling, which synergize reduced-order physics with machine learning to alleviate computational bottlenecks. By contextualizing these approaches against experimental validations in vascular flow and pulmonary dynamics, this work provides a rigorous framework for selecting appropriate multiscale strategies based on accuracy, efficiency, and target physiological observables.
subject: Articles
  topic: section
creator: Luis Eduardo Martínez
creator: Carlos Andrés Guevara
rights: Copyright (c) 2025 authors
date: 2025-02-07
publication date: 2025-02-07
starting page: 11
ending page: 29

Efficient Search Algorithms Leveraging Inverted Indexing and Parallel Processing for Large-Scale Commonsense Knowledge Repositories
type: item
description: This paper investigates advanced search algorithms that leverage inverted indexing techniques and parallel processing paradigms to efficiently query large-scale commonsense knowledge repositories. By focusing on data structures optimized for distributed retrieval and concurrency, we aim to address the escalating demands of real-time, high-volume information access in knowledge-driven systems. Through a detailed exploration of indexing mechanisms designed to decompose textual and symbolic data into token-based entry points, our approach enables near-instant lookup of relevant concepts and relations within massive knowledge bases. We highlight how parallelization strategies—involving thread-level, process-level, and cluster-level execution—augment both query speed and overall throughput. Our discussion further integrates considerations of memory optimization and caching policies that minimize overhead when dealing with highly interconnected commonsense data. We underscore the importance of structured representations and logic-based schemas in guiding index construction, preserving semantic linkages while maintaining computational tractability. This work contributes not only to bridging gaps in retrieval latency but also to improving the scalability of large-scale knowledge infrastructures deployed across diverse application domains, including natural language understanding and automated reasoning. Empirical analysis reveals the performance gains of parallel indexing and searching, demonstrating resilience against growing data volumes and heterogeneous access patterns. Ultimately, these findings provide a robust framework for real-time commonsense retrieval at scale, advancing the capabilities of next-generation intelligent systems.
subject: Articles
  topic: section
creator: Juan Camilo Rojas
creator: Andres Felipe Moreno
rights: Copyright (c) 2020 author
date: 2020-04-04
publication date: 2020-04-04
starting page: 1
ending page: 15

Machine Comprehension through Attention Mechanisms in Encoder-Decoder Architectures
type: item
description: Machine comprehension has evolved into a pivotal area of natural language processing, underscoring the ability of models to grasp and interpret language at near-human levels. Recent advances in deep learning have introduced attention-based methodologies, boosting performance by dynamically focusing on the most relevant parts of the input sequence. However, the successful integration of attention mechanisms into encoder-decoder architectures demands a thorough understanding of both the theoretical underpinnings and practical optimizations. In particular, the emergence of self-attention and cross-attention variants has broadened the operational scope of neural architectures, allowing for improved context modeling and reduced dependency on strictly sequential inputs. Such innovations have been further fortified by algorithmic enhancements that enable large-scale parallel training. This paper explores the technical intricacies of attention-driven encoder-decoder frameworks for machine comprehension. We examine mathematical formulations, representational approaches, and empirical results that collectively illustrate how attention can refine context-sensitive inferences in complex datasets. Our analysis underscores the significance of architectural considerations, optimization strategies, and comprehensive evaluations. Ultimately, we aim to provide a cohesive, in-depth understanding of how attention mechanisms can be deployed to achieve advanced levels of machine comprehension while preserving computational efficiency and accuracy. By dissecting theoretical constructs and reflecting on state-of-the-art applications, we present actionable insights for researchers aiming to push the boundaries of language understanding.
subject: Articles
  topic: section
creator: Hassan Elsayed
rights: Copyright (c) 2018 author
date: 2018-12-04
publication date: 2018-12-04
starting page: 1
ending page: 15

The Impact of Hallucinated Information in Large Language Models on Student Learning Outcomes: A Critical Examination of Misinformation Risks in AI-Assisted Education
type: item
description: Large Language Models rely on extensive training corpora and sophisticated neural architectures to generate linguistic output that can exhibit coherent reasoning. Educational institutions increasingly adopt these systems to supplement instructional content and automate routine tasks. Students who interact with AI-generated material face exposure to text that may include factual inaccuracies, misleading statements, or hallucinated sources. Researchers document instances where these models create spurious references or invent data that can degrade learners’ conceptual frameworks. Administrators who depend on AI outputs risk introducing unvetted material into digital classrooms, thus creating a latent hazard for propagating incorrect information on scientific, historical, or procedural topics. Scholars argue that the subtle nature of such errors complicates detection, since plausible stylistic features can obscure underlying falsities. Hallucinated information can erode trust in validated knowledge, undermine the development of critical thinking skills, and impede the accurate formation of disciplinary expertise. Teachers who rely on unverified AI-generated content may inadvertently endorse erroneous claims, thereby complicating their attempts to cultivate reliable understanding among students. This research paper scrutinizes how hallucinated information in AI systems circulates within academic environments and analyzes its consequences for pedagogical objectives. Robust examination of these dynamics addresses the multifaceted risks posed by Large Language Models to the integrity of student learning outcomes.
subject: Articles
  topic: section
creator: Hassan Elsayed
rights: Copyright (c) 2024 author
date: 2024-08-07
publication date: 2024-08-07
starting page: 11
ending page: 23

Design of Cloud-Facilitated Data Repositories for Large-Scale Traffic Pattern Analyses
type: item
description: Cloud-based storage and processing frameworks have transformed large-scale traffic pattern analyses by offering accessible, flexible, and reliable data infrastructures. The purpose of this research is to address strategies for designing robust, scalable repositories tailored for the complex demands of traffic data management and computation. Advanced approaches for aggregating and cleaning large quantities of heterogeneous data from multiple sources remain central to ensuring high-quality inputs. Multilevel data structures, distributed processing techniques, and efficient ingestion pipelines can greatly improve analytical performance, enabling real-time insights into congestion control, route planning, and capacity management. This paper proposes systematic models for evaluating resource allocation, emphasizing modular architectures that allow seamless integration with machine learning and data mining algorithms. Cloud technologies provide potent virtualization capabilities, allowing traffic specialists to expand and contract storage and processing resources based on continuous monitoring of usage patterns. Mathematical models driven by linear algebra establish rigorous frameworks for capturing correlations among traffic variables, detecting anomalies, and forecasting road usage trends. Challenges related to security, data integrity, and resource distribution are addressed through end-to-end encryption and consensus-based replication protocols. The overall aim is to illustrate how strategic interactions between cloud technologies and linear algebraic techniques can reliably support large-scale traffic analyses, resulting in improved scalability, accuracy, and operational efficiency.
subject: Articles
  topic: section
creator: Nuwan Perera
rights: Copyright (c) 2025 author
date: 2025-02-04
publication date: 2025-02-04
starting page: 1
ending page: 10

Conversational AI and Chatbot Systems for Enhancing Automated Billing, Payments, and Customer Support in SaaS Platforms
type: item
description: Automated billing, payment processing, and customer support represent critical components in modern Software-as-a-Service (SaaS) environments. Conversational AI and chatbot systems streamline these areas by facilitating real-time interactions with customers, reducing manual interventions, and enhancing operational efficiencies. Advancements in natural language understanding and dialogue management frameworks extend the capabilities of chatbots, allowing them to interpret ambiguous user queries, provide clear payment instructions, and escalate issues to human agents when complexities arise. Large-scale language models with self-attention architectures enable robust handling of diverse user inputs, while reinforcement learning techniques refine the system’s responses through continuous feedback loops. Novel data analytics tools capture nuanced financial details and user preferences, ensuring that billing processes remain transparent and error-free. Integration of chatbots into existing financial workflows demands attention to security protocols, data encryption, and regulatory compliance. Emerging trends involve multi-modal interfaces and voice-driven transactions that simplify processes and minimize friction for end users. Detailed studies reveal that next-generation conversational systems reduce support overhead by automating repetitive tasks and delivering instantaneous assistance, even under high-traffic conditions. This paper presents conceptual frameworks, mathematical modeling approaches, and performance metrics for building conversational AI systems optimized for SaaS billing and payment operations. Results underscore the potential for significant improvements in efficiency and user satisfaction through well-designed, AI-driven chatbots.
subject: Articles
  topic: section
creator: Dewi Kusuma Wardani
creator: Laura Fernanda Malagón Navarro
rights: Copyright (c) 2024 authors
date: 2024-08-04
publication date: 2024-08-04
starting page: 1
ending page: 10