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Daily Archives: September 12, 2025

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White Wine Pricing A Mathematical Model for Determining Optimal Retail Value Based on Chemical Properties

Authors: Safaan Shawl

Abstract: In an era increasingly dominated by algorithmic precision and data-driven decision-making, the question of whether an artisanal product such as white wine can be priced through a deterministic model seems both audacious and tantalising. This paper embarks on precisely that odyssey—an independent attempt to formulate an original pricing algorithm for white wines by reverse-engineering the latent relationships between their physicochemical properties and their market value. Drawing from publicly available datasets and deploying statistical intuition rather than merely machine learning brute force, this research proposes a novel, human-designed formula that accurately estimates the price of white wines. The formula integrates variables such as acidity, sulphates, residual sugar, and volatile acidity—each weighted with philosophical and economic significance—into a predictive framework that is both interpretable and intuitive. Unlike conventional black-box regressions, the methodology underscores transparency, causal inference, and domain-sensitive calibration. This work is not only a tribute to the enduring relevance of analytical thinking in a machine age but also a call for more interdisciplinary bridges between oenology and economics, chemistry and computation, palate and price. It aims to empower connoisseurs, traders, and vineyards alike to understand, forecast, and perhaps demystify the economics swirling within every bottle. The findings reveal a striking congruence between predicted and actual price tiers, suggesting that white wine pricing, far from being capricious or arbitrary, often adheres to a hidden logic that this paper attempts to uncover and articulate.

DOI: https://doi.org/10.5281/zenodo.17104035

 

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Hybrid CNN–LSTM Deep Learning Model For Forecasting PM2.5 And PM10 Concentrations In Lucknow, India

Authors: Aditya Verma, Himanshu Ranjan, Manoj Kumar Yadav, Sushant Kumar

Abstract: The Indo-Gangetic Plain of India continues to face a serious environmental and public health problem due to air pollution, as particulate matter (PM2.5 and PM10) continuously surpasses permissible limits. In order to predict particulate matter concentrations in Lucknow, India, this study creates a hybrid Convolutional Neural Network–Long Short-Term Memory (CNN–LSTM) model utilising an eight-year dataset (2017–2024) of meteorological and air quality indicators. To guarantee dependability, the data underwent preprocessing using min–max normalisation, wind vector reconstruction, interpolation, and outlier correction. Through the integration of CNN's feature extraction and LSTM's sequential learning, the CNN–LSTM model is able to capture temporal relationships as well as spatial correlations. R2, RMSE, MAE, and MAPE were used to compare performance to standalone models. According to the results, the hybrid method successfully reproduced seasonal variability, including winter peaks and monsoon-driven falls, with the maximum accuracy (R2 = 0.658 for PM2.5; R2 = 0.754 for PM10). The CNN–LSTM outperformed other models in terms of robustness and generalisability, although somewhat underestimating intense episodic surges. Under India's National Clean Air Programme (NCAP), the results highlight the model's potential as a decision-support tool for early warning systems and policy actions. The importance of deep learning hybrids for long-term air quality control in heavily polluted metropolitan areas is demonstrated by this work.

DOI: https://doi.org/10.5281/zenodo.17103728

 

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