DOI:

https://doi.org/10.14483/23448393.19423

Published:

2024-01-13

Issue:

Vol. 29 No. 1 (2024): January-April

Section:

Computational Intelligence

Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming

Metodología para la gestión de inventario en tiendas de barrio utilizando aprendizaje de máquina y programación lineal entera

Authors

Keywords:

Machine learning, inventory, constrained optimization, demand estimation (en).

Keywords:

Aprendizaje de máquina, inventario, optimización restringida, estimación de la demanda (es).

Abstract (en)

Context: Nowadays, inventory management poses a challenge given the constant demands related to temporality, geographic location, price variability, and budget availability, among others. In neighborhood shops, this process is manually done based on experience (the data generated are ignored), which is sometimes not enough to respond to changes. This shows the need to develop new strategies and tools that use data analysis techniques.

Method: Our methodology predicts the weekly demand for 14 common products in neighborhood stores, which is later refined based on investment capital. The method is validated using a database built with synthetic information extracted from statistical sampling. For the prediction model, three supervised learning models are used: support vector machines (SVM), AutoRegressive models (Arx), and Gaussian processes (GP). This work proposes a restricted linear model given an inversion and the predicted quantity of products; the aim is to refine the prediction while maximizing the shopkeeper's profit. Finally, the problem is solved by applying an integer linear programming paradigm.

Results: Tests regarding the prediction and inventory adjustment stages are conducted, showing that the methodology can predict the temporal dynamics of the data by inferring the statistical moments of the distributions used. It is shown that it is possible to obtain a maximum profit with a lower investment.

Conclusions: Our method allows predicting and refining inventory management in a neighborhood store model where quantities are managed to maximize the shopkeeper's profits. This opens the way to explore this approach in a real scenario or to introduce new techniques that can improve its performance.

Abstract (es)

Contexto: En la actualidad, la administración del inventario representa un reto dadas las constantes exigencias de temporalidad, ubicación geográfica, variabilidad en los precios, disponibilidad presupuestal, entre otros. En las tiendas de barrio, este proceso se realiza de forma manual y con base en la experiencia (se ignoran los datos generados), lo que en ocasiones no es suficiente para responder a los cambios. Esto muestra la necesidad de desarrollar nuevas estrategias y herramientas que utilicen técnicas de análisis de datos.

Método: Nuestra metodología predice la demanda semanal para 14 productos comunes en tiendas de barrio, la cual se refina posteriormente en función del capital de inversión para optimizar la ganancia. El método se valida a través de una base de datos construida con información sintética extraída a partir de muestreo estadístico. Para la predicción, se utilizan tres modelos de aprendizaje supervisado: máquinas de soporte vectorial (SVM), modelos AutoRegresivos (ARx) y procesos Gaussianos (GP). Luego, se plantea un modelo lineal restringido dada una inversión y las cantidades pronosticadas; el propósito es refinar la predicción maximizando la ganancia del tendero. Finalmente, el problema se soluciona aplicando un paradigma de programación lineal entera.

Resultados: Se realizan pruebas para las etapas de predicción y ajustes del inventario, donde se demuestra que la metodología logra predecir la dinámica temporal de los datos infiriendo los momentos estadísticos de las distribuciones utilizadas. Se muestra que es posible obtener una máxima ganancia con un monto menor de inversión.

Conclusiones: Nuestra metodología que permite predecir y refinar la gestión de inventario en un modelo de tienda de barrio en el que las cantidades se administran para maximizar las ganancias del tendero. Lo anterior abre el camino para explorar este enfoque en un escenario real o introducir nuevas técnicas que puedan mejorar su desempeño.

Author Biographies

Carlos Alberto Henao-Baena, Technological University of Pereira

Professor at the Electronics Engineering Program of Universidad Tecnológica de Pereira

Bibiana Zuluaga-Zuluaga, National Training Service

Instructor linked to research processes at SENA Risaralda, Mercator group (Pereira, Colombia).

Julian Galeano-Castro, National Training Service

Instructor linked to research processes at SENA Risaralda, Mercator group (Pereira, Colombia)

Edward Jhohan Marín-García, University of Valle

Professor at Universidad del Valle, Cartago Campus (Cartago, Colombia)

Andrés Felipe Calvo-Salcedo, Technological University of Pereira

Full professor at Universidad Tecnológica de Pereira (Pereira, Colombia)

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How to Cite

APA

Henao-Baena, C. A., Zuluaga-Zuluaga, B., Galeano-Castro, J., Marín-García, E. J., and Calvo-Salcedo, A. F. (2024). Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming. Ingeniería, 29(1), e19423. https://doi.org/10.14483/23448393.19423

ACM

[1]
Henao-Baena, C.A. et al. 2024. Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming. Ingeniería. 29, 1 (Jan. 2024), e19423. DOI:https://doi.org/10.14483/23448393.19423.

ACS

(1)
Henao-Baena, C. A.; Zuluaga-Zuluaga, B.; Galeano-Castro, J.; Marín-García, E. J.; Calvo-Salcedo, A. F. Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming. Ing. 2024, 29, e19423.

ABNT

HENAO-BAENA, Carlos Alberto; ZULUAGA-ZULUAGA, Bibiana; GALEANO-CASTRO, Julian; MARÍN-GARCÍA, Edward Jhohan; CALVO-SALCEDO, Andrés Felipe. Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming. Ingeniería, [S. l.], v. 29, n. 1, p. e19423, 2024. DOI: 10.14483/23448393.19423. Disponível em: https://revistas.udistrital.edu.co/index.php/reving/article/view/19423. Acesso em: 30 apr. 2024.

Chicago

Henao-Baena, Carlos Alberto, Bibiana Zuluaga-Zuluaga, Julian Galeano-Castro, Edward Jhohan Marín-García, and Andrés Felipe Calvo-Salcedo. 2024. “Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming”. Ingeniería 29 (1):e19423. https://doi.org/10.14483/23448393.19423.

Harvard

Henao-Baena, C. A. (2024) “Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming”, Ingeniería, 29(1), p. e19423. doi: 10.14483/23448393.19423.

IEEE

[1]
C. A. Henao-Baena, B. Zuluaga-Zuluaga, J. Galeano-Castro, E. J. Marín-García, and A. F. Calvo-Salcedo, “Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming”, Ing., vol. 29, no. 1, p. e19423, Jan. 2024.

MLA

Henao-Baena, Carlos Alberto, et al. “Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming”. Ingeniería, vol. 29, no. 1, Jan. 2024, p. e19423, doi:10.14483/23448393.19423.

Turabian

Henao-Baena, Carlos Alberto, Bibiana Zuluaga-Zuluaga, Julian Galeano-Castro, Edward Jhohan Marín-García, and Andrés Felipe Calvo-Salcedo. “Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming”. Ingeniería 29, no. 1 (January 13, 2024): e19423. Accessed April 30, 2024. https://revistas.udistrital.edu.co/index.php/reving/article/view/19423.

Vancouver

1.
Henao-Baena CA, Zuluaga-Zuluaga B, Galeano-Castro J, Marín-García EJ, Calvo-Salcedo AF. Methodology for Inventory Management in Neighborhood Stores Using Machine Learning and Integer Linear Programming. Ing. [Internet]. 2024 Jan. 13 [cited 2024 Apr. 30];29(1):e19423. Available from: https://revistas.udistrital.edu.co/index.php/reving/article/view/19423

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