论文标题

通过分析时间序列数据质量的新兴经济体预测作物价格的框架

A Framework for Crop Price Forecasting in Emerging Economies by Analyzing the Quality of Time-series Data

论文作者

Jain, Ayush, Marvaniya, Smit, Godbole, Shantanu, Munigala, Vitobha

论文摘要

作物价格预测技术的准确性很重要,因为它使供应链规划师和政府机构能够通过估计需求和供应等市场因素采取适当的行动。在印度等新兴经济体中,市场上的农作物价格每天都在手动输入,这可能会遭受人类诱发的错误,例如输入不正确的数据或无数据输入了很多天。除了这种易于人类的错误外,价格本身的波动使创造稳定且稳健的预测解决方案成为一项艰巨的任务。考虑到农作物价格预测的这种复杂性,在本文中,我们提出了构建强大的作物价格预测模型的技术,考虑了各种特征,例如(i)农作物的历史价格和市场到达数量,(ii)影响作物生产和运输的历史天气数据,(iii)通过执行统计分析获得的数据质量相关特征。我们还提出了一个基于上下文的模型选择和重新培训的框架,即考虑因素,例如模型稳定性,数据质量指标和作物价格的趋势分析。为了显示拟议方法的功效,我们在印度的14个市场上显示了两种农作物的实验结果 - 番茄和玉米玉米,并证明,与标准预测技术相比,提出的方法不仅可以显着提高准确度指标,而且还提供了强大的模型。

Accuracy of crop price forecasting techniques is important because it enables the supply chain planners and government bodies to take appropriate actions by estimating market factors such as demand and supply. In emerging economies such as India, the crop prices at marketplaces are manually entered every day, which can be prone to human-induced errors like the entry of incorrect data or entry of no data for many days. In addition to such human prone errors, the fluctuations in the prices itself make the creation of stable and robust forecasting solution a challenging task. Considering such complexities in crop price forecasting, in this paper, we present techniques to build robust crop price prediction models considering various features such as (i) historical price and market arrival quantity of crops, (ii) historical weather data that influence crop production and transportation, (iii) data quality-related features obtained by performing statistical analysis. We additionally propose a framework for context-based model selection and retraining considering factors such as model stability, data quality metrics, and trend analysis of crop prices. To show the efficacy of the proposed approach, we show experimental results on two crops - Tomato and Maize for 14 marketplaces in India and demonstrate that the proposed approach not only improves accuracy metrics significantly when compared against the standard forecasting techniques but also provides robust models.

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