
2 RELATED WORKS
The prediction of food price has been the focus of
great interests particularly in the agricultural domain
because of its significant responsibility in food
security and economic stability. Machine learning
(ML) can be found in myriad forms and has
progressed rapidly in the last decade, giving rise to a
host of robust price prediction models. In this
respect, machine learning-based algorithms like
Convolutional Neural Networks (CNN), Recurrent
Neural Networks (RNN), and hybrid models
outperformed and dominate the prediction of
complex non-linear price fluctuations in the context
of agricultural decision-making. These models can
process large data sets, reveal underlying patterns,
and provide insights into potential benefits that can
mitigate risks associated with price volatility Park, J.,
et al. [2021].
2.1 Use of Deep Learning Models
Deep learning models, particularly CNNs and RNNs,
have been widely applied to time-series forecasting
because they can detect sequential patterns based on
past price data. Hence, CNNs have been
progressively leveraged to quantify and interpret
agricultural price data as per its spatio-temporal
distinctive features. CNNs are good-suited to capture
spatial dependencies within the geographical
regions, which can be considered as beneficial for
regional price prediction Zhou, X., et al. [2021]. In
contrast, RNNs, and particularly Long Short-Term
Memory (LSTM) networks, have proven to be more
effective at capturing temporal dependent
information, which are changing and strongly related
data points across time (e.g., seasonal variations of
agricultural rice prices). LSTM networks have been
proven to enhance prediction accuracy especially for
markets subject to cyclic trends, due to their
capability of retaining data over longer period Wang,
T., & Guo, M. [2018].
2.2 Hybrid Models in Price Forecasting
Hybrid models that build on the strengths of
traditional econometric modelling and machine
learning algorithms are also becoming increasingly
popular in the food price forecasting domain. One can
increase the power of such methods, for example
using ensemble-based approaches by combining
statistical models such as Autoregressive Integrated
Moving Average (ARIMA) with machine learning
models (such as Random Forest (RF), Support Vector
Machines (SVM)) The hybrid methodologies
combine the advantages of the statistical techniques
for handling transient behaviors and machine
learning models to account for complex long-term
trends Tang, Y., et al. [2022].
2.3 Region-Specific Forecasting Models
Yet, when training on the entire dataset, several
studies have pointed out that forecasting models
trained on the same regions do not lead to a better
testing performance than region-specific models
trained on region-specific data. At the same time, the
performance of a forecasting model is very reliant on
the quality and relevance of the data base. It has been
evidenced that models trained on local weather
patterns, crop yields and regional demand variation
could outperform generic models, especially in the
context of heterogeneous agricultural conditions seen
in regions such as Western Tamil Nadu (14). For
example, these studies indicate that models which are
regionalized can better capture the climatic and
economic factors at play in each area, as those can
prove to have significant effects on agricultural
prices trends Arora, P., & Singh, R. [2023].
The monsoon and dry seasons have a huge
impact on agriculture in Western Tamil Nadu and so
we should, time allowing, get a sense of the local
dynamics here. Some of the improvements in
forecasting accuracy, which leads to more-targeted
interventions, can be achieved by including such
variables as rainfall, temperature variations and
changing market demand Gupta, K., & Chatterjee, S.
[2022].
2.4 Role of Data Integration in
Enhancing Prediction Accuracy
The Integrated Assessment models and the use of
data network theory have also been introduced in the
literature as approaches to quantitatively and
fundamentally address the intricacies of how climate
variability impacts food prices, creating other
additional food opportunities, and ultimately revise
key parameters of food prices on a more fundamental
and systemic approach per se.{Prepared by Data
Diaries}) For example, incorporating external
variables into these models, such as inflation rates,
trade policies, and global commodity price
movements, also results in a richer set of data to work
with, sending insights about market behaviour Patel,
A., et al. [2019]. By bringing together sources of data
Predictive Analytics for Future Food Product Price Forecasting in Western Tamil Nadu
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