Table 1 A comparison of the related studies based on tourism forecasting.

From: Predicting tourism growth in Saudi Arabia with machine learning models for vision 2030 perspective

Study

Region

Used dataset

Method(s)

Data period

Key findings

Limitations

17

Global

A dataset for most of countries between 2010 to 2020

SVR, RF

2010–2020

SVR achieved 99.4% accuracy

Lacks regional/contextual focus

18

Global

Private Dataset

SVM, RF, DT

Annual & Quarterly

SVM performed best on quarterly data

No integration of external drivers

20

Global

Private Dataset

ANN, RNN, LSTM

Multi-year

LSTM superior for motivational features

Limited interpretability

21

Global

Collected data from Google Trends

AFSO-DGRU

Web search data

MAPE 1.34

Requires high-quality search data

22

Saudi Arabia

HAJJv2 dataset-based videos

Gradient Boosting

Hajj Data

87% accuracy, 93% precision, 87% recall, and 84% F1-score;

Not a forecasting model

23

Saudi Arabia

Private Datasets from the Saudi Tourism Authority (2015–2021)

RF, DT, SVM, GNB

2015–2021

Gaussian Naive Bayes reached 99.993%; Accurate spending prediction

No demand forecasting

24

Saudi Arabia

Data obtained from the Saudi Tourism Information and Research Centre (MAS) (2000–2019

Gravity Models

2000–2019

Positive economic impact

Limited interpretability

4

Saudi Arabia

Collected data from the General Authority for Open Data statistics

Liner regression, Naive Baye

2020–2023

Naive Baye had the least deviation;

No demand forecasting