“…There has been research in this area (Navarro et al, 2000;Abdulaziz et al, 2015;Ramos et al, 2017), but there is generally little research in this field and there is a lack of centralized data repositories in the tourism sector, especially data lake repositories • Analytical techniques: The most commonly used analytical techniques in tourism research are identified. We obtain a wide range of analytical techniques, among which we can highlight: clustering (Feng et al, 2022), personalization (Gupta et al, 2022), collaborative-filtering (He, 2022), machine learning (Kayakus, 2022), recommender-systems (Julashokri et al, 2022), data-mining (Ma, 2022), text mining (Loureiro et al, 2022), natural language processing (Ray & Bala, 2021), or deep learning (law et al, 2019). some of the techniques identified like: text mining, sentimental analysis or natural language processing are applied to unstructured text-type information, which is the information typically collected in the sources like UGC or online reviews identified in the data sources area.…”