Table 7.
Keywords or search topics selected by topic words generated using the LDA model
| Type | Paris (A total of 30 keywords) | Amsterdam (A total of 20 keywords) | Lisbon (A total of 28 keywords) |
|---|---|---|---|
| Topic 1 | Cdg → Paris Charles de Gaulle Airport | Hotel → Amsterdam hotel | Train → Lisbon train |
| Train → Paris train | Restaurant → Amsterdam restaurant | Portugal → Portugal | |
| Metro → Paris metro | Amsterdam → Amsterdam | Travel → Lisbon travel | |
| Paris → Paris | Bus → Amsterdam bus | Station → Lisbon station | |
| Airport → Paris airport | Travel → Amsterdam travel | Weather → Lisbon weather | |
| Gare → Paris gare | Paris → Paris | Lisbon → Lisbon | |
| Orly → PARIS ORLY airport | Airport → Amsterdam airport | Passport → Lisbon passport | |
| Transportation → Paris transportation | Shop → Amsterdam shop | Dinner → Lisbon dinner | |
| Lyon → Lyon | Food → Amsterdam food | - | |
| Shop → Paris shop | Train → Amsterdam train | - | |
| - | Tour → Amsterdam tour | - | |
| Topic 2 | Apartment → Paris apartment | Trip → Amsterdam trip | Trip → Lisbon trip |
| Restaurant → Paris restaurant | Keukenhof → Keukenhof | Restaurant → Lisbon restaurant | |
| Travel → Paris travel | Cruise → Amsterdam cruise | Sintra → Sintra | |
| Hotel → Paris hotel | Tulip → Amsterdam tulip | Beach → Lisbon beach | |
| - | Schipol → Schipol airport | Cruise → Lisbon cruise | |
| - | Brussels →Brussels | Traveling → Lisbon traveling | |
| - | Bar → Amsterdam bar | Flight → Lisbon flight | |
| - | - | Airport → Lisbon airport | |
| Topic 3 | Tour → Paris tour | Museum → Amsterdam museum | Porto → Porto |
| France → France | Station → Amsterdam station | Transport → Lisbon transport | |
| Montparnasse → Montparnasse | - | Tour → Lisbon tour | |
| Disneyland → Disneyland Resort Paris | - | Benfica → Benfica | |
| - | - | Food → Lisbon food | |
| Bar → Lisbon bar | |||
| Topic 4 | Taxi → Paris taxi | - | Hotel → Lisbon hotel |
| Station → Paris station | - | Taxi → Lisbon taxi | |
| French → French | - | Bus → Lisbon bus | |
| Food → Paris food | - | Metro → Lisbon metro | |
| - | - | Transportation → Lisbon transportation | |
| - | - | Lagos → Lagos | |
| Topic 5 | Eiffel → The Eiffel Tower | - | - |
| Itinerary → Paris itinerary | - | - | |
| bus → Paris bus | - | - | |
| Museum → Paris museum | - | - | |
| Louvre → Louvre | - | - | |
| Chales → PARIS-CHARLES DE GAULLE airport | - | - | |
| Cruise → Paris cruise | - | - | |
| Flight → Paris flight | - | - |
“a → b” means that the topic words “a” identify the search topic of Google Trends “b”