“…Looking at query suggestion methods that work effectively outside the general web domain is now becoming more popular (e.g., Al Hasan, Parikh, Singh, & Sundaresan, ). Our earlier studies with individual methods for extracting query suggestions have shown promising results (e.g., Albakour, Kruschwitz ; Dignum et al., ; Kruschwitz et al., ). In this study, we investigate a more comprehensive list of different methods in a more systematic way.…”