Authors:
            
                    Kyosuke Ikejiri
                    
                        
                    
                    ; 
                
                    Yuichi Sei
                    
                        
                    
                    ; 
                
                    Hiroyuki Nakagawa
                    
                        
                    
                    ; 
                
                    Yasuyuki Tahara
                    
                        
                    
                     and
                
                    Akihiko Ohsuga
                    
                        
                    
                    
                
        
        
            Affiliation:
            
                    
                        
                    
                    University of Electro-Communications, Japan
                
        
        
        
        
        
             Keyword(s):
            Data Mining, Recipe, Information Recommendation.
        
        
            
                Related
                    Ontology
                    Subjects/Areas/Topics:
                
                        Applications
                    ; 
                        Artificial Intelligence
                    ; 
                        Data Mining
                    ; 
                        Databases and Information Systems Integration
                    ; 
                        Enterprise Information Systems
                    ; 
                        Knowledge Engineering and Ontology Development
                    ; 
                        Knowledge-Based Systems
                    ; 
                        Natural Language Processing
                    ; 
                        Pattern Recognition
                    ; 
                        Sensor Networks
                    ; 
                        Signal Processing
                    ; 
                        Soft Computing
                    ; 
                        Symbolic Systems
                    
            
        
        
            
                Abstract: 
                Many surprising recipes that utilize different ingredients or cooking processes from normal recipes exist on
user-generated recipe sites. The easiest way to find surprising recipes is to use the search function of the recipe
sites. However, the titles of surprising recipes do not always include a keyword, such as “surprise”, or an
indication that a recipe is unusual in any way. Therefore, we cannot find surprising recipes very easily. In this
paper, we propose a method to extract surprising or unique recipes from those user-generated recipe sites. We
propose an RF-IIF (Recipe Frequency-Inverse Ingredient Frequency) based on TF-IDF (Term Frequency-
Inverse Ingredient Frequency). First, we calculate the surprising value of the ingredients by using RF-IIF.
Then, we calculate the surprising value of each recipe by summing the surprising values of the ingredients that
appear in a recipe. Finally, we extract recipes that have high surprising values as surprising recipes of the dish
categor
                y. In the evaluation experiment, the subjects requested an evaluation about each surprising recipe. As a
result, we showed that the extracted recipes were valid recipes and also had a surprising or unusual element.
Therefore, we showed the usefulness of the proposed method.
                (More)