Personalized, Health-Aware Recipe Recommendation: An Ensemble Topic Modeling Based Approach

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Title: Personalized, Health-Aware Recipe Recommendation: An Ensemble Topic Modeling Based Approach
Authors: Khan, MansuraRushe, EllenSmyth, BarryCoyle, David
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Date: 20-Sep-2019
Online since: 2020-05-06T09:44:58Z
Abstract: Food choices are personal and complex and have a significant impact on our long-term health and quality of life. By helping users to make informed and satisfying decisions, Recommender Systems (RS) have the potential to support users in making healthier food choices. Intelligent users-modeling is a key challenge in achieving this potential. This paper investigates Ensemble Topic Modelling (EnsTM) based Feature Identification techniques for efficient user-modeling and recipe recommendation. It builds on findings in EnsTM to propose a reduced data representation format and a smart user-modeling strategy that makes capturing user-preference fast, efficient and interactive. This approach enables personalization, even in a cold-start scenario. We compared three EnsTM based variations through a user study with 48 participants, using a large-scale, real-world corpus of 230,876 recipes, and compare against a conventional Content Based (CB) approach. EnsTM based recommenders performed significantly better than the CB approach. Besides acknowledging multi-domain contents such as taste, demographics and cost, our proposed approach also considers user’s nutritional preference and assists them finding recipes under diverse nutritional categories. Furthermore, it provides excellent coverage and enables implicit understanding of user’s food practices. Subsequent analysis also exposed correlation between certain features and healthier lifestyle.
Funding Details: Science Foundation Ireland
metadata.dc.description.othersponsorship: Insight Research Centre
Type of material: Conference Publication
Copyright (published version): 2019 the Authors
Keywords: Information systemsRecommender systems
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Language: en
Status of Item: Peer reviewed
Conference Details: The 4th International Workshop on Health Recommender Systems (HealthRecSys 2019), Copenhagen, Denmark, 20 September 2019
Appears in Collections:Insight Research Collection

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