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arXiv 2101.01775cs.CL
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基于大规模食品知识图谱的受限问答个性化食品推荐

Personalized Food Recommendation as Constrained Question Answering over a Large-scale Food Knowledge Graph

Rensselaer Polytechnic Institute(伦斯勒理工学院);IBM Research(IBM研究院)

Yu Chen, Ananya Subburathinam, Ching-Hua Chen, Mohammed J. Zaki

摘要:

美食推荐已经成为帮助引导用户养成健康饮食习惯的重要手段。以前的食物推荐工作i)没有考虑用户的明确需求,ii)忽略了关键的健康因素(例如,过敏和营养需求),或者iii)不利用丰富的食物知识来推荐健康食谱。为了解决这些局限性,我们提出了一种新的问题配方食品推荐,建模这个任务的约束问答在一个大规模的食品知识库/图(KBQA)。除了来自用户查询的要求之外,来自用户的饮食偏好和健康指南的个性化要求作为对QA系统的附加约束以统一的方式处理。为了验证这一想法,我们创建了一个QA风格的数据集的基础上,大规模的食品知识图谱和健康指南的个性化食品推荐。此外,我们提出了一个基于KBQA的个性化食品推荐框架,该框架配备了新的技术来处理查询中的否定和数值比较。在基准测试上的实验结果表明,我们的方法显著优于非个性化的同行(在各种评估指标上平均有59.7%的绝对改善),并且能够推荐更相关和更健康的食谱。

英文摘要:

Food recommendation has become an important means to help guide users to adopt healthy dietary habits. Previous works on food recommendation either i) fail to consider users' explicit requirements, ii) ignore crucial health factors (e.g., allergies and nutrition needs), or iii) do not utilize the rich food knowledge for recommending healthy recipes. To address these limitations, we propose a novel problem formulation for food recommendation, modeling this task as constrained question answering over a large-scale food knowledge base/graph (KBQA). Besides the requirements from the user query, personalized requirements from the user's dietary preferences and health guidelines are handled in a unified way as additional constraints to the QA system. To validate this idea, we create a QA style dataset for personalized food recommendation based on a large-scale food knowledge graph and health guidelines. Furthermore, we propose a KBQA-based personalized food recommendation framework which is equipped with novel techniques for handling negations and numerical comparisons in the queries. Experimental results on the benchmark show that our approach significantly outperforms non-personalized counterparts (average 59.7% absolute improvement across various evaluation metrics), and is able to recommend more relevant and healthier recipes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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