基于用户的协同过滤推荐算法实现食品推荐功能，基于不同用户评分矩阵实现食品的分类。(Based on user collaborative filtering recommendation algorithm, food recommendation function is realized, and food classification is achieved based on different user rating matrix.)

基于SPEA2和MOGA算法实现的多目标优化，主要针对营养平衡目标进行规划。(The multi-objective optimization based on SPEA2 and MOGA algorithm is mainly aimed at planning the goal of nutrition balance.)