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NLP项目: 基于网络评论的广府美食感知情绪研究

广州作为广府文化的发源地之一,有着众多传统文化景点和岭南美食风味。本文着眼于大数据视角来探索广府美食旅游价值感知构成和感知结果,首先通过网络爬虫技术在携程与去哪儿网获取广州市粤菜餐厅游客评论数据,接着本文从数值类数据、地理坐标类数据、短文本类数据三种类型数据出发,开展对广府美食旅游价值感知分析与研究。

  • 数值类信息方面,本文通过识别热门粤菜品牌和目的地发现在旅游分享平台上,百年茶楼点都德略有“霸榜”趋势,而茶餐厅、广式早茶相比其他粤菜品类更加热门
  • 地理坐标类数据方面,本文利用ArcGIS软件基于餐厅位置和评论数量进行核密度分析, 发现越秀区、海珠区、天河区是全市广府美食分布热点区域,且美食中心的位置与公共交通枢纽中心往往较为接近,公共交通与旅游景点对美食聚集具有推动作用
  • 短文本类数据方面,本文首先利用TF-IDF算法和词向量结合的超球聚类算法对文本内容进行聚类,探索出游客对广府美食价值感知主要由文化认知价值、效用价值、服务价值、价格价值四个维度构成,同时文化认知价值对广府美食价值感知影响最大,广府美食价值感知构成与粤菜的特性息息相关等。除此之外,本文基于百度 AI 平台情感倾向分析接 口和统计分析方法,发现游客对广府美食印象主要为积极情绪,且游客对文化认知价值、 效用价值感知结果更多呈现为积极情感,但对文化认知价值、效用价值感知结果呈现为 中性甚至负面情绪的概率更大。

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