Method and device for determining public opinion index of crude oil market and predicting crude oil price

The invention discloses a method and a device for determining a public opinion index of a crude oil market. The method comprises the following steps: acquiring data from a specified data source; extracting target data related to crude oil from the data by using a preset crude oil market related word list; cleaning the target data to obtain cleaned text data; constructing a crude oil market emotion dictionary, and calculating a crude oil market public opinion index corresponding to the cleaned text data by using the crude oil market emotion dictionary; wherein the crude oil market public opinion index comprises a crude oil market aggregation public opinion index and a crude oil market subentry public opinion index. 一种确定原油市场舆情指数的方法和装置，所述方法包括：从指定的数据源中获取数据；利用预设的原油市场相关词表从所述数据中提取与原油相关的目标数据；对所述目标数据进行清洗，得到清洗后的文本数据；构建原油市场情绪词典，并利用所述原油市场情绪词典计算所述清洗后的文本数据所对应的原油市场舆情指数；其中，所述原油市场舆情指数包括原油市场聚合舆情指数和原油市场分项舆情指数。