Event detection and classification method, apparatus, and device

Abstract

Implementations of the present specification disclose an event risk detection method, apparatus, and device. The method includes: obtaining event description information provided by a plurality of different event initiators when the plurality of different event initiators each initiate a target event to a same event target party in a same event service; then converting, into a token sequence, a plurality of character sequences of the event description information provided by the plurality of different event initiators, the token sequence including a plurality of sub-token sequences each corresponding to a character sequence of event description information provided by an event initiator; setting a set of a first number of token positions for each sub-token sequence of the plurality of sub-token sequences, and sequentially placing characters in each sub-token sequence of the plurality of sub-token sequences at a corresponding set of the first number of token positions based on an order of each sub-token sequence; and determining, based on a corresponding sub-token sequence placed at each set of the first number of token positions, token information of an event initiator corresponding to each set of the first number of token positions, and a text classification model, whether the target event is at risk.