11. The apparatus according to claim 10 , wherein the generation module comprises: a decomposition unit, configured to input the label sequence of each network service in a latent Dirichlet allocation (LDA) model, to obtain a label-topic probability matrix and a topic-network service probability matrix, the label-topic probability matrix comprising at least one topic, a label corresponding to each topic, and a probability that each label belongs to a corresponding topic; and the topic-network service probability matrix comprising at least one topic, a network service corresponding to each topic, and a probability that each network service belongs to a corresponding topic; a first generation unit, configured to generate the label-topic correspondence according to the label-topic probability matrix obtained by the decomposition unit; and a second generation unit, further configured to generate the topic-network service correspondence according to the topic-network service probability matrix obtained by the decomposition unit.
11. The apparatus according to claim 10 , wherein the generation module comprises: a decomposition unit, configured to input the label sequence of each network service in a latent Dirichlet allocation (LDA) model, to obtain a label-topic probability matrix and a topic-network service probability matrix, the label-topic probability matrix comprising at least one topic, a label corresponding to each topic, and a probability that each label belongs to a corresponding topic; and the topic-network service probability matrix comprising at least one topic, a network service corresponding to each topic, and a probability that each network service belongs to a corresponding topic; a first generation unit, configured to generate the label-topic correspondence according to the label-topic probability matrix obtained by the decomposition unit; and a second generation unit, further configured to generate the topic-network service correspondence according to the topic-network service probability matrix obtained by the decomposition unit. 12. The apparatus according to claim 11 , wherein, the first generation unit is configured to perform, if one label belongs to two or more topics in the label-topic probability matrix, arrangement according to a descending order of probability that the label belongs to each topic, and keep first S topics as topics to which the label belongs, S being a positive integer; and generate the label-topic correspondence according to the label and the first S topics; or, the first generation unit is configured to perform, if one label belongs to two or more topics in the label-topic probability matrix, arrangement according to a descending order of probability that the label belongs to each topic, and keep topics whose probabilities are greater than a preset threshold as topics to which the label belongs; and generate the label-topic correspondence according to the label and the first S topics.