Aiming at the problem of category vocabulary noise and label noise in weakly-supervised text classification tasks， a weakly-supervised text classification model with label semantic enhancement was proposed. Firstly， the category vocabulary was denoised on the basis of the contextual semantic representation of the words in order to construct a highly accurate category vocabulary. Then， a word category prediction task based on MASK mechanism was constructed to fine-tune the pre-training model BERT （Bidirectional Encoder Representations from Transformers）， so as to learn the relationship between words and categories. Finally， a self-training module with label semantics introduced was used to make full use of all data information and reduce the impact of label noise in order to achieve word-level to sentence-level semantic conversion， thereby accurately predicting text sequence categories. Experimental results show that compared with the current state-of-the-art weakly-supervised text classification model LOTClass （Label-name-Only Text Classification）， the proposed method improves the classification accuracy by 5.29， 1.41 and 1.86 percentage points respectively on the public datasets THUCNews， AG News and IMDB.

A static priority scheduling algorithm for periodic priority exchange was proposed to resolve the low-priority task latency problem in real-time multi-task system. In this method, a fixed period of timeslice was defined, and the two independent tasks of different priorities in the multi-task system exchanged their priority levels periodically. Under the precondition that the execution time of the task with higher priority could be guaranteed, the task with lower priority would have more opportunities to perform as soon as possible to shorten its execution delay time. The proposed method can effectively solve the bad real-time performance of low-priority task and improve the whole control capability of real-time multi-task system.