Patent ID: 11874862
Assignee: XI'AN JIAOTONG UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 0:
1. A community question-answer website answer sorting method combined with active learning, comprising the following steps: Step 1, question-answer data representation and modeling: firstly, extracting text features of question-answer data, and expressing a question title and answer content after word segmentation and stop word removal as a word vector matrix; then, calculating a community feature of the question-answer data based on community data related to question-answer, mapping a total number of approval answers to a question and a number of user answers to (0,1) through a question long tail factor and a user long tail factor, multiplying the community feature of the question-answer data by the question long tail factor and the user long tail factor to replace an original community feature of the question-answer data; and finally, inputting the community feature of the question-answer data into a CQA-CNN model to represent the question-answer data as a distributed vector; Step 2, constructing a training set by combining active learning and predicting a sorting relationship of candidate question-answer pairs: firstly, performing statistical analysis on a question-answer data set, formalizing a statistical result into rules, and automatically constructing a preliminary labeled training set based on the rules; then, constructing an answer sorting model based on the Community Question Answering-Convolutional Neural Network (CQA-CNN) model, and predicting a sorting relationship between any two candidate answers; finally, constructing an unlabeled training set, and selecting an additional sample from the unlabeled training set for manual labeling by combining active learning; merging labeled results into the preliminary labeled training set to retrain the answer sorting model, and using the answer sorting model after retraining for community question-answer website answer sorting.