The invention is applicable to the technical field of
information processing, and provides a design consultation
service system based on case similarity comparison, comprising: a case
database module for storing multi-dimensional design case data including text description, images, 3D models,
user feedback data and
metadata tags; according to the method, high-precision matching of multi-
modal cases is achieved through the similarity comparison module, the accuracy and efficiency of design consultation services are remarkably improved, an embedding extraction unit of the similarity comparison module adopts a multi-
modal embedding model, texts, images and 3D models are uniformly converted into vector representation, cross-
modal matching is supported, and the accuracy and efficiency of design consultation services are improved. Limitations of traditional keyword retrieval are overcome, a similarity calculation unit applies a weighted
cosine similarity algorithm, different modal information is fused, it is ensured that a matching result meets design requirements, and a dynamic
weight adjustment sub-module automatically optimizes weight parameters according to historical preferences of a user and provides a personalized matching strategy. And the cross-domain transfer learning
subunit realizes transfer of knowledge in the field of
building design to the field of
product design through
fine tuning of a pre-training model.