Abstract: Techniques are described for performing automated operations related to determining and using user-specific dwelling search criteria to provide improved search results, such as in at least some situations to automatically use one or more trained large language models to analyze multiple modalities of data for a group of dwellings associated with a user to predict and confirm user-specific search criteria preferences corresponding to shared attributes of the dwellings before further using the user-specific search criteria preferences to provide improved dwelling search results. The described techniques may include using a trained large language model to analyze data of multiple modalities for a group of dwellings associated with a particular user, to identify shared attributes of the dwellings and determine one or more associated predicted preferences of the user, and include interacting with the user to obtain confirmation or denial of one or more of the predicted user preferences.