a processor;

a memory comprising computer-readable instructions executable by the processor;

a datastore comprising a corpus of chemical reaction procedures;

an interface configured to receive the chemical reaction sketch from a user computing device;

a reaction encoder configured to create a reaction embedding of the chemical reaction sketch, the reaction encoder comprising a reaction transformer network, a reaction pooling layer, a reaction normalization layer, and a reaction neural network;

a procedure encoder configured to create procedure embeddings of the chemical reaction procedures in the corpus of chemical reaction procedures, the procedure encoder comprising a procedure transformer network, a procedure pooling layer, a procedure normalization layer, and a procedure neural network;

a similarity-assessing mechanism configured to determine a similarity between the reaction embedding and the procedure embeddings in a shared embedding space; and

an output mechanism configured to provide to the interface a predetermined number of candidate chemical reaction procedures from the corpus of chemical reaction procedures, the candidate chemical reaction procedures corresponding to procedure embeddings identified by the similarity-assessing mechanism as having the highest similarity to the reaction embedding.