Information security system for fraud detection

A method, comprising:

• receiving an invoice comprising a plurality of invoice positions, each of the invoice positions comprising a position text;
• converting each word and number of the position text of each invoice position to a word embedding vector;
• summing the word embedding vectors for each invoice position to generate a word vector for each invoice position;
• concatenating the word vector and a number vector of each invoice position to generate a position vector for each invoice position;
• generating a first combined position vector for a first invoice position;
• generating a second combined position vector for a second invoice position;
• generating an invoice vector by summing the first combined position vector and the second combined position vector, wherein the invoice vector is a numeric representation of the invoice;
• comparing the invoice vector to a fraud detection parameter;
• and
• determining whether the invoice is indicative of fraud based on the comparison.

One or more computer-readable non-transitory storage media embodying one or more units of software that is operable when executed to:

• receive an invoice comprising a plurality of invoice positions, each of the invoice positions comprising a position text;
• convert each word and number of the position text of each invoice position to a word embedding vector;
• sum the word embedding vectors for each invoice position to generate a word vector for each invoice position;
• concatenate the word vector and a number vector of each invoice position to generate a position vector for each invoice position;
• generate a first combined position vector for a first invoice position;
• generate a second combined position vector for a second invoice position;
• generate an invoice vector by summing the first combined position vector and the second combined position vector, wherein the invoice vector is a numeric representation of the invoice;
• compare the invoice vector to a fraud detection parameter;
• and
• determine whether the invoice is indicative of fraud based on the comparison.