Abstract: Embodiments detect duplicate invoices, each invoice including a plurality of fields. Embodiments generate synthetic training data using a plurality of training invoices and generating one or more modified fields for each of the plurality of training invoices. Embodiments train a machine learning model using the synthetic training data and generate a plurality of candidate invoice pairs. Embodiments input the plurality of candidate invoice pairs to the trained machine learning model and generate, by the trained machine learning model, a prediction of whether each of the candidate invoices pairs is a duplicate invoice pair.

Abstract: Embodiments perform the anomaly detection of expense reports in response to receiving an expense report as input data, the expense report including a plurality of expenses. Embodiments create a plurality of groups of expenses, each group corresponding to a different combination of a category of the expense, a location of the expense and a season of the expense. Embodiments generate and train an unsupervised machine learning model corresponding to each group, and assign each of the expenses of the expense report into a corresponding group and input the expenses into the unsupervised machine learning model corresponding to the group. Embodiments then generate an anomaly prediction at each unsupervised machine learning model for each expense of the expense report.

Abstract: Embodiments classify a product to a product category. Embodiments receive a textual description of the product and create an index of product categories. Embodiments use a plurality of classifiers to classify the textual description to one of the product categories, the classifiers including an index based classifier, an encyclopedia based classifier, a Bayes' rule based classifier, and an embeddings classifier.