Abstract: Systems and methods for extraction of network structures from tabular data structures having numeric features are described. One embodiment includes a method of extracting a network from a tabular data structure having numerical features, comprising obtaining a tabular data structure includes several records, where each record includes several numerical values each associated with a respective numerical feature, calculating pairwise similarities between records based on the several numerical values using a distance function, generating an edge list by sorting the pairwise similarities, extracting a subset of edges from the edge list based on a connectivity threshold, constructing a network structure by generating nodes from records and connecting said nodes using edges from the subset of edges, and visualizing the network structure using a display.