Nuix has announced the release of version 4.2 of its eDiscovery software including an open and defensible predictive coding engine, as well as manual and automated, keyword-based redaction of sensitive information.

“This release builds on our core strength of indexing, searching and managing huge volumes of unstructured data faster and more reliably than any other available technology,” said Stephen Stewart, Chief Technology Officer at Nuix.

Nuix says its predictive coding technology uses open, proven textual analysis techniques that are easy to understand, use and explain.

“The legal industry has been reluctant to accept ‘black box’ predictive coding technologies it couldn’t understand, much less defend in court,” said Stewart. “Nuix 4.2’s predictive coding provides a powerful way for eDiscovery professionals to quickly sort the relevant from the irrelevant to minimize onerous manual reviews.

“Our approach relies on open technologies that have been used for more than a decade in applications such as spam filtering and data mining, combined with Nuix’s patented unstructured data indexing engine and our searching, tagging and clustering features. The best part for our customers is that it is free to anybody who has a four core Nuix eDiscovery license.”

Nuix 4.2 includes the ability to create redaction mark-ups for each production set, reducing the risk of releasing privileged or sensitive information. Legal teams can create mark-ups manually or automatically redact text based on a word list.

The upgrade adds to the list of hundreds of file formats Nuix can read, with support for Cellebrite and Micro Systemation XRY mobile device images; Autonomy IDOL IDX files; and more metadata from Mac OS and Linux file systems. It also deepens Nuix’s capacity for investigation and forensic analysis of data by recovering deleted files, processing slack space, indexing and viewing the Microsoft Windows registry and examining the binary structure of files in a hex viewer.