Three Methods for eDiscovery Document Prioritization: Comparing and Contrasting Keyword Search with Concept Based and Support Vector Based “Technology Assisted Review-Predictive Coding” Platforms

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This paper explores the three primary approaches eDiscovery professionals use to systematically prioritize documents that are being considered for review:

1) Keyword Search

2) TAR-PC based on Categorization with Conceptual Search Technology

3) TAR-PC based on an Active Machine Learning approach using a Support Vector Machine

Each of these three approaches has its own unique set of advantages and disadvantages and, when used in conjunction with careful documentation and appropriate iteration, can survive a challenge by a party’s opponent in litigation. The optimal workflow will likely require a hybrid approach applying two or perhaps all three of these approaches to reach the best results.

The implementation of Technology Assisted Review – Predictive Coding found in concept based Relativity Assisted Review and Support Vector based Equivio Relevance yields greater results than just using keywords search. These systems can return more potentially content relevant documents without the limitations of Boolean logic. However, a well-constructed keyword search can be more effective for certain conditions such as dates or proper names. Putting these technologies together with proper workflow, methodology and documentation will deliver the most effective results and enhance their defensibility.

Perhaps more important than the technology itself is how the skilled eDiscovery professional -- who understands these systems, their limitations and strengths -- combines them into the optimal workflow best suited to meet the overall requirements for the given project. In the end, the defensibility of these approaches is based on the workflow (the process) and not the technology itself.

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Topics:  Concept Based, Cost-Containment, Keyword Search, Predictive Coding, Support Vector Based

Published In: Electronic Discovery Updates, Science, Computers & Technology Updates

DISCLAIMER: Because of the generality of this update, the information provided herein may not be applicable in all situations and should not be acted upon without specific legal advice based on particular situations.

© Tom Groom, D4 LLC | Attorney Advertising

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