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'Predictive coding' is the buzzword of the year in legal, but we won't tell anyone if you don't know how it works, or aren't convinced it's a useful tool. Brush up on what it is, and see why predictive coding beats out manual review and searching.
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Predictive Coding: What Is It?
and Why Use It?
October 2014
Agenda: All About Predictive Coding
1. Other Names2. What Is It?3. How Does It Work?4. Why Not Just Review Documents Manually?
○ Because Predictive Coding Saves Time5. Why Not Just Search for Documents?
○ Because Predictive Coding Does More○ Because Searching Misses a Lot
Been Hearing ‘Predictive Coding’ A Lot?
Can be called:● Predictive coding● Predictive rating / ranking● Technology-assisted review (TAR)● Machine learning
Becoming a necessary litigation technology:● Due to the growing size of the average
legal case
Why Predictive Coding?
But what is predictive coding, and why should you care?
What Is Predictive Coding?
● A legal technology● Often provided by ediscovery vendors● Software that aims make accurate predictions
about the importance of legal documents, based on human input
● Has goal of making a ‘first pass’ on documents, to make reviewers’ time more effective and efficient
How Does It Work?
Process:1. Document reviewer(s) rate(s) a small
set of documents as “important” or “not” to a legal case
2. Software analyzes the documents deemed “important” - along a number of dimensions - to find other documents also likely to be important
Why Not Just Review Documents Manually?
Reviewing all case documents is often not realistic.
● Producing party: ○ Often have document collections so large
that it’s impractical to look at every document individually in responsiveness review
● Party receiving large productions: ○ Faced with similar problem○ Need to prioritize documents for review, even
if planning on looking at each one eventually
Because Predictive Coding Saves Time!● The software can examine each document, to identify the
ones most likely to be responsive to your case ● That information can then be used to prioritize and speed
up manual review — and sometimes even eliminate the need for it
Why Not Just Search for Documents?
Reviewers can search for documents, so why do you need predictive coding?
Because Predictive Coding Does More!
Searching:● Finds documents
related by small portions of content
Predictive Coding:● Finds similar documents
holistically, based on full content and context
● Learns patterns and features that distinguish important from irrelevant documents
Replacing that kind of nuanced seeking with search terms would be almost impossible.
Because Searching Misses A Lot!
Imagine you’re at the library, looking for information on impressionist art:● If you search the library catalog for
“impressionism,” you’ll find books with “impressionism” in the name, or listed as the book’s subject
● What you likely won’t find are broader surveys of art history — of which impressionism is a part — or books about specific artists like Manet
Because Searching Misses A Lot!● Searching legal documents is just like that: it only turns
up a small portion of what would be relevant
● Using predictive coding is like consulting an experienced librarian: ○ Her encyclopedic knowledge saves you from having
to read every book to find just the one you want○ Her recommendations consider many parts of a
book (plot, setting, tone, genre, era, and more)
Because Predictive Coding Is Thorough!
● Predictive coding doesn’t just look at a document’s most unique words or its recipients
● It looks at all of the document text and metadata
This is a powerful approach that makes it far superior to either search or manual review.
● Questions about Predictive Coding? Read more here: http://blog.everlaw.com/2014/10/03/predictive-coding-what-is-it-and-why-use-it
● Want to see Predictive Coding in action? Schedule a walk-through: http://www.everlaw.com/contact_form.html
Learn More!
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