Armies of Expensive Lawyers, Replaced by Cheaper Software

Cheaper Software

“People get bored, people get headaches. Computers don’t,” said Bill Herr, a lawyer who used to work for a chemical company.

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“The economic impact will be huge,” said Tom Mitchell, chairman of the machine learning department at Carnegie Mellon University in Pittsburgh. “We’re at the beginning of a 10-year period where we’re going to transition from computers that can’t understand language to a point where computers can understand quite a bit about language.”

Nowhere are these advances clearer than in the legal world.

E-discovery technologies generally fall into two broad categories that can be described as “linguistic” and “sociological.”

The most basic linguistic approach uses specific search words to find and sort relevant documents. More advanced programs filter documents through a large web of word and phrase definitions. A user who types “dog” will also find documents that mention “man’s best friend” and even the notion of a “walk.”

The sociological approach adds an inferential layer of analysis, mimicking the deductive powers of a human Sherlock Holmes. Engineers and linguists at Cataphora, an information-sifting company based in Silicon Valley, have their software mine documents for the activities and interactions of people — who did what when, and who talks to whom. The software seeks to visualize chains of events. It identifies discussions that might have taken place across e-mail, instant messages and telephone calls.

Then the computer pounces, so to speak, capturing “digital anomalies” that white-collar criminals often create in trying to hide their activities.

For example, it finds “call me” moments — those incidents when an employee decides to hide a particular action by having a private conversation. This usually involves switching media, perhaps from an e-mail conversation to instant messaging, telephone or even a face-to-face encounter.

“It doesn’t use keywords at all,” said Elizabeth Charnock, Cataphora’s founder. “But it’s a means of showing who leaked information, who’s influential in the organization or when a sensitive document like an S.E.C. filing is being edited an unusual number of times, or an unusual number of ways, by an unusual type or number of people.”

The Cataphora software can also recognize the sentiment in an e-mail message — whether a person is positive or negative, or what the company calls “loud talking” — unusual emphasis that might give hints that a document is about a stressful situation. The software can also detect subtle changes in the style of an e-mail communication.

A shift in an author’s e-mail style, from breezy to unusually formal, can raise a red flag about illegal activity.

“You tend to split a lot fewer infinitives when you think the F.B.I. might be reading your mail,” said Steve Roberts, Cataphora’s chief technology officer.

Another e-discovery company in Silicon Valley, Clearwell, has developed software that analyzes documents to find concepts rather than specific keywords, shortening the time required to locate relevant material in litigation.

Last year, Clearwell software was used by the law firm DLA Piper to search through a half-million documents under a court-imposed deadline of one week. Clearwell’s software analyzed and sorted 570,000 documents (each document can be many pages) in two days. The law firm used just one more day to identify 3,070 documents that were relevant to the court-ordered discovery motion.

Clearwell’s software uses language analysis and a visual way of representing general concepts found in documents to make it possible for a single lawyer to do work that might have once required hundreds.

“The catch here is information overload,” said Aaref A. Hilaly, Clearwell’s chief executive. “How do you zoom in to just the specific set of documents or facts that are relevant to the specific question? It’s not about search; it’s about sifting, and that’s what e-discovery software enables.”

For Neil Fraser, a lawyer at Milberg, a law firm based in New York, the Cataphora software provides a way to better understand the internal workings of corporations he sues, particularly when the real decision makers may be hidden from view.

He says the software allows him to find the ex-Pfc. Wintergreens in an organization — a reference to a lowly character in the novel “Catch-22” who wielded great power because he distributed mail to generals and was able to withhold it or dispatch it as he saw fit.

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