At&t Intellectual Property I, L.p.

Nuance Communications, Inc.

Raytheon Bbn Technologies Corp.

John Grothendieck

Jeremy Huntley Greet Wright

Allen Louis Gorin

Jeremy Huntley Wright

Alicia Abella

Guy Jacobson

Wen-Ling Hsu

Ilana Heintz

Allcia Abella

Systems and methods for efficiently detecting and coordinating step changes, trends, cycles, and bursts affecting lexical items within data streams are provided. Data streams can be sourced from documents that can optionally be labeled with metadata. Changes can be grouped across lexical and/or metavalue vocabularies to summarize the changes that are synchronous in time. The methods described herein can be applied either retrospectively to a corpus of data or in a streaming mode.

Systems and methods for detecting and coordinating changes in lexical items

Aspects are generally directed to network security systems and methods of monitoring network activity. In one example, a network security system includes and interface to receive a Hypertext Transfer Protocol (HTTP) network log that includes a matrix of data, a feature extraction component configured to extract a connectivity matrix from the HTTP network log based on a recurring pattern within the matrix of data, and a training module configured to provide deep learning architecture training data based on the connectivity matrix. The system may include a deep learning architecture configured to receive and propagate the training data through one or more layers thereof to train the one or more layers, and being configured to generate a general data representation of the HTTP network log. The system may include a behavior analytics component to detect a discordant network activity within the HTTP network log based on the general data representation.

Network security system and methods for encoding network connectivity for activity classification

An apparatus, a method, and a machine-readable medium are provided for characterizing differences between two language models. A group of utterances from each of a group of time domains are examined. One of a significant word change or a significant word class change within the plurality of utterances is determined. A first cluster of utterances including a word or a word class corresponding to the one of the significant word change or the significant word class change is generated from the utterances. A second cluster of utterances not including the word or the word class corresponding to the one of the significant word change or the significant word class change is generated from the utterances.

Apparatus and method for analysis of language model changes

A method, an apparatus, and a computer-readable medium are provided. Whether at least one significant change occurs in a use of at least one word of a group of text documents of a text corpus is determined. A display based, at least in part, on at least one change point corresponding to the at least one significant change is presented when the at least one significant change is determined to have occurred.

Method and apparatus for automatic detection and visualization of changes within large streams of text

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Highland Park, NJ, United States of America

John Grothendieck