Introduction

The 1997 HUB4 English Evaluation, Linguistic Data Consortium (LDC) catalog number LDC2002S11 and ISBN 1-58563-227-9, is part of an ongoing series of periodic evaluations conducted by NIST. These evaluations provide an important contribution to the direction of research efforts and the calibration of technical capabilities. They are intended to be of interest to all researchers working on the general problem of conversational speech recognition. To this end, the evaluation was designed to be simple, to focus on core speech technology issues, to be fully supported, and to be accessible.

The purpose of this evaluation is to foster research on the problem of accurately transcribing broadcast news speech and to measure objectively the state of the art.

Additional documentation is available at the 1997 NIST Evaluation Plan for Broadcast News webpage.

Data

This year the entire test set is contained in a single waveform file. The SPHERE-formatted waveforem file h4e_97.sph is located in the h4e_evl directory of this CD-ROM. The waveform file contains 334 Mbytes of sphere data, which represents approximately three hours of concatenated radio and television broadcast news stories. The transcript file contains a rough number of 30,600 total tokens and 4,800 unique tokens.

Updates

There are no updates at this time.

Content Copyright

Portions (c) 1997 Trustees of the University of Pennsylvania, (c) 1996 C-SPAN, (c) 1996 American Broadcasting Company, (c) 1996 USC Radio of the University of Southern California, (c) 1996 National Public Radio, Inc., (c) 1996 Public Radio International, (c) 1996 Cable News Network, Inc. All Rights Reserved.

Additional Copyright Information and Disclaimers

"NPR Programs or excerpts of Programs contained herein are from 1996 broadcasts of "All Things Considered(R)" and "Morning Edition(R)" and are copyrighted works owned by National Public Radio, Inc. The Programs are used with permission of National Public Radio, Inc. Any unauthorized duplication or other use is strictly prohibited."

"RESTRICTED RIGHTS LEGEND: INFORMATION FROM THE USC PROGRAM 'MARKETPLACE' CONTAINED HEREIN IS THE PROPERTY OF USC RADIO AND THE UNIVERSITY OF SOUTHERN CALIFORNIA AND IS PROTECTED BY COPYRIGHT. USE, DUPLICATION OR DISCLOSURE BY YOU IS SUBJECT TO THE RESTRICTIONS SET FORTH IN THE USER AGREEMENT AND ATTACHED TO THE COMPUTER READABLE MEDIA PROVIDED TO YOU BY THE LINGUISTIC DATA CONSORTIUM OF THE UNIVERSITY OF PENNSYLVANIA. COPYRIGHT 1996 UNIVERSITY OF SOUTHERN CALIFORNIA, AND IS DSITRIBUTED TO PUBLIC RADIO STATIONS NATIONWIDE BY PRI-PUBLIC RADIO INTERNATIONAL. MARKETPLACE IS MADE POSSIBLE BY GE, THE CORPORATION FOR PUBLIC RADIO, AND PUBLIC RADIO STATIONS NATIONWIDE."