2001 HUB5 Mandarin Evaluation


Item Name: 2001 HUB5 Mandarin Evaluation
Authors: David Graff, Alvin Martin, David Miller, Mark Przybocki, and Kevin Walker
LDC Catalog No.: LDC2002S12
ISBN: 1-58563-228-7
Release Date: Apr 30, 2002
Data Type: speech
Sample Rate: 8000 Hz
Sampling Format: 2-channel ulaw
Data Source(s): telephone conversations
Project(s): EARS, GALE, Hub5-LVCSR
Application(s): speech recognition
Language(s): Mandarin Chinese
Language ID(s): cmn
Distribution: 1 CD
Member fee: $0 for 2002 members
Non-member Fee: US $1500.00
Reduced-License Fee: US $750.00
Extra-Copy Fee: US $150.00
Non-member License: yes
Online documentation: yes
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: David Graff, et al.
2002
2001 HUB5 Mandarin Evaluation
Linguistic Data Consortium, Philadelphia

Introduction

The 2001 HUB5 Mandarin Evaluation, Linguistic Data Consortium (LDC) catalog number LDC2002S12 and ISBN 1-58563-228-7 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 evaluation was held from February 21 - March 12, 2001. The systems were to produce character-level transcripts and character-level confidence scores for the complete set of evaluation test material.

Additional information is available at the 2001 NIST Evaluation Plan for Recognition of Conversational Speech Over the Telephone website.

Data

The test data comes from unexposed Mandarin CALLHOME Conversations, stored in sphere format. There are 20 sphere files encoded in two-channel interleaved mulaw for a total of 441,990,656 bytes (421 Mbytes) or eight hours of sphere data. These conversations were transcribed and time-marked by speaker turn, by the LDC.

An included documentation table contains information on the speech segments to be processed as follows: ...

Updates

There are no updates at this time.

Content Copyright

Portions 1997-2002 Trustees of the University of Pennsylvania