2001 HUB5 Mandarin Evaluation

<h3>Introduction</h3><br>
<p>2001 HUB5 Mandarin Evaluation 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.</p><br>
<p>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.</p><br>
<p>Additional information about the evaluation is available from this NIST <a href="https://www.nist.gov/itl/iad/mig/speaker-recognition">website</a>.</p><br>
<h3>Data</h3><br>
<p>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.</p><br>
<p>An included documentation table contains information on the speech segments to be processed as follows: ...</p><br>
<h3>Updates</h3><br>
<p>There are no updates at this time.</p></br>
Portions © 1997-2002 Trustees of the University of Pennsylvania

## 引言
2001年HUB5普通话评测是美国国家标准与技术研究院（National Institute of Standards and Technology, NIST）开展的周期性系列评测项目的组成部分。此类评测为研究方向的确定与技术能力的校准提供了重要支撑，面向所有致力于对话语音识别通用问题研究的科研人员，具有重要参考价值。本次评测旨在聚焦核心语音技术议题，设计简便易用、支持完善且易于获取，以期覆盖广泛的研究群体。
本次评测于2001年2月21日至3月12日举办，要求参赛系统针对全部评测测试素材生成字符级转录结果与字符级置信度评分。
更多评测相关信息可访问NIST官方网站：https://www.nist.gov/itl/iad/mig/speaker-recognition。

## 数据
测试数据源自未公开的普通话CALLHOME对话语料，存储格式为sphere。本次评测共包含20个采用双声道交织mulaw编码的sphere文件，总数据量达441,990,656字节（即421兆字节），对应8小时的语音数据。这些对话语料已由语言数据联盟（Linguistic Data Consortium, LDC）完成转录，并按说话人轮次标注了时间戳。
附带的文档表格包含待处理语音片段的相关信息，具体如下：……

## 更新
目前暂无更新内容。

部分内容 © 1997-2002 宾夕法尼亚大学托管委员会

搜集汇总

背景与挑战

背景概述

该数据集是NIST在2001年进行的普通话对话语音识别评估数据，包含约8小时的未公开普通话电话对话音频，用于测试字符级转录和置信度评分系统，旨在推动语音技术研究。