SectionPage 历史
<img align=right border=0 src="/dasher/images/tclS.gif" alt="early dasher" width="96" height="68">
<h2>Dasher的历史</h2>
<h3>开发者</h3>
<ul>
<li>
 Dasher是由 <b><a href=/mackay/>David MacKay</a></b>领导下的  <a href=/is/>Inference Group</a>开发, ,
  David MacKay是物理系的一位高级讲师,同时也是信息科技公司
  <A href=http://www.transversal.com/>Transversal</a>的联合创始人.
  David在1997年开发了Dasher的第一个原型.
</li>
<li>
 <b><a href=/djw30/>David Ward</a></b>从1998年到2002年开发了Dasher的研究版本( research version)
 ;作为他的博士学位研究,
 David将Dasher转化为一个实际工作的软件系统,
 加入了很多改进, 
 并作了许多试验来验证它的实际效率.
 David现在供职于Spiral Software,  Cambridge.
</li><li>
 <b><a href=http://www.cl.cam.ac.uk/~afb21/>Alan Blackwell</a></b>, 计算机实验室讲师,
 帮助我们设计各种试验.

</li><li>
 <b><a href=/pjc51/>Phil Cowans</a></b> and <b>Tim Hospedales</b>
 也为项目做出贡献,尤其是在眼球追踪系统上面.

</li><li>
 2002年夏天, <b><a href=/~iam23/>Iain Murray</a></b>正在准备发布Open Source software package. Iain将要在computational neuroscience at UCL开始他的PhD攻读 .

</li><li>
 从2002年夏天,我们希望Dasher项目能吸引来自自由软件团体的专家加入,
 使功能得到进一步增强并适应更多的电脑平台.
</li><li>

 我们希望保证这个Open Source project由一位项目经理管理,确保项目的成功.
</li>
</ul>
  
<img align=right border=0 src="/dasher/images/ipaq4.jpg" alt="Dasher on ipaq" width="96" height="95">
<h2>Dasher版本</h2>
  Dasher主要的实际版本如下:

<dl>
 <dt> <a href=http://www.inference.phy.cam.ac.uk/djw30/dasher/download.html><b>Version 1.*.* - C
  and tcl</b></a> -  linux和windows 平台.
  </dt>
 <dd> Uses ppm as the language model. Driven by mouse.
 <br> written by David Ward.
 <br> Version 1.*.* supports several European languages and Japanese (Hiragana).
	 English version can support
          capital letters and lower case.
	  This version's language model can be instructed  both by
	  loading an example input file and by loading a
	   dictionary of valid spellings.
</dd>
 <dt> <b><a href=http://www.inference.phy.cam.ac.uk/djw30/dasher/download.html>C</a> - 掌上电脑</b>
 </dt>
  <dd> Driven by stylus on touch-screen.
 <br>  written by David Ward.
 <br> This version includes    capital letters, numbers, and a
      number of punctuation characters.  Only English is supported.
</dd>
<dt>  <a href=http://www.inference.phy.cam.ac.uk/djw30/dasher/download.html><b>Version 2.*.* - C
  </b></a> - for linux and windows desktops
</dt>
     <dd> 
	   Version 2.*.* supports English, upper and lower case,
	   punctuation and  numbers.
	   It will be released as <b>Open Source</b>, as <b>version 3</b>, in late Summer 2002.
</dd>
 <dt> <b>Eye-Dasher</b>
</dt>
<img align=right border=0 src="/dasher/images/hires/mini96028.jpg" alt="dasher + Eye-tracker" width="96" height="72">
 <dd> Driven by mouse that is controlled by eyetracker.
 <br> written by David Ward.
</dd>
 <dt> <b>Daishoya (JDasher)</b></dt>
 <dd> Japanese-language version of Dasher (Hiragana)
  - included in the
   <a href=http://www.inference.phy.cam.ac.uk/djw30/dasher/download.html><b>C
  and tcl</b></a> version
</dd>
<dt> <a href=http://www.inference.phy.cam.ac.uk/mackay/tcl/dasher.tcl><b>tcl</b></a> -  最初的原型
</dt>
<dd> Demonstrates the relationship to arithmetic coding;
 includes a crude bigram language model. 
 <br> written by David MacKay.
 <br> Runs on all platforms that support tcl (linux, windows, some browsers).

</dd>
</dl>

<p>
 更详细的Dasher历史可以从 
 <a href=/mackay/>David MacKay</a>处请求获得.
</p>
<p>
 <a href='/dasher/websource/chinese/others'>相同领域的其他小组的链接</a>.
</p>