Fedora 18 release party
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文档介绍了 Fontconfig 和 libpinyin 的基本信息及其功能。Fontconfig 用于字体选择和渲染，libpinyin 是基于 n-gram 的拼音输入法，且在 Fedora 中持续改进。文档还提供了相关链接和示例，帮助用户理解和使用这些工具。
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Fedora 18 release party
- 1. fontconfig & libpinyin 介绍 Presented by Peng Wu Red Hat License statement goes here. See https://fedoraproject.org/wiki/Licensing#Content_Licenses for acceptable licenses.
- 2. 今日主题 1. fontconfig 介绍 2. libpinyin 介绍 3. libpinyin 解密
- 5. Fontconfig 目标 根据查询条件选择最好的字体 fc-match 根据查询条件列出匹配的字体 fc-list
- 6. Fedora 上的 fontconfig 配置 为每一种语言提供一个默认字体 参考 http://tagoh.fedorapeople.org/fonts/f18- defaultfonts.html 绝大部分字体都使用统一的 fontconfig 配置格式 http://fedoraproject.org/wiki/Packaging:FontsPolicy 示例 /usr/share/fontconfig/templates/
- 8. libpinyin 介绍
- 9. libpinyin 项目信息 主页 : https://github.com/libpinyin 包含 libpinyin 和 ibus-libpinyin 两个子项目 下载镜像 : http://sourceforge.net/projects/libpinyin/ 介绍 : Library to deal with pinyin
- 10. libpinyin 介绍 libpinyin 基于 n-gram 自然语言处理模型的输入法后端 已经进入 Fedora 18 中 仍然在改进当中? ;) libpinyin 的前端 ibus-libpinyin fcitx-libpinyin
- 11. 假想的拼音输入法 记录所有的拼音 / 句子到 2TB 关系数据库中 . 优点 接近 100% 的正确率 缺点 没有那么大的硬盘 也没有那么强悍的 CPU 使用自然语言处理的技术来达到正确率和资源使 用量的折中
- 12. libpinyin 解密
- 13. 开源输入法数学模型 Uni-gram: scim-pinyin N-gram: libpinyin
- 14. scim-pinyin 模型示例 例子 : zhong'guo'ren P( 中国人 |zhong'guo'ren) = P( 中国人 ) = P( 中国 )*P( 人 ) = 0.001 * 0.001 = 1e-6
- 15. scim-pinyin 模型示例 ( 继续 ) P( 种果人 |zhong'guo'ren) = P( 种果人 ) = P( 种果 )*P( 人 ) = 0.0001 * 0.001 = 1e-7 < 1e-6 = P( 中国人 |zhong'guo'ren) 所以最终结果为中国人 .
- 16. libpinyin 模型示例 例子 : zhong'guo'ren P( 中国人 |zhong'guo'ren) = P( 中国人 ) *P(zhong'guo'ren| 中国人 ) = P( 中国 )*P( 人 | 中国 )*P(zhong'guo| 中 国 )*P(ren| 人 ) = 0.01 * 0.1 * 0.7 * 0.5 = 3.5*10^-4
- 17. libpinyin 模型示例 ( 继续 ) P( 种果人 |zhong'guo'ren) = P( 种果人 )*P(zhong'guo'ren| 种果人 ) = P( 种果 )*P( 人 | 种果 )*P(zhong'guo| 种 果 )*P(ren| 人 ) = 0.01 * 0.01 * 0.8 * 0.5 = 4.0*10^-5 < 3.5*10^-4 = P( 中国人 |zhong'guo'ren) 所以最终结果为中国人 .
- 18. libpinyin on Fedora 19 开发计划 允许用户导入第三方词库 更多 ...
- 19. 总结 请使用 fonts-tweak-tool 来定制自己的桌面字体 将会在 Fedora 19 继续改进 libpinyin, 提供更好 的输入体验
- 20. Demo
- 21. 问题 ? Contact: pwu at fedoraproject dot org License statement goes here. See https://fedoraproject.org/wiki/Licensing#Content_Licenses for acceptable licenses.