wav2letter++:最快开源语音识别系统

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"WAV2LETTER++是Facebook AI Research团队开发的最快的开源深度学习语音识别框架,其核心特点是完全用C++编写,并利用ArrayFire张量库实现最大效率。该系统在训练端到端神经网络进行语音识别时,比其他优化框架快2倍以上,并且训练时间线性扩展至64个GPU,适用于包含1亿参数的模型。" WAV2LETTER++系统的设计和架构是其高效性能的关键。它采用端到端(end-to-end)的方法,这意味着整个语音识别过程,从输入音频信号到输出文本,都在一个统一的深度学习模型中完成,无需手动特征工程。这种设计简化了流程,提高了速度,并允许模型直接从原始音频数据中学习。 在对比其他主要的开源语音识别系统时,WAV2LETTER++展现出了显著的优势。优化的框架使得研究人员能够快速迭代,这对于在新数据集和任务上进行成功的研究和模型调优至关重要。快速的训练速度意味着模型可以更快地适应变化的条件和需求,有助于缩短项目周期并提高研发效率。 此外,WAV2LETTER++的线性扩展能力是另一个亮点。当增加计算资源,如GPU的数量时,系统的训练时间成比例减少,这在处理大规模、高参数量的模型时尤其重要。例如,能够在64个GPU上运行,表明该系统具备处理复杂模型的能力,对于需要大量计算资源的深度学习应用非常有利。 在语音识别领域,WAV2LETTER++的出现推动了技术的进步,降低了进入门槛,并为研究人员提供了更强大、更快捷的工具。它不仅有助于学术研究,还对商业应用产生了深远影响,使得开发高效、准确的语音识别系统变得更加容易和快捷。 总结起来,WAV2LETTER++是深度学习语音识别领域的一个里程碑,它的高性能、开源性质以及优秀的可扩展性,使得它成为研究者和开发者在语音识别项目中的首选工具。通过持续的优化和改进,WAV2LETTER++将继续推动语音识别技术的发展,为人工智能领域带来更多的创新和突破。

Determining fastest mirrors Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 12: Timeout on http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock: (28, 'Resolving timed out after 30580 milliseconds') One of the configured repositories failed (未知), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Run the command with the repository temporarily disabled yum --disablerepo=<repoid> ... 4. Disable the repository permanently, so yum won't use it by default. Yum will then just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable <repoid> or subscription-manager repos --disable=<repoid> 5. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true Cannot find a valid baseurl for repo: base/7/x86_64

2023-06-13 上传

const ServerParam & SP = ServerParam::i(); const int self_min = wm.interceptTable()->selfReachCycle(); const int mate_min = wm.interceptTable()->teammateReachCycle(); int opp_min = wm.interceptTable()->opponentReachCycle(); const PlayerObject * opp_fastest = wm.interceptTable()->fastestOpponent(); if ( opp_fastest && opp_fastest->goalie() && wm.gameMode().isPenaltyKickMode() && opp_fastest->pos().dist( wm.ball().pos() ) >= 3.0 ) // MAGIC NUMBER { M_tackle_situation = false; M_opponent_ball = false; dlog.addText( Logger::TEAM, __FILE__":(update) penalty shootouts. not a tackle situation" ); return; } if ( opp_fastest && wm.gameMode().isPenaltyKickMode() && ! opp_fastest->goalie() ) { const AbstractPlayerObject * opponent_goalie = wm.getTheirGoalie(); if ( opponent_goalie ) { /* //yz del std::map< const AbstractPlayerObject*, int >::const_iterator player_map_it = wm.interceptTable()->playerMap().find( opponent_goalie ); if ( player_map_it != wm.interceptTable()->playerMap().end() ) { // considering only opponent goalie in penalty-kick mode opp_min = player_map_it->second; dlog.addText( Logger::TEAM, __FILE__":(update) replaced min_opp with goalie's reach cycle (%d).", opp_min ); } else { opp_min = 1000000; // practically canceling the fastest non-goalie opponent player dlog.addText( Logger::TEAM, __FILE__":%d: (update) set opp_min as 1000000 so as not to consider the fastest opponent.", __LINE__ ); } */ } else { opp_min = 1000000; // practically canceling the fastest non-goalie opponent player dlog.addText( Logger::TEAM, __FILE__":%d (update) set opp_min as 1000000 so as not to consider the fastest opponent.", __LINE__); } }

2023-07-25 上传