在本文中,我们介绍序列解码中的束搜索 (beam search) 技巧,详细拆解束搜索的每一步细节和每一步代码实现,并应用到语音识别的例子中。 相关前置知识:Python、PyTorch、Transformer基础、语音识别基础。 本文共约18000字,阅读需约45分钟,建议PC端阅读。 本文所有代码已开源,链接如下。 https://github.com/xiabingquan...
Beam Search(集束搜索)是一种启发式图搜索算法,通常用在图的解空间比较大的情况下,为了减少搜索所占用的空间和时间,在每一步深度扩展的时候,剪掉一些质量比较差的结点,保留下一些质量较高的结点。这样减少了空间消耗,并提高了时间效率,但缺点就是有可能存在潜在的最佳方案被丢弃,因此Beam Search算法是不完全的,一般...
论文在Word Beam Search A Connectionist Temporal Classification Decoding Algorithm 对应的github项目在githubharald/CTCWordBeamSearch。项目一共提供了三种实现方式:TensorFlow、C++和Python,由于Python容易实现,这里选取py文件夹进行分析。 缘起 最近项目碰到很多难点,让我对CTC的机制产生了疑问,反而觉得Attention很有必要了...
beam search对贪心算法做了优化,在每个step取beam num个最优的tokens。下图beam num=2,第一步先选取最优的2个值{A,C};在第二步,A和C作为输入,继续预测,则有10个可能得结果,然后再取其中最大的2个,作为输入,进行第三步,取结果中概率最大的2个,得到2个结果,然后再在2个结果中取最优的一个作为输出。
Updated Dec 22, 2024 Python vvikasreddy / lexically_constrained_beam_search_ Star 0 Code Issues Pull requests Implementation of a constrained beam search algorithm for Turkish-to-English machine translation using the MarianMT model and WMT dataset, following the approach outlined in Hokamp and...
retval = cv.text_OCRBeamSearchDecoder.run( image, mask, min_confidence[, component_level] ) run() [4/4] String cv::text::OCRBeamSearchDecoder::run ( InputArray image, InputArray mask, int min_confidence, int component_level = 0 ) Python: retval = cv.text_OCRBeamSearchDecoder.run(...
Python prototype:extras/prototype/ TensorFlow custom operation:extras/tf/ Please cite the followingpaperif you are using word beam search in your research work. Word Beam Search: A CTC Decoding Algorithm Beam Search Decoding in CTC-trained Neural Networks ...
Our evaluation was conducted on two publicly available datasets: HumanEval-X and APIzation, containing code snippets in Java, Python, JavaScript, and Go. The experimental results showed improvements compared to the direct application of PLM and the conventional beam search. We achieved significant ...
Python software. Notably, the dimensions of the CBCT voxels varied within the range of\((543,543,80)\)and\((543,543,190)\)across the\(X\),\(Y\), and\(Z\)axes respectively, with the associated Hounsfield units spanning from −1000 to 2000....
The system model and problem formulation section delineates the mathematical models and foundational theory pertinent to addressing the codebook beam pair selection challenge, focusing on the exhaustive beam search algorithm. The proposed method section exposes the proposed technique in-depth, encompassing ...