最近两位计算机科学的研究人员已经提出了一个算法，这个算法能用于提取出像素图形的低分辨率部分，提升其分辨率准确地适合向量图形。
A pair of computer science researchers have come up with an algorithm that can take a low-resolution piece of pixel art and upscale it accurately to vector graphics.
至今已经提出了决策树的很多算法，通过分析已知的分类信息得到一个预测模型。
So far, there are many algorithms have been given and we can gain a prediction model by analyzed known catalog information.
目前已经提出了许多结构连接的算法，它们中的大多数都基于如下的前提条件之一：输入元素集合存在索引或者有序。
There have been a number of algorithms proposed for structural join, and most of them are based on one of the following assumptions: the input element sets either have indexes or are ordered.
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