Google also wanted to leverage the same collaborative filtering technology to be able to recommend images, videos, and music, for which it's more difficult to analyze the underlying content.
Google希望能够通过调节这个复合筛选技术来解决内容分析方法难以解决的图片，video，还有音乐方面的推荐。
Beside filtering interference signals and extract effective signals, it is a difficult problem to study the separation of multi-signal of sound wave and vibration.
在实际测量过程中，除了过滤干扰信号，提取有效信号外，多振动源信号分离是本文研究的一个难点。
Compared with common audio signal processing attacks such as MP3 compression, low-pass filtering etc., they are more difficult to manage.
与mp3音频压缩、低通滤波等常规的音频信号处理攻击相比，同步攻击更加难以抵抗，已经成为研究界的一个公开难题。
To efficiently resolve the problem that the new item is difficult to recommend in collaborative filtering algorithm. In this paper we propose a new method based item matrix partition.
为了有效地解决协同过滤算法中新项目难以推荐的问题，文中提出了一种对项目矩阵进行划分的方法。
Although Wiener filtering has better performance in OFDM channel estimation, it is difficult to implement, because of high complexity.
在应用于OFDM系统的信道估计方法中，维纳滤波是一种估计性能较好的算法，但是该方法计算复杂度大，不利于实现。
Because the HTML page contains rich information, the traditional TFIDF formula is difficult to meet the requirements of content filtering systems.
网页包含的信息很丰富，传统的TFIDF公式很难满足内容过滤系统的要求。
Finally I sums up some shortcomings of several kinds of filtering technology and some difficult problems in designing.
最后总结了这几种过滤技术的不足之处与设计中遇到的难点问题。
Note that the base method provides a lot of default filtering criteria that would be difficult to reproduce if you completely override the method;
请注意，基底方法提供了许多预设筛选准则，如果您完全覆写了该方法，这些预设筛选准则将很难再重现。
Note that the base method provides a lot of default filtering criteria that would be difficult to reproduce if you completely override the method;
请注意，基底方法提供了许多预设筛选准则，如果您完全覆写了该方法，这些预设筛选准则将很难再重现。
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