Any replica in a replication topology stores its current replication state in a replica update vector (RUV). The RUV is stored in memory by a process that is running and provides the exact knowledge this replica has of itself and every other participant in the replication topology.

Now, using the RUV in the nsds50ruv attribute, we can find the operation that is at the origin of the delay. We look at the RUVs across the topology to see the last CSN to appear on a consumer. In our example, master 1 has the following RUV: Master 2 contains the following RUV: They appear to be perfectly synchronized.

2021年3月31日 · 那么RUVg采用的是 线性混合模型，因此我们要估计的回归参数有三个，分别是固定效应回归系数 β，随机效应回归系数 α 和随机误差项 ε，所有此时应该采用**广义最小二乘法进行参数估计，如上面代码所示，我们要求出 Xβ 这一部分，需要用 y - W×α 得到矫正后的矩阵，即： 其中： Xβ 这一部分被认为是只受实验设计所影响，而不受其他因素所影响，且ERCC表达量在各个sample中基本恒定，影响ERCC表达的因子矩阵 W 同样也会影响整个表达矩阵，因 …

2020年9月8日 · RUVSeq包，全称是Remove Unwanted Variation from RNA-Seq Data，名字起的非常通俗易懂，让人一看就知道这个R包在干什么了。 不过这个R包的介绍中，提到的是用来做normalization，通过normalization来消除batch effect。 其实仔细想想，我们是 可以把normalization理解为一种去除library size批次的方法，所以normalization和batch effect其实是在干一件事情，只不过batch的意义更宽泛罢了。 作为业内大家同样认同的工具，有必要再学习 …

2024年10月29日 · In this document, we show how to conduct a differential expression (DE) analysis that controls for “unwanted variation”, e.g., batch, library preparation, and other nuisance effects, using the between-sample normalization methods proposed in Risso et al. (2014). We call this approach RUVSeq for remove unwanted variation from RNA-Seq data.

RUVg function implements the RUVg normalization procedure of Risso et al. (2014), by using control genes to remove unwanted variation from the RNA-Seq read counts.

2014年8月24日 · We propose a normalization strategy, called remove unwanted variation (RUV), that adjusts for nuisance technical effects by performing factor analysis on suitable sets of control genes (e.g., ERCC...

has anyone used a normalization strategy, called remove unwanted variation (RUV) (Risso et al. 2014, Nature), in DESeq analyses? The methods RUVg and RUVs should be easy to incorporate with DESeq2, by adding these factors to the colData (dds) and including them in the design. The RUVr method requires an edgeR output as input.

2010年10月20日 · Can anyone define what an RUV is? During troubleshooting I received error messages indicating that I had conflicting RUV IDs (see below). At first I thought they were the same thing as a replication ID.

2020年5月1日 · RUVS can be deployed baited (BRUVS) or unbaited (UBRUVS) and allow for an estimation of the MaxN metric, a relative measure of species abundance. Recording species MaxN in a variety of marine habitats provides associations between species abundance and habitat type, known as ‘species-habitat relationships’.