Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

QR Decomposition

The QR decomposition uses the Gram-Schmidt process to express a set of vectors (columns of design matrix from statistical view) in a set of orthogonal unit vecotors (which means …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

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Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

1. xls2csv -f allow to parse also the lines with empty cell in first column xls2csv

2. catdoc and xls2csv, catppt

3. ssconvert file.csv file.xls (gnumeric)

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

1. Samsung 840 pro is a good one

2. not necessary for SATA II interface

3. SSD is not as reliable as HD

4. MLC has much longer life than VLC

5. don't defragment disk (on …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Training and Testing Data Set

• good when you have large amount of data

• usually use 1/5 to 1/3 of the data as testing data set.

K-fold CV

• suitable when …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

The problem is actually to estimate the number of null hypotheses.

• Benjamini

• Nettleton