Eugene Russo | Aug 24, 2003 | 7 min read
Courtesy of Gary Churchill THE GOOD, THE BAD, AND THE FILTERED: At left is a poor quality microarray with problems due to background contamination. At right is a good quality microarray with well defined spots and low background intensity. Data preprocessing methods can normalize and filter data derived from such images, which may make it impossible to detect problems apparent in the raw image data. Since their rise to fame in the mid 1990s, microarrays have been both lauded and critici