Table 5.
Approaches for chromatin contact peak-calling
Approach | Assumption on background model | Pros | Cons | Refs |
---|---|---|---|---|
Jin et al. | Global background | Models contact-frequency uncertainty as a negative binomial distribution | Variability of local chromatin organization may introduce biases | 19 |
Fit-Hi-C | Global background | Accurate background model using non-parametric spline | Variability of local chromatin organization may introduce biases | 91 |
GOTHiC | Global background | Models contact-frequency uncertainty as binomial distribution | Variability of local chromatin organization may introduce biases | 54 |
HiCCUPS | Local background | Designed for high-resolution Hi-C data | Deep sequencing is required | 27 |
HMRF | Global or local background | Models spatial dependency among adjacent, interacting loci | High computation cost | 93 |
GOTHiC, genome organisation through HiC; HiCCUPS, Hi-C computational unbiased peak search; HMRF, hidden Markov random field.