Clustering reveals ubiquitous heterogeneity and asymmetry of genomic signals at functional elements. - Anshul Kundaje; Sofia Kyriazopoulou-Panagiotopoulou; Max W. Libbrecht; Cheryl L. Smith; Debasish Raha; Elliott E. Winters; Steven M. Johnson; Michael P. Snyder; Serafim Batzoglou; Arend Sidow (Adv. Math. Commun., 2013)