Publications (10)
Network analysis of online bidding activity
I. Yang, E. Oh, B. Kahng
With the advent of digital media, people are increasingly resorting to online channels for commercial transactions. Online auction is a prototypical example. In such online transac…
Emerging behavior in electronic bidding
I. Yang, H. Jeong, B. Kahng +1
We characterize the statistical properties of a large number of agents on two major online auction sites. The measurements indicate that the total number of bids placed in a single…
Bidding process in online auctions and winning strategy:rate equation approach
I. Yang, B. Kahng
Online auctions have expanded rapidly over the last decade and have become a fascinating new type of business or commercial transaction in this digital era. Here we introduce a mas…
Vertical Confinement and Evolution of Reentrant Insulating Transition in the Fractional Quantum Hall Regime
I. Yang, W. Kang, S. T. Hannahs +2
We have observed an anomalous shift of the high field reentrant insulating phases in a two-dimensional electron system (2DES) tightly confined within a narrow GaAs/AlGaAs quantum w…
Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime
P. Jiang, C. -C. Chien, I. Yang +4
We report on the study of cleaved-edge-overgrown line junctions with a serendipitously created narrow opening in an otherwise thin, precise line barrier. Two sets of zero-bias anom…
Quantum Hall line junction with impurities as a multi-slit Luttinger liquid interferometer
I. Yang, W. Kang, L. N. Pfeiffer +4
We report on quantum interference between a pair of counterpropagating quantum Hall edge states that are separated by a high quality tunnel barrier. Observed Aharonov-Bohm oscillat…