How rumors spread in online social media   Investigating large–scale Twitter data reveals that rumors spread in a drastically different temporal, structural, and linguistic pattern from non-rumors.   Article  |  Fall 2015     Detecting rumors has been an important problem in research as well as in everyday life because certain rumors that spread widely can cause criti...

A new HEVC-compliant perceptual video coding scheme based on Just Noticeable Difference   A new HEVC-compliant perceptual video coding (PVC) method has been developed that can improve coding efficiency through a significant number of bitrate reductions with negligible visual quality loss. Such a remarkable coding efficiency improvement comes from a novel quantization scheme based on an elaborate Just Noticeab...

Zinc-oxide-based nanostructures could help power wearable electonics   New research helps pave the way toward highly energy-efficient zinc-oxide-based micro energy harvesting devices with many applications in portable communications, healthcare, environmental monitoring, and more.   Article  |  Fall 2015     A group of researchers from the Korea Advanced Institute of Scienc...

Three-atom-thick semiconductor for future electronics   A scalable method to prepare an atomically-thin layered semiconductor was developed.   Article  |  Fall 2015     Great efforts have been made to achieve fast, high-performance electronics by reducing the dimensions of devices, which were characterized by Moore’s Law, stating that the number of transistors in IC d...

Traffic signal optimization for oversaturated urban roadway networks   The goal of this research is to develop a signal optimization algorithm that can equalize queue growth rates across links in oversaturated roadway networks, thereby postponing queue spillbacks that form at the localized sections of roadway networks.   Article  |  Fall 2015     Traffic in urban areas has ...

Enhancing sustainability of the National Pension Service by investing in population growth   Investing in population growth can enhance the sustainability of the National Pension Service.   Article  |  Fall 2015     The size of the National Pension Fund is currently 500 trillion won, which is larger than that of the annual government budget of South Korea. Moreover, the Nat...