Digging up the recent past

Hybridization in the recent past.

The question we address in this article is how hybridization in the recent past can be detected in recently evolved species. Such species may not have evolved genetic incompatibilities and may hybridize with little or no fitness loss. Hybridization can be recognized by relatively small genetic differences between sympatric populations because sympatric populations have the opportunity to interb...

Digging up the Dirt on User Generated Content Consumption

Knowledge-sharing online social networks are becoming increasingly pervasive and popular. However, consumption of user generated content in these networks has not been studied extensively despite its significant influence on many social network behaviors. In this work, we study data gathered from digg.com and ireport.com for studying the creation and consumption behavior. We build on our prior ...

Quarry: Digging Up the Gems of Your Data Treasury

The design lifecycle of a data warehousing (DW) system is primarily led by requirements of its end-users and the complexity of underlying data sources. The process of designing a multidimensional (MD) schema and back-end extracttransform-load (ETL) processes, is a long-term and mostly manual task. As enterprises shift to more real-time and ’onthe-fly’ decision making, business intelligence (BI)...

Digging into Déjà Vu: Recent Research on Possible Mechanisms

The déjà vu experience has piqued the interest of philosophers and physicians for over 150 years, and has recently begun to connect to research on fundamental cognitive mechanisms. Following a brief description of the nature of this

The past climate change heats up.