Transform into a creepy voodoo doll with this Halloween Makeup Tutorial! Featuring a stitched mouth and button eyes, this look is perfect for spooky season, cosplay, or horror events. Step-by-step ...

Posts from this author will be added to your daily email digest and your homepage feed. is a senior editor and founding member of The Verge who covers gadgets, games, and toys. He spent 15 years ...

Abstract: Metamodels are simpler computer models that are designed to mimic the input-output behavior of discrete-event or other complex simulation models. They are models of models, thus the name ...

Abstract: Verification and validation (V&V) of simulation models are discussed in this paper. Different approaches to deciding model validity are described and a graphical paradigm that relates V&V to ...