1. Borcek AO, Suner HI, Emmez H, Kaymaz M, Aykol S, Pasaoglu A: Accuracy of pedicle screw placement in thoracolumbar spine with conventional open technique. Turk Neurosurg 24:398-402, 2014 2. Ersen O, Bilgi S: Is it safe to evaluate pedicle screw position with postoperative tomography? Turk Neurosurg 25: 678, 2015 3. Tian NF, XU HZ: Image-guided pedicle screw insertion accuracy: A meta-analysis...

Today, several actors within the Internet’s burgeoning underground economy specialize in providing services to like-minded criminals. At the same time, gray and white markets exist for services on the Internet providing reasonably similar products. In this paper we explore a hypothetical arbitrage between these two markets by purchasing “Human Intelligence” on Amazon’s Mechanical Turk service, ...

ii ABSTRACT This report studies the 1991 Mathew Turk and Alexander Pentland paper: " Face Recognition using Eigenfaces " that appeared in the CVPR proceedings [1]. It has since become an extremely popular approach to face detection. Once implemented, the algorithm proves many of Turk and Pentland's claims of the Eigenface approach to detecting faces with a limited amount of training required. T...

Guiding principles for selecting the best crowdsourcing methodology for a given information gathering task remain insufficient. This paper contributes additional experimental evidence and analysis to this problem. Our work focuses on a subset of crowdsourcing problems we term expert tasks—tasks that require specific domain knowledge. We experiment with crowdsourcing a knowledge base (KB) of sci...