A trend that has been observed over the recent years is that many companies, especially so‰ware companies, are outsourcing work to previously unknown parties [11]. Instead of outsourcing tasks to known, or previously used, firms, they obtain workers through online platforms such as Amazon’s Mechanical Turk [2]. Œis type of outsourcing is sometimes referred to as crowdsourcing. On the market tod...

This experiment tests to see how well commonly used computer platforms withstand Internet attacks in the wild. The experiment quantifies the amount of time it takes for a computer to be attacked and compromised when placed on a live network for the very first time and qualifies the type of attack method used to successfully compromise a computer over a two week period. Six different platforms w...

We consider the implications of platform price discrimination in the context of card platforms. Despite the platform’s ability to price discriminate, we show it will set fees for card usage that are too low, resulting in excessive usage of cards. We show this bias remains even if card fees (or rewards) can be conditioned on each type of retailer that the cardholder transact with. We use our mod...

Multi-homing, a strategy where a developer is publishing products for multiple platforms, is studied in this paper using descriptive analysis. The data of over 850,000 applications and their developers were collected from Apple App Store, Google Play, and Microsoft’s Windows Phone Marketplace. The developers publishing for several software ecosystems were then identified. The findings show that...

This study aimed to describe the digital disease detection and participatory surveillance in different countries. The systems or platforms consolidated in the scientific field were analyzed by describing the strategy, type of data source, main objectives, and manner of interaction with users. Eleven systems or platforms, developed from 1996 to 2016, were analyzed. There was a higher frequency o...

Hardware and algorithmic optimization techniques are presented to the left-shift, right-shift, and the traditional Euclideanmodular inverse algorithms. Theoretical arguments and extensive simulations determined the resulting expected running time. On many computational platforms these turn out to be the fastest known algorithms for moderate operand lengths. They are based on variants of Euclide...

Place categorization plays an important role in locationbased services as well as more recently in place-based geographic information systems. Traditionally, such categorization systems are often designed following a top-down approach in which a group of experts or users assign a place type, e.g. Restaurant, to a place instance, e.g., Bob’s BBQ shack. While the output of such a process generall...

This paper proposes a new family of four degrees-of-freedom (dof) parallel mechanisms with two platforms and its application to a footpad device that can simulate the spatial motions of the human foot. The new mechanism consists of front and rear platforms, and three limbs. Two limbs with 6-dof serial joints (P-S-P-P) are attached to each platform and are perpendicular to the base plate, while ...

Mobile service platforms are becoming particularly important as play a significant role in consumers’ decisions to accept, adopt and use mobile services and applications. Literature on mobile service platforms focuses mainly on strategic issues in managing multi-sided platforms and economic issues of two sided markets, still literature is highly conceptual and empirical research on the awarenes...

INTRODUCTION Tumor tissue and circulating tumor DNA (ctDNA) next-generation sequencing (NGS) testing are frequently performed to detect genomic alterations (GAs) to help guide treatment in metastatic renal cell carcinoma (mRCC), especially after progression on standard systemic therapy. Our objective was to assess if GAs detected by ctDNA NGS are different from those detected by tumor tissue NG...