This thesis attempts to describe the necessary steps to program an application to take pictures, organize and process them in order to generate and visualize a three-dimensional colored point cloud. The steps to create the application are explained, using the argumentative logic to every decision and fulfill the stated objective in the best possible way, balancing the available technology and t...

We consider the problem of making efficient qualitytime-cost trade-offs in collaborative crowdsourcing systems in which different skills from multiple workers need to be combined to complete a task. We propose CrowdAsm an approach which helps collaborative crowdsourcing systems determine how to combine the expertise of available workers to maximize the expected quality of results while minimizi...

Peer-to-peer systems have emerged as a popular way to share huge volumes of data. The usability of these systems depends on effective techniques to find and retrieve data; however, current techniques used in existing P2P systems are often very inefficient. In this paper, we present three techniques for efficient search in P2P systems. We present the design of these techniques, and then evaluate...