Overview

Crowd-Powered SystemsAlexander J. QuinnJanuary 15, 2015

Million Minds

Human Computation

“…a paradigm for utilizing human processing power to solve problems that computers cannot yet solve.”

Luis von Ahn. 2005.Human Computation. Doctoral Thesis, CMU.

Human Computation

Soylent

Credit: Michael Bernstein, et al. http://projects.csail.mit.edu/soylent/

Crowdsourcing

“Crowdsourcing is the act of taking a job traditionally performed by a designated agent (usually an employee) and outsourcing it to an undefined, generally large group of people in the form of an open call.”

Jeff Howe. 2007.Crowdsourcing: A Definition. http://crowdsourcing.typepad.com

Human Computation

Crowdsourcing

Monotrans

Credit: Chang Hu, et al. http://www.cs.umd.edu/hcil/monotrans/

Social Computing

“… applications and services that facilitate collective action and social interaction online with rich exchange of multimedia information and evolution of aggregate knowledge…”

Parameswaran, M. & Whinston, A.B. 2007.Social Computing: An Overview. CAIS 19:37, (2007), 762-780

Human Computation

Crowdsourcing

Social Computing

Data Mining

“the application of specific algorithms for extracting patterns from data.”

Fayyad, U. et al. 1996. Knowledge Discovery and Data Mining: Towards a Unifying Framework. KDD 1996.

Human Computation

Crowdsourcing

Social Computing

Data Mining

Collective Intelligence

"… groups of individuals doing things collectively that seem intelligent.”

Malone et al. 2009. Harnessing Crowds: Mapping The Genome of Collective Intelligence. MIT Sloan Research Paper.

Collective Intelligence

Human Computation

Crowdsourcing

Social Computing

Data Mining

Dimensions Motivation

Quality control

Aggregation

Human skill

Process order

Task-request cardinality