The information in this wiki hasn't been maintained for a good while. Some of the projects described have since been deprecated.
In particular, the "Ushahidi Platform v3.x" section contains information that is often misleading. Many details about this version of Platform have changed since.
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Software: Are there existing data cleanup tools? University of Chicago Data Science for social good fellows are looking at a software way to standardize basic data cleaning.
Manual: Clean existing datasets that folks want to release. This includes datasets across many Types of Maps including Haiti, Kenya, and Nepal.
Programs and Training: Create community training programs to help the community release the data. eg. Learning from the School of Data with Data Expeditions and more