In New York, you must be a registered Democrat or Republican to vote in the primary election; a portion of the 16 percent from that district might not know that. New Yorkers registered with a third party, such as the Green Party, Independence Party, Libertarian Party or Working Families Party, can't vote in the primary.
Collaborative filtering (CF) is a method used by some recommender systems. It consists of two senses, a narrow one and a more general one. In general, collaborative filtering is the process of filtering for information or patterns using techniques involving collaboration among multiple agents, viewpoints, data sources.
Table of Contents. 1  The trend toward more collaborative research, and examples of it. 2  What is collaborative research? Collaboration usually involves two or more researchers within an institution or in different institutions, working either in the same field or in different scientific fields or sectors of the economy.