搜尋結果
For example a local trust metric might predict "Alice should trust Carol as 0.9" and "Bob should trust Carol as 0.1", or more formally trust (A,C)=0.9 and trust (B,C)=0.1. On the other hand, a global trust metric computes a single global trust value for every single user. Local trust metrics start from the assumption that every single trust ...
Definition. "In P2P search (a.k.a. distributed search), each individual connected to the network serves its local index as a source of search. Instead of having a central company and a central server, each participant of the network is a search repository. Since we are talking about web indexing and web searching, a user's internet cache might ...
Description. Uzi Shmilovic: 'The virality coefficient is super important, but there's one other critical number that you should pay attention to--the cycle time. The cycle time is the average time it takes from the moment that one of your users performs a viral action to the moment that a new user signs up because of this very action.
Definition. "People’s organizations (POs), unlike NGOs, are established by and represent sectors of the population like small farmers, artisanal fisherfolk, slum dwellers and others. POs take a wide variety of forms and exist at various levels. - Community-based organizations (CBOs) mobilize and represent local populations and directly ...
Key Conditions That Must Be Addressed. 1. Create the framework for shared meaning among all of these people (sometimes done by using "boundary objects", like the problem itself as a "boundary object" with many facets of factors that must be addressed by the diverse group of people involved. 2. Create a framework for real trust among the people ...
2008年5月26日 · While Internet is an old technology, since it was first deployed in the U.S. in 1969, it was only in the 1990s, with the invention of the World Wide Web by Tim Berners-Lee and the privatization of the Internet by the U.S. Defense Department, that it became a mass medium. From 9 million users in 1995 it went to over 1 billion users in 2007.
2011年1月26日 · The original ATCA -- Asymmetric Threats Contingency Alliance -- is a philanthropic expert initiative founded in 2001 to resolve complex global challenges through collective Socratic dialogue and joint executive action to build a wisdom based global economy. Adhering to the doctrine of non-violence, ATCA addresses asymmetric threats and social ...
