This paper presents a survey on multi-agent platforms, with a particular focus on methodology. It presents the four stages of the construction of a multi-agent system and derives from these stages several criteria for comparison. These criteria are then used to evaluate four selected platforms, and lead to a discussion on the future of multi-agent platforms.

According to the fundamental laws of quantum optics, vacuum noise is inevitably added signal when one tries amplify a signal. However, it has been recently shown that noiseless amplification can be realized phase-sensitive process involved. Two schemes, correlation injection scheme and two-beam amplifier scheme, are both proposed realize multi-way in symmetrical cascaded four-wave mixing proces...

We describe a new minimum extent, persistent surface water classification for reaches of four major rivers in the Peruvian Amazon (i.e., Amazon, Napo, Pastaza, Ucayali). These data were generated by Rural Livelihoods and Poverty (PARLAP) Project which aims to better understand nexus between livelihoods (e.g., fishing, agriculture, forest use, trade), poverty, conservation over 35,000 km river n...