The conference will be held in the Mövenpick Hotel Amsterdam City Centre:
The nearest airport is Schiphol, also known as AMS, or Amsterdam Airport. It has excellent connections to everywhere.
To reach the conference venue, take any train from Schiphol trainstation to Amsterdam Central Station. Note that there are trains through Amsterdam that do not go through Central Station.
Exit Central Station on the water side and take short walk to the hotel:
Amsterdam features excellent public transport with trams, buses, and metro. If you stay at a different hotel, you can easily get around Amsterdam using the tram. Google Maps is a good guide, and includes public transport information.
The main site to consult for public transport is GVB. If you expect to travel a lot in Amsterdam during your stay, you might want to consider buying a 1 or multi-day ticket. They can be bought at Schiphol.
NB: 1 hour tickets can be bought on trams or buses directly but require cash; creditcards are only supported by a limited set of ticketing machines on the larger stations (e.g., Amsterdam Central and Schiphol).
However, down-town Amsterdam itself is best traveled by bike. More info here.