When you post questions, you also need to post what you THINK the answers are, even if your thoughts may not be completely formed yet.
We aren't here to give away answers (even when we know them!); we're here to help YOU learn how to do YOUR OWN work.
Please repost when you have some ideas gathered for each of your questions.
http://www.idemployee.id.tue.nl/g.w.m.rauterberg/conferences/CD_doNotOpen/ADC/final_paper/409.pdf (Adobe file)