@article { KRVK13a, title = {What do you think about this photo? A novel approach to opinion and sentiment analysis of photo comments}, journal = {International Journal of Data Mining, Modelling and Management (IJDMMM) }, number = {2}, pages = {138-157}, doi = {http://dx.doi.org/10.1504/IJDMMM.2013.053693}, year = {2013}, author = {Kisilevich, Slava and Rohrdantz, Christian and Veronica, Maidel and Keim, Daniel A.} }