added KDD Poster
added KDD Poster


Former-commit-id: 76a77c0c422693835a0950f94dd01b6b644ce1b8
Former-commit-id: 5f7d6743052ed5a6f979f0a0596b5c9f065ad806
dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy