I would like to encourage you to submit your research in the field of rules, rule-based reasoning and its applications to RuleML 2015 (http://2015.ruleml.org).
It is an excellent opportunity for a high impact conference publication (http://en.wikipedia.org/wiki/RuleML_Symposium; e.g., RuleML is in the top 100 venues for impact factor in CiteSeerX http://citeseerx.ist.psu.edu/stats/venues).
Also note, that there are several additional collocated events, e.g., the Recommender Systems for the Web of Data Challenge (http://2015.ruleml.org/recsysrules-2015.html), the Doctoral Consortium (http://2015.ruleml.org/DoctoralConsortium.html), the 9th International Rules Challenge with competitive prizes for the best rule base, the Reasoning Web Summer School, RR 2015 and the Workshop on Formal Ontologies meet Industry (http://www.csw.inf.fu-berlin.de/fomi2015/), as well as the 25th CADE 2015.
If you are doing your Phd in this field I would like to point you to the Reasoning Web Summer School (http://www.csw.inf.fu-berlin.de/rw2015/) and the joint RuleML/RR Doctoral Consortium ((http://2015.ruleml.org/DoctoralConsortium.html), where you can submit your Phd paper. Accepted RuleML Phd papers and demo papers will be published in the Challenge proceedings which are listed in DBLP (http://dblp1.uni-trier.de/db/conf/ruleml/) and fully indexed e.g. in Scopus.
Also the workshop on Formal Ontologies meet Industry (FOMI 2015) might be relevant for you if you are working on Ontologies (http://www.csw.inf.fu-berlin.de/fomi2015/).
And, further interesting things will happen at RuleML 2015, such as an ISO Common Logic, OMG API4KB and OASIS LegalRuleML face-to-face meeting. We will also have a Berlin Semantic Web Meetup during RuleML on August 4th. Details will follow soon on the Meetup website: http://www.meetup.com/The-Berlin-Semantic-Web-Meetup-Group/.
Thank you and hope to see you in Berlin, Germany in August,
(General Chair RuleML 2015)
Prof. Dr. Adrian Paschke
AG Corporate Semantic Web
Freie Universitaet Berlin