Meeting Notes 20081027 Meeting with Jessica (10/27/2008)
From Nemo
10/27/2008
Phone Meeting (Dejing, Gwen, and Jessica Turner)
Topic: Planning for PAR-07-425 NIH grant proposal
- Dejing pointed us to a somewhat related NSF proposal: CDI (see Trak for program announcement)
- We agreed to target a preproposal, due on Jan 9 (2009), to this program
- We discussed whether the focus for CDI and 425 should be somewhat different?
- Our intention for both is to focus on:
- Extending NEMO ontology methods to fMRI results (patterns)
- Mapping representations of ERP, fMRI results
- One suggestion was to focus more on the role of data mining (bottom-up method) in CDI and more on the conventional, top-down approach for 425.
- Dejing will take lead on outlining some specific aims for CDI - by next Monday, Nov 3
- We discussed the problem of integrating top-down (BFO style) and bottom-up (Dejing style) approaches
- Jessica pointed us to USC work in this area: http://omega.isi.edu/.
- Tradeoffs in logic/langauge development. All logics should be sound, computable. Problem is tradeoff between expressiveness & completeness [GF-hope I summarized this correctly]
- Dejing gave overview of some different ontologies, the tradeoffs in expressivity vs. completeness
- OWL sacrifices some expressivity in favor of completeness. It derived from DL (FOL). Some groups (such as USC Omega) have argued that this is an important limitation of OWL
- SWRL is more expressive. Based on Horn logics.
- We could encode some concepts,relations that OWL can't handle in SWRL, powerloom, etc. The problem in this case may be putting together pieces of ontologies coded in different languages/logics. Syntax not a big problem (can be handled with wrappers/translators). Problem is potential gaps in semantics…
- Summary aims for PAR-425
- Gwen will take initial stab at outlining some specific aims (by next Tuesday, Nov 4 - ELECTION DAY!)
- Then iterate with Jessica & Dejing
