libDAI-0.2.2 (2008-??-??)
-------------------------

* Now compiles also under Visual C++.
* Added Exceptions framework.
* Replaced ENUM2,ENUM3,ENUM4,ENUM5,ENUM6 by single DAI_ENUM macro.
* Added more features to utils/createfg for creating factor graphs.
* Pervasive change of BipartiteGraph implementation (based on an idea by
  Giuseppe Passino). BipartiteGraph no longer stores the node properties 
  (former _V1 and _V2), nor does it store a dense adjacency matrix anymore, 
  nor an edge list. Instead, it stores the graph structure as lists of 
  neighboring nodes. This yields a significant memory/speed improvement for 
  large factor graphs, and is more elegant as well. Iterating over neighbors is
  made easy by using boost::foreach.
* Improved index.h (merged from SVN head):
  - Renamed Index -> IndexFor
  - Added some .reserve()'s to IndexFor methods which yields a 
    25% speedup of testregression
  - Replaced multind by Permute
  - Added MultiFor
  - Added State
* Moved everything into namespace "dai"
* Renamed DEBUG to DAI_DEBUG to avoid conflicts
* Added conditional compilation of inference methods
* Contributions by Peter Gober:
  - Renamed variable _N in mr.* for compatibility with g++ under cygwin
* Contributions by Giuseppe Passino:
  - removed "using namespace std;" from header files - bad practice
  - moved header files in include/dai and sources in src
  - changed #ifndefs to GNU style
  - added extra warning checks (-W -Wextra) and fixed resulting warnings
  - dai::TProb: 
    o removed copy constructor and assignment operators (redundant)
    o implementation of some methods via STL algorithms
    o added methods takeExp, takeLog, takeLog0 for transformation in-place
    o explicit constructor (prevents implicit conversion from size_t to TProb)
    o added operator+,+=,-,-=, with argument T (for calculations in log-scale)
  - Added "logdomain" property to BP, a boolean that controls whether 
    calculations are done in the log-domain or in the linear domain;
    doing calculations in the log-domain may help if the numerical range
    of a double is too small.
* Contributions by Christian Wojek:
  - New FactorGraph constructor that constructs from given ranges of factors
    and variables
  - Optimization of FactorGraph constructors using tr1::unordered_map.
* FactorGraph constructors no longer check for short loops (huge speed
  increase for large factor graphs), nor for negative entries. Also, the 
  normtype is now Prob::NORMPROB by default.
* VarSet is now implemented using a std::vector<Var> instead of a
  std::set<Var>, which yields a significant speed improvement.
* Improved MaxSpanningTreePrims algorithm (uses boost::graph)
* Small optimization in Diffs
* Improved ClusterGraph implementation, yielding significant speedups
  for the JunctionTree algorithm on large factorgraphs.
* Improved documetation
* Interface changes:
  - VarSet::
      stateSpace() -> states()
      VarSet( const std::set<Var> ) -> VarSet( begin, end, sizeHint=0 )
      VarSet( const std::vector<Var> ) -> VarSet( begin, end, sizeHint=0 )
      removed bool operator||
      operator&&(const VarSet&) -> intersects(const VarSet&)
      operator&&(const Var&) -> contains(const Var&)
  - FactorGraph::
      delta(const Var &) -> delta(size_t)
      Delta(const Var &) -> Delta(size_t)
      makeCavity(const Var &) -> makeCavity(size_t)
      vars() -> vars
      factors() -> factors
      removed MakeFactorCavity(size_t)
      removed ExactMarginal(const VarSet &)
      removed ExactlogZ()
      moved isConnected() to BipartiteGraph
  - RegionGraph::
      nr_ORs() -> nrORs()
      nr_IRs() -> nrIRs()
      ORs() -> ORs
      IRs() -> IRs
  - *::Regenerate() -> *::create()
  - Renamed Index -> IndexFor
  - Diffs:
      max() -> maxDiff()
      max_size() -> maxSize()
  - Prob::max() -> Prob::maxVal()
  - Factor::max() -> Factor::maxVal()
  - toc() in util.h now returns seconds as a double
  - VarSet::operator&&


libDAI-0.2.1 (2008-05-26)
-------------------------

Bugfix release.
* added missing cstdio header in util.h
* fixed Properties in MR_CLAMPING_* and MR_EXACT_*
* added description of the factor graph fileformat
* improved Makefile


libDAI-0.2.0 (2006-11-30)
-------------------------

First public release.