| 1 | 2008-02-08 Version 0.7 released |
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| 2 | New Features |
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| 3 | + new data structures |
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| 4 | * classes |
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| 5 | StaticGraph |
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| 6 | ExtendFindEnum |
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| 7 | BfsVisitor class |
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| 8 | Bipartite partitions based on visitors |
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| 9 | * helper class for checking existence of a nested class |
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| 10 | * general mapping based variant type |
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| 11 | * IntegerMap |
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| 12 | + new algoritmhs |
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| 13 | * Lagrange relaxation based algorithm for the delay constrained least cost path problem |
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| 14 | * a preflow based general network circulation algorithm |
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| 15 | * 2-approximation of Steiner-tree problem |
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| 16 | * two heuristics for minimum cut algorithms (http://www.avglab.com/andrew/pub/neci-tr-96-132.ps) |
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| 17 | * Gomory-Hu tree algorithm |
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| 18 | * Edmond's Blossom shrinking algorithm |
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| 19 | * minimum mean cycle algorithm |
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| 20 | * Goldberg-Tarjan algorithm (Preflow with Dynamic Trees) |
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| 21 | * Dinitz-Sleator-Tarjan (Blocking flow with Dynamic Tree) |
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| 22 | * min cost flow algorithms: |
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| 23 | * successive shortest path algorithm |
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| 24 | * capacity scaling algorithm |
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| 25 | * simple cycle canceling algorithm |
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| 26 | * minimum mean cycle canceling algorithm |
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| 27 | * cost scaling algorithm |
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| 28 | * network simplex algorithm |
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| 29 | * min cost maximum flow algorithm |
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| 30 | + new functions and tools |
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| 31 | * ArgParser, a command line argument parser |
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| 32 | * DistLog, a tool for measuring one and two dimensional distributions |
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| 33 | * undirected minimum cut benchmarking |
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| 34 | * tools/lgf-gen.cc, a random graph generator |
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| 35 | * BpUGraphReader and Writer |
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| 36 | * DynEdgeLookUp implementation based on splay trees |
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| 37 | * MACROS for debug map usage |
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| 38 | + new distributions (Gaussian, exponential, Gamma, two dimensional random, buffered bit generation) |
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| 39 | + push-relabel type algorithm related additions |
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| 40 | * Elevator, a class for handling item labels in push-relabel type algorithms |
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| 41 | * a push/relabel type max cardinality matching implementation |
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| 42 | * some query function for push-relabel based matching |
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| 43 | + LP related additions |
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| 44 | * Soplex support |
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| 45 | * ColIt class |
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| 46 | * new functions (simplify(), isFinite(), row and col getter function) |
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| 47 | * _setColCoeff and _setRowCoeff parameters |
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| 48 | * section reader and writer for LEMON IO |
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| 49 | * equality-type constraint can now be added to a LP |
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| 50 | * virtual functions of class LpCplex |
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| 51 | * some query functions for GLPK |
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| 52 | + demos |
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| 53 | * preflow based general network circulation demo |
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| 54 | * Steiner 2-approximation demo |
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| 55 | * demo for SAT problems |
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| 56 | * sample input for sat-2 and sat demos |
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| 57 | + tests for |
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| 58 | * graph copies |
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| 59 | * random.h |
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| 60 | * max weighted matchings |
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| 61 | + planarity related additions |
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| 62 | * checking and embedding |
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| 63 | * planar grid embedding |
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| 64 | * planar graph coloring |
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| 65 | + bipartite matchings |
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| 66 | * common interface |
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| 67 | * Query functions: aMatching and bMatching |
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| 68 | * ANodeMap<UEdge> matching map |
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| 69 | * BNodeMap<bool> barrier map |
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| 70 | Repository reorganization |
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| 71 | * script for automatic checking of SVN commit's consistency |
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| 72 | * automatic doc generation from the SVN trunk |
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| 73 | * check for gcc version 3.3, 3.4, 4.0 and 4.1.2 as well |
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| 74 | * reorganization of the modules and groups |
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| 75 | * a tools directory added for useful executables codes |
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| 76 | * doxygen |
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| 77 | * renaming topology doxygen group to graph_prop doxygen group |
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| 78 | * introducing planar doxygen group |
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| 79 | Changes |
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| 80 | * redesigned |
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| 81 | * undirected edgesets (like the smart graph or ugraph) |
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| 82 | * interface of MaxMatching and UnionFindEnum |
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| 83 | * interface of maximum flow algorithms |
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| 84 | * Kruskal algorithm |
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| 85 | * augmenting path based bipartite matching |
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| 86 | Improvements |
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| 87 | * graph copy |
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| 88 | * preliminary support for static graphs |
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| 89 | * added BpUGraphCopy |
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| 90 | * Bfs/Dfs/Dijkstra |
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| 91 | * conditional execution until the target is reached |
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| 92 | * modified start() function in Dfs and Dijkstra classes to give back reached edge/node |
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| 93 | * return the temporary distance of the current node |
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| 94 | * using operation traits in Dijkstra |
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| 95 | * patch for retrieving reached/processed node |
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| 96 | * prescaling can be turned off in GraphToEps |
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| 97 | * better handling of inexact computations |
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| 98 | * easier inverse |
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| 99 | * faster geometric minimum spanning tree algorithm |
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| 100 | * new implementation of undirected graphs |
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| 101 | * Hao-Orlin algorithm became epsilon-safe |
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| 102 | * LpSoplex |
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| 103 | * added getter functions |
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| 104 | * better m4 file |
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| 105 | * better handling of unsolved lps |
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| 106 | * allowing 'string' type quoting for item reading and writing |
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| 107 | * clear() function for union-find structures |
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| 108 | * hacking MIP is possible without integer variables |
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| 109 | * space reservation for SmartGraph |
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| 110 | * path |
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| 111 | * PathNodeIt |
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| 112 | PathWriter/Reader structures |
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| 113 | Distinct MapSet readers and writers |
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| 114 | * more simple interface for PathDumper |
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| 115 | Updated |
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| 116 | * tutorial for |
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| 117 | * algorithms |
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| 118 | * graph visualization |
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| 119 | * documentation |
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| 120 | Backward incompatibilities/changed namings |
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| 121 | * min_cut.h => nagamochi_ibaraki.h |
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| 122 | * clone => build |
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| 123 | * RevIt => RevEdgeIt |
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| 124 | * _FixId => LpId |
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| 125 | * setObj => obj |
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| 126 | * is_min => isMin |
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| 127 | * is_max => isMax |
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| 128 | * ball2() => disc() |
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| 129 | * state_enum => State |
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| 130 | * getNotifier => notifier |
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| 131 | * using LEMON_ASSERT instead of LogicError() |
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| 132 | * uedgeset is an alias for edgeset |
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| 133 | * CPXMIP_OPTIMAL_TOL status is considered as OPTIMAL too |
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| 134 | * removed "Type" suffix from typedefs |
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| 135 | * lower case local variables |
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| 136 | Removed |
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| 137 | - SspMinCostFlow |
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| 138 | - template Map template parameter from InvertableMaps |
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| 139 | - union-find Item template parameter |
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| 140 | - strict checking |
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| 141 | - some automatic callback generation |
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| 142 | - '-Wshadow' seemed too strict therefore removed |
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| 143 | Several bugfixes |
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| 144 | |
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| 145 | 2006-10-31 Version 0.6 Released |
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| 146 | GLEMON has moved to a separate repository |
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| 147 | (https://hugo.cs.elte.hu/svn/glemon/trunk) |
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| 148 | New Features |
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| 149 | + Mixed Integer Programming (MIP) support |
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| 150 | + interface to GLPK and CPLEX MIP solvers |
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| 151 | + Data structures |
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| 152 | * Bipatrite graph concepts and implementations |
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| 153 | * a Polinomial template class |
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| 154 | * RefPtr: a reference counted pointer class |
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| 155 | * SimpleBucketHeap |
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| 156 | + random.h: Mersenne Twister random number generator |
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| 157 | + EdgeLookUp and AllEdgeLookUp |
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| 158 | + Tools to find edges between to nodes in time O(log d) |
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| 159 | + new matching algorithms |
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| 160 | + Bipartite Graph Max Cardinality Matching (Hopcroft-Karp) |
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| 161 | + MaxWeightedBipartiteMatching |
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| 162 | + MinCostMaxBipartiteMatching |
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| 163 | + MaxCardinalitySearch |
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| 164 | + MinimalCut in UGraph |
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| 165 | + Tabu Search framework |
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| 166 | + Minimum Cost Arborescence algorithm |
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| 167 | + Edmonds-Karp MaxFlow |
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| 168 | + Hao-Orlin algorithm |
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| 169 | + eps.h: A simple tool to create .eps pictures. |
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| 170 | Backward incompatibilities/changed namings: |
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| 171 | * UndirXyz -> UXyz |
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| 172 | * UNDIRGRAPH_TYPEDEFS -> UGRAPH_TYPEDEFS |
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| 173 | * GridGraph -> GridUGraph |
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| 174 | * LinearHeap -> BucketHeap |
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| 175 | * ColorSet -> Palette |
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| 176 | * xy -> dim2::Point |
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| 177 | * DirPath -> Path |
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| 178 | * concept -> concepts (namespace & directory) |
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| 179 | * LpSolverBase |
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| 180 | * ColName() -> colName |
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| 181 | * Coeff() -> coeff() |
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| 182 | * MinCostFlow -> SspMinCostFlow |
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| 183 | Repository reorganization: |
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| 184 | * compilation is conducted by a single makefile |
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| 185 | * internal building blocks are now in a separate directory |
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| 186 | (lemon/bits) |
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| 187 | Major improvements of many algorithms and data structures |
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| 188 | Several bugfixes |
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| 189 | Compatibility issues: |
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| 190 | * known to compile with |
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| 191 | * GCC 3.3, 3.4, 4.0, 4.1 |
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| 192 | * MinGW, MinGW32 |
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| 193 | * Intel C++ 9.x support |
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| 194 | |
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| 195 | 2006-02-03 Version 0.5 Released |
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| 196 | New features |
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| 197 | + Shortest paths algorithms |
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| 198 | * bellman_ford.h |
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| 199 | * floyd_warshall.h |
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| 200 | * johnson.h |
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| 201 | + Euler tour iterator for directed and undirected graphs |
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| 202 | + Other algorithms: |
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| 203 | * dag_shortest_path.h |
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| 204 | * fredman_tarjan.h and prim.h for min cost trees |
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| 205 | + Bipartite graph concept and implementations |
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| 206 | + Graph maps: |
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| 207 | * template assign operator |
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| 208 | * specialized iterable bool map |
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| 209 | * potential difference map |
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| 210 | * NodeMatrixMap -- Matrix over the nodes |
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| 211 | + Maps: |
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| 212 | * IterableIntMap |
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| 213 | + Tools: |
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| 214 | * Timer can be stop()ed and (re)start()ed |
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| 215 | * radix sort algorithm |
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| 216 | * tolerance.h for working with imprecise numbers |
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| 217 | New demos, benchmarks and tools |
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| 218 | + graph_orientation.cc: A thoroughly documented demo application |
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| 219 | + runningTimeTest(): a tool to measure running times more precisely |
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| 220 | + Demo for topology |
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| 221 | + counter.h: a tool to measure the number of steps of algorithms |
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| 222 | + Some useful scripts: check-compiler, check-integrity |
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| 223 | Improvements |
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| 224 | + Bfs/Dfs/Dijkstra |
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| 225 | * query functions for the next node/edge to be processed |
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| 226 | * visitor interface for dfs |
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| 227 | + topology.h: small functions for discovering graph topology |
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| 228 | * connected components, strongly connected components |
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| 229 | * bipartiteness testing |
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| 230 | + GUI: |
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| 231 | * NewMap window in MapSelector |
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| 232 | * Algorithm window and some algorithms (eg. Kruskal) added |
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| 233 | + LemonReader: |
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| 234 | * exception on non-existent files |
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| 235 | + LP interface: |
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| 236 | * (Dual)Expr::simplify(double tolerance) added |
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| 237 | * getDual() |
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| 238 | + GraphToEps: |
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| 239 | * negateY() opt |
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| 240 | * male/female node shapes :) |
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| 241 | * correct %%BoundingBox handling |
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| 242 | Backward incompatibilities/changed namings: |
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| 243 | * Access functions of TimeStamp/Timer |
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| 244 | * Undirected graph interface: findUEdge, ConUEdgeIt |
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| 245 | * pred -> predEdge renaming in search algorithms |
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| 246 | * SnapShot -> Snapshot in {List,Smart}Graph |
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| 247 | * NewEdgeSetAdaptor -> ListEdgeSet |
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| 248 | * LP: set{Obj,Row,Col}() -> {obj,row,col}() |
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| 249 | * "label" instead of "id" inside the LGF files |
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| 250 | * UndirGraph -> UGraph, UndirEdge* -> UEdge* |
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| 251 | * BipartiteGraph -> BpGraph, Lower/UpperNode* -> A/BNode* |
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| 252 | Bugfixes in |
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| 253 | * DFS |
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| 254 | * Preflow |
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| 255 | * x86_64 connected bugfixes (lemon_reader.h) |
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| 256 | * lp.h |
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| 257 | Other changes |
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| 258 | * Demos and benchmarks are not built by default now. They can be |
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| 259 | * enabled with the --enable-demo and --enable-benchmark |
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| 260 | * configure flags. |
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| 261 | * GCC 4.0.3 and ICC 9.0 compatibility |
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| 262 | |
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| 263 | 2005-08-27 Version 0.4 Released |
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| 264 | New features |
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| 265 | + More and better graph I/O functionalities |
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| 266 | + High level uniform LP solver interface to CPLEX and GLKP |
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| 267 | + New map adaptors |
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| 268 | + New convenience maps |
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| 269 | * IdMap, DescriptorMap |
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| 270 | * InDegMap, OutDegMap |
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| 271 | * XMap, YMap |
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| 272 | + Default graph maps are iterable |
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| 273 | + glemon: a graph editor |
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| 274 | + Some new demo codes added, the old ones got polished. |
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| 275 | Improvements |
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| 276 | + graphToEps() |
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| 277 | * Automatic node size and edge width scaling |
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| 278 | * Simple color palette tool (ColorSet) |
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| 279 | + Bfs/Dfs/Dijkstra |
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| 280 | * Step-by-step execution |
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| 281 | * Run from multiple sources |
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| 282 | * Used define stop condition |
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| 283 | * Improved "named parameters" |
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| 284 | + Preflow |
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| 285 | * Changed interface |
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| 286 | * Function type interface |
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| 287 | + ListGraph/SmartGraph |
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| 288 | * split() splits a node |
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| 289 | * SnapShot |
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| 290 | Changes |
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| 291 | * Changed namings: |
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| 292 | * Wrapper -> Adaptor |
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| 293 | * kruskalEdgeMap() -> kruskal() |
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| 294 | * kruskalEdgeMap_IteratorOut() -> kruskal() |
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| 295 | * BoundingBox<> |
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| 296 | * operator+=() -> add() |
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| 297 | + clear() |
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| 298 | * Better documentation |
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| 299 | * Several important bugfixes |
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| 300 | * Now LEMON should compile without warnings with |
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| 301 | * gcc 3.3, 3.4, 4.0 |
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| 302 | * Intel C++ Compiler v9.0 |
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| 303 | |
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| 304 | 2005-03-19 Version 0.3.1 Released |
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| 305 | This release fixes a compilation failure bug under cygwin. |
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| 306 | |
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| 307 | 2005-02-21 Version 0.3 released |
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| 308 | New features |
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| 309 | + Standardized LEMON exceptions |
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| 310 | + Undirected Graph |
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| 311 | + Standard graph file format, input and output classes for it |
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| 312 | + GraphToEps: A simple graph drawer |
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| 313 | Changes |
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| 314 | * Redesigned Graph infrastructures |
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| 315 | * head() -> target(), tail() -> source() |
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| 316 | * Some standard namings have changes: |
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| 317 | ValueType -> Value, |
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| 318 | KeyType -> Key, |
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| 319 | ReferenceType -> Reference, |
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| 320 | PointerType -> Pointer |
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| 321 | * Better documentation |
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| 322 | |
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| 323 | 2004-09-30 Version 0.2 released |
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