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Changelog {#changelog}

[TOC]

This changelog contains a non-exhaustive list of new features and notable bug-fixes (not all bug-fixes will be listed).



DTWC v1.0.0

New features

  • HiGHS solver is added for open-source alternative to Gurobi (which is now not necessary for compilation and can be enabled by necessary flags).
  • Command line interface is added.
  • Documentation is improved (Doxygen website).

Notable Bug-fixes

  • Sakoe-Chiba band implementation is now more accurate.

API changes

  • Replaced VecMatrix<data_t> class with arma::Mat<data_t>.

Dependency updates:

  • Required C++ standard is reduced from C++20 to C++17 as it was causing call to consteval function 'std::chrono::hh_mm_ss::_S_fractional_width' is not a constant expression error for clang versions older than clang-15.
  • OpenMP for parallelisation is adopted as Apple-clang does not support std::execution.

Developer updates:

  • The software is now being tested via Catch2 library.
  • Dependabot is added.
  • CURRENT_ROOT_FOLDER and DTWC_ROOT_FOLDER are seperated as DTW-C++ library can be included by other libraries.



DTWC v0.3.0

New features

  • UCR_test_2018 data integration for benchmarking.

Notable Bug-fixes

  • N/A

API changes

  • DataLoader class is added for data reading.
  • settings::resultsPath is changed with out_folder member variable to have more flexibility.
  • get_name function added to remove settings::writeAsFileNames repetition)
  • std::filesystem::path operator+ was unnecessary and removed.



DTWC v0.2.0

A user interface is created for other people's use.

New features / updates

  • Scores file with silhouette score is added.
  • dtwFull_L (L = light) is added for reducing memory requirements substantially.

API changes

  • Problem class for a better interface.
  • mip.hpp and mip.cpp files are created to contain MIP functions.

Notable Bug-fixes

  • Gurobi better path finding in macOS.
  • TBB could not be used in macOS so it is now option with alternative thread-based parallelisation.
  • Time was showing wrong on macOS with std::clock. Therefore, moved to chrono library.

Formatting:

  • Include a clang-format file.

Dependency updates

  • Required C++ standard is upgraded from C++17 to C++20.



DTWC v0.1.0

This is the initial release of DTWC.

Features

  • Iterative algortihms for K-means and K-medoids
  • Mixed-integer programming solution support via YALMIP/MATLAB.
  • Support for *.csv files generated by Pandas.

Dependencies

  • A compiler with C++17 support.
  • We require at least CMake 3.16.