diff --git a/cpp/include/nvtext/edit_distance.hpp b/cpp/include/nvtext/edit_distance.hpp index 723ba310a1e..dca590baebf 100644 --- a/cpp/include/nvtext/edit_distance.hpp +++ b/cpp/include/nvtext/edit_distance.hpp @@ -57,7 +57,7 @@ namespace CUDF_EXPORT nvtext { * @param targets Strings to compute edit distance against `input` * @param stream CUDA stream used for device memory operations and kernel launches * @param mr Device memory resource used to allocate the returned column's device memory - * @return New strings columns of with replaced strings + * @return New lists column of edit distance values */ std::unique_ptr edit_distance( cudf::strings_column_view const& input, diff --git a/docs/cudf/source/user_guide/api_docs/pylibcudf/index.rst b/docs/cudf/source/user_guide/api_docs/pylibcudf/index.rst index e21536e2e97..052479d6720 100644 --- a/docs/cudf/source/user_guide/api_docs/pylibcudf/index.rst +++ b/docs/cudf/source/user_guide/api_docs/pylibcudf/index.rst @@ -49,3 +49,4 @@ This page provides API documentation for pylibcudf. io/index.rst strings/index.rst + nvtext/index.rst diff --git a/docs/cudf/source/user_guide/api_docs/pylibcudf/nvtext/edit_distance.rst b/docs/cudf/source/user_guide/api_docs/pylibcudf/nvtext/edit_distance.rst new file mode 100644 index 00000000000..abb45e426a8 --- /dev/null +++ b/docs/cudf/source/user_guide/api_docs/pylibcudf/nvtext/edit_distance.rst @@ -0,0 +1,6 @@ +============= +edit_distance +============= + +.. automodule:: pylibcudf.nvtext.edit_distance + :members: diff --git a/docs/cudf/source/user_guide/api_docs/pylibcudf/nvtext/index.rst b/docs/cudf/source/user_guide/api_docs/pylibcudf/nvtext/index.rst new file mode 100644 index 00000000000..b5cd5ee42c3 --- /dev/null +++ b/docs/cudf/source/user_guide/api_docs/pylibcudf/nvtext/index.rst @@ -0,0 +1,7 @@ +nvtext +====== + +.. toctree:: + :maxdepth: 1 + + edit_distance diff --git a/python/cudf/cudf/_lib/nvtext/edit_distance.pyx b/python/cudf/cudf/_lib/nvtext/edit_distance.pyx index e3c2273345a..3dd99c42d76 100644 --- a/python/cudf/cudf/_lib/nvtext/edit_distance.pyx +++ b/python/cudf/cudf/_lib/nvtext/edit_distance.pyx @@ -2,37 +2,23 @@ from cudf.core.buffer import acquire_spill_lock -from libcpp.memory cimport unique_ptr -from libcpp.utility cimport move - -from pylibcudf.libcudf.column.column cimport column -from pylibcudf.libcudf.column.column_view cimport column_view -from pylibcudf.libcudf.nvtext.edit_distance cimport ( - edit_distance as cpp_edit_distance, - edit_distance_matrix as cpp_edit_distance_matrix, -) +from pylibcudf cimport nvtext from cudf._lib.column cimport Column @acquire_spill_lock() def edit_distance(Column strings, Column targets): - cdef column_view c_strings = strings.view() - cdef column_view c_targets = targets.view() - cdef unique_ptr[column] c_result - - with nogil: - c_result = move(cpp_edit_distance(c_strings, c_targets)) - - return Column.from_unique_ptr(move(c_result)) + result = nvtext.edit_distance.edit_distance( + strings.to_pylibcudf(mode="read"), + targets.to_pylibcudf(mode="read") + ) + return Column.from_pylibcudf(result) @acquire_spill_lock() def edit_distance_matrix(Column strings): - cdef column_view c_strings = strings.view() - cdef unique_ptr[column] c_result - - with nogil: - c_result = move(cpp_edit_distance_matrix(c_strings)) - - return Column.from_unique_ptr(move(c_result)) + result = nvtext.edit_distance.edit_distance_matrix( + strings.to_pylibcudf(mode="read") + ) + return Column.from_pylibcudf(result) diff --git a/python/pylibcudf/pylibcudf/CMakeLists.txt b/python/pylibcudf/pylibcudf/CMakeLists.txt index a7cb66d7b16..1d72eacac12 100644 --- a/python/pylibcudf/pylibcudf/CMakeLists.txt +++ b/python/pylibcudf/pylibcudf/CMakeLists.txt @@ -66,3 +66,4 @@ target_link_libraries(pylibcudf_interop PUBLIC nanoarrow) add_subdirectory(libcudf) add_subdirectory(strings) add_subdirectory(io) +add_subdirectory(nvtext) diff --git a/python/pylibcudf/pylibcudf/__init__.pxd b/python/pylibcudf/pylibcudf/__init__.pxd index a384edd456d..b98b37fe0fd 100644 --- a/python/pylibcudf/pylibcudf/__init__.pxd +++ b/python/pylibcudf/pylibcudf/__init__.pxd @@ -17,6 +17,7 @@ from . cimport ( lists, merge, null_mask, + nvtext, partitioning, quantiles, reduce, @@ -78,4 +79,5 @@ __all__ = [ "transpose", "types", "unary", + "nvtext", ] diff --git a/python/pylibcudf/pylibcudf/__init__.py b/python/pylibcudf/pylibcudf/__init__.py index 2a5365e8fad..304f27be340 100644 --- a/python/pylibcudf/pylibcudf/__init__.py +++ b/python/pylibcudf/pylibcudf/__init__.py @@ -28,6 +28,7 @@ lists, merge, null_mask, + nvtext, partitioning, quantiles, reduce, @@ -92,4 +93,5 @@ "transpose", "types", "unary", + "nvtext", ] diff --git a/python/pylibcudf/pylibcudf/nvtext/CMakeLists.txt b/python/pylibcudf/pylibcudf/nvtext/CMakeLists.txt new file mode 100644 index 00000000000..ebe1fda1f12 --- /dev/null +++ b/python/pylibcudf/pylibcudf/nvtext/CMakeLists.txt @@ -0,0 +1,22 @@ +# ============================================================================= +# Copyright (c) 2024, NVIDIA CORPORATION. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except +# in compliance with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software distributed under the License +# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express +# or implied. See the License for the specific language governing permissions and limitations under +# the License. +# ============================================================================= + +set(cython_sources edit_distance.pyx) + +set(linked_libraries cudf::cudf) +rapids_cython_create_modules( + CXX + SOURCE_FILES "${cython_sources}" + LINKED_LIBRARIES "${linked_libraries}" MODULE_PREFIX pylibcudf_nvtext_ ASSOCIATED_TARGETS cudf +) diff --git a/python/pylibcudf/pylibcudf/nvtext/__init__.pxd b/python/pylibcudf/pylibcudf/nvtext/__init__.pxd new file mode 100644 index 00000000000..82f7c425b1d --- /dev/null +++ b/python/pylibcudf/pylibcudf/nvtext/__init__.pxd @@ -0,0 +1,7 @@ +# Copyright (c) 2024, NVIDIA CORPORATION. + +from . cimport edit_distance + +__all__ = [ + "edit_distance", +] diff --git a/python/pylibcudf/pylibcudf/nvtext/__init__.py b/python/pylibcudf/pylibcudf/nvtext/__init__.py new file mode 100644 index 00000000000..986652a241f --- /dev/null +++ b/python/pylibcudf/pylibcudf/nvtext/__init__.py @@ -0,0 +1,7 @@ +# Copyright (c) 2024, NVIDIA CORPORATION. + +from . import edit_distance + +__all__ = [ + "edit_distance", +] diff --git a/python/pylibcudf/pylibcudf/nvtext/edit_distance.pxd b/python/pylibcudf/pylibcudf/nvtext/edit_distance.pxd new file mode 100644 index 00000000000..446b95afabb --- /dev/null +++ b/python/pylibcudf/pylibcudf/nvtext/edit_distance.pxd @@ -0,0 +1,8 @@ +# Copyright (c) 2024, NVIDIA CORPORATION. + +from pylibcudf.column cimport Column + + +cpdef Column edit_distance(Column input, Column targets) + +cpdef Column edit_distance_matrix(Column input) diff --git a/python/pylibcudf/pylibcudf/nvtext/edit_distance.pyx b/python/pylibcudf/pylibcudf/nvtext/edit_distance.pyx new file mode 100644 index 00000000000..fc98ccbc50c --- /dev/null +++ b/python/pylibcudf/pylibcudf/nvtext/edit_distance.pyx @@ -0,0 +1,63 @@ +# Copyright (c) 2024, NVIDIA CORPORATION. + +from libcpp.memory cimport unique_ptr +from libcpp.utility cimport move +from pylibcudf.libcudf.column.column cimport column +from pylibcudf.libcudf.column.column_view cimport column_view +from pylibcudf.libcudf.nvtext.edit_distance cimport ( + edit_distance as cpp_edit_distance, + edit_distance_matrix as cpp_edit_distance_matrix, +) + + +cpdef Column edit_distance(Column input, Column targets): + """ + Returns the edit distance between individual strings in two strings columns + + For details, see :cpp:func:`edit_distance` + + Parameters + ---------- + input : Column + Input strings + targets : Column + Strings to compute edit distance against + + Returns + ------- + Column + New column of edit distance values + """ + cdef column_view c_strings = input.view() + cdef column_view c_targets = targets.view() + cdef unique_ptr[column] c_result + + with nogil: + c_result = move(cpp_edit_distance(c_strings, c_targets)) + + return Column.from_libcudf(move(c_result)) + + +cpdef Column edit_distance_matrix(Column input): + """ + Returns the edit distance between all strings in the input strings column + + For details, see :cpp:func:`edit_distance_matrix` + + Parameters + ---------- + input : Column + Input strings + + Returns + ------- + Column + New column of edit distance values + """ + cdef column_view c_strings = input.view() + cdef unique_ptr[column] c_result + + with nogil: + c_result = move(cpp_edit_distance_matrix(c_strings)) + + return Column.from_libcudf(move(c_result)) diff --git a/python/pylibcudf/pylibcudf/tests/test_nvtext_edit_distance.py b/python/pylibcudf/pylibcudf/tests/test_nvtext_edit_distance.py new file mode 100644 index 00000000000..7d93c471cc4 --- /dev/null +++ b/python/pylibcudf/pylibcudf/tests/test_nvtext_edit_distance.py @@ -0,0 +1,34 @@ +# Copyright (c) 2024, NVIDIA CORPORATION. + +import pyarrow as pa +import pylibcudf as plc +import pytest +from utils import assert_column_eq + + +@pytest.fixture(scope="module") +def edit_distance_data(): + arr1 = ["hallo", "goodbye", "world"] + arr2 = ["hello", "", "world"] + return pa.array(arr1), pa.array(arr2) + + +def test_edit_distance(edit_distance_data): + input_col, targets = edit_distance_data + result = plc.nvtext.edit_distance.edit_distance( + plc.interop.from_arrow(input_col), + plc.interop.from_arrow(targets), + ) + expected = pa.array([1, 7, 0], type=pa.int32()) + assert_column_eq(result, expected) + + +def test_edit_distance_matrix(edit_distance_data): + input_col, _ = edit_distance_data + result = plc.nvtext.edit_distance.edit_distance_matrix( + plc.interop.from_arrow(input_col) + ) + expected = pa.array( + [[0, 7, 4], [7, 0, 6], [4, 6, 0]], type=pa.list_(pa.int32()) + ) + assert_column_eq(expected, result)