Dev/asolovev dbscan ext

.github/workflows/nightly-build.yml

@@ -20,6 +20,7 @@ name: Nightly-build
 # It is a dependency of uxlfoundation/scikit-learn-intelex's `CI` GitHub action
 
 on:
+  push:
   schedule:
     - cron: '0 21 * * *'
   pull_request:
@@ -49,7 +50,6 @@ env:
 jobs:
   build_lnx:
     name: oneDAL Linux nightly build
-    if: github.repository == 'uxlfoundation/oneDAL'
     runs-on: ubuntu-24.04
     timeout-minutes: 120
 
@@ -85,7 +85,6 @@ jobs:
 
   build_win:
     name: oneDAL Windows nightly build
-    if: github.repository == 'uxlfoundation/oneDAL'
     runs-on: windows-2025
     timeout-minutes: 180
 

cpp/daal/include/algorithms/dbscan/dbscan_types.h

@@ -54,7 +54,9 @@ const int undefined = -2;
  */
 enum Method
 {
-    defaultDense = 0 /*!< Default: performance-oriented method */
+    defaultDense = 0, /*!< Default: brute-force performance-oriented method */
+    kdTree       = 1, /*!< K-d tree method: accelerated epsilon-neighborhood search */
+    ballTree     = 2  /*!< Ball tree method: hypersphere-based spatial partitioning */
 };
 
 /**

cpp/daal/src/algorithms/dbscan/dbscan_ball_tree_batch_fpt_cpu.cpp

@@ -0,0 +1,37 @@
+/* file: dbscan_ball_tree_batch_fpt_cpu.cpp */
+/*******************************************************************************
+* Copyright contributors to the oneDAL project
+*
+* 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.
+*******************************************************************************/
+
+#include "src/algorithms/dbscan/dbscan_ball_tree_batch_impl.i"
+#include "services/daal_defines.h"
+
+using namespace daal::internal;
+
+namespace daal
+{
+namespace algorithms
+{
+namespace dbscan
+{
+namespace internal
+{
+
+template class DAAL_EXPORT DBSCANBatchKernel<DAAL_FPTYPE, ballTree, DAAL_CPU>;
+
+} // namespace internal
+} // namespace dbscan
+} // namespace algorithms
+} // namespace daal