Benchmark sorting components + Tridesclous2 improvement

src/spikeinterface/comparison/groundtruthstudy.py

@@ -167,6 +167,8 @@ def remove_sorting(self, key):
         sorting_folder = self.folder / "sortings" / self.key_to_str(key)
         log_file = self.folder / "sortings" / "run_logs" / f"{self.key_to_str(key)}.json"
         comparison_file = self.folder / "comparisons" / self.key_to_str(key)
+        self.sortings[key] = None
+        self.comparisons[key] = None
         if sorting_folder.exists():
             shutil.rmtree(sorting_folder)
         for f in (log_file, comparison_file):
@@ -381,6 +383,7 @@ def get_performance_by_unit(self, case_keys=None):
 
         perf_by_unit = pd.concat(perf_by_unit)
         perf_by_unit = perf_by_unit.set_index(self.levels)
+        perf_by_unit = perf_by_unit.sort_index()
         return perf_by_unit
 
     def get_count_units(self, case_keys=None, well_detected_score=None, redundant_score=None, overmerged_score=None):

src/spikeinterface/core/node_pipeline.py

@@ -255,7 +255,7 @@ def compute(self, traces, start_frame, end_frame, segment_index, max_margin):
         return (local_peaks,)
 
 
-def sorting_to_peaks(sorting, extremum_channel_inds, dtype):
+def sorting_to_peaks(sorting, extremum_channel_inds, dtype=spike_peak_dtype):
     spikes = sorting.to_spike_vector()
     peaks = np.zeros(spikes.size, dtype=dtype)
     peaks["sample_index"] = spikes["sample_index"]

src/spikeinterface/core/sortinganalyzer.py

@@ -330,7 +330,8 @@ def create_binary_folder(cls, folder, sorting, recording, sparsity, return_scale
             json.dump(check_json(info), f, indent=4)
 
         # save a copy of the sorting
-        NumpyFolderSorting.write_sorting(sorting, folder / "sorting")
+        # NumpyFolderSorting.write_sorting(sorting, folder / "sorting")
+        sorting.save(folder=folder / "sorting")
 
         # save recording and sorting provenance
         if recording.check_serializability("json"):

src/spikeinterface/generation/drifting_generator.py

@@ -97,7 +97,7 @@ def make_one_displacement_vector(
     start_drift_index = int(t_start_drift * displacement_sampling_frequency)
     end_drift_index = int(t_end_drift * displacement_sampling_frequency)
 
-    num_samples = int(displacement_sampling_frequency * duration)
+    num_samples = int(np.ceil(displacement_sampling_frequency * duration))
     displacement_vector = np.zeros(num_samples, dtype="float32")
 
     if drift_mode == "zigzag":
@@ -286,6 +286,7 @@ def generate_drifting_recording(
     ),
     generate_sorting_kwargs=dict(firing_rates=(2.0, 8.0), refractory_period_ms=4.0),
     generate_noise_kwargs=dict(noise_levels=(12.0, 15.0), spatial_decay=25.0),
+    more_outputs=False,
     seed=None,
 ):
     """
@@ -314,6 +315,8 @@ def generate_drifting_recording(
         Parameters given to generate_sorting().
     generate_noise_kwargs: dict
         Parameters given to generate_noise().
+    more_outputs: bool, default False
+        Return optionaly a dict with more variables.
     seed: None ot int
         A unique seed for all steps.
 
@@ -326,7 +329,14 @@ def generate_drifting_recording(
     sorting: Sorting
         The ground trith soring object.
         Same for both recordings.
-
+    more_infos:
+        If more_outputs=True, then return also a dict that contain various information like:
+            * displacement_vectors
+            * displacement_sampling_frequency
+            * unit_locations
+            * displacement_unit_factor
+            * unit_displacements
+        This can be helpfull for motion benchmark.
     """
 
     rng = np.random.default_rng(seed=seed)
@@ -356,6 +366,14 @@ def generate_drifting_recording(
         generate_displacement_vector(duration, unit_locations[:, :2], seed=seed, **generate_displacement_vector_kwargs)
     )
 
+    # unit_displacements is the sum of all discplacements (times, units, direction_x_y)
+    unit_displacements = np.zeros((displacement_vectors.shape[0], num_units, 2))
+    for direction in (0, 1):
+        # x and y
+        for i in range(displacement_vectors.shape[2]):
+            m = displacement_vectors[:, direction, i][:, np.newaxis] * displacement_unit_factor[:, i][np.newaxis, :]
+            unit_displacements[:, :, direction] += m
+
     # unit_params need to be fixed before the displacement steps
     generate_templates_kwargs = generate_templates_kwargs.copy()
     unit_params = _ensure_unit_params(generate_templates_kwargs.get("unit_params", {}), num_units, seed)
@@ -400,6 +418,8 @@ def generate_drifting_recording(
         seed=seed,
     )
 
+    sorting.set_property("gt_unit_locations", unit_locations)
+
     ## Important precompute displacement do not work on border and so do not work for tetrode
     # here we bypass the interpolation and regenrate templates at severals positions.
     ## drifting_templates.precompute_displacements(displacements_steps)
@@ -437,4 +457,14 @@ def generate_drifting_recording(
         amplitude_factor=None,
     )
 
-    return static_recording, drifting_recording, sorting
+    if more_outputs:
+        more_infos = dict(
+            displacement_vectors=displacement_vectors,
+            displacement_sampling_frequency=displacement_sampling_frequency,
+            unit_locations=unit_locations,
+            displacement_unit_factor=displacement_unit_factor,
+            unit_displacements=unit_displacements,
+        )
+        return static_recording, drifting_recording, sorting, more_infos
+    else:
+        return static_recording, drifting_recording, sorting

src/spikeinterface/sorters/internal/tridesclous2.py

@@ -33,6 +33,7 @@ class Tridesclous2Sorter(ComponentsBasedSorter):
 
     _default_params = {
         "apply_preprocessing": True,
+        "apply_motion_correction": False,
         "cache_preprocessing": {"mode": "memory", "memory_limit": 0.5, "delete_cache": True},
         "waveforms": {
             "ms_before": 0.5,
@@ -52,10 +53,12 @@ class Tridesclous2Sorter(ComponentsBasedSorter):
             "ms_before": 2.0,
             "ms_after": 3.0,
             "max_spikes_per_unit": 400,
+            "sparsity_threshold": 2.0,
             # "peak_shift_ms": 0.2,
         },
         # "matching": {"method": "tridesclous", "method_kwargs": {"peak_shift_ms": 0.2, "radius_um": 100.0}},
-        "matching": {"method": "circus-omp-svd", "method_kwargs": {}},
+        # "matching": {"method": "circus-omp-svd", "method_kwargs": {}},
+        "matching": {"method": "wobble", "method_kwargs": {}},
         "job_kwargs": {"n_jobs": -1},
         "save_array": True,
     }
@@ -102,6 +105,8 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
         from spikeinterface.sortingcomponents.clustering.split import split_clusters
         from spikeinterface.sortingcomponents.clustering.merge import merge_clusters
         from spikeinterface.sortingcomponents.clustering.tools import compute_template_from_sparse
+        from spikeinterface.sortingcomponents.clustering.main import find_cluster_from_peaks
+        from spikeinterface.sortingcomponents.tools import remove_empty_templates
 
         from sklearn.decomposition import TruncatedSVD
 
@@ -115,10 +120,9 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
         # preprocessing
         if params["apply_preprocessing"]:
             recording = bandpass_filter(recording_raw, **params["filtering"])
-            # TODO what is the best about zscore>common_reference or the reverse
             recording = common_reference(recording)
             recording = zscore(recording, dtype="float32")
-            # recording = whiten(recording, dtype="float32")
+            recording = whiten(recording, dtype="float32")
 
             # used only if "folder" or "zarr"
             cache_folder = sorter_output_folder / "cache_preprocessing"
@@ -148,152 +152,22 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
         if verbose:
             print("We kept %d peaks for clustering" % len(peaks))
 
-        ms_before = params["waveforms"]["ms_before"]
-        ms_after = params["waveforms"]["ms_after"]
+        clustering_kwargs = {}
+        clustering_kwargs["folder"] = sorter_output_folder
+        clustering_kwargs["waveforms"] = params["waveforms"].copy()
+        clustering_kwargs["clustering"] = params["clustering"].copy()
 
-        # SVD for time compression
-        few_peaks = select_peaks(peaks, method="uniform", n_peaks=5000)
-        few_wfs = extract_waveform_at_max_channel(
-            recording, few_peaks, ms_before=ms_before, ms_after=ms_after, **job_kwargs
+        labels_set, post_clean_label, extra_out = find_cluster_from_peaks(
+            recording, peaks, method="tdc_clustering", method_kwargs=clustering_kwargs, extra_outputs=True, **job_kwargs
         )
-
-        wfs = few_wfs[:, :, 0]
-        tsvd = TruncatedSVD(params["svd"]["n_components"])
-        tsvd.fit(wfs)
-
-        model_folder = sorter_output_folder / "tsvd_model"
-
-        model_folder.mkdir(exist_ok=True)
-        with open(model_folder / "pca_model.pkl", "wb") as f:
-            pickle.dump(tsvd, f)
-
-        model_params = {
-            "ms_before": ms_before,
-            "ms_after": ms_after,
-            "sampling_frequency": float(sampling_frequency),
-        }
-        with open(model_folder / "params.json", "w") as f:
-            json.dump(model_params, f)
-
-        # features
-
-        features_folder = sorter_output_folder / "features"
-        node0 = PeakRetriever(recording, peaks)
-
-        radius_um = params["waveforms"]["radius_um"]
-        node1 = ExtractSparseWaveforms(
-            recording,
-            parents=[node0],
-            return_output=True,
-            ms_before=ms_before,
-            ms_after=ms_after,
-            radius_um=radius_um,
-        )
-
-        model_folder_path = sorter_output_folder / "tsvd_model"
-
-        node2 = TemporalPCAProjection(
-            recording, parents=[node0, node1], return_output=True, model_folder_path=model_folder_path
-        )
-
-        pipeline_nodes = [node0, node1, node2]
-
-        output = run_node_pipeline(
-            recording,
-            pipeline_nodes,
-            job_kwargs,
-            gather_mode="npy",
-            gather_kwargs=dict(exist_ok=True),
-            folder=features_folder,
-            names=["sparse_wfs", "sparse_tsvd"],
-        )
-
-        # TODO make this generic in GatherNPY ???
-        sparse_mask = node1.neighbours_mask
-        np.save(features_folder / "sparse_mask.npy", sparse_mask)
-        np.save(features_folder / "peaks.npy", peaks)
-
-        # Clustering: channel index > split > merge
-        split_radius_um = params["clustering"]["split_radius_um"]
-        neighbours_mask = get_channel_distances(recording) < split_radius_um
-
-        original_labels = peaks["channel_index"]
-
-        min_cluster_size = 50
-
-        post_split_label, split_count = split_clusters(
-            original_labels,
-            recording,
-            features_folder,
-            method="local_feature_clustering",
-            method_kwargs=dict(
-                # clusterer="hdbscan",
-                clusterer="isocut5",
-                feature_name="sparse_tsvd",
-                # feature_name="sparse_wfs",
-                neighbours_mask=neighbours_mask,
-                waveforms_sparse_mask=sparse_mask,
-                min_size_split=min_cluster_size,
-                clusterer_kwargs={"min_cluster_size": min_cluster_size},
-                n_pca_features=3,
-            ),
-            recursive=True,
-            recursive_depth=3,
-            returns_split_count=True,
-            **job_kwargs,
-        )
-
-        merge_radius_um = params["clustering"]["merge_radius_um"]
-        threshold_diff = params["clustering"]["threshold_diff"]
-
-        post_merge_label, peak_shifts = merge_clusters(
-            peaks,
-            post_split_label,
-            recording,
-            features_folder,
-            radius_um=merge_radius_um,
-            # method="project_distribution",
-            # method_kwargs=dict(
-            #     waveforms_sparse_mask=sparse_mask,
-            #     feature_name="sparse_wfs",
-            #     projection="centroid",
-            #     criteria="distrib_overlap",
-            #     threshold_overlap=0.3,
-            #     min_cluster_size=min_cluster_size + 1,
-            #     num_shift=5,
-            # ),
-            method="normalized_template_diff",
-            method_kwargs=dict(
-                waveforms_sparse_mask=sparse_mask,
-                threshold_diff=threshold_diff,
-                min_cluster_size=min_cluster_size + 1,
-                num_shift=5,
-            ),
-            **job_kwargs,
-        )
-
-        # sparse_wfs = np.load(features_folder / "sparse_wfs.npy", mmap_mode="r")
-
+        peak_shifts = extra_out["peak_shifts"]
         new_peaks = peaks.copy()
         new_peaks["sample_index"] -= peak_shifts
 
-        # clean very small cluster before peeler
-        post_clean_label = post_merge_label.copy()
-
-        minimum_cluster_size = 25
-        labels_set, count = np.unique(post_clean_label, return_counts=True)
-        to_remove = labels_set[count < minimum_cluster_size]
-        mask = np.isin(post_clean_label, to_remove)
-        post_clean_label[mask] = -1
-
-        # final label sets
-        labels_set = np.unique(post_clean_label)
-        labels_set = labels_set[labels_set >= 0]
-
         mask = post_clean_label >= 0
         sorting_pre_peeler = NumpySorting.from_times_labels(
             new_peaks["sample_index"][mask],
-            post_merge_label[mask],
+            post_clean_label[mask],
             sampling_frequency,
             unit_ids=labels_set,
         )
@@ -303,6 +177,7 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
 
         nbefore = int(params["templates"]["ms_before"] * sampling_frequency / 1000.0)
         nafter = int(params["templates"]["ms_after"] * sampling_frequency / 1000.0)
+        sparsity_threshold = params["templates"]["sparsity_threshold"]
         templates_array = estimate_templates_with_accumulator(
             recording_w,
             sorting_pre_peeler.to_spike_vector(),
@@ -320,8 +195,9 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
         )
         # TODO : try other methods for sparsity
         # sparsity = compute_sparsity(templates_dense, method="radius", radius_um=120.)
-        sparsity = compute_sparsity(templates_dense, noise_levels=noise_levels, threshold=1.0)
+        sparsity = compute_sparsity(templates_dense, noise_levels=noise_levels, threshold=sparsity_threshold)
         templates = templates_dense.to_sparse(sparsity)
+        templates = remove_empty_templates(templates)
 
         # snrs = compute_snrs(we, peak_sign=params["detection"]["peak_sign"], peak_mode="extremum")
         # print(snrs)
@@ -350,12 +226,12 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
         # )
         # )
 
-        if matching_method == "circus-omp-svd":
-            job_kwargs = job_kwargs.copy()
-            for value in ["chunk_size", "chunk_memory", "total_memory", "chunk_duration"]:
-                if value in job_kwargs:
-                    job_kwargs.pop(value)
-            job_kwargs["chunk_duration"] = "100ms"
+        # if matching_method == "circus-omp-svd":
+        #     job_kwargs = job_kwargs.copy()
+        #     for value in ["chunk_size", "chunk_memory", "total_memory", "chunk_duration"]:
+        #         if value in job_kwargs:
+        #             job_kwargs.pop(value)
+        #     job_kwargs["chunk_duration"] = "100ms"
 
         spikes = find_spikes_from_templates(
             recording_w, method=matching_method, method_kwargs=matching_params, **job_kwargs
@@ -366,9 +242,9 @@ def _run_from_folder(cls, sorter_output_folder, params, verbose):
 
             np.save(sorter_output_folder / "noise_levels.npy", noise_levels)
             np.save(sorter_output_folder / "all_peaks.npy", all_peaks)
-            np.save(sorter_output_folder / "post_split_label.npy", post_split_label)
-            np.save(sorter_output_folder / "split_count.npy", split_count)
-            np.save(sorter_output_folder / "post_merge_label.npy", post_merge_label)
+            # np.save(sorter_output_folder / "post_split_label.npy", post_split_label)
+            # np.save(sorter_output_folder / "split_count.npy", split_count)
+            # np.save(sorter_output_folder / "post_merge_label.npy", post_merge_label)
             np.save(sorter_output_folder / "spikes.npy", spikes)
 
         final_spikes = np.zeros(spikes.size, dtype=minimum_spike_dtype)

src/spikeinterface/sorters/tests/test_launcher.py

@@ -176,11 +176,11 @@ def test_run_sorter_by_property():
     setup_module()
     job_list = get_job_list()
 
-    test_run_sorter_jobs_loop(job_list)
+    # test_run_sorter_jobs_loop(job_list)
     # test_run_sorter_jobs_joblib(job_list)
     # test_run_sorter_jobs_processpoolexecutor(job_list)
     # test_run_sorter_jobs_multiprocessing(job_list)
     # test_run_sorter_jobs_dask(job_list)
     # test_run_sorter_jobs_slurm(job_list)
 
-    # test_run_sorter_by_property()
+    test_run_sorter_by_property()