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6 changes: 3 additions & 3 deletions vizier/_src/benchmarks/experimenters/hpob/handler.py
Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,7 @@ def _cached_load_data(cls,
@classmethod
@functools.lru_cache(maxsize=128)
def _cached_surrogates_stats(cls, surrogates_dir: str):
surrogates_file = surrogates_dir + "summary-stats.json"
surrogates_file = f"{surrogates_dir}summary-stats.json"
if (Exists(surrogates_file) and not IsDir(surrogates_file)):
with Open(surrogates_file, "rt") as f:
surrogates_stats = json.load(f)
Expand Down Expand Up @@ -262,9 +262,9 @@ def evaluate_continuous(self,
assert seed != None, ("Provide a valid initialization. Valid options are: "
"test0, test1, test2, test3, test4.")

surrogate_name = "surrogate-" + search_space_id + "-" + dataset_id
surrogate_name = f"surrogate-{search_space_id}-{dataset_id}"
bst_surrogate = xgb.Booster()
bst_surrogate.load_model(self.surrogates_dir + surrogate_name + ".json")
bst_surrogate.load_model(f"{self.surrogates_dir}{surrogate_name}.json")

n_initial_evaluations = 5
X = np.array(self.meta_test_data[search_space_id][dataset_id]["X"])
Expand Down