From 98d4da250b44bbdd2261d9f13625b24ec891f304 Mon Sep 17 00:00:00 2001
From: Jinwoo Bae <bbae7050@gmail.com>
Date: Tue, 7 Apr 2026 14:08:50 -0700
Subject: [PATCH 1/5] Add Korean TN post-processing rules for particle
 agreement and month handling

Signed-off-by: Jinwoo Bae <bbae7050@gmail.com>
---
 .../text_normalization/ko/taggers/date.py     | 12 ++++
 .../ko/verbalizers/post_processing.py         | 68 +++++++++++++++++++
 .../text_normalization/normalize.py           |  6 +-
 3 files changed, 85 insertions(+), 1 deletion(-)
 create mode 100644 nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py

diff --git a/nemo_text_processing/text_normalization/ko/taggers/date.py b/nemo_text_processing/text_normalization/ko/taggers/date.py
index 4f2da5702..3c89e104b 100644
--- a/nemo_text_processing/text_normalization/ko/taggers/date.py
+++ b/nemo_text_processing/text_normalization/ko/taggers/date.py
@@ -249,6 +249,17 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
             + pynutil.insert("\"")
         )
 
+        month_josa = pynini.union("에", "은", "는", "에는").optimize()
+
+        individual_month_component_with_josa = (
+            pynutil.insert('month: "')
+            + month_cardinal
+            + pynutil.delete("월")
+            + pynutil.insert("월")
+            + pynini.closure(month_josa, 0, 1)
+            + pynutil.insert('"')
+        ).optimize()
+        
         individual_day_component = (
             pynutil.insert("day: \"")
             + cardinal_lz
@@ -272,6 +283,7 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
             day_and_weekday_component
             | month_and_weekday_component
             | individual_year_component
+            | individual_month_component_with_josa
             | individual_month_component
             | individual_day_component
             | week_component
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py b/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
new file mode 100644
index 000000000..b363040fd
--- /dev/null
+++ b/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
@@ -0,0 +1,68 @@
+# Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
+#
+# 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.
+
+import os
+import pynini
+from pynini.lib import pynutil
+
+from nemo_text_processing.text_normalization.ko.graph_utils import NEMO_SIGMA, NEMO_SPACE, generator_main
+from nemo_text_processing.utils.logging import logger
+
+
+class PostProcessingFst:
+    def __init__(self, cache_dir: str = None, overwrite_cache: bool = False):
+        far_file = None
+        if cache_dir is not None and cache_dir != "None":
+            os.makedirs(cache_dir, exist_ok=True)
+            far_file = os.path.join(cache_dir, "ko_tn_post_processing.far")
+
+        if not overwrite_cache and far_file and os.path.exists(far_file):
+            self.fst = pynini.Far(far_file, mode="r")["post_process_graph"]
+            logger.info(f"Post processing graph was restored from {far_file}.")
+        else:
+            self.fst = self.get_postprocess_graph()
+            if far_file:
+                generator_main(far_file, {"post_process_graph": self.fst})
+
+    def get_postprocess_graph(self):
+        delete_space = pynutil.delete(NEMO_SPACE)
+
+        vowel_final = pynini.union(
+            "아", "야", "어", "여", "오", "요", "우", "유", "이", "애", "에",
+            "사", "오", "구"
+        )
+
+        rule_i_to_ga = pynini.cdrewrite(
+            delete_space + pynini.cross("이 ", "가 "),
+            vowel_final,
+            "",
+            NEMO_SIGMA,
+        )
+
+        rule_eun_to_neun = pynini.cdrewrite(
+            delete_space + pynini.cross("은 ", "는 "),
+            vowel_final,
+            "",
+            NEMO_SIGMA,
+        )
+
+        rule_eul_to_reul = pynini.cdrewrite(
+            delete_space + pynini.cross("을 ", "를 "),
+            vowel_final,
+            "",
+            NEMO_SIGMA,
+        )
+
+        graph = rule_i_to_ga @ rule_eun_to_neun @ rule_eul_to_reul
+        return graph.optimize()
\ No newline at end of file
diff --git a/nemo_text_processing/text_normalization/normalize.py b/nemo_text_processing/text_normalization/normalize.py
index 5e2f9ebb5..5930f49bd 100644
--- a/nemo_text_processing/text_normalization/normalize.py
+++ b/nemo_text_processing/text_normalization/normalize.py
@@ -187,7 +187,11 @@ def __init__(
                 self.post_processor = PostProcessingFst(cache_dir=cache_dir, overwrite_cache=overwrite_cache)
         elif lang == 'ko':
             from nemo_text_processing.text_normalization.ko.taggers.tokenize_and_classify import ClassifyFst
+            from nemo_text_processing.text_normalization.ko.verbalizers.post_processing import PostProcessingFst
             from nemo_text_processing.text_normalization.ko.verbalizers.verbalize_final import VerbalizeFinalFst
+            
+            if post_process:
+                self.post_processor = PostProcessingFst(cache_dir=cache_dir, overwrite_cache=overwrite_cache)
         else:
             raise NotImplementedError(f"Language {lang} has not been supported yet.")
 
@@ -388,7 +392,7 @@ def normalize(
                 return text
         output = SPACE_DUP.sub(' ', output[1:])
 
-        if self.lang in ["en", "hi", "vi"] and hasattr(self, 'post_processor') and self.post_processor is not None:
+        if self.lang in ["en", "hi", "vi", "ko"] and hasattr(self, 'post_processor') and self.post_processor is not None:
             output = self.post_process(output)
 
         if punct_post_process:

From 19619a9b1d6906318985fcbfe0b549a5102cf85a Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Tue, 7 Apr 2026 21:14:31 +0000
Subject: [PATCH 2/5] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 .../text_normalization/ko/taggers/date.py                 | 2 +-
 .../text_normalization/ko/verbalizers/post_processing.py  | 7 ++-----
 nemo_text_processing/text_normalization/normalize.py      | 8 ++++++--
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/nemo_text_processing/text_normalization/ko/taggers/date.py b/nemo_text_processing/text_normalization/ko/taggers/date.py
index 3c89e104b..45943e1a3 100644
--- a/nemo_text_processing/text_normalization/ko/taggers/date.py
+++ b/nemo_text_processing/text_normalization/ko/taggers/date.py
@@ -259,7 +259,7 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
             + pynini.closure(month_josa, 0, 1)
             + pynutil.insert('"')
         ).optimize()
-        
+
         individual_day_component = (
             pynutil.insert("day: \"")
             + cardinal_lz
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py b/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
index b363040fd..45fcb259f 100644
--- a/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
+++ b/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
@@ -38,10 +38,7 @@ def __init__(self, cache_dir: str = None, overwrite_cache: bool = False):
     def get_postprocess_graph(self):
         delete_space = pynutil.delete(NEMO_SPACE)
 
-        vowel_final = pynini.union(
-            "아", "야", "어", "여", "오", "요", "우", "유", "이", "애", "에",
-            "사", "오", "구"
-        )
+        vowel_final = pynini.union("아", "야", "어", "여", "오", "요", "우", "유", "이", "애", "에", "사", "오", "구")
 
         rule_i_to_ga = pynini.cdrewrite(
             delete_space + pynini.cross("이 ", "가 "),
@@ -65,4 +62,4 @@ def get_postprocess_graph(self):
         )
 
         graph = rule_i_to_ga @ rule_eun_to_neun @ rule_eul_to_reul
-        return graph.optimize()
\ No newline at end of file
+        return graph.optimize()
diff --git a/nemo_text_processing/text_normalization/normalize.py b/nemo_text_processing/text_normalization/normalize.py
index 5930f49bd..12661bd3d 100644
--- a/nemo_text_processing/text_normalization/normalize.py
+++ b/nemo_text_processing/text_normalization/normalize.py
@@ -189,7 +189,7 @@ def __init__(
             from nemo_text_processing.text_normalization.ko.taggers.tokenize_and_classify import ClassifyFst
             from nemo_text_processing.text_normalization.ko.verbalizers.post_processing import PostProcessingFst
             from nemo_text_processing.text_normalization.ko.verbalizers.verbalize_final import VerbalizeFinalFst
-            
+
             if post_process:
                 self.post_processor = PostProcessingFst(cache_dir=cache_dir, overwrite_cache=overwrite_cache)
         else:
@@ -392,7 +392,11 @@ def normalize(
                 return text
         output = SPACE_DUP.sub(' ', output[1:])
 
-        if self.lang in ["en", "hi", "vi", "ko"] and hasattr(self, 'post_processor') and self.post_processor is not None:
+        if (
+            self.lang in ["en", "hi", "vi", "ko"]
+            and hasattr(self, 'post_processor')
+            and self.post_processor is not None
+        ):
             output = self.post_process(output)
 
         if punct_post_process:

From 420fb96f8b16de776796c965483926bc42e3881a Mon Sep 17 00:00:00 2001
From: Jinwoo Bae <bbae7050@gmail.com>
Date: Wed, 8 Apr 2026 00:04:09 -0700
Subject: [PATCH 3/5] Add Korean TN fraction test cases for particle agreement

Signed-off-by: Jinwoo Bae <bbae7050@gmail.com>
---
 .../test_cases_fraction.txt                      | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt b/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt
index a183be59b..fc39fd495 100644
--- a/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt
+++ b/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt
@@ -11,4 +11,18 @@
 1과1/3~일과 삼분의 일
 1과√1/4~일과 사분의 루트 일
 3분의1~삼분의 일
-121분의3221~백이십일분의 삼천이백이십일
\ No newline at end of file
+121분의3221~백이십일분의 삼천이백이십일
+이번 경기의 3/5이 중요하다~이번 경기의 오분의 삼 이 중요하다
+전체 구역의 4/7이 통제되었다~전체 구역의 칠분의 사가 통제되었다
+설문 응답자의 9/10 이 찬성했다~설문 응답자의 십분의 구가 찬성했다
+그 중 2/3은 성공했다~그 중 삼분의 이는 성공했다
+참가자의 5/8이 탈락했다~참가자의 팔분의 오가 탈락했다
+참가자의 6/7 이 통과했다~참가자의 칠분의 육 이 통과했다
+전체의 3/4 이 감소했다~전체의 사분의 삼 이 감소했다
+응답자의 2/5이 반대했다~응답자의 오분의 이가 반대했다
+학생의 7/9 이 합격했다~학생의 구분의 칠 이 합격했다
+전체의 1/2 이 남았다~전체의 이분의 일 이 남았다
+그 중 4/5이 성공했다~그 중 오분의 사가 성공했다
+전체의 5/6이 완료되었다~전체의 육분의 오가 완료되었다
+참가자의 3/8이 탈락했다~참가자의 팔분의 삼 이 탈락했다
+응답자의 6/10 이 동의했다~응답자의 십분의 육 이 동의했다
\ No newline at end of file

From ecf34ccb8657f0e91852657750fa310d29cd128d Mon Sep 17 00:00:00 2001
From: Jinwoo Bae <bbae7050@gmail.com>
Date: Fri, 10 Apr 2026 12:18:56 -0700
Subject: [PATCH 4/5] Fix Korean fraction verbalization with particle-aware
 handling and remove post_processing dependency

Signed-off-by: Jinwoo Bae <bbae7050@gmail.com>
---
 .../text_normalization/ko/taggers/fraction.py |  22 +++-
 .../ko/verbalizers/fraction.py                | 108 ++++++++++++++++--
 .../ko/verbalizers/post_processing.py         |  65 -----------
 .../ko/verbalizers/verbalize_final.py         |   2 +-
 .../text_normalization/normalize.py           |   6 +-
 .../test_cases_fraction.txt                   |   6 +-
 6 files changed, 124 insertions(+), 85 deletions(-)
 delete mode 100644 nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py

diff --git a/nemo_text_processing/text_normalization/ko/taggers/fraction.py b/nemo_text_processing/text_normalization/ko/taggers/fraction.py
index 2163f5f7f..6181e82d1 100644
--- a/nemo_text_processing/text_normalization/ko/taggers/fraction.py
+++ b/nemo_text_processing/text_normalization/ko/taggers/fraction.py
@@ -81,6 +81,26 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
             + numerator_component
         )
 
+        # Optional particles following the fraction
+        particle_subject = (
+            pynutil.insert('morphosyntactic_features: "분의_subject"')
+            + (pynutil.delete("이") | pynutil.delete("가"))
+        )
+        particle_topic = (
+            pynutil.insert('morphosyntactic_features: "분의_topic"')
+            + (pynutil.delete("은") | pynutil.delete("는"))
+        )
+        particle_object = (
+            pynutil.insert('morphosyntactic_features: "분의_object"')
+            + (pynutil.delete("을") | pynutil.delete("를"))
+        )
+
+        optional_particle = pynini.closure(
+            pynutil.insert(NEMO_SPACE) + (particle_subject | particle_topic | particle_object),
+            0,
+            1,
+        )
+        
         # Optional minus sign
         optional_sign = (
             pynutil.insert(f'negative: {DOUBLE_QUOTE}')
@@ -90,7 +110,7 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
         )
 
         # Combine full graph
-        graph = pynini.closure(optional_sign, 0, 1) + (graph_fraction_slash | graph_fraction_word)
+        graph = pynini.closure(optional_sign, 0, 1) + (graph_fraction_slash | graph_fraction_word) + optional_particle
         self.graph = graph.optimize()
         final_graph = self.add_tokens(graph)
         self.fst = final_graph.optimize()
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py b/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py
index bafbf133d..5886d408c 100644
--- a/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py
+++ b/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py
@@ -17,7 +17,6 @@
 
 from nemo_text_processing.text_normalization.ko.graph_utils import NEMO_NOT_QUOTE, NEMO_SPACE, GraphFst, delete_space
 
-
 class FractionFst(GraphFst):
     """
     Finite state transducer for verbalizing Korean fractions, e.g.
@@ -60,7 +59,46 @@ def __init__(self, deterministic: bool = True):
             + numerator_component
         )
 
-        # Match and delete integer_part field (e.g., "2" in "2과3분의1")
+        # Handle subject particle feature (분의_subject)
+        # Insert default particle "이" (will be corrected later via rewrite rules)
+        subject_suffix = (
+            pynutil.delete(NEMO_SPACE)
+            + pynutil.delete('morphosyntactic_features:')
+            + delete_space
+            + pynutil.delete('"분의_subject"')
+            + delete_space
+            + pynutil.insert("이")   # 일단 기본값
+        )
+
+        # Handle topic particle feature (분의_topic)
+        topic_suffix = (
+            pynutil.delete(NEMO_SPACE)
+            + pynutil.delete('morphosyntactic_features:')
+            + delete_space
+            + pynutil.delete('"분의_topic"')
+            + delete_space
+            + pynutil.insert("은")
+        )
+
+        # Handle object particle feature (분의_object)
+        object_suffix = (
+            pynutil.delete(NEMO_SPACE)
+            + pynutil.delete('morphosyntactic_features:')
+            + delete_space
+            + pynutil.delete('"분의_object"')
+            + delete_space
+            + pynutil.insert("을")
+        )
+        
+        # Combine fraction + optional particle suffix
+        # Particle is always inserted first in default form and later corrected
+        graph_fraction_all = (
+            graph_fraction
+            + pynini.closure(subject_suffix | topic_suffix | object_suffix, 0, 1)
+        )
+               
+        # Handle integer + fraction (e.g., "2과 3/4")
+        # integer_part is removed and replaced with proper spacing
         graph_integer = (
             pynutil.delete('integer_part:')
             + delete_space
@@ -69,9 +107,10 @@ def __init__(self, deterministic: bool = True):
             + pynutil.delete('"')
             + pynutil.insert(NEMO_SPACE)
         )
-        graph_integer_fraction = graph_integer + delete_space + graph_fraction
-
-        # Match and delete optional negative field (e.g., "마이너스")
+        # Combine integer part with fraction
+        graph_integer_fraction = graph_integer + delete_space + graph_fraction_all
+        
+        # Handle optional negative prefix (e.g., "마이너스")
         optional_sign = (
             pynutil.delete('negative:')
             + delete_space
@@ -82,9 +121,58 @@ def __init__(self, deterministic: bool = True):
             + pynutil.insert(NEMO_SPACE)
         )
 
-        # Final graph handles optional negative + (integer + fraction | fraction only)
-        graph = pynini.closure(optional_sign, 0, 1) + (graph_integer_fraction | graph_fraction)
-
-        # Final optimized verbalizer FST
+        # Final structure:
+        # [optional negative] + (integer + fraction OR fraction only)
+        graph = pynini.closure(optional_sign, 0, 1) + (graph_integer_fraction | graph_fraction_all)
+        
+        # Remove token wrappers
         final_graph = self.delete_tokens(graph)
-        self.fst = final_graph.optimize()
+        
+        # Sigma for rewrite context (entire string)
+        sigma = pynini.closure(NEMO_NOT_QUOTE | NEMO_SPACE)
+        
+        # Fix subject particle agreement (이 → 가 for vowel-ending numerals)
+        # e.g., 사이 → 사가, 구이 → 구가
+        subject_rewrite = pynini.cdrewrite(
+            pynini.union(
+                pynini.cross("이이", "이가"),
+                pynini.cross("사이", "사가"),
+                pynini.cross("오이", "오가"),
+                pynini.cross("구이", "구가"),
+            ),
+            "",
+            "",
+            sigma,
+        )
+        
+        # Fix topic particle agreement (은 → 는)
+        # e.g., 이은 → 이는, 사은 → 사는
+        topic_rewrite = pynini.cdrewrite(
+            pynini.union(
+                pynini.cross("이은", "이는"),
+                pynini.cross("사은", "사는"),
+                pynini.cross("오은", "오는"),
+                pynini.cross("구은", "구는"),
+            ),
+            "",
+            "",
+            sigma,
+        )
+
+        # Fix object particle agreement (을 → 를)
+        # e.g., 오을 → 오를, 이을 → 이를
+        object_rewrite = pynini.cdrewrite(
+            pynini.union(
+                pynini.cross("이을", "이를"),
+                pynini.cross("사을", "사를"),
+                pynini.cross("오을", "오를"),
+                pynini.cross("구을", "구를"),
+            ),
+            "",
+            "",
+            sigma,
+        )
+        
+        # Apply all rewrite rules sequentially and final optimized FST
+        final_graph = final_graph @ subject_rewrite @ topic_rewrite @ object_rewrite
+        self.fst = final_graph.optimize()
\ No newline at end of file
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py b/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
deleted file mode 100644
index 45fcb259f..000000000
--- a/nemo_text_processing/text_normalization/ko/verbalizers/post_processing.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
-#
-# 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.
-
-import os
-import pynini
-from pynini.lib import pynutil
-
-from nemo_text_processing.text_normalization.ko.graph_utils import NEMO_SIGMA, NEMO_SPACE, generator_main
-from nemo_text_processing.utils.logging import logger
-
-
-class PostProcessingFst:
-    def __init__(self, cache_dir: str = None, overwrite_cache: bool = False):
-        far_file = None
-        if cache_dir is not None and cache_dir != "None":
-            os.makedirs(cache_dir, exist_ok=True)
-            far_file = os.path.join(cache_dir, "ko_tn_post_processing.far")
-
-        if not overwrite_cache and far_file and os.path.exists(far_file):
-            self.fst = pynini.Far(far_file, mode="r")["post_process_graph"]
-            logger.info(f"Post processing graph was restored from {far_file}.")
-        else:
-            self.fst = self.get_postprocess_graph()
-            if far_file:
-                generator_main(far_file, {"post_process_graph": self.fst})
-
-    def get_postprocess_graph(self):
-        delete_space = pynutil.delete(NEMO_SPACE)
-
-        vowel_final = pynini.union("아", "야", "어", "여", "오", "요", "우", "유", "이", "애", "에", "사", "오", "구")
-
-        rule_i_to_ga = pynini.cdrewrite(
-            delete_space + pynini.cross("이 ", "가 "),
-            vowel_final,
-            "",
-            NEMO_SIGMA,
-        )
-
-        rule_eun_to_neun = pynini.cdrewrite(
-            delete_space + pynini.cross("은 ", "는 "),
-            vowel_final,
-            "",
-            NEMO_SIGMA,
-        )
-
-        rule_eul_to_reul = pynini.cdrewrite(
-            delete_space + pynini.cross("을 ", "를 "),
-            vowel_final,
-            "",
-            NEMO_SIGMA,
-        )
-
-        graph = rule_i_to_ga @ rule_eun_to_neun @ rule_eul_to_reul
-        return graph.optimize()
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py b/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py
index 0271a4b7b..1c0fabd1b 100644
--- a/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py
+++ b/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py
@@ -69,4 +69,4 @@ def __init__(self, deterministic: bool = True, cache_dir: str = None, overwrite_
             self.fst = verbalizer.optimize()
 
             if far_file:
-                generator_main(far_file, {"verbalize": self.fst})
+                generator_main(far_file, {"verbalize": self.fst})
\ No newline at end of file
diff --git a/nemo_text_processing/text_normalization/normalize.py b/nemo_text_processing/text_normalization/normalize.py
index 12661bd3d..7682ef047 100644
--- a/nemo_text_processing/text_normalization/normalize.py
+++ b/nemo_text_processing/text_normalization/normalize.py
@@ -187,11 +187,7 @@ def __init__(
                 self.post_processor = PostProcessingFst(cache_dir=cache_dir, overwrite_cache=overwrite_cache)
         elif lang == 'ko':
             from nemo_text_processing.text_normalization.ko.taggers.tokenize_and_classify import ClassifyFst
-            from nemo_text_processing.text_normalization.ko.verbalizers.post_processing import PostProcessingFst
             from nemo_text_processing.text_normalization.ko.verbalizers.verbalize_final import VerbalizeFinalFst
-
-            if post_process:
-                self.post_processor = PostProcessingFst(cache_dir=cache_dir, overwrite_cache=overwrite_cache)
         else:
             raise NotImplementedError(f"Language {lang} has not been supported yet.")
 
@@ -393,7 +389,7 @@ def normalize(
         output = SPACE_DUP.sub(' ', output[1:])
 
         if (
-            self.lang in ["en", "hi", "vi", "ko"]
+            self.lang in ["en", "hi", "vi"]
             and hasattr(self, 'post_processor')
             and self.post_processor is not None
         ):
diff --git a/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt b/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt
index fc39fd495..65e5049b8 100644
--- a/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt
+++ b/tests/nemo_text_processing/ko/data_text_normalization/test_cases_fraction.txt
@@ -12,9 +12,9 @@
 1과√1/4~일과 사분의 루트 일
 3분의1~삼분의 일
 121분의3221~백이십일분의 삼천이백이십일
-이번 경기의 3/5이 중요하다~이번 경기의 오분의 삼 이 중요하다
+이번 경기의 3/5이 중요하다~이번 경기의 오분의 삼이 중요하다
 전체 구역의 4/7이 통제되었다~전체 구역의 칠분의 사가 통제되었다
-설문 응답자의 9/10 이 찬성했다~설문 응답자의 십분의 구가 찬성했다
+설문 응답자의 9/10이 찬성했다~설문 응답자의 십분의 구가 찬성했다
 그 중 2/3은 성공했다~그 중 삼분의 이는 성공했다
 참가자의 5/8이 탈락했다~참가자의 팔분의 오가 탈락했다
 참가자의 6/7 이 통과했다~참가자의 칠분의 육 이 통과했다
@@ -24,5 +24,5 @@
 전체의 1/2 이 남았다~전체의 이분의 일 이 남았다
 그 중 4/5이 성공했다~그 중 오분의 사가 성공했다
 전체의 5/6이 완료되었다~전체의 육분의 오가 완료되었다
-참가자의 3/8이 탈락했다~참가자의 팔분의 삼 이 탈락했다
+참가자의 3/8이 탈락했다~참가자의 팔분의 삼이 탈락했다
 응답자의 6/10 이 동의했다~응답자의 십분의 육 이 동의했다
\ No newline at end of file

From 7acdb886c04c102814c4a6b7645a4627f0f89fbb Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Fri, 10 Apr 2026 20:02:04 +0000
Subject: [PATCH 5/5] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 .../text_normalization/ko/taggers/fraction.py | 17 +++++-------
 .../ko/verbalizers/fraction.py                | 26 +++++++++----------
 .../ko/verbalizers/verbalize_final.py         |  2 +-
 .../text_normalization/normalize.py           |  6 +----
 4 files changed, 21 insertions(+), 30 deletions(-)

diff --git a/nemo_text_processing/text_normalization/ko/taggers/fraction.py b/nemo_text_processing/text_normalization/ko/taggers/fraction.py
index 6181e82d1..64ea0c56e 100644
--- a/nemo_text_processing/text_normalization/ko/taggers/fraction.py
+++ b/nemo_text_processing/text_normalization/ko/taggers/fraction.py
@@ -82,17 +82,14 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
         )
 
         # Optional particles following the fraction
-        particle_subject = (
-            pynutil.insert('morphosyntactic_features: "분의_subject"')
-            + (pynutil.delete("이") | pynutil.delete("가"))
+        particle_subject = pynutil.insert('morphosyntactic_features: "분의_subject"') + (
+            pynutil.delete("이") | pynutil.delete("가")
         )
-        particle_topic = (
-            pynutil.insert('morphosyntactic_features: "분의_topic"')
-            + (pynutil.delete("은") | pynutil.delete("는"))
+        particle_topic = pynutil.insert('morphosyntactic_features: "분의_topic"') + (
+            pynutil.delete("은") | pynutil.delete("는")
         )
-        particle_object = (
-            pynutil.insert('morphosyntactic_features: "분의_object"')
-            + (pynutil.delete("을") | pynutil.delete("를"))
+        particle_object = pynutil.insert('morphosyntactic_features: "분의_object"') + (
+            pynutil.delete("을") | pynutil.delete("를")
         )
 
         optional_particle = pynini.closure(
@@ -100,7 +97,7 @@ def __init__(self, cardinal: GraphFst, deterministic: bool = True):
             0,
             1,
         )
-        
+
         # Optional minus sign
         optional_sign = (
             pynutil.insert(f'negative: {DOUBLE_QUOTE}')
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py b/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py
index 5886d408c..84e9db160 100644
--- a/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py
+++ b/nemo_text_processing/text_normalization/ko/verbalizers/fraction.py
@@ -17,6 +17,7 @@
 
 from nemo_text_processing.text_normalization.ko.graph_utils import NEMO_NOT_QUOTE, NEMO_SPACE, GraphFst, delete_space
 
+
 class FractionFst(GraphFst):
     """
     Finite state transducer for verbalizing Korean fractions, e.g.
@@ -67,7 +68,7 @@ def __init__(self, deterministic: bool = True):
             + delete_space
             + pynutil.delete('"분의_subject"')
             + delete_space
-            + pynutil.insert("이")   # 일단 기본값
+            + pynutil.insert("이")  # 일단 기본값
         )
 
         # Handle topic particle feature (분의_topic)
@@ -89,14 +90,11 @@ def __init__(self, deterministic: bool = True):
             + delete_space
             + pynutil.insert("을")
         )
-        
+
         # Combine fraction + optional particle suffix
         # Particle is always inserted first in default form and later corrected
-        graph_fraction_all = (
-            graph_fraction
-            + pynini.closure(subject_suffix | topic_suffix | object_suffix, 0, 1)
-        )
-               
+        graph_fraction_all = graph_fraction + pynini.closure(subject_suffix | topic_suffix | object_suffix, 0, 1)
+
         # Handle integer + fraction (e.g., "2과 3/4")
         # integer_part is removed and replaced with proper spacing
         graph_integer = (
@@ -109,7 +107,7 @@ def __init__(self, deterministic: bool = True):
         )
         # Combine integer part with fraction
         graph_integer_fraction = graph_integer + delete_space + graph_fraction_all
-        
+
         # Handle optional negative prefix (e.g., "마이너스")
         optional_sign = (
             pynutil.delete('negative:')
@@ -124,13 +122,13 @@ def __init__(self, deterministic: bool = True):
         # Final structure:
         # [optional negative] + (integer + fraction OR fraction only)
         graph = pynini.closure(optional_sign, 0, 1) + (graph_integer_fraction | graph_fraction_all)
-        
+
         # Remove token wrappers
         final_graph = self.delete_tokens(graph)
-        
+
         # Sigma for rewrite context (entire string)
         sigma = pynini.closure(NEMO_NOT_QUOTE | NEMO_SPACE)
-        
+
         # Fix subject particle agreement (이 → 가 for vowel-ending numerals)
         # e.g., 사이 → 사가, 구이 → 구가
         subject_rewrite = pynini.cdrewrite(
@@ -144,7 +142,7 @@ def __init__(self, deterministic: bool = True):
             "",
             sigma,
         )
-        
+
         # Fix topic particle agreement (은 → 는)
         # e.g., 이은 → 이는, 사은 → 사는
         topic_rewrite = pynini.cdrewrite(
@@ -172,7 +170,7 @@ def __init__(self, deterministic: bool = True):
             "",
             sigma,
         )
-        
+
         # Apply all rewrite rules sequentially and final optimized FST
         final_graph = final_graph @ subject_rewrite @ topic_rewrite @ object_rewrite
-        self.fst = final_graph.optimize()
\ No newline at end of file
+        self.fst = final_graph.optimize()
diff --git a/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py b/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py
index 1c0fabd1b..0271a4b7b 100644
--- a/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py
+++ b/nemo_text_processing/text_normalization/ko/verbalizers/verbalize_final.py
@@ -69,4 +69,4 @@ def __init__(self, deterministic: bool = True, cache_dir: str = None, overwrite_
             self.fst = verbalizer.optimize()
 
             if far_file:
-                generator_main(far_file, {"verbalize": self.fst})
\ No newline at end of file
+                generator_main(far_file, {"verbalize": self.fst})
diff --git a/nemo_text_processing/text_normalization/normalize.py b/nemo_text_processing/text_normalization/normalize.py
index 7682ef047..5e2f9ebb5 100644
--- a/nemo_text_processing/text_normalization/normalize.py
+++ b/nemo_text_processing/text_normalization/normalize.py
@@ -388,11 +388,7 @@ def normalize(
                 return text
         output = SPACE_DUP.sub(' ', output[1:])
 
-        if (
-            self.lang in ["en", "hi", "vi"]
-            and hasattr(self, 'post_processor')
-            and self.post_processor is not None
-        ):
+        if self.lang in ["en", "hi", "vi"] and hasattr(self, 'post_processor') and self.post_processor is not None:
             output = self.post_process(output)
 
         if punct_post_process: