diff --git a/core/utils/data_loader.py b/core/utils/data_loader.py
index 390ba60..d429e88 100644
--- a/core/utils/data_loader.py
+++ b/core/utils/data_loader.py
@@ -164,5 +164,5 @@ class DataLoader:
         if create_dirs:
             filepath.parent.mkdir(parents=True, exist_ok=True)
 
-        df.to_csv(filepath, index=False, encoding="utf-8")
+        df.to_csv(filepath, index=False, encoding="utf-8", sep=",", quoting=1)
         logging.info(f"Saved {len(df)} rows to {filepath}")
diff --git a/processing/ner/name_builder.py b/processing/ner/name_builder.py
index b569f7f..f724b3f 100644
--- a/processing/ner/name_builder.py
+++ b/processing/ner/name_builder.py
@@ -11,6 +11,10 @@ from .name_tagger import NameTagger
 
 class NameBuilder:
     def __init__(self, config: PipelineConfig):
+        config = config.model_copy(deep=True)
+        config.data.max_dataset_size = 1_000_000
+        config.data.balance_by_sex = True
+
         self.config = config
         self.data_loader = DataLoader(config)
         self.tagger = NameTagger()
@@ -33,8 +37,8 @@ class NameBuilder:
         nlp = spacy.blank("fr")
 
         # Use NERNameTagger for parsing and validation
-        parsed_entities = NameTagger.parse_entities(ner_df["ner_entities"])
-        validated_entities = NameTagger.validate_entities(ner_df["name"], parsed_entities)
+        parsed_entities = self.tagger.parse_entities(ner_df["ner_entities"])
+        validated_entities = self.tagger.validate_entities(ner_df["name"], parsed_entities)
 
         # Drop rows with no valid entities
         mask = validated_entities.map(bool)
@@ -51,7 +55,7 @@ class NameBuilder:
         )
 
         # Use NERNameTagger to create spaCy DocBin
-        docs = NameTagger.create_docs(nlp, ner_df["name"].tolist(), validated_entities.tolist())
+        docs = self.tagger.create_docs(nlp, ner_df["name"].tolist(), validated_entities.tolist())
         doc_bin = DocBin(docs=docs)
 
         # Save
diff --git a/processing/ner/name_model.py b/processing/ner/name_model.py
index 8488424..c8d1141 100644
--- a/processing/ner/name_model.py
+++ b/processing/ner/name_model.py
@@ -8,6 +8,7 @@ from typing import Dict, Any, List, Tuple
 import spacy
 from spacy.training import Example
 from spacy.util import minibatch
+from tqdm import tqdm
 
 from core.config.pipeline_config import PipelineConfig
 
@@ -198,13 +199,10 @@ class NameModel:
 
             # Create training examples
             examples = []
-            for text, annotations in data:
+            for text, annotations in tqdm(data, description="Create training examples"):
                 doc = self.nlp.make_doc(text)
                 example = Example.from_dict(doc, annotations)
                 examples.append(example)
-                logging.info(
-                    f"Training example: {text[:30]} with entities {annotations.get('entities', [])}"
-                )
 
             # Train in batches
             batches = minibatch(examples, size=batch_size)
diff --git a/web/interfaces/experiments.py b/web/interfaces/experiments.py
index 3a4afa5..6624e13 100644
--- a/web/interfaces/experiments.py
+++ b/web/interfaces/experiments.py
@@ -13,7 +13,10 @@ from research.model_registry import list_available_models
 
 class Experiments:
     def __init__(
-            self, config: PipelineConfig, experiment_tracker: ExperimentTracker, experiment_runner: ExperimentRunner
+            self,
+            config: PipelineConfig,
+            experiment_tracker: ExperimentTracker,
+            experiment_runner: ExperimentRunner
     ):
         self.config = config
         self.experiment_tracker = experiment_tracker
@@ -22,6 +25,7 @@ class Experiments:
 
     def index(self):
         st.title("Experiments")
+
         tab1, tab2, tab3 = st.tabs(
             ["Templates", "Experiments", "Batch Experiments"])