diff --git a/src/main/java/com/kamco/cd/training/hyperparam/HyperParamApiController.java b/src/main/java/com/kamco/cd/training/hyperparam/HyperParamApiController.java
index 80ce295..ef04353 100644
--- a/src/main/java/com/kamco/cd/training/hyperparam/HyperParamApiController.java
+++ b/src/main/java/com/kamco/cd/training/hyperparam/HyperParamApiController.java
@@ -97,9 +97,9 @@ public class HyperParamApiController {
           String type,
       @Parameter(description = "시작일", example = "2026-02-01") @RequestParam(required = false)
           LocalDate startDate,
-      @Parameter(description = "종료일", example = "2026-02-28") @RequestParam(required = false)
+      @Parameter(description = "종료일", example = "2026-03-31") @RequestParam(required = false)
           LocalDate endDate,
-      @Parameter(description = "버전명", example = "G_000001") @RequestParam(required = false)
+      @Parameter(description = "버전명", example = "G1_000019") @RequestParam(required = false)
           String hyperVer,
       @Parameter(description = "모델 타입 (G1, G2, G3 중 하나)", example = "G1")
           @RequestParam(required = false)
@@ -142,7 +142,7 @@ public class HyperParamApiController {
       })
   @DeleteMapping("/{uuid}")
   public ApiResponseDto<Void> deleteHyperParam(
-      @Parameter(description = "하이퍼파라미터 uuid", example = "c3b5a285-8f68-42af-84f0-e6d09162deb5")
+      @Parameter(description = "하이퍼파라미터 uuid", example = "57fc9170-64c1-4128-aa7b-0657f08d6d10")
           @PathVariable
           UUID uuid) {
     hyperParamService.deleteHyperParam(uuid);
@@ -164,7 +164,7 @@ public class HyperParamApiController {
       })
   @GetMapping("/{uuid}")
   public ApiResponseDto<HyperParamDto.Basic> getHyperParam(
-      @Parameter(description = "하이퍼파라미터 uuid", example = "c3b5a285-8f68-42af-84f0-e6d09162deb5")
+      @Parameter(description = "하이퍼파라미터 uuid", example = "57fc9170-64c1-4128-aa7b-0657f08d6d10")
           @PathVariable
           UUID uuid) {
     return ApiResponseDto.ok(hyperParamService.getHyperParam(uuid));
diff --git a/src/main/java/com/kamco/cd/training/hyperparam/dto/HyperParamDto.java b/src/main/java/com/kamco/cd/training/hyperparam/dto/HyperParamDto.java
index b6becca..64f1abe 100644
--- a/src/main/java/com/kamco/cd/training/hyperparam/dto/HyperParamDto.java
+++ b/src/main/java/com/kamco/cd/training/hyperparam/dto/HyperParamDto.java
@@ -29,6 +29,8 @@ public class HyperParamDto {
     private UUID uuid;
     private String hyperVer;
     @JsonFormatDttm private ZonedDateTime createdDttm;
+    @JsonFormatDttm private ZonedDateTime lastUsedDttm;
+    private Integer totalUseCnt;
 
     // -------------------------
     // Important
diff --git a/src/main/java/com/kamco/cd/training/postgres/entity/ModelHyperParamEntity.java b/src/main/java/com/kamco/cd/training/postgres/entity/ModelHyperParamEntity.java
index fb250b1..35601be 100644
--- a/src/main/java/com/kamco/cd/training/postgres/entity/ModelHyperParamEntity.java
+++ b/src/main/java/com/kamco/cd/training/postgres/entity/ModelHyperParamEntity.java
@@ -192,10 +192,10 @@ public class ModelHyperParamEntity {
   @Column(name = "save_best_rule", nullable = false, length = 10)
   private String saveBestRule = "greater";
 
-  /** Default: 10 */
+  /** Default: 1 */
   @NotNull
   @Column(name = "val_interval", nullable = false)
-  private Integer valInterval = 10;
+  private Integer valInterval = 1;
 
   /** Default: 400 */
   @NotNull
@@ -319,6 +319,8 @@ public class ModelHyperParamEntity {
         this.uuid,
         this.hyperVer,
         this.createdDttm,
+        this.lastUsedDttm,
+        this.totalUseCnt,
         // -------------------------
         // Important
         // -------------------------
diff --git a/src/main/java/com/kamco/cd/training/train/service/JobRecoveryOnStartupService.java b/src/main/java/com/kamco/cd/training/train/service/JobRecoveryOnStartupService.java
index d42bd0c..9ea39ca 100644
--- a/src/main/java/com/kamco/cd/training/train/service/JobRecoveryOnStartupService.java
+++ b/src/main/java/com/kamco/cd/training/train/service/JobRecoveryOnStartupService.java
@@ -1,7 +1,6 @@
 package com.kamco.cd.training.train.service;
 
 import com.kamco.cd.training.postgres.core.ModelTrainJobCoreService;
-import com.kamco.cd.training.postgres.core.ModelTrainMngCoreService;
 import com.kamco.cd.training.train.dto.ModelTrainJobDto;
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -20,7 +19,6 @@ import org.springframework.transaction.annotation.Transactional;
 @Transactional(readOnly = true)
 public class JobRecoveryOnStartupService {
   private final ModelTrainJobCoreService modelTrainJobCoreService;
-  private final ModelTrainMngCoreService modelTrainMngCoreService;
 
   @EventListener(ApplicationReadyEvent.class)
   public void recover() {