diff --git a/python/infinicore/nn/functional/__init__.py b/python/infinicore/nn/functional/__init__.py
index a28128a1d..cbe3d3196 100644
--- a/python/infinicore/nn/functional/__init__.py
+++ b/python/infinicore/nn/functional/__init__.py
@@ -37,6 +37,7 @@
 from .triplet_margin_with_distance_loss import triplet_margin_with_distance_loss
 from .unfold import unfold
 from .upsample_bilinear import upsample_bilinear
+from .upsample_nearest import upsample_nearest
 
 __all__ = [
     "adaptive_max_pool1d",
diff --git a/python/infinicore/nn/functional/interpolate.py b/python/infinicore/nn/functional/interpolate.py
index 739e4de36..cc2486a23 100644
--- a/python/infinicore/nn/functional/interpolate.py
+++ b/python/infinicore/nn/functional/interpolate.py
@@ -85,6 +85,13 @@ def interpolate(
                 "Per-dimension scale_factor is not supported; pass a scalar (or equal values)."
             )
 
+    if mode == "nearest" and spatial_ndim == 1:
+        from .upsample_nearest import upsample_nearest
+
+        if size_list:
+            return upsample_nearest(input, size=size_list[0])
+        return upsample_nearest(input, scale_factor=scale_list[0])
+
     align_i = 0 if align_corners is None else int(bool(align_corners))
 
     return Tensor(
diff --git a/python/infinicore/ops/logical_and.py b/python/infinicore/ops/logical_and.py
index 0aa17c1ef..4853f3b2d 100644
--- a/python/infinicore/ops/logical_and.py
+++ b/python/infinicore/ops/logical_and.py
@@ -5,9 +5,27 @@
 
 def logical_and(input: Tensor, other: Tensor, *, out=None) -> Tensor:
     r"""Computes the element-wise logical AND of the given input tensors."""
-    if input.device.type not in ("cpu"):
+    if input.device.type != "cpu":
         assert infinicore.use_ntops
-        return infinicore.ntops.torch.logical_and(input, other, out=out)
+        lhs = infinicore.empty(input.shape, dtype=infinicore.bool, device=input.device)
+        rhs = infinicore.empty(other.shape, dtype=infinicore.bool, device=other.device)
+        input_zero = infinicore.zeros(
+            input.shape, dtype=input.dtype, device=input.device
+        )
+        other_zero = infinicore.zeros(
+            other.shape, dtype=other.dtype, device=other.device
+        )
+
+        infinicore.ntops.torch.ne(input, input_zero, out=lhs)
+        infinicore.ntops.torch.ne(other, other_zero, out=rhs)
+
+        if out is None:
+            out = infinicore.empty(
+                input.shape, dtype=infinicore.bool, device=input.device
+            )
+
+        infinicore.ntops.torch.bitwise_and(lhs, rhs, out=out)
+        return out
 
     if out is None:
         return Tensor(_infinicore.logical_and(input._underlying, other._underlying))
diff --git a/python/infinicore/ops/logical_not.py b/python/infinicore/ops/logical_not.py
index 04168fe0f..d6b3a4dd0 100644
--- a/python/infinicore/ops/logical_not.py
+++ b/python/infinicore/ops/logical_not.py
@@ -5,10 +5,22 @@
 
 def logical_not(input: Tensor, *, out=None) -> Tensor:
     r"""Computes the element-wise logical NOT of the given input tensors."""
-    # 1. 非CPU平台调用 ntops 实现
-    if input.device.type not in ("cpu"):
+    if input.device.type != "cpu":
         assert infinicore.use_ntops
-        return infinicore.ntops.torch.logical_not(input, out=out)
+        input_zero = infinicore.zeros(
+            input.shape, dtype=input.dtype, device=input.device
+        )
+        result = infinicore.empty(
+            input.shape, dtype=infinicore.bool, device=input.device
+        )
+
+        infinicore.ntops.torch.eq(input, input_zero, out=result)
+
+        if out is None:
+            return result
+
+        infinicore.ntops.torch.bitwise_and(result, result, out=out)
+        return out
 
     # 2. 如果没有提供 out，创建一个新的 Tensor 并返回
     if out is None:
diff --git a/test/infinicore/ops/fmod.py b/test/infinicore/ops/fmod.py
index 8543e0f5b..d885be6fa 100644
--- a/test/infinicore/ops/fmod.py
+++ b/test/infinicore/ops/fmod.py
@@ -39,7 +39,11 @@ def parse_test_cases():
             tol = _TOLERANCE_MAP[dtype]
             a_spec = TensorSpec.from_tensor(in_shape, in_strides, dtype)
             b_spec = TensorSpec.from_tensor(
-                in_shape if other_shape is None else other_shape, None, dtype
+                in_shape if other_shape is None else other_shape,
+                None,
+                dtype,
+                scale=0.9,
+                bias=0.1,
             )
 
             cases.append(
diff --git a/test/infinicore/ops/index_copy.py b/test/infinicore/ops/index_copy.py
index f228f82b9..a8a769661 100644
--- a/test/infinicore/ops/index_copy.py
+++ b/test/infinicore/ops/index_copy.py
@@ -37,13 +37,13 @@ def parse_test_cases():
         # index for index_copy should be 1-D with length equal to source.size(dim)
         index_len = src_shape[dim]
 
+        unique_index = torch.randperm(target_shape[dim])[:index_len].to(torch.int64)
         index_spec = TensorSpec.from_tensor(
             (index_len,),
             None,
             infinicore.int64,
-            init_mode=TensorInitializer.RANDINT,
-            low=0,
-            high=target_shape[dim],
+            init_mode=TensorInitializer.MANUAL,
+            set_tensor=unique_index,
         )
         src_spec = TensorSpec.from_tensor(src_shape, None, infinicore.float32)
 
@@ -90,7 +90,7 @@ def torch_operator(self, *args, **kwargs):
         return torch.index_copy(*args, **kwargs)
 
     def infinicore_operator(self, *args, **kwargs):
-         return infinicore.index_copy(*args, **kwargs)
+        return infinicore.index_copy(*args, **kwargs)
 
 
 def main():
diff --git a/test/infinicore/ops/logdet.py b/test/infinicore/ops/logdet.py
index bebddd79a..771fa1f1d 100644
--- a/test/infinicore/ops/logdet.py
+++ b/test/infinicore/ops/logdet.py
@@ -6,6 +6,7 @@
 import infinicore
 import torch
 from framework import BaseOperatorTest, TensorSpec, TestCase, GenericTestRunner
+from framework.tensor import TensorInitializer
 
 # Test cases format: (matrix_shape, strides_or_None)
 # logdet(input) — returns (sign, logabsdet) in PyTorch
@@ -28,12 +29,47 @@
 _TENSOR_DTYPES = [infinicore.float32]
 
 
+def _stable_matrix_spec(shape, strides, dtype):
+    rows, cols = shape
+    if rows != cols:
+        raise ValueError("logdet test matrices must be square")
+
+    matrix = torch.full(shape, 0.01, dtype=torch.float32)
+    matrix += torch.eye(rows, dtype=torch.float32) * (rows + 1.0)
+
+    if strides is None:
+        return TensorSpec.from_tensor(
+            shape,
+            None,
+            dtype,
+            init_mode=TensorInitializer.MANUAL,
+            set_tensor=matrix,
+        )
+
+    storage_size = 1
+    for size, stride in zip(shape, strides):
+        storage_size += (size - 1) * abs(stride)
+
+    storage = torch.zeros((storage_size,), dtype=torch.float32)
+    for i in range(rows):
+        for j in range(cols):
+            storage[i * strides[0] + j * strides[1]] = matrix[i, j]
+
+    return TensorSpec.from_tensor(
+        shape,
+        strides,
+        dtype,
+        init_mode=TensorInitializer.MANUAL,
+        set_tensor=storage,
+    )
+
+
 def parse_test_cases():
     test_cases = []
     for shape, strides in _TEST_CASES_DATA:
         for dtype in _TENSOR_DTYPES:
             tol = _TOLERANCE_MAP.get(dtype, {"atol": 1e-5, "rtol": 1e-4})
-            spec = TensorSpec.from_tensor(shape, strides, dtype)
+            spec = _stable_matrix_spec(shape, strides, dtype)
 
             test_cases.append(
                 TestCase(