Fix db-pedia-infer backend

Author: laggui

examples/text-classification/examples/db-pedia-infer.rs

@@ -1,14 +1,14 @@
 use text_classification::DbPediaDataset;
 
-use burn::tensor::backend::AutodiffBackend;
+use burn::tensor::backend::Backend;
 
 #[cfg(not(feature = "f16"))]
 #[allow(dead_code)]
 type ElemType = f32;
 #[cfg(feature = "f16")]
 type ElemType = burn::tensor::f16;
 
-pub fn launch<B: AutodiffBackend>(device: B::Device) {
+pub fn launch<B: Backend>(device: B::Device) {
     text_classification::inference::infer::<B, DbPediaDataset>(
         device,
         "/tmp/text-classification-db-pedia",
@@ -34,24 +34,18 @@ pub fn launch<B: AutodiffBackend>(device: B::Device) {
     feature = "ndarray-blas-accelerate",
 ))]
 mod ndarray {
-    use burn::backend::{
-        ndarray::{NdArray, NdArrayDevice},
-        Autodiff,
-    };
+    use burn::backend::ndarray::{NdArray, NdArrayDevice};
 
     use crate::{launch, ElemType};
 
     pub fn run() {
-        launch::<Autodiff<NdArray<ElemType>>>(NdArrayDevice::Cpu);
+        launch::<NdArray<ElemType>>(NdArrayDevice::Cpu);
     }
 }
 
 #[cfg(feature = "tch-gpu")]
 mod tch_gpu {
-    use burn::backend::{
-        libtorch::{LibTorch, LibTorchDevice},
-        Autodiff,
-    };
+    use burn::backend::libtorch::{LibTorch, LibTorchDevice};
 
     use crate::{launch, ElemType};
 
@@ -61,35 +55,29 @@ mod tch_gpu {
         #[cfg(target_os = "macos")]
         let device = LibTorchDevice::Mps;
 
-        launch::<Autodiff<LibTorch<ElemType>>>(device);
+        launch::<LibTorch<ElemType>>(device);
     }
 }
 
 #[cfg(feature = "tch-cpu")]
 mod tch_cpu {
-    use burn::backend::{
-        tch::{LibTorch, LibTorchDevice},
-        Autodiff,
-    };
+    use burn::backend::tch::{LibTorch, LibTorchDevice};
 
     use crate::{launch, ElemType};
 
     pub fn run() {
-        launch::<Autodiff<LibTorch<ElemType>>>(LibTorchDevice::Cpu);
+        launch::<LibTorch<ElemType>>(LibTorchDevice::Cpu);
     }
 }
 
 #[cfg(feature = "wgpu")]
 mod wgpu {
-    use burn::backend::{
-        wgpu::{Wgpu, WgpuDevice},
-        Autodiff,
-    };
+    use burn::backend::wgpu::{Wgpu, WgpuDevice};
 
     use crate::{launch, ElemType};
 
     pub fn run() {
-        launch::<Autodiff<Wgpu<ElemType, i32>>>(WgpuDevice::default());
+        launch::<Wgpu<ElemType, i32>>(WgpuDevice::default());
     }
 }