keras tutorial
learning. Deep learning involves analyzing the input in layer by layer manner, where each layer progressively extracts higher level information about the input. Let us take a simple scenario of analyzing analyzing an image. Let us assume that your input image is divided up into a rectangular grid of pixels. Now, the first layer abstracts the pixels. The second layer understands the edges in the image. The Next the full object. Here, the feature extraction process goes from the output of one layer into the input of the next subsequent layer. By using this approach, we can process huge amount of features, which0 码力 | 98 页 | 1.57 MB | 1 年前3Keras: 基于 Python 的深度学习库
4 Flatten [source] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 5.2.5 Input [source] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 5.2.6 Reshape [source] 基于 PYTHON 的深度学习库 2 from keras.layers import Dense model.add(Dense(units=64, activation='relu', input_dim=100)) model.add(Dense(units=10, activation='softmax')) 在完成了模型的构建后, 可以使用 .compile() 来配置学习过程: Sequential([ Dense(32, input_shape=(784,)), Activation('relu'), Dense(10), Activation('softmax'), ]) 也可以使用 .add() 方法将各层添加到模型中: model = Sequential() model.add(Dense(32, input_dim=784)) model.add(Activation('relu'))0 码力 | 257 页 | 1.19 MB | 1 年前3《Efficient Deep Learning Book》[EDL] Chapter 4 - Efficient Architectures
Neural Nets (CNNs) were another important breakthrough that enabled learning spatial features in the input. Recurrent Neural Nets (RNNs) facilitated learning from the sequences and temporal data. These breakthroughs this representation an Embedding. An embedding is a vector of features that represent aspects of an input numerically. It must fulfill the following goals: a) To compress the information content of high-dimensional animal in a petting zoo. This is a binary classification problem in which our model classifies an input into one of the two classes: ‘Suitable’ and ‘Not Suitable’. Since in this scenario we have only a0 码力 | 53 页 | 3.92 MB | 1 年前3AI大模型千问 qwen 中文文档
generated_ids = model.generate( model_inputs.input_ids, max_new_tokens=512 ) generated_ids = [ output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ �→ids, generated_ids) ] response TextStreamer(tokenizer, skip_prompt=True, skip_special_tokens=True) generated_ids = model.generate( model_inputs.input_ids, max_new_tokens=512, streamer=streamer, ) 1.2.2 使用 vLLM 部署 要部署 Qwen1.5,我们建议您使用 vLLM。vLLM 是一个用于 generated_ids = model.generate( model_inputs.input_ids, max_new_tokens=512 ) generated_ids = [ output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ �→ids, generated_ids) ] response0 码力 | 56 页 | 835.78 KB | 1 年前3深度学习下的图像视频处理技术-沈小勇
photographers typically create underexposed photos Photo Enhancement is required Image Enhancement Input “Auto Enhance” on iPhone “Auto Tone” in Lightroom Ours Existing Photo Editing Tools Retinex-based 17] • White-Box: [ACM TOG 18] • Distort-and-Recover: [CVPR 18] • DPE: [CVPR 18] Previous Work Input WVM [CVPR’16] JieP [ICCV’17] HDRNet [Siggraph’17] DPE [CVPR’18] White-Box [TOG’18] Distort-and-Recover Why This Model? Advantage: Effective Learning and Efficient Learning Network Architecture Input Naïve Regression Expert-retouched Ablation Study Motivation: The benchmark dataset is collected0 码力 | 121 页 | 37.75 MB | 1 年前3《Efficient Deep Learning Book》[EDL] Chapter 7 - Automation
single hidden layer model whose size is determined by the input size parameter. def create_model(size): return tf.keras.Sequential([ tf.keras.Input(shape=(5,5)), layers.Dense(size, activation='relu'), layers layers.Dense(5, activation='softmax') ]) Our model, input data and the hyperparameter trial set is ready. Let's go ahead and train the model, each time choosing one item from the trial set. Each model core_args = dict(input_shape=(IMG_SIZE, IMG_SIZE, 3), include_top=False) core = apps.resnet50.ResNet50(**core_args) core.trainable = False # Setup the top model = tf.keras.Sequential([ layers.Input([IMG_SIZE0 码力 | 33 页 | 2.48 MB | 1 年前3《Efficient Deep Learning Book》[EDL] Chapter 2 - Compression Techniques
MP3 format for audio. DCT breaks down the given input data into independent components of which the ones that don’t contribute much to the original input can be discarded, based on the tolerance for loss Let us consider an arbitrary neural network layer. We can abstract it using a function with an input and parameters such that . In the case of a fully-connected layer, is a 2-D matrix. Further, assume just store the models. Our goal is to use them to make inferences (predict the output for a given input). Quantization transformed our weight matrices to a quantized integer format. However, the model layers0 码力 | 33 页 | 1.96 MB | 1 年前3《Efficient Deep Learning Book》[EDL] Chapter 6 - Advanced Learning Techniques - Technical Review
indeed generalizable and robust (i.e., nothing ties them to a specific task and minor changes in the input don’t significantly change the output), then we can simply add a few additional layers (known as the between inputs. In such pretext tasks, typically, the model pretends that a part/structure of the input is missing and it learns to predict the missing bit. It is similar to solving an almost finished jigsaw would look like. A pretext task requires the model to develop some level of understanding of the input, but it is not unsolvable or intractable. See figure 6-2 for a general theme that these tasks follow0 码力 | 31 页 | 4.03 MB | 1 年前3《Efficient Deep Learning Book》[EDL] Chapter 3 - Learning Techniques
weather and time. The fourth class (none) indicates the absence of an acceptable keyword in the input signal. Figure 3-4: Workflow of a home-automation device which detects three spoken words: hello deep learning models. Over the years, a wide range of techniques have been developed to facilitate input data generation and transformation. These techniques help to overcome dataset shortcomings like: mixing transformations and synthetic sample generation. The label invariant techniques transform the input samples. The transformed samples are labeled identical to the original sample. A slightly tilted cat0 码力 | 56 页 | 18.93 MB | 1 年前3《Efficient Deep Learning Book》[EDL] Chapter 5 - Advanced Compression Techniques
sparsify_smallest() and compress(). The sparsify_smallest() sets the absolute smallest weights in the input weight matrix to zero. The number of the absolute smallest weights is computed based on the sparsity_rate which denotes the fraction of total weights to be removed. The compress() function compresses the input array using gzip compression. It returns the compressed bytes. # Sparsify the weights by setting describes a sparsity training algorithm. It operates on a pre-trained dense network with weights and input . It receives the number of pruning rounds and the per-round fraction of weights to prune ( ). In0 码力 | 34 页 | 3.18 MB | 1 年前3
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