The recent Transformer neural network is considered to be good at extracting the global information by employing only self-attention mechanism. Thus, in this paper, we design a Transformer-based neural network for answer selection, where we deploy a bidirectional long short-term memory (BiLSTM) behind the Transformer to acquire both global ...Jan 14, 2021 · To fully use the bilingual associative knowledge learned from the bilingual parallel corpus through the Transformer model, we propose a Transformer-based unified neural network for quality estimation (TUNQE) model, which is a combination of the bottleneck layer of the Transformer model with a bidirectional long short-term memory network (Bi ... Sep 14, 2021 · Predicting the behaviors of other agents on the road is critical for autonomous driving to ensure safety and efficiency. However, the challenging part is how to represent the social interactions between agents and output different possible trajectories with interpretability. In this paper, we introduce a neural prediction framework based on the Transformer structure to model the relationship ... A Context-Integrated Transformer-Based Neural Network for Auction Design. One of the central problems in auction design is developing an incentive-compatible mechanism that maximizes the auctioneer's expected revenue. While theoretical approaches have encountered bottlenecks in multi-item auctions, recently, there has been much progress on ...Transformers are a type of neural network architecture that have been gaining popularity. Transformers were recently used by OpenAI in their language models, and also used recently by DeepMind for AlphaStar — their program to defeat a top professional Starcraft player.Sep 5, 2022 · Vaswani et al. proposed a simple yet effective change to the Neural Machine Translation models. An excerpt from the paper best describes their proposal. We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely. Apr 3, 2020 · In this paper, a novel Transformer-based neural network (TBNN) model is proposed to deal with the processed sensor signals for tool wear estimation. It is observed from figure 3 that the proposed model is mainly composed of two parts, which are (1) encoder, and (2) decoder. Firstly, the raw multi-sensor data is processed by temporal feature ... Sep 5, 2022 · Vaswani et al. proposed a simple yet effective change to the Neural Machine Translation models. An excerpt from the paper best describes their proposal. We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely. This paper presents the first-ever transformer-based neural machine translation model for the Kurdish language by utilizing vocabulary dictionary units that share vocabulary across the dataset.We present SMILES-embeddings derived from the internal encoder state of a Transformer [1] model trained to canonize SMILES as a Seq2Seq problem. Using a CharNN [2] architecture upon the embeddings results in higher quality interpretable QSAR/QSPR models on diverse benchmark datasets including regression and classification tasks. The proposed Transformer-CNN method uses SMILES augmentation for ...Jan 26, 2021 · Deep Neural Networks can learn linear and periodic components on their own, during training (we will use Time 2 Vec later). That said, I would advise against seasonal decomposition as a preprocessing step. Other decisions such as calculating aggregates and pairwise differences, depend on the nature of your data, and what you want to predict. Recently, Transformer-based models demonstrated state-of-the-art results on neural machine translation tasks 34,35. We adopt Transformer to generate molecules. We adopt Transformer to generate ...Jan 15, 2023 · This paper presents the first-ever transformer-based neural machine translation model for the Kurdish language by utilizing vocabulary dictionary units that share vocabulary across the dataset. A transformer is a deep learning architecture that relies on the parallel multi-head attention mechanism. [1] The modern transformer was proposed in the 2017 paper titled 'Attention Is All You Need' by Ashish Vaswani et al., Google Brain team.1. What is the Transformer model? 2. Transformer model: general architecture 2.1. The Transformer encoder 2.2. The Transformer decoder 3. What is the Transformer neural network? 3.1. Transformer neural network design 3.2. Feed-forward network 4. Functioning in brief 4.1. Multi-head attention 4.2. Masked multi-head attention 4.3. Residual connectionBackground We developed transformer-based deep learning models based on natural language processing for early risk assessment of Alzheimer’s disease from the picture description test. Methods The lack of large datasets poses the most important limitation for using complex models that do not require feature engineering. Transformer-based pre-trained deep language models have recently made a ...A hybrid deep network based on the convolutional neural network and long-term short-term memory network is proposed to extract and learn the spatial and temporal features of the MI signal ...May 2, 2022 · In recent years, the transformer model has become one of the main highlights of advances in deep learning and deep neural networks. It is mainly used for advanced applications in natural language processing. Google is using it to enhance its search engine results. OpenAI has used transformers to create its famous GPT-2 and GPT-3 models. We present SMILES-embeddings derived from the internal encoder state of a Transformer [1] model trained to canonize SMILES as a Seq2Seq problem. Using a CharNN [2] architecture upon the embeddings results in higher quality interpretable QSAR/QSPR models on diverse benchmark datasets including regression and classification tasks. The proposed Transformer-CNN method uses SMILES augmentation for ...Transformers are a type of neural network architecture that have been gaining popularity. Transformers were recently used by OpenAI in their language models, and also used recently by DeepMind for AlphaStar — their program to defeat a top professional Starcraft player.Jul 20, 2021 · 6 Citations 25 Altmetric Metrics Abstract We developed a Transformer-based artificial neural approach to translate between SMILES and IUPAC chemical notations: Struct2IUPAC and IUPAC2Struct.... May 2, 2022 · In recent years, the transformer model has become one of the main highlights of advances in deep learning and deep neural networks. It is mainly used for advanced applications in natural language processing. Google is using it to enhance its search engine results. OpenAI has used transformers to create its famous GPT-2 and GPT-3 models. Feb 21, 2019 · The recent Transformer neural network is considered to be good at extracting the global information by employing only self-attention mechanism. Thus, in this paper, we design a Transformer-based neural network for answer selection, where we deploy a bidirectional long short-term memory (BiLSTM) behind the Transformer to acquire both global ... Liu JNK, Hu Y, You JJ, Chan PW (2014). Deep neural network based feature representation for weather forecasting.In: Proceedings on the International Conference on Artificial Intelligence (ICAI), 1. Majhi B, Naidu D, Mishra AP, Satapathy SC (2020) Improved prediction of daily pan evaporation using Deep-LSTM model. Neural Comput Appl 32(12):7823 ...Transformers are a type of neural network architecture that have been gaining popularity. Transformers were recently used by OpenAI in their language models, and also used recently by DeepMind for AlphaStar — their program to defeat a top professional Starcraft player.Jan 26, 2022 · To the best of our knowledge, this is the first study to model the sentiment corpus as a heterogeneous graph and learn document and word embeddings using the proposed sentiment graph transformer neural network. In addition, our model offers an easy mechanism to fuse node positional information for graph datasets using Laplacian eigenvectors. Recurrent Neural networks try to achieve similar things, but because they suffer from short term memory. Transformers can be better especially if you want to encode or generate long sequences. Because of the transformer architecture, the natural language processing industry can achieve unprecedented results.ing [8] have been widely used for deep neural networks in the computer vision field. It has also been used to accelerate Transformer-based DNNs due to the enormous parameters or model size of the Transformer. With weight pruning, the size of the Transformer can be significantly reduced without much prediction accuracy degradation [9 ...Recently, Transformer-based models demonstrated state-of-the-art results on neural machine translation tasks 34,35. We adopt Transformer to generate molecules. We adopt Transformer to generate ...Jun 10, 2021 · A hybrid deep network based on the convolutional neural network and long-term short-term memory network is proposed to extract and learn the spatial and temporal features of the MI signal ... To fully use the bilingual associative knowledge learned from the bilingual parallel corpus through the Transformer model, we propose a Transformer-based unified neural network for quality estimation (TUNQE) model, which is a combination of the bottleneck layer of the Transformer model with a bidirectional long short-term memory network (Bi ...May 1, 2022 · This paper proposes a novel Transformer based deep neural network, ECG DETR, that performs arrhythmia detection on single-lead continuous ECG segments. By utilizing inter-heartbeat dependencies, our proposed scheme achieves competitive heartbeat positioning and classification performance compared with the existing works. Considering the convolution-based neural networks’ lack of utilization of global information, we choose a transformer to devise a Siamese network for change detection. We also use a transformer to design a pyramid pooling module to help the network maintain more features.The dominant sequence transduction models are based on complex recurrent or convolutional neural networks in an encoder-decoder configuration. The best performing models also connect the encoder and decoder through an attention mechanism. We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely ...Keywords Transformer, graph neural networks, molecule 1 Introduction We (GNNLearner team) participated in one of the KDD Cup challenge, PCQM4M-LSC, which is to predict the DFT-calculated HOMO-LUMO energy gap of molecules based on the input molecule [Hu et al., 2021]. In quantum Deep Neural Networks can learn linear and periodic components on their own, during training (we will use Time 2 Vec later). That said, I would advise against seasonal decomposition as a preprocessing step. Other decisions such as calculating aggregates and pairwise differences, depend on the nature of your data, and what you want to predict.Jun 7, 2021 · A Text-to-Speech Transformer in TensorFlow 2. Implementation of a non-autoregressive Transformer based neural network for Text-to-Speech (TTS). This repo is based, among others, on the following papers: Neural Speech Synthesis with Transformer Network; FastSpeech: Fast, Robust and Controllable Text to Speech vision and achieved brilliant results [11]. So far, Transformer based models become very powerful in many fields with wide applicability, and are more in-terpretable compared with other neural networks[38]. Transformer has excellent feature extraction ability, and the extracted features have better performance on downstream tasks.State-of-the-art Machine Learning for PyTorch, TensorFlow, and JAX. 🤗 Transformers provides APIs and tools to easily download and train state-of-the-art pretrained models. Using pretrained models can reduce your compute costs, carbon footprint, and save you the time and resources required to train a model from scratch. Jul 20, 2021 · 6 Citations 25 Altmetric Metrics Abstract We developed a Transformer-based artificial neural approach to translate between SMILES and IUPAC chemical notations: Struct2IUPAC and IUPAC2Struct.... Apr 17, 2021 · Deep learning is also a promising approach towards the detection and classification of fake news. Kaliyar et al. proved the superiority of using deep neural networks as opposed to traditional machine learning algorithms in the detection. The use of deep diffusive neural networks for the same task has been demonstrated in Zhang et al. . Jun 21, 2020 · Conclusion of the three models. Although Transformer is proved as the best model to handle really long sequences, the RNN and CNN based model could still work very well or even better than Transformer in the short-sequences task. Like what is proposed in the paper of Xiaoyu et al. (2019) [4], a CNN based model could outperforms all other models ... Recently, Transformer-based models demonstrated state-of-the-art results on neural machine translation tasks 34,35. We adopt Transformer to generate molecules. We adopt Transformer to generate ...A transformer model is a neural network that learns context and thus meaning by tracking relationships in sequential data like the words in this sentence. March 25, 2022 by Rick Merritt If you want to ride the next big wave in AI, grab a transformer. They’re not the shape-shifting toy robots on TV or the trash-can-sized tubs on telephone poles.Dec 30, 2022 · Liu JNK, Hu Y, You JJ, Chan PW (2014). Deep neural network based feature representation for weather forecasting.In: Proceedings on the International Conference on Artificial Intelligence (ICAI), 1. Majhi B, Naidu D, Mishra AP, Satapathy SC (2020) Improved prediction of daily pan evaporation using Deep-LSTM model. Neural Comput Appl 32(12):7823 ... Transformer-based encoder-decoder models are the result of years of research on representation learning and model architectures. This notebook provides a short summary of the history of neural encoder-decoder models. For more context, the reader is advised to read this awesome blog post by Sebastion Ruder.Predicting the behaviors of other agents on the road is critical for autonomous driving to ensure safety and efficiency. However, the challenging part is how to represent the social interactions between agents and output different possible trajectories with interpretability. In this paper, we introduce a neural prediction framework based on the Transformer structure to model the relationship ...denoising performance. Fortunately, transformer neural network can resolve the long-dependency problem effectively and operate well in parallel, showing good performance on many natural language processing tasks [13]. In [14], the authors proposed a transformer-based network for speech enhancement while it has relatively large model size.Jan 11, 2021 · Recently, Transformer-based models demonstrated state-of-the-art results on neural machine translation tasks 34,35. We adopt Transformer to generate molecules. We adopt Transformer to generate ... Background We developed transformer-based deep learning models based on natural language processing for early risk assessment of Alzheimer’s disease from the picture description test. Methods The lack of large datasets poses the most important limitation for using complex models that do not require feature engineering. Transformer-based pre-trained deep language models have recently made a ...Pre-process the data. Initialize the HuggingFace tokenizer and model. Encode input data to get input IDs and attention masks. Build the full model architecture (integrating the HuggingFace model) Setup optimizer, metrics, and loss. Training. We will cover each of these steps — but focusing primarily on steps 2–4. 1.We propose a novel recognition model which can effectively identify the vehicle colors. We skillfully interpolate the Transformer into recognition model to enhance the feature learning capacity of conventional neural networks, and specially design a hierarchical loss function through in-depth analysis of the proposed dataset.Abstract. Combining multiple models is a well-known technique to improve predictive performance in challenging tasks such as object detection in UAV imagery. In this paper, we propose fusion of transformer-based and convolutional neural network-based (CNN) models with two approaches. First, we ensemble Swin Transformer and DetectoRS with ResNet ...In this paper, we propose a transformer-based architecture, called two-stage transformer neural network (TSTNN) for end-to-end speech denoising in the time domain. The proposed model is composed of an encoder, a two-stage transformer module (TSTM), a masking module and a decoder. The encoder maps input noisy speech into feature representation. The TSTM exploits four stacked two-stage ...Aug 16, 2021 · This mechanism has replaced the convolutional neural network used in the case of AlphaFold 1. DALL.E & CLIP. In January this year, OpenAI released a Transformer based text-to-image engine called DALL.E, which is essentially a visual idea generator. With the text prompt as an input, it generates images to match the prompt. Aug 16, 2021 · This mechanism has replaced the convolutional neural network used in the case of AlphaFold 1. DALL.E & CLIP. In January this year, OpenAI released a Transformer based text-to-image engine called DALL.E, which is essentially a visual idea generator. With the text prompt as an input, it generates images to match the prompt. Jun 28, 2022 · The transformer neural network is a novel architecture that aims to solve sequence-to-sequence tasks while handling long-range dependencies with ease. It was first proposed in the paper “Attention Is All You Need.” and is now a state-of-the-art technique in the field of NLP. A hybrid deep network based on the convolutional neural network and long-term short-term memory network is proposed to extract and learn the spatial and temporal features of the MI signal ...Sep 23, 2022 · Ravi et al. (2019) analyze the application of artificial neural networks, support vector machines, decision trees and plain Bayes in transformer fault diagnosis from the literature spanning 10 years. The authors point out that the development of new algorithms is necessary to improve diagnostic accuracy. Jun 25, 2021 · Build the model. Our model processes a tensor of shape (batch size, sequence length, features) , where sequence length is the number of time steps and features is each input timeseries. You can replace your classification RNN layers with this one: the inputs are fully compatible! We include residual connections, layer normalization, and dropout. Liu JNK, Hu Y, You JJ, Chan PW (2014). Deep neural network based feature representation for weather forecasting.In: Proceedings on the International Conference on Artificial Intelligence (ICAI), 1. Majhi B, Naidu D, Mishra AP, Satapathy SC (2020) Improved prediction of daily pan evaporation using Deep-LSTM model. Neural Comput Appl 32(12):7823 ...Oct 4, 2021 · Download a PDF of the paper titled HyperTeNet: Hypergraph and Transformer-based Neural Network for Personalized List Continuation, by Vijaikumar M and 2 other authors Download PDF Abstract: The personalized list continuation (PLC) task is to curate the next items to user-generated lists (ordered sequence of items) in a personalized way. Jan 26, 2021 · Deep Neural Networks can learn linear and periodic components on their own, during training (we will use Time 2 Vec later). That said, I would advise against seasonal decomposition as a preprocessing step. Other decisions such as calculating aggregates and pairwise differences, depend on the nature of your data, and what you want to predict. At the heart of the algorithm used here is a multimodal text-based autoregressive transformer architecture that builds a set of interaction graphs using deep multi-headed attention, which serve as the input for a deep graph convolutional neural network to form a nested transformer-graph architecture [Figs. 2(a) and 2(b)].Transformer networks have outperformed recurrent and convolutional neural networks in terms of accuracy in various sequential tasks. However, memory and compute bottlenecks prevent transformer networks from scaling to long sequences due to their high execution time and energy consumption. Different neural attention mechanisms have been proposed to lower computational load but still suffer from ...Considering the convolution-based neural networks’ lack of utilization of global information, we choose a transformer to devise a Siamese network for change detection. We also use a transformer to design a pyramid pooling module to help the network maintain more features.A recent article presented SetQuence and SetOmic (Jurenaite et al., 2022), which applied transformer-based deep neural networks on mutome and transcriptome together, showing superior accuracy and robustness over previous baselines (including GIT) on tumor classification tasks.Neural networks, in particular recurrent neural networks (RNNs), are now at the core of the leading approaches to language understanding tasks such as language modeling, machine translation and question answering. In “ Attention Is All You Need ”, we introduce the Transformer, a novel neural network architecture based on a self-attention ...Oct 1, 2022 · In this study, we propose a novel neural network model (DCoT) with depthwise convolution and Transformer encoders for EEG-based emotion recognition by exploring the dependence of emotion recognition on each EEG channel and visualizing the captured features. Then we conduct subject-dependent and subject-independent experiments on a benchmark ... Pre-process the data. Initialize the HuggingFace tokenizer and model. Encode input data to get input IDs and attention masks. Build the full model architecture (integrating the HuggingFace model) Setup optimizer, metrics, and loss. Training. We will cover each of these steps — but focusing primarily on steps 2–4. 1.Jun 28, 2022 · The transformer neural network is a novel architecture that aims to solve sequence-to-sequence tasks while handling long-range dependencies with ease. It was first proposed in the paper “Attention Is All You Need.” and is now a state-of-the-art technique in the field of NLP. This mechanism has replaced the convolutional neural network used in the case of AlphaFold 1. DALL.E & CLIP. In January this year, OpenAI released a Transformer based text-to-image engine called DALL.E, which is essentially a visual idea generator. With the text prompt as an input, it generates images to match the prompt.A transformer model is a neural network that learns context and thus meaning by tracking relationships in sequential data like the words in this sentence. March 25, 2022 by Rick Merritt If you want to ride the next big wave in AI, grab a transformer. They’re not the shape-shifting toy robots on TV or the trash-can-sized tubs on telephone poles.Sep 1, 2022 · Since there is no reconstruction of the EEG data format, the temporal and spatial properties of the EEG data cannot be extracted efficiently. To address the aforementioned issues, this research proposes a multi-channel EEG emotion identification model based on the parallel transformer and three-dimensional convolutional neural networks (3D-CNN). Jun 3, 2023 · Transformers are deep neural networks that replace CNNs and RNNs with self-attention. Self attention allows Transformers to easily transmit information across the input sequences. As explained in the Google AI Blog post: Dec 14, 2021 · We highlight a relatively new group of neural networks known as Transformers (Vaswani et al., 2017) and explain why these models are suitable for construct-specific AIG and subsequently propose a method for fine-tuning such models to this task. Finally, we provide evidence for the validity of this method by comparing human- and machine-authored ... Transformer-based encoder-decoder models are the result of years of research on representation learning and model architectures. This notebook provides a short summary of the history of neural encoder-decoder models. For more context, the reader is advised to read this awesome blog post by Sebastion Ruder.Aug 29, 2023 · At the heart of the algorithm used here is a multimodal text-based autoregressive transformer architecture that builds a set of interaction graphs using deep multi-headed attention, which serve as the input for a deep graph convolutional neural network to form a nested transformer-graph architecture [Figs. 2(a) and 2(b)]. Sep 5, 2022 · Vaswani et al. proposed a simple yet effective change to the Neural Machine Translation models. An excerpt from the paper best describes their proposal. We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely. A Text-to-Speech Transformer in TensorFlow 2. Implementation of a non-autoregressive Transformer based neural network for Text-to-Speech (TTS). This repo is based, among others, on the following papers: Neural Speech Synthesis with Transformer Network; FastSpeech: Fast, Robust and Controllable Text to SpeechA Transformer is a type of neural network architecture. To recap, neural nets are a very effective type of model for analyzing complex data types like images, videos, audio, and text. But there are different types of neural networks optimized for different types of data. For example, for analyzing images, we’ll typically use convolutional ...Context-Integrated Transformer-based neural Network architecture as the parameterized mechanism to be optimized. CITransNet incorporates the bidding pro le along with the bidder-contexts and item-contexts to develop an auction mechanism. It is built upon the transformer architectureVaswani et al.[2017], which can capture the complex mutual in A Context-Integrated Transformer-Based Neural Network for Auction Design. One of the central problems in auction design is developing an incentive-compatible mechanism that maximizes the auctioneer's expected revenue. While theoretical approaches have encountered bottlenecks in multi-item auctions, recently, there has been much progress on ...Before the introduction of the Transformer model, the use of attention for neural machine translation was implemented by RNN-based encoder-decoder architectures. The Transformer model revolutionized the implementation of attention by dispensing with recurrence and convolutions and, alternatively, relying solely on a self-attention mechanism. We will first focus on the Transformer attention ...We highlight a relatively new group of neural networks known as Transformers (Vaswani et al., 2017) and explain why these models are suitable for construct-specific AIG and subsequently propose a method for fine-tuning such models to this task. Finally, we provide evidence for the validity of this method by comparing human- and machine-authored ...Many Transformer-based NLP models were specifically created for transfer learning [ 3, 4]. Transfer learning describes an approach where a model is first pre-trained on large unlabeled text corpora using self-supervised learning [5]. Then it is minimally adjusted during fine-tuning on a specific NLP (downstream) task [3].This paper proposes a novel Transformer based deep neural network, ECG DETR, that performs arrhythmia detection on single-lead continuous ECG segments. By utilizing inter-heartbeat dependencies, our proposed scheme achieves competitive heartbeat positioning and classification performance compared with the existing works.Oct 11, 2022 · A Transformer-based deep neural network model for SSVEP classification Jianbo Chen a, Yangsong Zhanga,∗, Yudong Pan , Peng Xub,∗, Cuntai Guanc aLaboratory for Brain Science and Medical Artificial Intelligence, School of Computer Science and Technology, Southwest University of Science and Technology, Mianyang, China Conclusion of the three models. Although Transformer is proved as the best model to handle really long sequences, the RNN and CNN based model could still work very well or even better than Transformer in the short-sequences task. Like what is proposed in the paper of Xiaoyu et al. (2019) [4], a CNN based model could outperforms all other models ...A transformer is a deep learning architecture that relies on the parallel multi-head attention mechanism. [1] The modern transformer was proposed in the 2017 paper titled 'Attention Is All You Need' by Ashish Vaswani et al., Google Brain team.We present SMILES-embeddings derived from the internal encoder state of a Transformer [1] model trained to canonize SMILES as a Seq2Seq problem. Using a CharNN [2] architecture upon the embeddings results in higher quality interpretable QSAR/QSPR models on diverse benchmark datasets including regression and classification tasks. The proposed Transformer-CNN method uses SMILES augmentation for ...Oct 1, 2022 · In this study, we propose a novel neural network model (DCoT) with depthwise convolution and Transformer encoders for EEG-based emotion recognition by exploring the dependence of emotion recognition on each EEG channel and visualizing the captured features. Then we conduct subject-dependent and subject-independent experiments on a benchmark ... Recurrent Neural networks try to achieve similar things, but because they suffer from short term memory. Transformers can be better especially if you want to encode or generate long sequences. Because of the transformer architecture, the natural language processing industry can achieve unprecedented results.Sep 1, 2022 · Since there is no reconstruction of the EEG data format, the temporal and spatial properties of the EEG data cannot be extracted efficiently. To address the aforementioned issues, this research proposes a multi-channel EEG emotion identification model based on the parallel transformer and three-dimensional convolutional neural networks (3D-CNN). A recent article presented SetQuence and SetOmic (Jurenaite et al., 2022), which applied transformer-based deep neural networks on mutome and transcriptome together, showing superior accuracy and robustness over previous baselines (including GIT) on tumor classification tasks.Oct 1, 2022 · In this study, we propose a novel neural network model (DCoT) with depthwise convolution and Transformer encoders for EEG-based emotion recognition by exploring the dependence of emotion recognition on each EEG channel and visualizing the captured features. Then we conduct subject-dependent and subject-independent experiments on a benchmark ... 1. What is the Transformer model? 2. Transformer model: general architecture 2.1. The Transformer encoder 2.2. The Transformer decoder 3. What is the Transformer neural network? 3.1. Transformer neural network design 3.2. Feed-forward network 4. Functioning in brief 4.1. Multi-head attention 4.2. Masked multi-head attention 4.3. Residual connection .