1 00:00:00,020 --> 00:00:03,770 A lesson deep learning, generative AI and transformer models. 2 00:00:03,800 --> 00:00:10,040 Deep learning, generative AI, and transformer models are pivotal concepts in the realm of artificial 3 00:00:10,040 --> 00:00:11,840 intelligence and machine learning. 4 00:00:12,050 --> 00:00:17,600 Deep learning, a subset of machine learning, involves neural networks with many layers, enabling 5 00:00:17,600 --> 00:00:20,090 systems to learn from vast amounts of data. 6 00:00:20,600 --> 00:00:26,840 These networks, inspired by the human brain, have transformed the landscape of AI by allowing machines 7 00:00:26,840 --> 00:00:33,680 to perform complex tasks such as image and speech recognition, natural language processing, and even 8 00:00:33,680 --> 00:00:35,510 playing sophisticated games. 9 00:00:36,350 --> 00:00:42,470 Generative AI, an exciting and rapidly advancing field within AI, involves creating models that can 10 00:00:42,470 --> 00:00:45,860 generate new data instances that resemble training data. 11 00:00:46,160 --> 00:00:52,370 This is particularly relevant in applications such as creating realistic images, texts, or even music. 12 00:00:53,000 --> 00:00:58,220 Generative adversarial networks and variational autoencoders are two popular frameworks in generative 13 00:00:58,220 --> 00:00:58,940 AI. 14 00:00:59,330 --> 00:01:04,970 Gans consist of two neural networks, a generator and a discriminator that compete against each other 15 00:01:04,970 --> 00:01:08,220 to produce data that is indistinguishable from real data. 16 00:01:08,520 --> 00:01:15,690 Vaes, on the other hand, use probabilistic graphical models to generate new data instances by sampling 17 00:01:15,690 --> 00:01:17,070 from a latent space. 18 00:01:17,790 --> 00:01:23,160 One of the most revolutionary advancements in recent years is the development of transformer models, 19 00:01:23,490 --> 00:01:25,530 introduced by Vaswani et al. 20 00:01:25,560 --> 00:01:31,710 The transformer model has dramatically improved the efficiency and effectiveness of natural language 21 00:01:31,710 --> 00:01:33,030 processing tasks. 22 00:01:33,510 --> 00:01:39,210 Unlike traditional recurrent neural networks and long short term memory networks, transformers do not 23 00:01:39,210 --> 00:01:45,420 require sequential data processing, allowing for parallelization and significantly reducing training 24 00:01:45,450 --> 00:01:46,110 times. 25 00:01:46,350 --> 00:01:51,570 The self-attention mechanism in transformers enables the model to weigh the importance of different 26 00:01:51,570 --> 00:01:56,760 words in a sentence, leading to better understanding and generation of human language. 27 00:01:58,710 --> 00:02:05,010 Deep learning's foundation lies in neural networks, specifically in their ability to approximate complex 28 00:02:05,010 --> 00:02:08,460 functions through multiple layers of interconnected neurons. 29 00:02:09,090 --> 00:02:14,570 These layers, each consisting of numerous neurons, perform simple calculations and pass the results 30 00:02:14,570 --> 00:02:15,710 to the next layer. 31 00:02:16,430 --> 00:02:22,160 The depth of the network defined by the number of layers allows it to learn hierarchical representations 32 00:02:22,160 --> 00:02:22,910 of data. 33 00:02:23,480 --> 00:02:29,480 For instance, in image recognition, lower layers might detect edges and textures, while higher layers 34 00:02:29,480 --> 00:02:31,490 recognize objects and faces. 35 00:02:31,880 --> 00:02:37,340 This hierarchical approach enables deep learning models to excel in tasks that require intricate pattern 36 00:02:37,340 --> 00:02:39,470 recognition and feature extraction. 37 00:02:41,660 --> 00:02:48,020 Generative AI leverages deep learning techniques to create new data that mimics real world data. 38 00:02:48,650 --> 00:02:52,730 Gans have been particularly successful in generating realistic images. 39 00:02:53,090 --> 00:02:58,700 The generator network creates images from random noise, while the discriminator network distinguishes 40 00:02:58,700 --> 00:03:03,020 between real and generated images through iterative training. 41 00:03:03,050 --> 00:03:08,780 The generator improves its ability to create convincing images, while the discriminator becomes better 42 00:03:08,780 --> 00:03:10,610 at identifying fake images. 43 00:03:10,640 --> 00:03:16,620 This adversarial process leads to the creation of high quality, realistic images that can be used in 44 00:03:16,620 --> 00:03:21,540 various applications, from art to data augmentation in machine learning. 45 00:03:22,770 --> 00:03:29,040 Vaes, another popular generative model, take a different approach by learning a probabilistic representation 46 00:03:29,040 --> 00:03:29,880 of the data. 47 00:03:30,180 --> 00:03:35,970 Vaes encode input data into a latent space from which new data samples can be generated. 48 00:03:36,270 --> 00:03:42,030 This latent space represents the underlying structure of the data, allowing the model to generate diverse 49 00:03:42,030 --> 00:03:43,560 and novel instances. 50 00:03:44,010 --> 00:03:50,340 Vaes have been used in applications such as image generation, anomaly detection, and even drug discovery, 51 00:03:50,370 --> 00:03:55,410 where generating new molecular structures can expedite the development of new medications. 52 00:03:57,000 --> 00:04:02,340 Transformers have revolutionized natural language processing by addressing the limitations of previous 53 00:04:02,340 --> 00:04:05,250 models such as RNNs and LSTMs. 54 00:04:05,820 --> 00:04:12,330 Traditional models process data sequentially, which is computationally expensive and limits parallelization. 55 00:04:12,660 --> 00:04:18,090 In contrast, transformers use a self-attention mechanism that allows them to consider all words in 56 00:04:18,090 --> 00:04:22,760 a sentence simultaneously capturing long range dependencies more effectively. 57 00:04:23,330 --> 00:04:28,310 This mechanism assigns different attention scores to each word, enabling the model to focus on the 58 00:04:28,310 --> 00:04:31,550 most relevant parts of the input when making predictions. 59 00:04:34,010 --> 00:04:39,440 The impact of transformer models is evident in their application to language models such as Bert and 60 00:04:39,440 --> 00:04:40,070 GPT. 61 00:04:40,910 --> 00:04:43,010 Bert, introduced by Devlin et al. 62 00:04:43,040 --> 00:04:48,290 Uses bidirectional training to understand the context of a word from both directions in a sentence, 63 00:04:48,290 --> 00:04:52,010 achieving state of the art performance in various NLP tasks. 64 00:04:52,520 --> 00:04:59,180 GPT, developed by OpenAI, has demonstrated remarkable capabilities in generating coherent and contextually 65 00:04:59,180 --> 00:05:00,320 relevant text. 66 00:05:00,350 --> 00:05:07,790 With GPT three being one of the most advanced models to date, deep learning, generative AI, and transformer 67 00:05:07,790 --> 00:05:12,440 models each play a crucial role in the advancement of artificial intelligence. 68 00:05:12,980 --> 00:05:18,740 Deep learning's ability to learn hierarchical representations of data has enabled breakthroughs in various 69 00:05:18,740 --> 00:05:22,130 fields, from computer vision to speech recognition. 70 00:05:22,730 --> 00:05:29,370 Generative AI through Gans and Vaes has opened up new possibilities for creating realistic and novel 71 00:05:29,370 --> 00:05:33,750 data, with applications ranging from entertainment to scientific research. 72 00:05:33,780 --> 00:05:39,330 Transformers have redefined natural language processing, enabling machines to understand and generate 73 00:05:39,360 --> 00:05:42,930 human language with unprecedented accuracy and efficiency. 74 00:05:44,940 --> 00:05:50,520 The integration of these technologies has led to significant advancements in AI applications. 75 00:05:51,000 --> 00:05:57,240 For example, in the field of healthcare, deep learning models are being used to analyze medical images, 76 00:05:57,240 --> 00:06:01,050 predict patient outcomes, and assist in drug discovery. 77 00:06:01,470 --> 00:06:07,590 Generative AI is being used to create realistic simulations of medical conditions, which can aid in 78 00:06:07,590 --> 00:06:10,890 training medical professionals and developing new treatments. 79 00:06:10,920 --> 00:06:17,040 Transformer models are being used to analyze and interpret vast amounts of medical literature, helping 80 00:06:17,040 --> 00:06:24,450 researchers stay up to date with the latest advancements and identify new research opportunities in 81 00:06:24,450 --> 00:06:25,590 the realm of finance. 82 00:06:25,620 --> 00:06:32,020 AI models are being used to detect fraudulent transactions, predict market trends, and automate trading. 83 00:06:32,590 --> 00:06:38,320 Deep learning models analyze vast amounts of financial data to identify patterns and make predictions, 84 00:06:38,320 --> 00:06:43,750 while generative models create realistic simulations of market scenarios for stress testing. 85 00:06:44,770 --> 00:06:49,660 Transformers are being used to analyze and interpret financial news and reports, providing valuable 86 00:06:49,660 --> 00:06:54,910 insights for decision making in the entertainment industry. 87 00:06:54,940 --> 00:07:00,700 AI is being used to create realistic animations, generate music, and even write scripts. 88 00:07:01,270 --> 00:07:06,580 Deep learning models analyze existing content to learn patterns and styles, while generative models 89 00:07:06,580 --> 00:07:08,650 create new and original content. 90 00:07:09,010 --> 00:07:14,200 Transformer models are being used to generate coherent and contextually relevant dialogue, enhancing 91 00:07:14,200 --> 00:07:17,080 the quality and realism of AI generated content. 92 00:07:19,240 --> 00:07:25,270 The advancements in deep learning, generative AI, and transformer models have also raised important 93 00:07:25,270 --> 00:07:27,580 ethical and governance considerations. 94 00:07:28,150 --> 00:07:34,380 The ability to generate realistic images and text has the potential for misuse, such as creating deepfakes 95 00:07:34,380 --> 00:07:36,210 or spreading misinformation. 96 00:07:37,020 --> 00:07:42,600 Ensuring the responsible and ethical use of these technologies requires robust governance frameworks 97 00:07:42,600 --> 00:07:43,650 and policies. 98 00:07:43,680 --> 00:07:50,190 AI governance professionals play a crucial role in developing and implementing these frameworks, ensuring 99 00:07:50,190 --> 00:07:53,850 that AI technologies are used responsibly and ethically. 100 00:07:54,750 --> 00:08:01,530 In conclusion, the fields of deep learning, generative AI, and transformer models represent the forefront 101 00:08:01,530 --> 00:08:04,560 of artificial intelligence research and application. 102 00:08:04,980 --> 00:08:10,980 Their combined potential is transforming industries, driving innovation and raising important ethical 103 00:08:10,980 --> 00:08:12,870 and governance considerations. 104 00:08:13,350 --> 00:08:19,350 As these technologies continue to evolve, the role of AI governance professionals in ensuring their 105 00:08:19,350 --> 00:08:23,190 responsible and ethical use will become increasingly important. 106 00:08:23,220 --> 00:08:28,830 The integration of these technologies into various applications demonstrates their transformative potential 107 00:08:28,830 --> 00:08:34,890 and highlights the need for continued research, development and governance in the field of artificial 108 00:08:34,890 --> 00:08:35,820 intelligence.