Aug 22, 2017 · Fine-Tuning. First published Tue Aug 22, 2017; substantive revision Fri Nov 12, 2021. The term “ fine-tuning ” is used to characterize sensitive dependences of facts or properties on the values of certain parameters. Technological devices are paradigmatic examples of fine-tuning. persuaded by additional examples of fine-tuning. In addition to initial conditions, there are a number of other, well-known features about the universe that are apparently just brute facts. And these too exhibit a high degree of fine-tuning. Among the fine-tuned (apparently) “brute facts” of nature are the following:This tutorial focuses on how to fine-tune Stable Diffusion using another method called Dreambooth. Unlike textual inversion method which train just the embedding without modification to the base model, Dreambooth fine-tune the whole text-to-image model such that it learns to bind a unique identifier with a specific concept (object or style). As ...This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.I have never fine-tuned any NLP model, let alone an LLM. Therefore, I had to find a simple way to get started without first obtaining a Ph.D. in machine learning. Luckily, I stumbled upon H2O’s LLM Studio tool, released just a couple of days ago, which provides a graphical interface for fine-tuning LLM models.fine-tune definition: 1. to make very small changes to something in order to make it work as well as possible: 2. to…. Learn more.verb ˈfīn-ˈtün fine-tuned; fine-tuning; fine-tunes Synonyms of fine-tune transitive verb 1 a : to adjust precisely so as to bring to the highest level of performance or effectiveness fine-tune a TV set fine-tune the format b : to improve through minor alteration or revision fine-tune the temperature of the room 2You can customize GPT-3 for your application with one command and use it immediately in our API: openai api fine_tunes.create -t. See how. It takes less than 100 examples to start seeing the benefits of fine-tuning GPT-3 and performance continues to improve as you add more data. In research published last June, we showed how fine-tuning with ...The characterization of the universe as finely tuned suggests that the occurrence of life in the universe is very sensitive to the values of certain fundamental physical constants and that other values different from the observed ones are, for some reason, improbable. [1] If the values of any of certain free parameters in contemporary physical ... persuaded by additional examples of fine-tuning. In addition to initial conditions, there are a number of other, well-known features about the universe that are apparently just brute facts. And these too exhibit a high degree of fine-tuning. Among the fine-tuned (apparently) “brute facts” of nature are the following: Oct 26, 2022 · Simply put, the idea is to supervise the fine-tuning process with the model’s own generated samples of the class noun. In practice, this means having the model fit our images and the images sampled from the visual prior of the non-fine-tuned class simultaneously. These prior-preserving images are sampled and labeled using the [class noun ... Background: Parameter-efficient Fine tuning With standard fine-tuning, we need to make a new copy of the model for each task. In the extreme case of a different model per user, we could never store 1000 different full models. If we fine tuned a subset of the parameters for each task, we could alleviate storage costs. This isIn this article, we will be fine tuning the YOLOv7 object detection model on a real-world pothole detection dataset. Benchmarked on the COCO dataset, the YOLOv7 tiny model achieves more than 35% mAP and the YOLOv7 (normal) model achieves more than 51% mAP. It is also equally important that we get good results when fine tuning such a state-of ...Fine-tuning may refer to: Fine-tuning (machine learning) Fine-tuning (physics) See also Tuning (disambiguation) This disambiguation page lists articles associated with the title Fine-tuning. If an internal link led you here, you may wish to change the link to point directly to the intended article.The Crossword Solver found 30 answers to "fine tune", 4 letters crossword clue. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. Enter the length or pattern for better results. Click the answer to find similar crossword clues . Enter a Crossword Clue. A last, optional step, is fine-tuning, which consists of unfreezing the entire model you obtained above (or part of it), and re-training it on the new data with a very low learning rate. This can potentially achieve meaningful improvements, by incrementally adapting the pretrained features to the new data.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.a. : to adjust precisely so as to bring to the highest level of performance or effectiveness. fine-tune a TV set. fine-tune the format. b. : to improve through minor alteration or revision. fine-tune the temperature of the room. 2. : to stabilize (an economy) by small-scale fiscal and monetary manipulations. Find 6 ways to say FINE-TUNE, along with antonyms, related words, and example sentences at Thesaurus.com, the world's most trusted free thesaurus. Fine-tuning Techniques. Below are some general guidelines for fine-tuning implementation: 1. The common practice is to truncate the last layer (softmax layer) of the pre-trained network and replace it with our new softmax layer that are relevant to our own problem. For example, pre-trained network on ImageNet comes with a softmax layer with ...This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.Fine-tuning is a way of applying or utilizing transfer learning. Specifically, fine-tuning is a process that takes a model that has already been trained for one given task and then tunes or tweaks the model to make it perform a second similar task.Aug 22, 2023 · Steven Heidel. Fine-tuning for GPT-3.5 Turbo is now available, with fine-tuning for GPT-4 coming this fall. This update gives developers the ability to customize models that perform better for their use cases and run these custom models at scale. Early tests have shown a fine-tuned version of GPT-3.5 Turbo can match, or even outperform, base ... A Comprehensive guide to Fine-tuning Deep Learning Models in Keras (Part II) This is Part II of a 2 part series that cover fine-tuning deep learning models in Keras. Part I states the motivation and rationale behind fine-tuning and gives a brief introduction on the common practices and techniques. This post will give a detailed step-by-step ...Aug 22, 2017 · Fine-Tuning. First published Tue Aug 22, 2017; substantive revision Fri Nov 12, 2021. The term “ fine-tuning ” is used to characterize sensitive dependences of facts or properties on the values of certain parameters. Technological devices are paradigmatic examples of fine-tuning. which the fine-tuning provides evidence for the existence of God. As impressive as the argument from fine-tuning seems to be, atheists have raised several significant objections to it. Consequently, those who are aware of these objections, or have thought of them on their own, often will find the argument unconvincing.In this tutorial you learned how to fine-tune ResNet with Keras and TensorFlow. Fine-tuning is the process of: Taking a pre-trained deep neural network (in this case, ResNet) Removing the fully-connected layer head from the network. Placing a new, freshly initialized layer head on top of the body of the network.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. And this is the code for fine-tuning and resuming from the last epoch: # Train the model again for a few epochs fine_tune_epochs = 5 total_epochs = initial_epochs + fine_tune_epochs history_tuned = model.fit (train_set, validation_data = dev_set, initial_epoch=history.epoch [-1], epochs=total_epochs,verbose=1, callbacks=callbacks) The problem ...Fine tuning is a metaphor derived from music and mechanics that is used to describe apparently improbable combinations of attributes governing physical systems. The term is commonly applied to the idea that our universe’s fundamental physical constants are uniquely and inexplicably suited to the evolution of intelligent life. berkecanrizai commented on Apr 20. Model. RAM. lambada (ppl) lambada (acc) hellaswag (acc_norm) winogrande (acc)Fine-tuning is an easy concept to understand in principle. Imagine that I asked to you pick a number between 1 and 1,000,000. You could choose anything you want, so go ahead, do it.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.This tutorial focuses on how to fine-tune Stable Diffusion using another method called Dreambooth. Unlike textual inversion method which train just the embedding without modification to the base model, Dreambooth fine-tune the whole text-to-image model such that it learns to bind a unique identifier with a specific concept (object or style). As ...This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.Part #3: Fine-tuning with Keras and Deep Learning (today’s post) I would strongly encourage you to read the previous two tutorials in the series if you haven’t yet — understanding the concept of transfer learning, including performing feature extraction via a pre-trained CNN, will better enable you to understand (and appreciate) fine-tuning.GitHub - bwconrad/vit-finetune: Fine-tuning Vision ... We will call this model the generator. Fine-tune an ada binary classifier to rate each completion for truthfulness based on a few hundred to a thousand expert labelled examples, predicting “ yes” or “ no”. Alternatively, use a generic pre-built truthfulness and entailment model we trained. We will call this model the discriminator.Training Overview ¶. Training Overview. Each task is unique, and having sentence / text embeddings tuned for that specific task greatly improves the performance. SentenceTransformers was designed in such way that fine-tuning your own sentence / text embeddings models is easy. It provides most of the building blocks that you can stick together ...The Fine-Tuning Design Argument A Scientific Argument for the Existence of God Robin Collins September 1, 1998 Intelligent Design I. Introduction The Evidence of Fine-tuning 1. Suppose we went on a mission to Mars, and found a domed structure in which everything was set up just right for life to exist.which the fine-tuning provides evidence for the existence of God. As impressive as the argument from fine-tuning seems to be, atheists have raised several significant objections to it. Consequently, those who are aware of these objections, or have thought of them on their own, often will find the argument unconvincing. This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.History. In 1913, the chemist Lawrence Joseph Henderson wrote The Fitness of the Environment, one of the first books to explore fine tuning in the universe. Henderson discusses the importance of water and the environment to living things, pointing out that life depends entirely on Earth's very specific environmental conditions, especially the prevalence and properties of water.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.Oct 26, 2022 · Simply put, the idea is to supervise the fine-tuning process with the model’s own generated samples of the class noun. In practice, this means having the model fit our images and the images sampled from the visual prior of the non-fine-tuned class simultaneously. These prior-preserving images are sampled and labeled using the [class noun ... May 10, 2022 · Fine-tuning in NLP refers to the procedure of re-training a pre-trained language model using your own custom data. As a result of the fine-tuning procedure, the weights of the original model are updated to account for the characteristics of the domain data and the task you are interested in. Image By Author. Fine-Tuning — Dive into Deep Learning 1.0.3 documentation. 14.2. Fine-Tuning. In earlier chapters, we discussed how to train models on the Fashion-MNIST training dataset with only 60000 images. We also described ImageNet, the most widely used large-scale image dataset in academia, which has more than 10 million images and 1000 objects ... Aug 30, 2023 · 3. You can now start fine-tuning the model with the following command: accelerate launch scripts/finetune.py EvolCodeLlama-7b.yaml. If everything is configured correctly, you should be able to train the model in a little more than one hour (it took me 1h 11m 44s). September 25, 2015. The appearance of fine-tuning in our universe has been observed by theists and atheists alike. Even physicist Paul Davies (who is agnostic when it comes to the notion of a Divine Designer) readily stipulates, “Everyone agrees that the universe looks as if it was designed for life.”. Oxford philosopher John Leslie agrees ...This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. Apr 9, 2023 · The process of transfer learning involves using a pre-trained model as a starting point, and fine-tuning involves further training the pre-trained model on the new task by updating its weights. By leveraging the knowledge gained through transfer learning and fine-tuning, the training process can be improved and made faster compared to starting ... Fine-tuning doesn't need to imply a fine-tuner, but rather that there was a physical mechanism underlying why something appears finely-tuned today. The effect may look like an unlikely coincidence ...This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. Sep 25, 2015 · September 25, 2015. The appearance of fine-tuning in our universe has been observed by theists and atheists alike. Even physicist Paul Davies (who is agnostic when it comes to the notion of a Divine Designer) readily stipulates, “Everyone agrees that the universe looks as if it was designed for life.”. Oxford philosopher John Leslie agrees ... Fine-Tuning — Dive into Deep Learning 1.0.3 documentation. 14.2. Fine-Tuning. In earlier chapters, we discussed how to train models on the Fashion-MNIST training dataset with only 60000 images. We also described ImageNet, the most widely used large-scale image dataset in academia, which has more than 10 million images and 1000 objects ... Let’s see how we can do this on the fly during fine-tuning using a special data collator. Fine-tuning DistilBERT with the Trainer API Fine-tuning a masked language model is almost identical to fine-tuning a sequence classification model, like we did in Chapter 3. The only difference is that we need a special data collator that can randomly ...Apr 27, 2020 · In this tutorial you learned how to fine-tune ResNet with Keras and TensorFlow. Fine-tuning is the process of: Taking a pre-trained deep neural network (in this case, ResNet) Removing the fully-connected layer head from the network. Placing a new, freshly initialized layer head on top of the body of the network. This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.Fine-tuning improves on few-shot learning by training on many more examples than can fit in the prompt, letting you achieve better results on a wide number of tasks. Once a model has been fine-tuned, you won't need to provide as many examples in the prompt. This saves costs and enables lower-latency requests. fine-tuning（ファインチューニング）とは、機械学習モデルを特定のタスクやデータセットに対してより適切に動作させるために、既存の学習済みモデルを少し調整するプロセスです。. 機械学習の分野では、大規模なデータセットで事前に訓練されたモデル ...Aug 30, 2023 · 3. You can now start fine-tuning the model with the following command: accelerate launch scripts/finetune.py EvolCodeLlama-7b.yaml. If everything is configured correctly, you should be able to train the model in a little more than one hour (it took me 1h 11m 44s). The cost of fine-tuning a model is 50% of the cost of the model being fine-tuned. The current fine-tuning rates for GPT-3 models vary based on the specific model being fine-tuned, similar to the ...Steven Heidel. Fine-tuning for GPT-3.5 Turbo is now available, with fine-tuning for GPT-4 coming this fall. This update gives developers the ability to customize models that perform better for their use cases and run these custom models at scale. Early tests have shown a fine-tuned version of GPT-3.5 Turbo can match, or even outperform, base ...Fine-tuning may refer to: Fine-tuning (machine learning) Fine-tuning (physics) See also Tuning (disambiguation) This disambiguation page lists articles associated with the title Fine-tuning. If an internal link led you here, you may wish to change the link to point directly to the intended article.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. You can customize GPT-3 for your application with one command and use it immediately in our API: openai api fine_tunes.create -t. See how. It takes less than 100 examples to start seeing the benefits of fine-tuning GPT-3 and performance continues to improve as you add more data. In research published last June, we showed how fine-tuning with ...persuaded by additional examples of fine-tuning. In addition to initial conditions, there are a number of other, well-known features about the universe that are apparently just brute facts. And these too exhibit a high degree of fine-tuning. Among the fine-tuned (apparently) “brute facts” of nature are the following:This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. Authors Jacob Devlin et al write that fine-tuning BERT is “straightforward”, simply by adding one additional layer after the final BERT layer and training the entire network for just a few epochs. The authors demonstrate strong performance on the standard NLP benchmark problems GLUE, SQuAD, and SWAG, which probe for different aspects of ...Fine-Tuning First published Tue Aug 22, 2017; substantive revision Fri Nov 12, 2021 The term “ fine-tuning ” is used to characterize sensitive dependences of facts or properties on the values of certain parameters. Technological devices are paradigmatic examples of fine-tuning.Oct 3, 2016 · Fine-tuning Techniques. Below are some general guidelines for fine-tuning implementation: 1. The common practice is to truncate the last layer (softmax layer) of the pre-trained network and replace it with our new softmax layer that are relevant to our own problem. For example, pre-trained network on ImageNet comes with a softmax layer with ... Fine-tuning doesn't need to imply a fine-tuner, but rather that there was a physical mechanism underlying why something appears finely-tuned today. The effect may look like an unlikely coincidence ...fine-tune definition: 1. to make very small changes to something in order to make it work as well as possible: 2. to…. Learn more.verb [ T ] uk / ˌfaɪnˈtʃuːn / us / ˌfaɪnˈtuːn / to make very small changes to something in order to make it work as well as possible: She spent hours fine-tuning her speech. SMART Vocabulary: related words and phrases Correcting and mending calibration clean (someone/something) up correction fiddle fiddle (around) with something fine-tune mess This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.
This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. . 21efrszonso
Transfer Learning and Fine-tuning is one of the important methods to make big-scale model with a small amount of data. Usually, deep learning model needs a massive amount of data for training. But ...Fine-tuning CLIP. To improve CLIP’s performance on the extraction of product features, we fine-tuned CLIP for the domain of product images. In order to fine-tune CLIP, multiple tests were done ...And this is the code for fine-tuning and resuming from the last epoch: # Train the model again for a few epochs fine_tune_epochs = 5 total_epochs = initial_epochs + fine_tune_epochs history_tuned = model.fit (train_set, validation_data = dev_set, initial_epoch=history.epoch [-1], epochs=total_epochs,verbose=1, callbacks=callbacks) The problem ...Fine-tuning for the stylistic continuation tasks is sample efficient: 5,000 human samples suffice for strong performance according to humans. For summarization, models trained with 60,000 comparisons learn to copy whole sentences from the input while skipping irrelevant preamble; this copying is an easy way to ensure accurate summaries, but may ...Apr 27, 2020 · In this tutorial you learned how to fine-tune ResNet with Keras and TensorFlow. Fine-tuning is the process of: Taking a pre-trained deep neural network (in this case, ResNet) Removing the fully-connected layer head from the network. Placing a new, freshly initialized layer head on top of the body of the network. fine-tuned: [adjective] precisely adjusted for the highest level of performance, efficiency, or effectiveness.This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.The fine-tuning argument is a specific application of the teleological argument for the existence of God. A teleological argument seeks to demonstrate that the appearance of purpose or design is itself evidence of a designer. The counter to such a claim suggests that what “appears” to be designed is simply random coincidence.The cost of fine-tuning a model is 50% of the cost of the model being fine-tuned. The current fine-tuning rates for GPT-3 models vary based on the specific model being fine-tuned, similar to the ...Finetuning synonyms, Finetuning pronunciation, Finetuning translation, English dictionary definition of Finetuning. tr.v. fine-tuned , fine-tun·ing , fine-tunes To make small adjustments in for optimal performance or effectiveness: fine-tuned her investing strategy to...This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.Set Up Summary. I fine-tuned the base davinci model for many different n_epochs values, and, for those who want to know the bottom line and not read the entire tutorial and examples, the “bottom line” is that if you set your n_epochs value high enough (and your JSONL data is properly formatted), you can get great results fine-tuning even with a single-line JSONL file!TL;DR. This link provides the code repository that contains two readily downloadable fine-tuned GPT-2 weights, a quick start guide of how to customize Autocoder, and a list of future pointers to this project. Although this blog looks like a technical introduction to Autocoder, I also by the way talk about a lot of relevant stuff, such as nice work, status quo, and future directions in NLP.The Fine-Tuning Argument Neil A. Manson* The University of Mississippi Abstract The Fine-Tuning Argument (FTA) is a variant of the Design Argument for the existence of God. In this paper the evidence of fine-tuning is explained and the Fine-Tuning Design Argument for God is presented. Then two objections are covered.Jan 24, 2022 · There are three main workflows for using deep learning within ArcGIS: Inferencing with existing, pretrained deep learning packages (dlpks) Fine-tuning an existing model. Training a deep learning model from scratch. For a detailed guide on the first workflow, using the pretrained models, see Deep Learning with ArcGIS Pro Tips & Tricks Part 2. This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt. This guide is intended for users of the new OpenAI fine-tuning API. If you are a legacy fine-tuning user, please refer to our legacy fine-tuning guide. Fine-tuning lets you get more out of the models available through the API by providing: Higher quality results than prompting. Ability to train on more examples than can fit in a prompt.Oct 26, 2022 · Simply put, the idea is to supervise the fine-tuning process with the model’s own generated samples of the class noun. In practice, this means having the model fit our images and the images sampled from the visual prior of the non-fine-tuned class simultaneously. These prior-preserving images are sampled and labeled using the [class noun ... Fine-Tuning: Unfreeze a few of the top layers of a frozen model base and jointly train both the newly-added classifier layers and the last layers of the base model. This allows us to "fine-tune" the higher-order feature representations in the base model in order to make them more relevant for the specific task..