A Simple and Well-designed Template for Your Tensorflow Project.

Tensorflow Project Template

A simple and well designed structure is essential for any Deep Learning project, so after a lot of practice and contributing in tensorflow projects here's a tensorflow project template that combines simplcity, best practice for folder structure and good OOP design. The main idea is that there's much stuff you do every time you start your tensorflow project, so wrapping all this shared stuff will help you to change just the core idea every time you start a new tensorflow project.

So, here's a simple tensorflow template that help you get into your main project faster and just focus on your core (Model, Training, ...etc)

In a Nutshell

In a nutshell here's how to use this template, so for example assume you want to implement VGG model so you should do the following:

• In models folder create a class named VGG that inherit the "base_model" class

    class VGGModel(BaseModel):
        def __init__(self, config):
            super(VGGModel, self).__init__(config)
            #call the build_model and init_saver functions.
            self.build_model() 
            self.init_saver() 

• Override these two functions "build_model" where you implement the vgg model, and "init_saver" where you define a tensorflow saver, then call them in the initalizer.

     def build_model(self):
        # here you build the tensorflow graph of any model you want and also define the loss.
        pass
            
     def init_saver(self):
        # here you initalize the tensorflow saver that will be used in saving the checkpoints.
        self.saver = tf.train.Saver(max_to_keep=self.config.max_to_keep)

• In trainers folder create a VGG trainer that inherit from "base_train" class

    class VGGTrainer(BaseTrain):
        def __init__(self, sess, model, data, config, logger):
            super(VGGTrainer, self).__init__(sess, model, data, config, logger)

• Override these two functions "train_step", "train_epoch" where you write the logic of the training process

    def train_epoch(self):
        """
       implement the logic of epoch:
       -loop on the number of iterations in the config and call the train step
       -add any summaries you want using the summary
        """
        pass

    def train_step(self):
        """
       implement the logic of the train step
       - run the tensorflow session
       - return any metrics you need to summarize
       """
        pass

• In main file, you create the session and instances of the following objects "Model", "Logger", "Data_Generator", "Trainer", and config

    sess = tf.Session()    # create instance of the model you want    model = VGGModel(config)    # create your data generator    data = DataGenerator(config)    # create tensorboard logger    logger = Logger(sess, config)

• Pass the all these objects to the trainer object, and start your training by calling "trainer.train()"

    trainer = VGGTrainer(sess, model, data, config, logger)

    # here you train your model
    trainer.train()

You will find a template file and a simple example in the model and trainer folder that shows you how to try your first model simply.

In Details

Project architecture

Folder structure

├──  base
│   ├── base_model.py   - this file contains the abstract class of the model.
│   └── base_train.py   - this file contains the abstract class of the trainer.
│
│
├── model               - this folder contains any model of your project.
│   └── example_model.py
│
│
├── trainer             - this folder contains trainers of your project.
│   └── example_trainer.py
│   
├──  mains              - here's the main(s) of your project (you may need more than one main).
│    └── example_main.py  - here's an example of main that is responsible for the whole pipeline.

│  
├──  data _loader  
│    └── data_generator.py  - here's the data_generator that is responsible for all data handling.
│ 
└── utils
     ├── logger.py
     └── any_other_utils_you_need

Main Components

Models

---

Base model

Base model is an abstract class that must be Inherited by any model you create, the idea behind this is that there's much shared stuff between all models. The base model contains:

• Save -This function to save a checkpoint to the desk.
• Load -This function to load a checkpoint from the desk.
• Cur_epoch, Global_step counters -These variables to keep track of the current epoch and global step.
• Init_Saver An abstract function to initialize the saver used for saving and loading the checkpoint, Note: override this function in the model you want to implement.
• Build_model Here's an abstract function to define the model, Note: override this function in the model you want to implement.

Your model

Here's where you implement your model. So you should :

• Create your model class and inherit the base_model class
• override "build_model" where you write the tensorflow model you want
• override "init_save" where you create a tensorflow saver to use it to save and load checkpoint
• call the "build_model" and "init_saver" in the initializer.

Trainer

---

Base trainer

Base trainer is an abstract class that just wrap the training process.

Your trainer

Here's what you should implement in your trainer.

1. Create your trainer class and inherit the base_trainer class.
2. override these two functions "train_step", "train_epoch" where you implement the training process of each step and each epoch.

Data Loader

This class is responsible for all data handling and processing and provide an easy interface that can be used by the trainer.

Logger

This class is responsible for the tensorboard summary, in your trainer create a dictionary of all tensorflow variables you want to summarize then pass this dictionary to logger.summarize().

This class also supports reporting to Comet.ml which allows you to see all your hyper-params, metrics, graphs, dependencies and more including real-time metric. Add your API key in the configuration file:

For example: "comet_api_key": "your key here"

Comet.ml Integration

This template also supports reporting to Comet.ml which allows you to see all your hyper-params, metrics, graphs, dependencies and more including real-time metric.

Add your API key in the configuration file:

For example: "comet_api_key": "your key here"

Here's how it looks after you start training:

 

You can also link your Github repository to your comet.ml project for full version control. Here's a live page showing the example from this repo

Configuration

I use Json as configuration method and then parse it, so write all configs you want then parse it using "utils/config/process_config" and pass this configuration object to all other objects.

Main

Here's where you combine all previous part.

1. Parse the config file.
2. Create a tensorflow session.
3. Create an instance of "Model", "Data_Generator" and "Logger" and parse the config to all of them.
4. Create an instance of "Trainer" and pass all previous objects to it.
5. Now you can train your model by calling "Trainer.train()"

Future Work

• Replace the data loader part with new tensorflow dataset API.

Contributing

Any kind of enhancement or contribution is welcomed.

Acknowledgments

Thanks for my colleague Mo'men Abdelrazek for contributing in this work. and thanks for Mohamed Zahran for the review. Thanks for Jtoy for including the repo in Awesome Tensorflow.

---

Author: Mrgemy95
Source code: https://github.com/Mrgemy95/Tensorflow-Project-Template
License: Apache-2.0 license

#tensorflow 

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10 Writing steps to create a good project brief - Mobile app development

Developing a mobile application can often be more challenging than it seems at first glance. Whether you’re a developer, UI designer, project lead or CEO of a mobile-based startup, writing good project briefs prior to development is pivotal. According to Tech Jury, 87% of smartphone users spend time exclusively on mobile apps, with 18-24-year-olds spending 66% of total digital time on mobile apps. Of that, 89% of the time is spent on just 18 apps depending on individual users’ preferences, making proper app planning crucial for success.

Today’s audiences know what they want and don’t want in their mobile apps, encouraging teams to carefully write their project plans before they approach development. But how do you properly write a mobile app development brief without sacrificing your vision and staying within the initial budget? Why should you do so in the first place? Let’s discuss that and more in greater detail.

Why a Good Mobile App Project Brief Matters?

It’s worth discussing the significance of mobile app project briefs before we tackle the writing process itself. In practice, a project brief is used as a reference tool for developers to remain focused on the client’s deliverables. Approaching the development process without written and approved documentation can lead to drastic, last-minute changes, misunderstanding, as well as a loss of resources and brand reputation.

For example, developing a mobile app that filters restaurants based on food type, such as Happy Cow, means that developers should stay focused on it. Knowing that such and such features, UI elements, and API are necessary will help team members collaborate better in order to meet certain expectations. Whether you develop an app under your brand’s banner or outsource coding and design services to would-be clients, briefs can provide you with several benefits:

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1. Establish the “You” Behind the App

Depending on how “open” your project is to the public, you will want to write a detailed section about who the developers are. Elements such as company name, address, project lead, project title, as well as contact information, should be included in this introductory segment. Regardless of whether you build an in-house app or outsource developers to a client, this section is used for easy document storage and access.

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Top Android Projects with Source Code

Android Projects with Source Code – Your entry pass into the world of Android

Hello Everyone, welcome to this article, which is going to be really important to all those who’re in dilemma for their projects and the project submissions. This article is also going to help you if you’re an enthusiast looking forward to explore and enhance your Android skills. The reason is that we’re here to provide you the best ideas of Android Project with source code that you can choose as per your choice.

These project ideas are simple suggestions to help you deal with the difficulty of choosing the correct projects. In this article, we’ll see the project ideas from beginners level and later we’ll move on to intermediate to advance.

Android Projects with Source Code

Before working on real-time projects, it is recommended to create a sample hello world project in android studio and get a flavor of project creation as well as execution: Create your first android project

Android Projects for beginners

1. Calculator

Android Project: A calculator will be an easy application if you have just learned Android and coding for Java. This Application will simply take the input values and the operation to be performed from the users. After taking the input it’ll return the results to them on the screen. This is a really easy application and doesn’t need use of any particular package.

To make a calculator you’d need Android IDE, Kotlin/Java for coding, and for layout of your application, you’d need XML or JSON. For this, coding would be the same as that in any language, but in the form of an application. Not to forget creating a calculator initially will increase your logical thinking.

Once the user installs the calculator, they’re ready to use it even without the internet. They’ll enter the values, and the application will show them the value after performing the given operations on the entered operands.

Source Code: Simple Calculator Project

2. A Reminder App

Android Project: This is a good project for beginners. A Reminder App can help you set reminders for different events that you have throughout the day. It’ll help you stay updated with all your tasks for the day. It can be useful for all those who are not so good at organizing their plans and forget easily. This would be a simple application just whose task would be just to remind you of something at a particular time.

To make a Reminder App you need to code in Kotlin/Java and design the layout using XML or JSON. For the functionality of the app, you’d need to make use of AlarmManager Class and Notifications in Android.

In this, the user would be able to set reminders and time in the application. Users can schedule reminders that would remind them to drink water again and again throughout the day. Or to remind them of their medications.

3. Quiz Application

Android Project: Another beginner’s level project Idea can be a Quiz Application in android. Here you can provide the users with Quiz on various general knowledge topics. These practices will ensure that you’re able to set the layouts properly and slowly increase your pace of learning the Android application development. In this you’ll learn to use various Layout components at the same time understanding them better.

To make a quiz application you’ll need to code in Java and set layouts using xml or java whichever you prefer. You can also use JSON for the layouts whichever preferable.

In the app, questions would be asked and answers would be shown as multiple choices. The user selects the answer and gets shown on the screen if the answers are correct. In the end the final marks would be shown to the users.

4. Simple Tic-Tac-Toe

Android Project: Tic-Tac-Toe is a nice game, I guess most of you all are well aware of it. This will be a game for two players. In this android game, users would be putting X and O in the given 9 parts of a box one by one. The first player to arrange X or O in an adjacent line of three wins.

To build this game, you’d need Java and XML for Android Studio. And simply apply the logic on that. This game will have a set of three matches. So, it’ll also have a scoreboard. This scoreboard will show the final result at the end of one complete set.

Upon entering the game they’ll enter their names. And that’s when the game begins. They’ll touch one of the empty boxes present there and get their turn one by one. At the end of the game, there would be a winner declared.

Source Code: Tic Tac Toe Game Project

5. Stopwatch

Android Project: A stopwatch is another simple android project idea that will work the same as a normal handheld timepiece that measures the time elapsed between its activation and deactivation. This application will have three buttons that are: start, stop, and hold.

This application would need to use Java and XML. For this application, we need to set the timer properly as it is initially set to milliseconds, and that should be converted to minutes and then hours properly. The users can use this application and all they’d need to do is, start the stopwatch and then stop it when they are done. They can also pause the timer and continue it again when they like.

6. To Do App

Android Project: This is another very simple project idea for you as a beginner. This application as the name suggests will be a To-Do list holding app. It’ll store the users schedules and their upcoming meetings or events. In this application, users will be enabled to write their important notes as well. To make it safe, provide a login page before the user can access it.

So, this app will have a login page, sign-up page, logout system, and the area to write their tasks, events, or important notes. You can build it in android studio using Java and XML at ease. Using XML you can build the user interface as user-friendly as you can. And to store the users’ data, you can use SQLite enabling the users to even delete the data permanently.

Now for users, they will sign up and get access to the write section. Here the users can note down the things and store them permanently. Users can also alter the data or delete them. Finally, they can logout and also, login again and again whenever they like.

7. Roman to decimal converter

Android Project: This app is aimed at the conversion of Roman numbers to their significant decimal number. It’ll help to check the meaning of the roman numbers. Moreover, it will be easy to develop and will help you get your hands on coding and Android.

You need to use Android Studio, Java for coding and XML for interface. The application will take input from the users and convert them to decimal. Once it converts the Roman no. into decimal, it will show the results on the screen.

The users are supposed to just enter the Roman Number and they’ll get the decimal values on the screen. This can be a good android project for final year students.

8. Virtual Dice Roller

Android Project: Well, coming to this part that is Virtual Dice or a random no. generator. It is another simple but interesting app for computer science students. The only task that it would need to do would be to generate a number randomly. This can help people who’re often confused between two or more things.

Using a simple random number generator you can actually create something as good as this. All you’d need to do is get you hands-on OnClick listeners. And a good layout would be cherry on the cake.

The user’s task would be to set the range of the numbers and then click on the roll button. And the app will show them a randomly generated number. Isn’t it interesting ? Try soon!

9. A Scientific Calculator App

Android Project: This application is very important for you as a beginner as it will let you use your logical thinking and improve your programming skills. This is a scientific calculator that will help the users to do various calculations at ease.

To make this application you’d need to use Android Studio. Here you’d need to use arithmetic logics for the calculations. The user would need to give input to the application that will be in terms of numbers. After that, the user will give the operator as an input. Then the Application will calculate and generate the result on the user screen.

10. SMS App

Android Project: An SMS app is another easy but effective idea. It will let you send the SMS to various no. just in the same way as you use the default messaging application in your phone. This project will help you with better understanding of SMSManager in Android.

For this application, you would need to implement Java class SMSManager in Android. For the Layout you can use XML or JSON. Implementing SMSManager into the app is an easy task, so you would love this.

The user would be provided with the facility to text to whichever number they wish also, they’d be able to choose the numbers from the contact list. Another thing would be the Textbox, where they’ll enter their message. Once the message is entered they can happily click on the send button.

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Most landscapers think of their website as an online brochure. In reality of consumers have admitted to judging a company’s credibility based on their web design, making your website a virtual sales rep capable of generating massive amounts of leads and sales. If your website isn’t actively increasing leads and new landscaping contracts, it may be time for a redesign.

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Designing Mobile Apps using the latest UI Design Principles

The mobile technology world is growing at the speed of light, and the apps have become an integral part of our daily life. We can now see an influx of technology with tools that can help create mobile apps. All of them are becoming more accessible and hence people are getting on their first app making journeys. Since the mobile app industry is getting bigger and better than ever, businesses from all corners of the world are trying to develop mobile apps for their operations and marketing. Designing a mobile app for businesses is the first step, though. Company owners are in charge of the basic look and feel of the designed product. With a brilliant mobile app design, one can establish a relationship between app and user very well.

Read Blog Here: https://www.indianappdevelopers.com/blog/designing-mobile-apps-using-latest-ui-design-principles/

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