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Hyperparameter Tuning of Decision Tree Classifier Using GridSearchCV

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The models can have many hyperparameters and finding the best combination of the parameter using grid search methods. Grid search is a technique for tuning hyperparameter that may facilitate build a model and evaluate a model for every combination of algorithms parameters per grid. We might use 10 fold cross-validation to search the best value for that tuning hyperparameter. These values are called hyperparameters. To get the simplest set of hyperparameters we will use the Grid Search method.


On the Prediction of Evaporation in Arid Climate Using Machine Learning Model

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Evaporation calculations are important for the proper management of hydrological resources, such as reservoirs, lakes, and rivers. Data-driven approaches, such as adaptive neuro fuzzy inference, are getting popular in many hydrological fields. This paper investigates the effective implementation of artificial intelligence on the prediction of evaporation for agricultural area. In particular, it presents the adaptive neuro fuzzy inference system (ANFIS) and hybridization of ANFIS with three optimizers, which include the genetic algorithm (GA), firefly algorithm (FFA), and particle swarm optimizer (PSO). Six different measured weather variables are taken for the proposed modelling approach, including the maximum, minimum, and average air temperature, sunshine hours, wind speed, and relative humidity of a given location. Models are separately calibrated with a total of 86 data points over an eight-year period, from 2010 to 2017, at the specified station, located in Arizona, United States of America. Farming lands and humid climates are the reason for choosing this location. Ten statistical indices are calculated to find the best fit model. Comparisons shows that ANFIS and ANFIS–PSO are slightly better than ANFIS–FFA and ANFIS–GA. Though the hybrid ANFIS–PSO (R2= 0.99, VAF = 98.85, RMSE = 9.73, SI = 0.05) is very close to the ANFIS (R2 = 0.99, VAF = 99.04, RMSE = 8.92, SI = 0.05) model, preference can be given to ANFIS, due to its simplicity and easy operation.


The basics of artificial intelligence - Dataconomy

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Today, we look at the basics of artificial intelligence, which permeates almost every aspect of our lives. This article will explore the main concepts revolving around artificial intelligence and the answers to frequently asked questions without getting into technical complexities as much as possible. Artificial intelligence (AI) is a field of computer science that focuses on developing smart machines capable of accomplishing tasks that require human intellect. Most people immediately think of Artificial General Intelligence (AGI) when they hear about AI. It can perform anything that a human being can, but it does so far superior. However, the fact is that we are nowhere near to creating one.


Machine Learning : The Subset of Artificial Intelligence

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You may also have heard machine learning and AI used interchangeably. AI includes machine learning, but machine learning doesn't fully define AI. Machine learning and AI both have strong engineering components. You find AI and machine learning used in a great many applications today. Artificial Intelligence (AI) is a huge topic today, and it's getting bigger all the time thanks to the success of technologies such as Siri.


Council Post: Healthcare Ethics In AI: Can Software Make Ethical Decisions?

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As data analytics and other digital innovations become more widely adopted in healthcare, artificial intelligence (AI) will move from an administrative role to a clinical decision-making support role. Hospitals already use AI-based tools to develop custom care plans, check in patients for appointments and answer basic questions such as "How do I pay my bill?" AI is gaining traction as an "intelligent assistant" for physicians and clinicians. AI helps radiologists analyze images faster and organize them better. It pours through volumes of electronic medical record (EMR) data and symptoms to diagnose disease.


Diffusion Models Made Easy

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In the recent past, I have talked about GANs and VAEs as two important Generative Models that have found a lot of success and recognition. GANs work great for multiple applications however, they are difficult to train, and their output lack diversity due to several challenges such as mode collapse and vanishing gradients to name a few. Although VAEs have the most solid theoretical foundation however, the modelling of a good loss function is a challenge in VAEs which makes their output to be suboptimal. There is another set of techniques which originate from probabilistic likelihood estimation methods and take inspiration from physical phenomenon; it is called, Diffusion Models. The central idea behind Diffusion Models comes from the thermodynamics of gas molecules whereby the molecules diffuse from high density to low density areas.


Deep Reinforcement Learning for Solving Rubik's Cube

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The Rubik's Cube is a famous 3-D puzzle toy. A regular Rubik's Cube has six faces, each of which has nine coloured stickers, and the puzzle is solved when each face has a united colour. If we count one quarter (90) turn as one move and two quarter turns (a "face" turn) as two moves, the best algorithms human-invented can solve any instance of the cube in 26 moves. My target is to let the computer learn how to solve the Rubik's Cube without feeding it any human knowledge like the symmetry of the cube. The most challenging part is the Rubik's Cube has 43,252,003,274,489,856,000 possible permutations.


Sequential Decision Making - an overview

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Central to many formulations of sequence recognition are problems in sequential decision-making. Typically, a sequence of events is observed through a transformation that introduces uncertainty into the observations, and based on these observations, the recognition process produces a hypothesis of the underlying events. The events in the underlying process are constrained to follow a certain loose order, for example by a grammar, so that decisions made early in the recognition process restrict or narrow the choices that can be made later. This problem is well known and leads to the use of dynamic programming (DP) algorithms [Bel57] so that unalterable decisions can be avoided until all available information has been processed. DP strategies are central to hidden Markov model (HMM) recognizers [LMS84,Lev85,Rab89,RBH86] and have also been widely used in systems based on neural networks (e.g., [SIY 89,Bur88,BW89,SL92,BM90,FLW90]) to transform static pattern classifiers into sequence recognizers.


How Forte Transforms the Building of NLP Solution with PyTorch into Assembly Lines

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Forte introduces "DataPack", a standardized data structure for unstructured data, distilling good software engineering practices such as reusability, extensibility, and flexibility into PyTorch-based ML solutions. Machine Learning (ML) technologies are now widely used in many day-to-day applications. For example, the systems behind personal assistants like Siri or Alexa are grounded in complex ML technologies, such as Natural Language Processing, Computer Vision, and many more. While the consumer interface of Machine Learning systems may appear simple, the systems behind the scene can be much more complex than they first appear. For example, building an intelligent medical information retrieval system requires one to stitch together a diverse set of techniques.


Kaggle - Get The Best Data Science, Machine Learning Profile

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Welcome to " Kaggle - Get Best Profile in Data Science & Machine Learning " course. Kaggle is Machine Learning & Data Science community. Kaggle, a subsidiary of Google LLC, is an online community of data scientists and machine learning practitioners. Kaggle allows users to find and publish data sets, explore and build models in a web-based data-science environment, work with other data scientists and machine learning engineers, and enter competitions to solve data science challenges. Machine learning is constantly being applied to new industries and new problems. Whether you're a marketer, video game designer, or programmer, Oak Academy has a course to help you apply machine learning to your work. It's hard to imagine our lives without machine learning.