prediction


YOLO: Core ML versus MPSNNGraph

@machinelearnbot

The Core ML conversion tools do not support Darknet, so we'll first convert the Darknet files to Keras format. However, as I'm writing this the Core ML conversion tools only support Keras version 1.2.2. Now that we have YOLO in a format that the Core ML conversion tools support, we can write a Python script to turn it into the .mlmodel Note: You do not need to perform these steps if you just want to run the demo app. This means we need to put our input images into a CVPixelBuffer object somehow, and also resize this pixel buffer to 416 416 pixels -- or Core ML won't accept it.


The world's first protein database for Machine Learning and AI

@machinelearnbot

I am incredibly proud and excited to present the very first public product of Peptone, the Database of Structural Propensities of Proteins. Database of Structural Propensities of Proteins (dSPP) is the world's first interactive repository of structural and dynamic features of proteins with seamless integration for leading Machine Learning frameworks, Keras and Tensorflow. As opposed to binary (logits) secondary structure assignments available in other protein datasets for experimentalists and the machine learning community, dSPP data report on protein structure and local dynamics at the residue level with atomic resolution, as gauged from continuous structural propensity assignment in a range -1.0 to 1.0. Seamless dSPP integration with Keras and Tensorflow machine learning frameworks is achieved via dspp-keras Python package, available for download and setup in under 60 seconds time.


How Does the Random Forest Algorithm Work in Machine Learning

#artificialintelligence

In decision tree algorithm calculating these nodes and forming the rules will happen using the information gain and gini index calculations. In random forest algorithm, Instead of using information gain or gini index for calculating the root node, the process of finding the root node and splitting the feature nodes will happen randomly. In the above Mady trip planning, two main interesting algorithms decision tree algorithm and random forest algorithm used. First, let's begin with random forest creation pseudocode The beginning of random forest algorithm starts with randomly selecting "k" features out of total "m" features.


Feature Engineering in IoT Age - How to deal with IoT data and create features for machine learning?

#artificialintelligence

Given the fast pace of change to connected devices and our perspective of data science, we think that data science professionals need to understand and explore feature engineering of IOT or sensor data. Prior to creation of features from IOT or sensor data, it is important to consider the level of aggregation (across time) of the continuous streaming data. In these cases, both atomic level and aggregated level are used for generating the features, but in most cases, the aggregated level features prove more productive. Once the window for aggregation has been arrived at, the next step involves aggregating the sensor data over these time windows to create a set of new variables / features from the atomic ones.


The tips and tricks I used to succeed on Kaggle

#artificialintelligence

I learned machine learning through competing in Kaggle competitions. In my first ever Kaggle competition, the Photo Quality Prediction competition, I ended up in 50th place, and had no idea what the top competitors had done differently from me. What changed the result from the Photo Quality competition to the Algorithmic Trading competition was learning and persistence. Because feature engineering is very problem-specific domain knowledge helps a lot.


The 10 Algorithms Machine Learning Engineers Need to Know

#artificialintelligence

As Big Data is the hottest trend in the tech industry at the moment, machine learning is incredibly powerful to make predictions or calculated suggestions based on large amounts of data. Some of the most common examples of machine learning are Netflix's algorithms to make movie suggestions based on movies you have watched in the past or Amazon's algorithms that recommend books based on books you have bought before. The textbook that we used is one of the AI classics: Peter Norvig's Artificial Intelligence -- A Modern Approach, in which we covered major topics including intelligent agents, problem-solving by searching, adversarial search, probability theory, multi-agent systems, social AI, philosophy/ethics/future of AI. In the model, the data variables are assumed to be linear mixtures of some unknown latent variables, and the mixing system is also unknown.


Text Analytics: A Primer

@machinelearnbot

People from academia use the term text mining, especially data mining researchers, while text analytics is mainly used in industry. BL: It comes from three research areas: information retrieval, data mining, and natural language processing (NLP). Early text mining basically applied data mining and machine learning algorithms on text data without using NLP techniques such as parsing, part-of-speech tagging, summarization, etc. BL: Let's talk about natural language processing rather than text analytics, as advanced text analytics requires natural language processing.


Churn Prediction with Apache Spark Machine Learning

#artificialintelligence

A common technique for model selection is k-fold cross validation, where the data is randomly split into k partitions. Each partition is used once as the testing data set, while the rest are used for training. Models are then generated using the training sets and evaluated with the testing sets, resulting in k model performance measurements. For model selection we can search through the model parameters, comparing their cross validation performances.


The Machine Learning Algorithms Used in Self-Driving Cars

#artificialintelligence

This implies, within the available data, an algorithm develops a relation in order to detect the patterns or divides the data set into subgroups depending on the level of similarity between them. The reinforcement algorithms are another set of machine learning algorithms which fall between unsupervised and supervised learning. The machine learning algorithms are loosely divided into 4 classes: decision matrix algorithms, cluster algorithms, pattern recognition algorithms and regression algorithms. The images obtained through sensors in Advanced Driver Assistance Systems (ADAS) consists of all kinds of environmental data; filtering of the images is needed to determine the instances of an object category by ruling out the data points that are irrelevant.


Machine Learning with R: An Irresponsibly Fast Tutorial

#artificialintelligence

Now, let's compare the training set to the test set: The big difference between the training set and the test set is that the training set is labeled, but the test set is unlabeled. On Kaggle, your job is to make predictions on the unlabeled test set, and Kaggle scores you based on the percentage of passengers you correctly label. Training the model uses a pretty simple command in caret, but it's important to understand each piece of the syntax. Typically, you randomly split the training data into 5 equally sized pieces called "folds" (so each piece of the data contains 20% of the training data).