Into the Unknown
Sequential data is data that has a natural sequential structure built into it, like text data or audio data. There are various network architectures and layers that we can use to make predictions from sequence data. However sequence data is often unstructured and not as uniform as other datasets. Preprocessing Sequential Data Each sequence example…
Introduction to Recommender Systems: Non-Personalized and Content-BasedUniversity of Minnesota In modern society, the recommender systems are everywhere and people even won’t survive without them. There are sorts of companies mining data of your behavior and creating profiles for you. They know you better than you do, and they affect almost all kinds of decisions you…
The content-based approaches to recommendation include: Pure information filtering systems build profiles of content preference Case-based reasoning systems ask questions and query database of cases Knowledge-based navigation systems navigate from item to item in a library of exampleswithout necessarily the engineering of questions Generally, these case-based and knowledge-based approaches are helpful for these ephemerally personalized…
Data pipelines are for loading, transforming, and filtering a wide range of different data for use in your models. Broadly speaking there are two ways to handle our data pipeline: These two modules together offer some powerful methods for managing data and building an effective workflow. Keras Datasets The Keras datasets give us a really…
Containers Explained The concept for containers comes from shipping containers, which have a standard size, shape, and common mechanisms for loading and locking containers on to ships to ship products around the world. With software, you need to package up a product and, ship it. But the problems are: Docker is an open platform for…
Management of Fashion and Luxury CompaniesUniversit脿 Bocconi Are you learning French or Italian as a foreign language? Certainly, everybody has their own reasons. To me, one of the reasons is fashion and luxury. Every time when I was in department stores, shopping malls or outlets, those shiny display windows catch my eyes. The handbags, clothes,…
Lorentz transformation is the central question in the mathematical structure of special relativity. Simply put, given the coordinate of the event in one frame, say Bob’s frame, (tB,xB), calculate the coordinate in another frame, say Alice’s frame (tA,xA). Let us first examine a similar problem, which is the rotation of the space directions. In the…
Products Development There is a major difference between luxury and fashion companies in dealing with the product development process. Luxury 1. Most of the products are not seasonal and therefore at the end of the season are not discounted.2. Some products (say, leather goods) have a longer product life cycle. They are iconic, timeless, and…
The reason you might want to use the Functional API (instead of the Sequential API) is if you need more flexibility. For example, you are using: multiple inputs and outputs in a multitask learning model, or conditioning variables. complicated non-linear topology with layers feeding to multiple other layers. With the Sequential API, we didn’t have…
The concept of “length” and “the same time” have to be reconsidered in special relativity. Light Ruler and Length Contraction In the example of the explosion of a grenade, it takes time 鈭唗 from triggering to exploding. If it is triggered and immediately thrown with speed v, how long the grenade travels depends on your…
Fundamentals of Network CommunicationUniversity of Colorado System Computer networking and communication are shockingly complicated. It takes years or decades to become an expert. This is a great course that covers most of the important concepts for you. The course begins with history. It is amazing to find out that telegraph was invented about 200 years…
Simply put, a communication network is a set of equipment (routers, servers, switches, etc) and facilities (copper wires, optical fiber) that provide communication services, to transfer information between locations. Evolution of Communication Networks In the history, the evolution of services influence the design of network architecture: Telegraph networks A message is transmitted using signals (drums,…
Machine Learning Algorithms: Supervised Learning Tip to TailAlberta Machine Intelligence Institute There are many other courses that teach you some aspects of supervised learning, but this one gives you the big picture. Classification and Regression are closely related, it’s likely to get lost in the details. The course begins with the Decision Trees and k-Nearest…
Let’s take a look at how the performance of regression and classification models can be quantified so that we can identify the best learning algorithm to build the model. Most importantly, the learning data should be split into training data and test dtaa. Failing to hold out test data will lead to dire consequences. Regression…
Often, some of the “shifts” we need to make when we’re using regression based approaches for classification. There is a major family of classification algorithms called Logistic Regression. Logistic Regression Logistic regression is actually a classification, it does not answer questions with a real number, it answers with a binary category 0 or 1. It…