to

### Understanding vectors in Word2Vector model • /r/MachineLearning

In general, the goal of the loss function is to maximise the dot product between input vector and output vector while minimise the dot product between the input vector and other random vector. So this will make vectors corresponding to input and output word (context word) become more similar. With CBOW, the idea is kind of the same but with a different formulation.

### Giveaway: Win an Anki Vector

Anki's Vector is an adorable companion that's packed with tech and personality. By simply speaking to Vector you can play games, have it take your picture, or ask it the weather via Alexa integration. As mentioned in our review, Vector is basically the modern version of the Tamagotchi virtual pet. He'll make you laugh, demand your attention, and just make you feel less lonely when you're at home by yourself. But if you found the \$250 price tag hard to swallow, have no fear--we secured a Vector from Anki, and it could be yours!

### crowdAI

Your task is to build a function f which takes the current state observation (a dictionary describing the current state) and returns the muscle excitations action (19-dimensional vector) maximizing the total reward. The objective is to follow the requested velocity vector. The trial ends either if the pelvis of the model falls below 0.6 meters or if you reach 1000 iterations (corresponding to 10 seconds in the virtual environment). The total reward is 9 * s - p * p where s is the number of steps before reaching one of the stop criteria and p is the absolute difference between horizonal velocity and 3. You can interpret it as a request to run at a constat speed of 3 meters per second.

### Fall in love about the robot Vector by Anki

Based in California, the company Anki offers us a new robot model: Vector. It looks a bit like its predecessor who was destined to learn the code for kids! He will complete several roles such as answering questions, giving you the weather, taking pictures and many other things while being animated. What makes the robot endearing! Finally, I realize that in the long-term Vector could easily replace the "connected speakers" but without the music.