You're referring to the 2015 version of artificial intelligence!

2015 was an exciting year for AI, with significant advancements in various areas、Here are some notable developments that took place around that time:

1、Deep Learning: Deep learning techniques, such as convolutional neural networks (CNNs) and recurrent neural networks (RNNs), were gaining popularity in 2015、Researchers were exploring their applications in image and speech recognition, natural language processing, and more.
2、Image Recognition: In 2014, the ImageNet Large Scale Visual Recognition Challenge (ILSVRC) was won by a deep learningbased approach、In 2015, the winning entry, ResNet, further improved upon this result, achieving a top5 error rate of 3.57%.
3、AlphaGo: Although AlphaGo, the AI system developed by Google DeepMind, was first introduced in 2016, its precursor, a simpler Goplaying program, was already being developed in 2015、AlphaGo would later go on to defeat a human world champion in Go in 2016.
4、Natural Language Processing (NLP): In 2015, researchers were actively exploring the use of deep learning techniques for NLP tasks, such as language modeling, sentiment analysis, and machine translation.
5、Robotics and Autonomous Systems: The development of autonomous vehicles and drones was gaining momentum in 2015, with companies like Google and Tesla making significant investments in this area.

Some notable AIrelated releases and announcements from 2015 include:

1、TensorFlow: Google opensourced TensorFlow, a popular deep learning framework, in November 2015.
2、Microsoft Cognitive Services: Microsoft released its Cognitive Services platform in 2015, providing a set of APIs for developers to build AIpowered applications.

These advancements and releases laid the foundation for the rapid progress we've seen in AI in the following years.

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