AI Is More Than Deep Learning

At a high level, while deep learning is a form of artificial intelligence, the converse isn't always true; an application implementing AI does not necessarily use deep learning. Many AI applications use “conventional statistical” or “traditional” machine learning. After all, Support Vector Machines, Logistic Regression, K-nearest, Naive Bayes, and decision trees still make a lot of sense to use in automating information classification, especially if you don’t have a lot of data.

For example, Conditional Random Field (CRF) is used in natural language processing, and a lot of recommendation engines are based upon Boltzman Machines, Alternate Least Square (ALS), and so on. Case in point: one of most demanding and unique benchmarks – our "big data" benchmark – uses an ALS algorithm as recommendation engine ("collaborative filtering").  

Of course, the use of neural networks – itself a whole field of study – is booming, and their use tends to dominate the latest AI applications. Neural networks are also among the most demanding workloads, requiring lots of processing power and signing expensive (and well-published) hardware contracts. All of which contrasts heavily with logistic regression, which remains the most used machine learning method, and also happens to need much less processing. 

The reason for these difference in processing power requirements is, in turn, actually pretty simple. To quote Wouter Gevaert, an AI expert at the university department I work in:

“Each Neuron in a Neural Network can be considered like a logistic regression unit. Therefore, a Neural Network is like a massive amount of logistic regressions” (When you use sigmoid as activation function) 

With all of that said, however, while neural networks are the most processing-intensive of AI technologies (especially with a large number of layers), there are several traditional machine learning techniques that also require a lot of processing power. Support Vector Machines with their complex transformations also tend to require a lot of computational time, for example. And in our Spark test, the Stanford NER system is based on a supervised CRF model using a labeled collection of English data. In that test, it has to crunch through a massive amount of unstructured text – several hundreds of gigabytes.

And of course, most of the analytical queries are still written in good old SQL. For structured and semi-structured data, for OLAP cubes etc., SQL code is still prevalent. As a single SQL query is nowhere near as parallel as Neural Networks – in many cases they are 100% sequential – the CPU is best tool for the job.

So in practice, most data (pre) processing and lots of AI software is still running on a CPU. GPUs mostly run massively parallel HPC applications and neural networks, an important market to be sure, but still only a piece of the larger AI market. This is one of the reasons why NVIDIA closed on $3 Billion of datacenter revenue last year, while Intel’s datacenter group made $20 Billion. Yes, Intel’s number includes Networking and storage. Yes, that includes several other markets than HPC and Data analytics. But still, a significant part of that revenue is going to be based upon servers that store and process data for analytics.  

Compounding this whole picture, however, is not just revenue, but opportunities for growth. NVIDIA has been seeing massive growth in the datacenter market, while Intel has only seen single digit growth. Customer needs are continuing to shift as new technologies become available; the battle for the data analytics market has begun, and it is intensifying.  

Enter the Era of AI Convolutional, Recurrent, & Scalability
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  • tipoo - Monday, July 29, 2019 - link

    Fyi, when on page 2 and clicking "convolutional, etc" for page 3, it brings me back to the homepage
  • Ryan Smith - Monday, July 29, 2019 - link

    Fixed. Sorry about that.
  • Eris_Floralia - Monday, July 29, 2019 - link

    Johan's new piece in 14 months! Looking forward to your Rome review :)
  • JohanAnandtech - Monday, July 29, 2019 - link

    Just when you think nobody noticed you were gone. Great to come home again. :-)
  • Eris_Floralia - Tuesday, July 30, 2019 - link

    Your coverage on server processors are great!
    Can still well remember Nehalem, Barcelona, and especially Bulldozer aftermath articles
  • djayjp - Monday, July 29, 2019 - link

    Not having a Tesla for such an article seems like a glaring omission.
  • warreo - Monday, July 29, 2019 - link

    Doubt Nvidia is sourcing AT these cards, so it's likely an issue of cost and availability. Titan is much cheaper than a Tesla, and I'm not even sure you can get V100's unless you're an enterprise customer ordering some (presumably large) minimum quantity.
  • olafgarten - Monday, July 29, 2019 - link

    It is available
  • abufrejoval - Tuesday, July 30, 2019 - link

    Those bottlenecks are over now and P100, V100 can be bought pretty freely, as well as RTX6000/8000 (Turings). Actually the "T100" is still missing and the closest siblings (RTX 6000/8000) might never get certified for rackmount servers, because they have active fans while the P100/V100 are designed to be cooled by server fans. I operate a handful of each and getting budget is typically the bigger hurdle than purchasing.
  • SSNSeawolf - Monday, July 29, 2019 - link

    I've been trying to find more information on Cascade Lake's AI/VNNI performance, but came up dry. Thanks, Johan. Eagerly putting this aside for my lunch reading today.

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