- A Sort of Joy — MOMA’s catalogue was released under CC license, and has even been used to create new art. The performance is probably NSFW at your work without headphones on, but is hilarious. Which I never thought I’d say about a derivative work of a museum catalogue. (via Courtney Johnston)
- dat goes beta — the “git for data” goes beta. (via Nelson Minar)
- Computer Generated Handwriting — play with it here. (via Evil Mad Scientist Labs)
- Japanese Telcos vie for Consumer Robot-as-a-Service Business (Robohub) — NTT says Sota will be deployed in seniors’ homes as early as next March, and can be connected to medical devices to help monitor health conditions. This plays well with Japanese policy to develop and promote technological solutions to its aging population crisis.
"machine learning" entries
The O'Reilly Data Show Podcast: Poppy Crum explains that what matters is efficiency in identifying and emphasizing relevant data.
Like many data scientists, I’m excited about advances in large-scale machine learning, particularly recent success stories in computer vision and speech recognition. But I’m also cognizant of the fact that press coverage tends to inflate what current systems can do, and their similarities to how the brain works.
During the latest episode of the O’Reilly Data Show Podcast, I had a chance to speak with Poppy Crum, a neuroscientist who gave a well-received keynote at Strata + Hadoop World in San Jose. She leads a research group at Dolby Labs and teaches a popular course at Stanford on Neuroplasticity in Musical Gaming. I wanted to get her take on AI and virtual reality systems, and hear about her experience building a team of researchers from diverse disciplines.
Understanding neural function
While it can sometimes be nice to mimic nature, in the case of the brain, machine learning researchers recognize that understanding and identifying the essential neural processes is much more critical. A related example cited by machine learning researchers is flight: wing flapping and feathers aren’t critical, but an understanding of physics and aerodynamics is essential.
Crum and other neuroscience researchers express the same sentiment. She points out that a more meaningful goal should be to “extract and integrate relevant neural processing strategies when applicable, but also identify where there may be opportunities to be more efficient.”
The goal in technology shouldn’t be to build algorithms that mimic neural function. Rather, it’s to understand neural function. … The brain is basically, in many cases, a Rube Goldberg machine. We’ve got this limited set of evolutionary building blocks that we are able to use to get to a sort of very complex end state. We need to be able to extract when that’s relevant and integrate relevant neural processing strategies when it’s applicable. We also want to be able to identify that there are opportunities to be more efficient and more relevant. I think of it as table manners. You have to know all the rules before you can break them. That’s the big difference between being really cool or being a complete heathen. The same thing kind of exists in this area. How we get to the end state, we may be able to compromise, but we absolutely need to be thinking about what matters in neural function for perception. From my world, where we can’t compromise is on the output. I really feel like we need a lot more work in this area. Read more…
Using topology to uncover the shape of your data: An interview with Gurjeet Singh.
Get notified when our free report, “Future of Machine Intelligence: Perspectives from Leading Practitioners,” is available for download. The following interview is one of many that will be included in the report.
As part of our ongoing series of interviews surveying the frontiers of machine intelligence, I recently interviewed Gurjeet Singh. Singh is CEO and co-founder of Ayasdi, a company that leverages machine intelligence software to automate and accelerate discovery of data insights. Author of numerous patents and publications in top mathematics and computer science journals, Singh has developed key mathematical and machine learning algorithms for topological data analysis.
- The field of topology studies the mapping of one space into another through continuous deformations.
- Machine learning algorithms produce functional mappings from an input space to an output space and lend themselves to be understood using the formalisms of topology.
- A topological approach allows you to study data sets without assuming a shape beforehand and to combine various machine learning techniques while maintaining guarantees about the underlying shape of the data.
David Beyer: Let’s get started by talking about your background and how you got to where you are today.
Gurjeet Singh: I am a mathematician and a computer scientist, originally from India. I got my start in the field at Texas Instruments, building integrated software and performing digital design. While at TI, I got to work on a project using clusters of specialized chips called Digital Signal Processors (DSPs) to solve computationally hard math problems.
As an engineer by training, I had a visceral fear of advanced math. I didn’t want to be found out as a fake, so I enrolled in the Computational Math program at Stanford. There, I was able to apply some of my DSP work to solving partial differential equations and demonstrate that a fluid dynamics researcher need not buy a supercomputer anymore; they could just employ a cluster of DSPs to run the system. I then spent some time in mechanical engineering building similar GPU-based partial differential equation solvers for mechanical systems. Finally, I worked in Andrew Ng’s lab at Stanford, building a quadruped robot and programming it to learn to walk by itself. Read more…
Practical applications of human-in-the-loop machine learning.
With hundreds, thousands, or even just tens of suppliers — each with different business units, payment terms, and locations — businesses are faced with a monumental task: unifying all of their supplier-related data, and fast so that it can be useful. In order to ask deep questions about their data, companies are increasingly looking for a single, unified view of their supply chain.
And yet, business data is often stored in different sources, systems, and formats, resulting in silos of information. These data silos take the form of enterprise resource planning systems, CSV files, spreadsheets, and relational databases. To pull together all of the data from these disparate sources, a business faces three interrelated challenges:
- Speed. Traditionally, businesses have attempted to catalog and organize supply chain data manually — profiling and integrating data themselves, which leads directly to the next challenge: cost.
- Cost. Manual work is expensive work. Usually more than one employee will need to work on the same data set in order to move quickly enough for the results to have any value for the business. Even with several employees working on the same data sets, this work will still not achieve what could be done on a machine scale.
- Efficiency. Relying completely on humans to organize and unify data is a situation ripe for error. Plus, there’s often no audit trail, and the work results in inherently incomplete views of information.
In a recent live demo by Dr. Clare Bernard, a field engineer at Tamr, I got a glimpse into how Tamr is using a combination of machine learning algorithms and input from subject matter experts to help businesses unify their data for analysis. A practice that uses short-term human intervention to actively improve machine models, human-in-the-loop machine learning is taking off across all types of industries, including fashion, automotive, and cloud services such as Google Maps. Read more…