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Category: Mechanical Engineering

Engineering NullAway, Uber’s Open Source Tool for Detecting NPEs

Maintaining the reliability of Uber’s mobile apps is crucial to facilitating a seamless and enjoyable user experience. Alongside a robust plugin architecture, feature flags, and dynamic validation of external data, static analysis tools play a key role in ensuring high code reliability by detecting potential bugs before updates are shipped to users. Previously, Uber deployed third-party static analysis tools to detect potential NullPointerExceptions (NPE), a leading cause of app crashes, and maintain reliability in our Android codebase. However, as our…

Machine Learning Platform meetup – Netflix TechBlog – Medium

Recap of the Oct 2017 ML Platform meetup at Netflix HQ By Faisal Siddiqi Machine Learning is making fast inroads into many areas of business and is being employed in an increasingly widening array of commercial applications. At Netflix, ML has been used for several years on our Recommendations and Personalization problems. Over the last couple of years, ML has expanded into a wide range of newer applications here, such as Content Promotion, Content Price Modeling, Programmatic Marketing, Efficient Content Delivery,…

Uber’s Open Source Distributed Deep Learning Framework

Over the past few years, advances in deep learning have driven tremendous progress in image processing, speech recognition, and forecasting. At Uber, we apply deep learning across our business; from self-driving research to trip forecasting and fraud prevention, deep learning enables our engineers and data scientists to create better experiences for our users. TensorFlow has become a preferred deep learning library at Uber for a variety of reasons. To start, the framework is one of the most widely used open…

Uber’s Driverless Car Plans to Reinvent Riders’ Experience

Driverless cars are the future and we all know we are going to see a lot of them around. The level-4 driverless car could be a reality by 2025 while a fully autonomous car may take more time. Few among us may own them and many of us will be riding in a rented driverless Uber as the company is channelizing its R&D to build a robotic chauffeur. Also, Uber is not only working to install a driverless car computer…

Engineers could learn a lot from dance when designing urban transport

Credit: HelloRF Zcool/Shutterstock.com There is little more important for the sustainability of cities than the ways we move around them. With transportation estimated to account for 30% of energy consumption across the majority of the world’s most developed nations, reducing the necessity for energy-reliant vehicles is fundamental to addressing the environmental impact of mobility. But as cities become the predominant habitat for most people in the world, it is important to think about other kinds of sustainability too. The ways…

Big Data Processing at Spotify: The Road to Scio (Part 1)

This is the first part of a 2 part blog series. In this series we will talk about Scio, a Scala API for Apache Beam and Google Cloud Dataflow, and how we built the majority of our new data pipelines on Google Cloud with Scio. Scio> Ecclesiastical Latin IPA: /ˈʃi.o/, [ˈʃiː.o], [ˈʃi.i̯o]> Verb: I can, know, understand, have knowledge. Over the past couple of years, Spotify has been migrating our infrastructure from on premise to Google Cloud. One key consideration…

Deterring drones from ballparks and botanical gardens

Mary ‘Missy’ Cummings standing with a hovering drone in the Sarah P. Duke Gardens at Duke University, where she will work to generate a set of inexpensive, unobtrusive best practices to deter unwanted drone usage. Credit: Duke University To study how an outdoor public space might shoo away unwanted drone aircraft, researchers from Duke University are teaming up with the Durham Bulls and the Sarah P. Duke Gardens to develop a set of affordable and aesthetic guidelines for deterring drones.…

Developer Experience Lessons Operating a Serverless-like Platform At Netflix — Part II

By Ludovic Galibert, Vasanth Asokan and Sangeeta Narayanan In Part 1 of this series, we outlined key learnings the Edge Developer Experience team gained from operating the API dynamic scripting platform which provides a serverless or FaaS like experience for client application developers. We addressed the concerns around getting code ready for production deployment. Here, we look at what it takes to deploy it safely and operate it on an ongoing basis. Deployments Simplicity and abstraction of operations come with…

Haumea, the most peculiar of Pluto companions, has a ring around it — ScienceDaily

At the ends of the Solar System, beyond the orbit of Neptune, there is a belt of objects composed of ice and rocks, among which four dwarf planets stand out: Pluto, Eris, Makemake and Haumea. The latter is the least well known of the four and was recently the object of an international observation campaign which was able to establish its main physical characteristics. The study, led by astronomers from the Institute of Astrophysics of Andalusia and published in Nature,…

Autonomous driving at the bus depot

Credit: Laila Tkotz/KIT Autonomous driving is an important element of new mobility concepts, not only in the private car sector. A study of Karlsruhe Institute of Technology (KIT), KIT’s Research Center for Information Technology (FZI), and Stuttgarter Straßenbahnen AG (Stuttgart Trams, SSB) now reveals how autonomous driving at bus depots can work and reduce costs. The project partners will present their model of a semi-autonomous bus depot at the EVS30 – The Electric Vehicle Symposium and Exhibition on October 09…