102 Results
November 3, 2018
The Effect of Computer-Generated Descriptions on Photo-Sharing Experiences of People with Visual Impairments
Conference on Computer-Supported Cooperative Work and Social Computing (CSCW)
Like sighted people, visually impaired people want to share photographs on social networking services, but find it difficult to identify and select photos from their albums. We aimed to address this problem by incorporating state-of-the-art computer-generated descriptions into Facebook’s photo-sharing feature.
By: Yuhang Zhao, Shaomei Wu, Lindsay Reynolds, Shiri Azenkot
Human Computer Interaction & UX August 19, 2018
A real-time framework for detecting efficiency regressions in a globally distributed codebase
Knowledge Discovery in Databases (KDD)
This paper describes the end-to-end regression detection system designed and used at Facebook. The main detection algorithm is based on sequential statistics supplemented by signal processing transformations, and the performance of the algorithm was assessed with a mixture of online and offline tests across different use cases.
By: Martin Valdez-Vivas, Caner Gocmen, Andrii Korotkov, Ethan Fang, Kapil Goenka, Sherry Chen
Facebook AI Research 
Systems & Networking August 16, 2018
Constrained Bayesian Optimization with Noisy Experiments
Bayesian Analysis 2018
We derive an expression for expected improvement under greedy batch optimization with noisy observations and noisy constraints, and develop a quasi-Monte Carlo approximation that allows it to be efficiently optimized.
By: Benjamin Letham, Brian Karrer, Guilherme Ottoni, Eytan Bakshy
Data Science
Machine Learning July 11, 2018
Learning Diffusion using Hyperparameters
International Conference on Machine Learning (ICML)
In this paper we advocate for a hyperparametric approach to learn diffusion in the independent cascade (IC) model. The sample complexity of this model is a function of the number of edges in the network and consequently learning becomes infeasible when the network is large.
By: Dimitris Kalimeris, Yaron Singer, Karthik Subbian, Udi Weinsberg
Data Science
Machine Learning June 28, 2018
Hardware Remediation At Scale
International Conference on Dependable Systems and Networks (DSN)
Large scale services have automated hardware remediation to maintain the infrastructure availability at a healthy level. In this paper, we share the current remediation flow at Facebook, and how it is being monitored.
By: Fan (Fred) Lin, Matt Beadon, Harish Dattatraya Dixit, Gautham Vunnam, Amol Desai, Sriram SankarJune 25, 2018
Do Diffusion Protocols Govern Cascade Growth?
International AAAI Conference on Web and Social Media (ICWSM)
Large cascades can develop in online social networks as people share information with one another. Though simple reshare cascades have been studied extensively, the full range of cascading behaviors on social media is much more diverse. Here we study how diffusion protocols, or the social exchanges that enable information transmission, affect cascade growth, analogous to the way communication protocols define how information is transmitted from one point to another.
By: Justin Cheng, Jon Kleinberg, Jure Leskovec, David Liben-Nowell, Bogdan State, Karthik Subbian, Lada Adamic
Data Science June 25, 2018
“I’m Never Happy with What I Write”: Challenges and Strategies of People with Dyslexia on Social Media
International Conference on Web and Social Media
This work studies the experiences, challenges, and strategies of people with dyslexia when using social media. We interviewed 11 people with dyslexia to understand their general experiences with reading and writing content on Facebook. The interview study findings highlight the challenges they face when writing content on Social Networking Sites (SNSs), and their strategies for mitigating these challenges.
By: Lindsay Reynolds, Shaomei WuApril 21, 2018
A Face Recognition Application for People with Visual Impairments: Understanding Use Beyond the Lab
Conference on Human Factors in Computing Systems (CHI)
We present Accessibility Bot, a research prototype bot on Facebook Messenger, which leverages state-of-the-art computer vision algorithms and the existing set of tagged photos of a user’s friends on Facebook to help people with visually impairments recognize their friends.
By: Yuhang Zhao, Shaomei Wu, Lindsay Reynolds, Shiri Azenkot
Data Science December 15, 2017
Mapping the world population one building at a time
ArXive
Here, we present a computer vision method based on machine learning to create population maps from satellite imagery at a global scale, with a spatial sensitivity corresponding to individual buildings and suitable for global deployment.
By: Tobias Tiecke, Xianming Liu, Amy Zhang, Andreas Gros, Nan Li, Gregory Yetman, Talip Kilic, Siobhan Murray
Computer Vision 
Connectivity December 10, 2017
Social Structure and Trust in Massive Digital Markets
International Conference on Information Systems (ICIS)
In this paper we measure the extent to which situating transactions in networks can generate trust in online marketplaces with an empirical approach that provides external validity while eliminating many potential confounds.
By: David Holtz, Diana Lynn MacLean, Sinan Aral
Data Science