Calling all developers, designers and thinkers! Come together to build open source tools and communities to enable the annotation of the world's knowledge.

Big Data Silicon Valley was created to help demystify big data, explore interesting use cases in different industries, go over some opportunities in the market and share tools that are available for your big data projects. We'll also go over what are some opportunities that startups can tap into in this industry. Why should you care: Big data will drive $120 billion of IT spending in 2013, according to Gartner. 93% of businesses feel like they're losing money by not being able to use the infor …

Let's use open source technology to fix the financial industry! Large financial institutions caused the Great Recession, but regulators have not reformed them. Before the next crisis hits, let's create a suite of open source financial models and feed them with big data. We can use these technologies to figure out which assets are risky and which aren't. Rather than wait for top down financial reform from Washington DC, we can do it from the group up.

OpenOakland, a Code for America Brigade, is a civic innovation organization that brings together coders, designers, data geeks, journalists, and city staff to collaborate on solutions to improve how our local government serves all citizens of Oakland. We draw on our wide range of expertise and perspectives to build open-source applications and working relationships that promote civic innovation and open government in Oakland. Our projects range from events like CityCamp and the Open Government P …

Are you a Promoter, Developer, Marketer, Collaborator, and/ or Observer? It doesn't matter what role you fill. Your skills, passion, and enthusiasm are what we need to make a difference for the residents of Alameda County. Create a concept, web and/or mobile app that: Will benefit Alameda County residents, businesses and/or visitors & Uses at least one of the data sets from Alameda County Open Data or create data about Alameda County. Join the group today and get the latest info on Apps Challeng …

The world has experienced unprecedented urban growth in recent decades, and global data forecasts indicate this trend will only increase. Urban Tech SF focuses on the issues and strategies behind new technologies that improve (or hinder) our urban lives. Join us and explore a diverse range of urban technology projects in San Francisco. Participate in open civic engagement on the issues that shape our daily lives along the way.

This group is to discuss sensor technology and applications, and we welcome hackers, entrepreneurs, health-care professionals, scientists, quantified-selfers, the DIY community, and anyone else who is excited about sensors and sensor data. We also have a FB discussion group: http://bit.ly/sensorites

Helping teachers grow by addressing common pain points in professional development. In our continuing efforts to encourage Innovative Professional Development (iPD), the Foundation has identified the opportunity to engage various stakeholders in solving some of the common challenges faced by school districts as they implement iPD systems.  While district iPD systems may ultimately consist of a variety of applications from multiple vendors, these applications should work together seamlessly as a …

Come work together with other folks passionate about open government and civic tech! This is a weekly event hosted by Code for America, so come by and work on a civic project you have already started, start a new project, or collaborate with others on their projects. http://brigade.codeforamerica.org/brigades/81 https://www.github.com/sfbrigade irc.freenode.net #sfbrigade #codeforamerica

An Internet of Things (IoT) community group for the East Bay Area of San Francisco. Following on from IoTLondon, IoTAmsterdam and IoTNYC - we are opening a new community in the East Bay. Here's what our London Group are doing this week http://www.meetup.com/iotlondon/events/57537982/ Join for informal discussions, short presentations and socialise with fellow IoT Enthusiasts. Whether you are a hobbyist, maker or work professionally in this subject - come along for an evening out. Me …

Where the elite Essbase geeks meet to eat whilst at Oracle Open World. Food? Maybe. Drinks. Maybe that, too. Great conversation with fellow EPM practitioners? Absolutely.

Welcome to the San Francisco Bay Area Data Warehouse Group! This is a user group to discuss and collaborate on strategies, best practices and experiences building data warehouses. This group is open for everyone interested in networking with other data warehousing professionals (architects, developers, modelers, analysts, data scientists, PMs, directors, recruiters, etc), learning the latest technologies and trends, and sharing best practices and experiences. For those interested in: Data Wareho …

Open to Bay Area folks interested in Data Integration, Data Quality, Data Warehousing, Data Migration, EAI, ETL, dataflow architecture, and related topics

A group devoted to the use and development of open source, big data, agile intelligence solutions, for the San Francisco Bay area. Join our group if interested in solving real business problems utilizing open source, big data analytical solutions.

Hackers meet Democracy. Join us and find out more about how hackers can change the way our democracies work. It belongs to us to redefine our democracies using what we've learnt in technology.

Welcome! Are you a social entrepreneur, technologist or maybe just interested in meeting awesome people? Then this group is for you! In this meetup group, we host regular group discussions focused on exploring what it means to run a nonprofit business today and in the future, as well as the challenges this community faces. Our goal is to explore what technology can and should mean for the nonprofit industry, while actively collaborating on new solutions for age-old problems. Understanding the tr …

Do you want to transform public spaces into vibrant interactive places? Spearhead projects that prioritize bikers and walkers? Improve our public transportation systems? Promote energy efficient buildings? Revitalize our blighted neighborhoods? Infuse art and creativity into our urban spaces? We all have thoughts and ideas on any of these topics. Let’s collaborate. This group is meant to bring together urbanists, planners, designers, environmentalists, artists, developers and anyone else interes …

This is where Splunk users and fans can organize user group meetups in their location. Thus far, we have user group meetups in Los Angeles, Chicago, San Francisco, Columbus, OH, St. Louis, and soon in San Diego. Add yours to the list. To learn more, go to Splunk.com and download the free version.

R is an open source programming language for statistical computing, data analysis, and graphical visualization. R has an estimated one million users worldwide, and its user base is growing. While most commonly used within academia, in fields such as computational biology and applied statistics, it is gaining currency in commercial areas such as quantitative finance and business intelligence. Among R's strengths as a language are its powerful built-in tools for inferential statistics, its comp …

HBase is a robust, scalable, distributed, column-oriented store capable of hosting billions of row of sparse, structured data. HBase is open source and part of the Hadoop project. This meeting is for users and developers. Discussions will be around the most recent release of HBase, any issues users are having, and to help plan for the next release. Definitely come if you're a current user of HBase; or if your company has plans for a huge data store and you're evaluating solutions. Also check out …

Welcome! We are a group of developers, enthusiasts and users interested in the technical aspect of different geo technologies. This group is meant to be an open, friendly, technical forum where you can find answers to your geospatial questions or learn more about Geographic Information Systems (GIS). A cool geo-project: http://www.youtube.com/watch?v=UUU5xSeSaHo&NR=1 If you ever had "traditional" questions like/about: - What is the best way of storing the locations for my mobile app? - How do I …

Have a cool data visualization to show? Questions to ask? Want to meet others who have a data driven mindset? Let's meetup and talk d3.js! http://mbostock.github.com/d3/

This group is a place for developers to learn more about MongoDB, an open source, document-oriented, nosql database. If you are facing challenges with MySQL or Postgres or Oracle and want to explore a more flexible, scalable alternative, please join us at one of our monthly sessions. We typically meet on the second or third Tuesday of the month, have some pizza and network, and enjoy a presentation on Mongo.

Modern machine learning algorithms like Support Vector Machine, Random Forest and Neural Nets are producing very promising results on large scale datasets. However understanding what is happening inside the black box and the nuanced differences of various implementations can be challenging. Topics and presentations will include open source tools, real-world case studies and an occasional talk by a theorist.

San Francisco PyData is a group for data nerds who use Python and the available libraries: Matplotlib, NumPy, Pandas, NetworkX, etc.

A forum for users and aficionados of MySQL to get together and talk about their favorite open source database!

Salesforce.com Integration & Analytics is a San Francisco meetup for Salesforce.com users, administrators, Force.com developers, sales and marketing professionals, and others interested in extending the Salesforce platform. Topics will include: data integration dashboards analytics reporting sales force automation (SFA) marketing optimization using 3rd party data integrated into Salesforce business intelligence (BI) and more This meetup is not an official Salesforce.com event, but we are all …

Join this small group for a step-by-step approach to learn the R language. Each session is filled with real-life examples and participants are welcome to suggest and present topics. If you have just started with R this is the perfect chance to find out about data analysis with a group of people rather than on your own.