Posts Tagged ‘linked data’
Barak Michener, Software Engineer, Knowledge NYC has posted on the Google Open Source Blog about “Cayley, an open source graph database.”: “Four years ago this July, Google acquired Metaweb, bringing Freebase and linked open data to Google. It’s been astounding to watch the growth of the Knowledge Graph and how it has improved Google search to delight users every day. When I moved to New York last year, I saw just how far the concepts of Freebase and its data had spread through Google’s worldwide offices. I began to wonder how the concepts would advance if developers everywhere could work with similar tools. However, there wasn’t a graph available that was fast, free, and easy to get started working with. With the Freebase data already public and universally accessible, it was time to make it useful, and that meant writing some code as a side project.”
The post continues: “Cayley is a spiritual successor to graphd; it shares a similar query strategy for speed. While not an exact replica of its predecessor, it brings its own features to the table:RESTful API, multiple (modular) backend stores such as LevelDB and MongoDB, multiple (modular) query languages, easy to get started, simple to build on top of as a library, and of course open source. Cayley is written in Go, which was a natural choice. As a backend service that depends upon speed and concurrent access, Go seemed like a good fit.”
Straight out of Google I/O this week, came some interesting announcements related to Semantic Web technologies and Linked Data. Included in the mix was a cool instructional video series about how to “Build a Small Knowledge Graph.” Part 1 was presented by Jarek Wilkiewicz, Knowledge Developer Advocate at Google (and SemTechBiz speaker).
Wilkiewicz fits a lot into the seven-and-a-half minute piece, in which he presents a (sadly) hypothetical example of an online music store that he creates with his Google colleague Shawn Simister. During the example, he demonstrates the power and ease of leveraging multiple technologies, including the schema.org vocabulary (particularly the recently announced ‘Actions‘), the JSON-LD syntax for expressing the machine readable data, and the newly launched Cayley, an open source graph database (more on this in the next post in this series).
Standard Analytics, which was a participant at the recent TechStars event in New York City, has a big goal on its mind: To organize the world’s scientific information by building a complete scientific knowledge graph.
The company’s co-founders, Tiffany Bogich and Sebastien Ballesteros,came to the conclusion that someone had to take on the job as a result of their own experience as researchers. A problem they faced, says Bogich, was being able to access all the information behind published results, as well as search and discover across papers. “Our thesis is that if you can expose the moving parts – the data, code, media – and make science more discoverable, you can really advance and accelerate research,” she says.
Whether the discussion is about public grants funding or government agencies’ portfolio management at large, semantic technology can help optimize departments’ missions and outcomes. Octo Consulting, whose engagement with the National Institutes of Health The Semantic Web Blog discussed here, sees the issue in terms of integration and aggregation of data across multiple pipes, vocabularies and standards to enable grant-makers or agency portfolio-managers to get the right answers when they want to search to answer questions, such as whether grants are being allocated to the right opportunities and executed properly, or whether contracts are hired out to the right vendors or licenses are being duplicated.
Those funding public grants, for instance, should keep an eye on what projects private monies are going to, as well – a job that may involve incorporating data in other formats from other public datasets, social media and other sources in addition to their own information, in order to optimize decisions. “The nature of the public grant market is effectively understanding what the private grant market is doing and not doing the same thing,” says Octo executive VP Jay Shah.
NEW YORK, June 4, 2014 (ADOTAS) – Sizmek Inc. (SZMK), a global open ad management company that delivers multiscreen campaigns, announced today that Peer39, its suite of data solutions, has made available new weather targeting attributes for pre-bid buying platforms such as AppNexus. For the first time in the industry, advertisers, agencies and trading desks can target programmatic buys using a variety of pre-bid weather data attributes including temperature ranges, presence of various weather events, current conditions, flu severity and, soon, pollen counts. Read more
Semantic technology can be part of the fun. Over the next couple of days we’ll look at some ways it can chip in. Let’s start with food as you start thinking about the summer BBQs. There are semantic solutions that can help on various fronts here. Edamam, for example, has built a food ontology that classifies ingredients, nutrients and food that it applies to recipes it scrapes from the web with the help of its natural language processing and machine learning functions.
As you’re breaking out the grill, you can break out the smartphone or iPad to search for grilled burger recipes that incorporate tomatoes in the 200 to 400 calorie range, for example, and take your pick of ranch salmon, Portobello mushroom, turkey with spiced tomato chutney or the classic beef with garden vegetables, for instance. “The nutrition information we append to recipes using natural language processing. This translates into people being able to filter recipes by diet/calories/allergies and be a bit more health-conscious this summer,” says Victor Penev, Edamam founder and CEO.
Nextgov reports, “When government technology leaders first described a public repository for government data sets more than five years ago, the vision wasn’t totally clear. ‘I just didn’t understand what they were talking about,’ said Marion Royal of the General Services Administration, describing his first introduction to the project. ‘I was thinking, ‘this is not going to work for a number of reasons.’’ A few minutes later, he was the project’s program director. He caught onto and helped clarify that vision and since then has worked with a small team to help shepherd online and aggregate more than 100,000 data sets compiled and hosted by agencies across federal, state and local governments.” Read more