ACM SIGMOD Blog

Catching the heartbeat of the data management community: perspectives on exciting and controversial topics, from and for the ACM SIGMOD community.

Ontology-based Data Management

Figure 1 shows a portion of a relational table contained in a real, large information system. The table concerns the customers of an organization, where each row stores data about a single customer. The first column contains her code (if the code is negative, then the record refers to a special…

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Stop publishing so much already!

Got your attention? Now that I have it, I would like to take a few minutes to discuss the role of limited attention and information overload in science. Attentive acts such as reading a scientific paper (or a tweet), answering an email, or watching a video require mental effort, and since the human…

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Fifty Years of Databases

Fifty years ago a small team working to automate the business processes of the General Electric Low Voltage Switch Gear Department in Philadelphia built the first functioning prototype of a database management system. The Integrated Data Store was designed by Charles W. Bachman, who later won the…

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A Few More Words on Big Data

Big Data is the buzzword in the database community these days. Two of the first three blog entries of the SIGMOD blog are on Big Data. There was a plenary research session with invited talks at the 2012 SIGMOD Conference and there will be a panel at the 2012 VLDB Conference. Probably, everything…

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Big Data: It’s Not Just the Analytics

I was recently approached by an entrepreneur who had an interesting way to correlate short term performance of a stock with news reports about the stock. Needless to say, there are many places from which one can get the news, and what results one gets from this sort of analysis does depend on the…

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