jerven

59 ms·

541.
by jerven 12y ago
You should try again, depending on the software (i.e. which SPARQL database) it can be much faster than neo4j.
542.
by jerven 12y ago
BigData by systap is working on this combination see this blog post ( http://blog.bigdata.com/?p=658 )
543.
by jerven 12y ago
It is basically required for SPARQL 1.1. (Named) graph support. Often people call them quad stores.
544.
by jerven 12y ago
GMO often changes one thing at a time (i.e. modifies one gene). While the classical approach of breeding plants for desired traits modifies 100s if not 1000s of genes at the same time. GMO is simpler to understand and test for that reason a
545.
by jerven 12y ago
Verbose and explicit is what made java checked exceptions the sign of the demon for some programmers. The err pattern in GO might end up the same. In the end I think the problem is that there are two separate classes of programs. The first
546.
by jerven 12y ago
You should have a lookat rdf and json-ld. More and more bio databases are supporting these serialisations of their data. Quite a few even allow sparql access (sql over http for semantic graphs) e.g. rd.ebi.ac.uk and beta.sparql.uniprot.org
547.
by jerven 12y ago
For the vast majority of code there is a branch anyway because the comparison result is used in an conditional statement. This means a good inlining compiler probably generates one branch for the comparison plus conditional. i.e. this is wh
548.
by jerven 12y ago
This is one of the reasons that Value types as being discussed for java9 would be such a big benefit for easy performance. You can do it today but it requires more work, that we often don't do. Parts of the talk are slightly outdated b
549.
by jerven 12y ago
Probably, (also makes back compatibility to earlier jvms easier). However, I think the authors went for "horrible syntax in examples" so that we have time to think about a final good/decent syntax. See what happened with lamb
550.
by jerven 12y ago
In java 8 you should probably use the Exact methods in java.lang.Math (In cases where the size is int or long and overflow errors need to be detected, the methods addExact, subtractExact, multiplyExact, and toIntExact throw an ArithmeticExc
551.
by jerven 12y ago
That is another part I missed, the ASM implementation seemed to optimise the function while potentially deoptimising the whole program. For most code overflows are rare, jumping to deal with the rare cases but otherwise just doing the norma
552.
by jerven 12y ago
I would have expected to see the "jo" instructions in the assembly. Does anyone know why it was not used?
553.
by jerven 12y ago
Sure I hace quite a few programs that run in 64mb of ram (default) jvms. Probably could go lower for those but I never even looked at improving those. Java programs can use very little ram if appropriately designed for a problem. I.e. don&#
554.
by jerven 13y ago
I must say pointing to slides that comment on flaws mostly corrected in Java 1.2 with the strictfp keyword. And comments on concerns otherwise only applicable to people who actually do numerical analysis on their code. i.e. all those for wh
555.
by jerven 13y ago
Virtioso 7 by openlinksw is a GPL columnar sql (and sparql) RDBMS
556.
by jerven 13y ago
The JVM has at least a security model/system. Something the Ruby MRI VM lacks. i.e. a ruby program is never in a sandbox. Using the JVM with JRuby or Ruby MRI as webserver are reasonably equivalent in security footprint. And in recent
557.
by jerven 13y ago
Seems much more sensible as a quicker commercialization approach. Java code does not depend on hardware memory models but a defined memory model. Much easier to validate your jvm is valid than all C programs that clients might want to run.
558.
by jerven 13y ago
JSON-LD is just fantastic at bringing all the data in RDF to power real world JS/websites. Angular.js and JSON-LD plus SPARQL results in JSON is just so much fun to play with.
559.
by jerven 13y ago
Yes, because the customers of the networks have already paid for the bandwidth! I buy internet access and that includes access to youtube!
560.
by jerven 13y ago
I don't know if perl is short of newbies. But if the source about not liking java as it was in 1997! then maybe they need to re-think about how to evaluate using a language in 2014! The perl5 to perl6 development, together with the ris
561.
Scalability Improvements in Stardog 2.1 (SPARQL/RDF/semantic graph database)(weblog.clarkparsia.com)
2 points by jerven 13y ago|0 comments
562.
by jerven 13y ago
Totally agree, I never wanted to get involved in C++ hotspot. But graal development (even to the point of generating assembly) looks much more welcoming.
563.
by jerven 13y ago
This is one of the things that makes java 8 really exiting. I think it is going to show where JIT languages are going to shine in comparison to AOT compiled ones. Multi architecture code in one program without the developer needing to jump
564.
by jerven 13y ago
I would, and if it wasn't me my current employer might...
565.
by jerven 13y ago
I completely agree with the blog post writer. I have a job, and if I was to work on some other companies code base while still working for the current one, all kinds of copyright issues ensue (Swiss). Having someone, who is not an employee
566.
by jerven 13y ago
Very nice read! How does this work compare to work on java 8 to bring GPU compute to the jvm by AMD, ARM and Oracle? Do you see this as a competition or do you feel you are in a separate niche?
567.
by jerven 13y ago
I use SPARQL a lot although not Fuseki. I really like the flexibility it gives in the schema (flexible not less schema). As well as that one query language can be used on radically different implementations i.e. I don't need to change
568.
by jerven 13y ago
J2EE was last released 10 years ago. Since then its been JEE and with the latest you should not have to use XML for configuration only when you want some really odd config instead of going by convention. JSF2/Facelets replaced JSP in t
569.
by jerven 13y ago
Heck the moment Postgres supports SPARQL I might ;) also the moment I no longer need to vacuum would be a requirement. Actually postgres is the first choice, we chose Oracle when we need specific features not because we like spending money
570.
by jerven 13y ago
Oh, you could make this run using MPI etc... no problem. But then all you are really doing is going from high density to low density ram. And that is just not as large a saving as you would think it is. Because you are expanding rapidly the

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