eamsen | 5 years ago
eamsen's comments
eamsen | 5 years ago
eamsen | 9 years ago
Seeking VBR MP3 with perfect accuracy is trivial by forward-reading. However, this is obviously highly inefficient on long duration seeks.
For instant seeking support, you need to (partly) depend on the optional VBR headers. This comes with its own set of issues, e.g., the most commonly used Xing header contains only 100 seek table entries, which may not provide enough resolution for large files.
I'm still surprised about the complete lack of support for those headers in AVFoundation, since I would consider it a low-hanging fruit in terms of improving usability for the majority of use cases (excluding pod casts).
Disclaimer: I've worked on MP3TrackDemuxer for Gecko/Firefox.
eamsen | 9 years ago
The plan is to make it the default in Firefox 51 on desktop, assuming the staged roll out is successful.
Also, the current approach will not considerably increase resource usage for heavy tab users as FF will only run one content process shared across all tabs.
eamsen | 9 years ago
I don't share questions as a matter of principle, fwiw.
eamsen | 9 years ago
eamsen | 10 years ago
eamsen | 10 years ago
You can find query time evaluation in the performance recap on the results page I linked. For NYC it's around 2.2s for the Dijkstra (baseline) and 27ms for the TP-based search.
For single-threaded pre-computation and shortest-path queries, I would expect you to need around 8GB for NYC, less for Toronto and you can get the Honolulu feeds to run on <2GB (which was my local test set).
Sorry for not being more specific or inaccurate.
You can find some GTFS feeds here: http://www.gtfs-data-exchange.com
eamsen | 10 years ago
Transfer patterns also behave robustly given real-time updates on the network, which we have shown here: http://stromboli.informatik.uni-freiburg.de/student-projects...
On top of being an excellent researcher, Hannah Bast is one of the best professors I've had pleasure of studying under and working with, so I'm happy to see her getting credit for this.
eamsen | 10 years ago
eamsen | 10 years ago
The average is influenced by outliers, so in cases with high income inequality, it does not necessarily represent central tendency well. In such cases, the median (or other percentiles) can be used for more accurate representations of economic power.
eamsen | 10 years ago
eamsen | 10 years ago
[1] https://de.wikipedia.org/wiki/Wirtschaft_Deutschlands (for the lack of a better source)
eamsen | 11 years ago
"The result of such an explosion is that problems, like shortest path problems, grow so quickly as to become practically incomputable, taking a practically infinite amount of time to solve."
This is exactly the reason why neither Dijkstra nor a variant thereof is a feasible solution for real-world route planning (we would be talking about hours instead of ms per query). However, variants of Dijkstra are used in the pre-computational steps for the actual routing algorithms like Contraction Hierarchies or Transit Node Routing.
eamsen | 11 years ago
Cloud services: https://wiki.mozilla.org/CloudServices
Content services (tiles): https://wiki.mozilla.org/Content_services
eamsen | 11 years ago
[1] https://www.mozilla.org/en-US/foundation/annualreport/2013/
eamsen | 11 years ago
eamsen | 11 years ago
eamsen | 11 years ago
eamsen | 11 years ago
GeckoView exposes a wide range of privacy (including anti-tracking and anti-fingerprinting) features in a (hopefully) comprehensive API, see https://mozilla.github.io/geckoview/javadoc/mozilla-central/..., and continues expanding its privacy settings.
> Some you can install extensions (you can't on this and on mozilla focus)...
GeckoView also exposes a WebExtension API, see https://mozilla.github.io/geckoview/javadoc/mozilla-central/..., and continues to expand extension support.
> ...some you can fiddle with user-UNfriendly settings in about:config...
You seem to have answered one of your own questions here.
I also have the impression that you might have not commented on the GeckoView library, but on some range of Mozilla products (you named Focus).