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6 <title>Petter Reinholdtsen: entries from October
2017</title>
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15 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
22 <h3>Entries from October
2017.
</h3>
26 <a href=
"http://people.skolelinux.org/pere/blog/Web_services_for_writing_academic_LaTeX_papers_as_a_team.html">Web services for writing academic LaTeX papers as a team
</a>
32 <p>I was surprised today to learn that a friend in academia did not
33 know there are easily available web services available for writing
34 LaTeX documents as a team. I thought it was common knowledge, but to
35 make sure at least my readers are aware of it, I would like to mention
36 these useful services for writing LaTeX documents. Some of them even
37 provide a WYSIWYG editor to ease writing even further.
</p>
39 <p>There are two commercial services available,
40 <a href=
"https://sharelatex.com">ShareLaTeX
</a> and
41 <a href=
"https://overleaf.com">Overleaf
</a>. They are very easy to
42 use. Just start a new document, select which publisher to write for
43 (ie which LaTeX style to use), and start writing. Note, these two
44 have announced their intention to join forces, so soon it will only be
45 one joint service. I've used both for different documents, and they
47 <a href=
"https://github.com/sharelatex/sharelatex">ShareLaTeX is free
48 software
</a>, while the latter is not. According to
<a
49 href=
"https://www.overleaf.com/help/17-is-overleaf-open-source">a
50 announcement from Overleaf
</a>, they plan to keep the ShareLaTeX code
51 base maintained as free software.
</p>
53 But these two are not the only alternatives.
54 <a href=
"https://app.fiduswriter.org/">Fidus Writer
</a> is another free
55 software solution with
<a href=
"https://github.com/fiduswriter">the
56 source available on github
</a>. I have not used it myself. Several
57 others can be found on the nice
58 <a href=
"https://alternativeto.net/software/sharelatex/">alterntiveTo
61 <p>If you like Google Docs or Etherpad, but would like to write
62 documents in LaTeX, you should check out these services. You can even
63 host your own, if you want to. :)
</p>
70 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
75 <div class=
"padding"></div>
79 <a href=
"http://people.skolelinux.org/pere/blog/Locating_IMDB_IDs_of_movies_in_the_Internet_Archive_using_Wikidata.html">Locating IMDB IDs of movies in the Internet Archive using Wikidata
</a>
85 <p>Recently, I needed to automatically check the copyright status of a
86 set of
<a href=
"http://www.imdb.com/">The Internet Movie database
87 (IMDB)
</a> entries, to figure out which one of the movies they refer
88 to can be freely distributed on the Internet. This proved to be
89 harder than it sounds. IMDB for sure list movies without any
90 copyright protection, where the copyright protection has expired or
91 where the movie is lisenced using a permissive license like one from
92 Creative Commons. These are mixed with copyright protected movies,
93 and there seem to be no way to separate these classes of movies using
94 the information in IMDB.
</p>
96 <p>First I tried to look up entries manually in IMDB,
97 <a href=
"https://www.wikipedia.org/">Wikipedia
</a> and
98 <a href=
"https://www.archive.org/">The Internet Archive
</a>, to get a
99 feel how to do this. It is hard to know for sure using these sources,
100 but it should be possible to be reasonable confident a movie is "out
101 of copyright" with a few hours work per movie. As I needed to check
102 almost
20,
000 entries, this approach was not sustainable. I simply
103 can not work around the clock for about
6 years to check this data
106 <p>I asked the people behind The Internet Archive if they could
107 introduce a new metadata field in their metadata XML for IMDB ID, but
108 was told that they leave it completely to the uploaders to update the
109 metadata. Some of the metadata entries had IMDB links in the
110 description, but I found no way to download all metadata files in bulk
111 to locate those ones and put that approach aside.
</p>
113 <p>In the process I noticed several Wikipedia articles about movies
114 had links to both IMDB and The Internet Archive, and it occured to me
115 that I could use the Wikipedia RDF data set to locate entries with
116 both, to at least get a lower bound on the number of movies on The
117 Internet Archive with a IMDB ID. This is useful based on the
118 assumption that movies distributed by The Internet Archive can be
119 legally distributed on the Internet. With some help from the RDF
120 community (thank you DanC), I was able to come up with this query to
121 pass to
<a href=
"https://query.wikidata.org/">the SPARQL interface on
125 SELECT ?work ?imdb ?ia ?when ?label
128 ?work wdt:P31/wdt:P279* wd:Q11424.
129 ?work wdt:P345 ?imdb.
132 ?work wdt:P577 ?when.
133 ?work rdfs:label ?label.
134 FILTER(LANG(?label) = "en").
139 <p>If I understand the query right, for every film entry anywhere in
140 Wikpedia, it will return the IMDB ID and The Internet Archive ID, and
141 when the movie was released and its English title, if either or both
142 of the latter two are available. At the moment the result set contain
143 2338 entries. Of course, it depend on volunteers including both
144 correct IMDB and The Internet Archive IDs in the wikipedia articles
145 for the movie. It should be noted that the result will include
146 duplicates if the movie have entries in several languages. There are
147 some bogus entries, either because The Internet Archive ID contain a
148 typo or because the movie is not available from The Internet Archive.
149 I did not verify the IMDB IDs, as I am unsure how to do that
152 <p>I wrote a small python script to extract the data set from Wikidata
153 and check if the XML metadata for the movie is available from The
154 Internet Archive, and after around
1.5 hour it produced a list of
2097
155 free movies and their IMDB ID. In total,
171 entries in Wikidata lack
156 the refered Internet Archive entry. I assume the
70 "disappearing"
157 entries (ie
2338-
2097-
171) are duplicate entries.
</p>
159 <p>This is not too bad, given that The Internet Archive report to
160 contain
<a href=
"https://archive.org/details/feature_films">5331
161 feature films
</a> at the moment, but it also mean more than
3000
162 movies are missing on Wikipedia or are missing the pair of references
165 <p>I was curious about the distribution by release year, and made a
166 little graph to show how the amount of free movies is spread over the
169 <p><img src=
"http://people.skolelinux.org/pere/blog/images/2017-10-25-verk-i-det-fri-filmer.png"></p>
171 <p>I expect the relative distribution of the remaining
3000 movies to
174 <p>If you want to help, and want to ensure Wikipedia can be used to
175 cross reference The Internet Archive and The Internet Movie Database,
176 please make sure entries like this are listed under the "External
177 links" heading on the Wikipedia article for the movie:
</p>
180 * {{Internet Archive film|id=FightingLady}}
181 * {{IMDb title|id=
0036823|title=The Fighting Lady}}
184 <p>Please verify the links on the final page, to make sure you did not
185 introduce a typo.
</p>
187 <p>Here is the complete list, if you want to correct the
171
188 identified Wikipedia entries with broken links to The Internet
189 Archive:
<a href=
"http://www.wikidata.org/entity/Q1140317">Q1140317
</a>,
190 <a href=
"http://www.wikidata.org/entity/Q458656">Q458656
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192 <a href=
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</a>,
347 <a href=
"http://www.wikidata.org/entity/Q7857590">Q7857590
</a>,
348 <a href=
"http://www.wikidata.org/entity/Q3372526">Q3372526
</a>,
349 <a href=
"http://www.wikidata.org/entity/Q3372642">Q3372642
</a>,
350 <a href=
"http://www.wikidata.org/entity/Q3372816">Q3372816
</a>,
351 <a href=
"http://www.wikidata.org/entity/Q3372909">Q3372909
</a>,
352 <a href=
"http://www.wikidata.org/entity/Q7959649">Q7959649
</a>,
353 <a href=
"http://www.wikidata.org/entity/Q7977485">Q7977485
</a>,
354 <a href=
"http://www.wikidata.org/entity/Q7992684">Q7992684
</a>,
355 <a href=
"http://www.wikidata.org/entity/Q3817966">Q3817966
</a>,
356 <a href=
"http://www.wikidata.org/entity/Q3821852">Q3821852
</a>,
357 <a href=
"http://www.wikidata.org/entity/Q3420907">Q3420907
</a>,
358 <a href=
"http://www.wikidata.org/entity/Q3429733">Q3429733
</a>,
359 <a href=
"http://www.wikidata.org/entity/Q774474">Q774474
</a></p>
365 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett
</a>.
370 <div class=
"padding"></div>
374 <a href=
"http://people.skolelinux.org/pere/blog/A_one_way_wall_on_the_border_.html">A one-way wall on the border?
</a>
380 <p>I find it fascinating how many of the people being locked inside
381 the proposed border wall between USA and Mexico support the idea. The
382 proposal to keep Mexicans out reminds me of
383 <a href=
"http://www.history.com/news/10-things-you-may-not-know-about-the-berlin-wall">the
384 propaganda twist from the East Germany government
</a> calling the wall
385 the “Antifascist Bulwark” after erecting the Berlin Wall, claiming
386 that the wall was erected to keep enemies from creeping into East
387 Germany, while it was obvious to the people locked inside it that it
388 was erected to keep the people from escaping.
</p>
390 <p>Do the people in USA supporting this wall really believe it is a
391 one way wall, only keeping people on the outside from getting in,
392 while not keeping people in the inside from getting out?
</p>
398 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
403 <div class=
"padding"></div>
407 <a href=
"http://people.skolelinux.org/pere/blog/Generating_3D_prints_in_Debian_using_Cura_and_Slic3r__prusa_.html">Generating
3D prints in Debian using Cura and Slic3r(-prusa)
</a>
413 <p>At my nearby maker space,
414 <a href=
"http://sonen.ifi.uio.no/">Sonen
</a>, I heard the story that it
415 was easier to generate gcode files for theyr
3D printers (Ultimake
2+)
416 on Windows and MacOS X than Linux, because the software involved had
417 to be manually compiled and set up on Linux while premade packages
418 worked out of the box on Windows and MacOS X. I found this annoying,
419 as the software involved,
420 <a href=
"https://github.com/Ultimaker/Cura">Cura
</a>, is free software
421 and should be trivial to get up and running on Linux if someone took
422 the time to package it for the relevant distributions. I even found
423 <a href=
"https://bugs.debian.org/706656">a request for adding into
424 Debian
</a> from
2013, which had seem some activity over the years but
425 never resulted in the software showing up in Debian. So a few days
426 ago I offered my help to try to improve the situation.
</p>
428 <p>Now I am very happy to see that all the packages required by a
429 working Cura in Debian are uploaded into Debian and waiting in the NEW
430 queue for the ftpmasters to have a look. You can track the progress
432 <a href=
"https://qa.debian.org/developer.php?email=3dprinter-general%40lists.alioth.debian.org">the
433 status page for the
3D printer team
</a>.
</p>
435 <p>The uploaded packages are a bit behind upstream, and was uploaded
436 now to get slots in
<a href=
"https://ftp-master.debian.org/new.html">the NEW
437 queue
</a> while we work up updating the packages to the latest
438 upstream version.
</p>
440 <p>On a related note, two competitors for Cura, which I found harder
441 to use and was unable to configure correctly for Ultimaker
2+ in the
442 short time I spent on it, are already in Debian. If you are looking
443 for
3D printer "slicers" and want something already available in
445 <a href=
"https://tracker.debian.org/pkg/slic3r">slic3r
</a> and
446 <a href=
"https://tracker.debian.org/pkg/slic3r-prusa">slic3r-prusa
</a>.
447 The latter is a fork of the former.
</p>
453 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
458 <div class=
"padding"></div>
462 <a href=
"http://people.skolelinux.org/pere/blog/Mangler_du_en_skrue__eller_har_du_en_skrue_l_s_.html">Mangler du en skrue, eller har du en skrue løs?
</a>
468 Når jeg holder på med ulike prosjekter, så trenger jeg stadig ulike
469 skruer. Det siste prosjektet jeg holder på med er å lage
470 <a href=
"https://www.thingiverse.com/thing:676916">en boks til en
471 HDMI-touch-skjerm
</a> som skal brukes med Raspberry Pi. Boksen settes
472 sammen med skruer og bolter, og jeg har vært i tvil om hvor jeg kan
473 få tak i de riktige skruene. Clas Ohlson og Jernia i nærheten har
474 sjelden hatt det jeg trenger. Men her om dagen fikk jeg et fantastisk
475 tips for oss som bor i Oslo.
476 <a href=
"http://www.zachskruer.no/">Zachariassen Jernvare AS
</a> i
477 <a href=
"http://www.openstreetmap.org/?mlat=59.93421&mlon=10.76795#map=19/59.93421/10.76795">Hegermannsgate
478 23A på Torshov
</a> har et fantastisk utvalg, og åpent mellom
09:
00 og
479 17:
00. De selger skruer, muttere, bolter, skiver etc i løs vekt, og
480 så langt har jeg fått alt jeg har lett etter. De har i tillegg det
481 meste av annen jernvare, som verktøy, lamper, ledninger, etc. Jeg
482 håper de har nok kunder til å holde det gående lenge, da dette er en
483 butikk jeg kommer til å besøke ofte. Butikken er et funn å ha i
484 nabolaget for oss som liker å bygge litt selv. :)
</p>
490 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk
</a>.
495 <div class=
"padding"></div>
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"text-align: right;"><a href=
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"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
12)
</a></li>
814 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (
30)
</a></li>
816 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (
9)
</a></li>
818 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (
18)
</a></li>
820 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/h264">h264 (
20)
</a></li>
822 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju (
42)
</a></li>
824 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (
15)
</a></li>
826 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
20)
</a></li>
828 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
9)
</a></li>
830 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lego">lego (
4)
</a></li>
832 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
8)
</a></li>
834 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (
2)
</a></li>
836 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li>
838 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (
8)
</a></li>
840 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
39)
</a></li>
842 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (
9)
</a></li>
844 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
293)
</a></li>
846 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
189)
</a></li>
848 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (
33)
</a></li>
850 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/open311">open311 (
2)
</a></li>
852 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
65)
</a></li>
854 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
104)
</a></li>
856 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/raid">raid (
2)
</a></li>
858 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reactos">reactos (
1)
</a></li>
860 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
11)
</a></li>
862 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid (
3)
</a></li>
864 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
10)
</a></li>
866 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li>
868 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ruter">ruter (
5)
</a></li>
870 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (
2)
</a></li>
872 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
53)
</a></li>
874 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
4)
</a></li>
876 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (
5)
</a></li>
878 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
55)
</a></li>
880 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
6)
</a></li>
882 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (
12)
</a></li>
884 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (
52)
</a></li>
886 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (
4)
</a></li>
888 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/usenix">usenix (
2)
</a></li>
890 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/valg">valg (
9)
</a></li>
892 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
59)
</a></li>
894 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
4)
</a></li>
896 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
40)
</a></li>
902 <p style=
"text-align: right">
903 Created by
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