Re: [Haskell-cafe] Subcategories on Hackage

2011-06-05 Thread Paolino
I think there are two reasons to browse the hackage database.

First reason reflects the common need to find a library that suites one's
needs. In this case it's very easy to find it with google adding hackage
haskell to the submitted word list.

Second reason is to have a nice landscape of packages when one enters the
site.
For the second reason, which is real browsing, categories are a pain,
whoever and however they are done. The more they are correct , the more they
are difficult to understand. The more they are easy like tags the more it's
difficult to put them in a hierarchy.
One well known solution is to put tags in a high dimensional space where the
tag names and distance between tags is defined by statistics on the tags
cloud of each tag holder (packages). In this case browsing is jumping from
one tag to another *near* one in the tag space and see the packages *around*
, while inserting new packages changes the position of the tags in their
space.
An easiest , but somewhat wrong, solution is give each tag a dimension and
have the packages in the space to browse.

Ontologies are more on formalising the meaning (seen as interrelations) of
concepts, which tags are not, and I don't think even software categories
are. But this is really debatable.

my 2 cents

paolino



2011/6/5 Evan Laforge qdun...@gmail.com

 On Sat, Jun 4, 2011 at 7:46 PM, Felipe Almeida Lessa
 felipe.le...@gmail.com wrote:
  tl;dr: I don't think ontologies are suitable for Hackage.

 I think I agree.  For instance, I just uploaded fix-imports and had to
 decide which categories it is in.  It manages imports, which is
 IDE-like and people looking for IDE-like features might be interested,
 so IDE.  It's concerned with haskell itself, so Haskell.  And it's
 meant to be used with an editor, though it isn't an editor itself, so
 Editor.  It's actually none of those things, but there's no specific
 category for it, and if there were I think it would be too small to be
 useful.  So I picked things I think people who might be interested in
 it would be searching for.

 I don't think a hierarchy would have helped in this case, but tags
 would be appropriate.  Actually, I wound up using the categories like
 tags.  I think we just need better search, e.g. +tag +tag or
 something.

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-05 Thread Andrew Coppin

On 05/06/2011 06:55 AM, Evan Laforge wrote:


I don't think a hierarchy would have helped in this case, but tags
would be appropriate.  Actually, I wound up using the categories like
tags.  I think we just need better search, e.g. +tag +tag or
something.


+1 to all of the above.

Also, I don't think listing every package on all of Hackage in one giant 
page is very useful any more. (I gather it was only meant to be a 
temporary interface in the first place...)


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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-05 Thread Brandon Allbery
On Sun, Jun 5, 2011 at 07:51, Andrew Coppin andrewcop...@btinternet.com wrote:
 Also, I don't think listing every package on all of Hackage in one giant
 page is very useful any more. (I gather it was only meant to be a temporary
 interface in the first place...)

+1 (really +(foldl' (+) (repeat 1))...) — Hackage is *painful* these days.

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-05 Thread serialhex
On Sun, Jun 5, 2011 at 1:36 PM, Brandon Allbery allber...@gmail.com wrote:

 On Sun, Jun 5, 2011 at 07:51, Andrew Coppin andrewcop...@btinternet.com
 wrote:
  Also, I don't think listing every package on all of Hackage in one giant
  page is very useful any more. (I gather it was only meant to be a
 temporary
  interface in the first place...)

 +1 (really +(foldl' (+) (repeat 1))...) — Hackage is *painful* these days.
 http://www.haskell.org/mailman/listinfo/haskell-cafe


i havn't a fscking clue how to implement such a beast, but i've seen
(somewhere) tags that have their own heirarchy, so you could have (for
instance)

Image Stuff
 -2D
 -3D
 -Fractal
 -...etc...

and also having multiple tags would help classify things, like a 3D Fractal
renderer would be under Image Stuff - 3D Image Stuff - Fractal and
probably even under Math Stuff (yeah, i know you *love* my technical names
:P )

just my 0.02 cents
hex


-- 

  Other than the fact Linux has a cool name, could someone explain why I
  should use Linux over BSD?

 No.  That's it.  The cool name, that is.  We worked very hard on
 creating a name that would appeal to the majority of people, and it
 certainly paid off: thousands of people are using linux just to be able
 to say OS/2? Hah.  I've got Linux.  What a cool name.  386BSD made the
 mistake of putting a lot of numbers and weird abbreviations into the
 name, and is scaring away a lot of people just because it sounds too
 technical.
-- Linus Torvalds' follow-up to a question about Linux
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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Vo Minh Thu
2011/6/4 Tillmann Vogt tillmann.v...@rwth-aachen.de:
 Hi,

 There are some categories on Hackage that have become so large that it is
 hard to find something, i.e. Data(414 packages) and Graphics (191). Thats
 why I suggest to use subcategories separated from the category with a dot.
 To show that this makes sense I made subcategories for graphics libraries at
 the end of this email.
 Whatever happens to hackage2 this would be an immediate improvement.

 How
 --
 I would volunteer for the manual categorization and let the community look
 over it.
 I could upload the changes with a script but the version number has to
 increase even if only the category has changed. I also don't want to be
 responsible for a massive spike in the upload statistics.
 Shouldn't the cabal file be excluded from the versioning policy? = It is
 allowed to upload a library with the same version number if only the cabal
 file has changed. One should write a notifiaction mail to all owners to
 reply if they don't agree. Then after a week executing the script that
 applies the changes.

 [snip]

Hi,

I would simply prefer tags.

Actually, there is a problem that becomes even worse in your proposal:
packages appearing in multiple categories, and packages not appearing
in some expected category.

A simple example in your proposed categories: HDRUtils library: should
it be in 2d, RasterFormats, or maybe in 2dFormats, ... with tags, 2d,
raster, format, can be used, but also hdr, image, etc.

I don't remember what was proposed for hackage 2.

Cheers,
Thu

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Yves Parès
Why not hierarchical tags? (Tags organized in directories, well, basically,
tags with slashes or dots)
This is the most flexible IMHO.

2011/6/4 Vo Minh Thu not...@gmail.com

 2011/6/4 Tillmann Vogt tillmann.v...@rwth-aachen.de:
  Hi,
 
  There are some categories on Hackage that have become so large that it is
  hard to find something, i.e. Data(414 packages) and Graphics (191). Thats
  why I suggest to use subcategories separated from the category with a
 dot.
  To show that this makes sense I made subcategories for graphics libraries
 at
  the end of this email.
  Whatever happens to hackage2 this would be an immediate improvement.
 
  How
  --
  I would volunteer for the manual categorization and let the community
 look
  over it.
  I could upload the changes with a script but the version number has to
  increase even if only the category has changed. I also don't want to be
  responsible for a massive spike in the upload statistics.
  Shouldn't the cabal file be excluded from the versioning policy? = It is
  allowed to upload a library with the same version number if only the
 cabal
  file has changed. One should write a notifiaction mail to all owners to
  reply if they don't agree. Then after a week executing the script that
  applies the changes.
 
  [snip]

 Hi,

 I would simply prefer tags.

 Actually, there is a problem that becomes even worse in your proposal:
 packages appearing in multiple categories, and packages not appearing
 in some expected category.

 A simple example in your proposed categories: HDRUtils library: should
 it be in 2d, RasterFormats, or maybe in 2dFormats, ... with tags, 2d,
 raster, format, can be used, but also hdr, image, etc.

 I don't remember what was proposed for hackage 2.

 Cheers,
 Thu

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Tillmann Vogt

Am 04.06.2011 11:08, schrieb Vo Minh Thu:

2011/6/4 Tillmann Vogttillmann.v...@rwth-aachen.de:

Hi,

There are some categories on Hackage that have become so large that it is
hard to find something, i.e. Data(414 packages) and Graphics (191). Thats
why I suggest to use subcategories separated from the category with a dot.
To show that this makes sense I made subcategories for graphics libraries at
the end of this email.
Whatever happens to hackage2 this would be an immediate improvement.

How
--
I would volunteer for the manual categorization and let the community look
over it.
I could upload the changes with a script but the version number has to
increase even if only the category has changed. I also don't want to be
responsible for a massive spike in the upload statistics.
Shouldn't the cabal file be excluded from the versioning policy? =  It is
allowed to upload a library with the same version number if only the cabal
file has changed. One should write a notifiaction mail to all owners to
reply if they don't agree. Then after a week executing the script that
applies the changes.

[snip]

Hi,

I would simply prefer tags.

Actually, there is a problem that becomes even worse in your proposal:
packages appearing in multiple categories, and packages not appearing
in some expected category.


Well, what is the difference between a tag and a category? The second 
sounds more mathematical.
A sub tag or a sub category is better because some categories have 
clearly a sub relation. I.e. I cannot imagine 2d-image-formats to be 
part of some other category than graphics. But generally I agree that 
more tags are also a solution, but how to display this without 
increasing the page size. So I think in the end it is tradeoff between 
display size and reasonable narrowing of where a category can belong.



A simple example in your proposed categories: HDRUtils library: should
it be in 2d, RasterFormats, or maybe in 2dFormats, ... with tags, 2d,
raster, format, can be used, but also hdr, image, etc.


I don't mean that a library should appear in only one (sub-)category,  
HDRUtils may appear in all the categories you mention. but if someone 
wants to know what raster image formats are supported he immediately 
finds it ind RasterFormats.



I don't remember what was proposed for hackage 2.

Cheers,
Thu





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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Stephen Tetley
On 4 June 2011 10:42, Tillmann Vogt tillmann.v...@rwth-aachen.de wrote:

 Well, what is the difference between a tag and a category? The second sounds
 more mathematical.

Although it doesn't exist (yet), tags would support a filtering view.
As for categories, I'll be the first to play the joker and mention the
essay Ontology is overrated...

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Sebastian Fischer
http://www.shirky.com/writings/ontology_overrated.html

On Sat, Jun 4, 2011 at 10:02 AM, Tillmann Vogt
tillmann.v...@rwth-aachen.de wrote:
 Hi,

 There are some categories on Hackage that have become so large that it is
 hard to find something, i.e. Data(414 packages) and Graphics (191). Thats
 why I suggest to use subcategories separated from the category with a dot.
 To show that this makes sense I made subcategories for graphics libraries at
 the end of this email.
 Whatever happens to hackage2 this would be an immediate improvement.

 How
 --
 I would volunteer for the manual categorization and let the community look
 over it.
 I could upload the changes with a script but the version number has to
 increase even if only the category has changed. I also don't want to be
 responsible for a massive spike in the upload statistics.
 Shouldn't the cabal file be excluded from the versioning policy? = It is
 allowed to upload a library with the same version number if only the cabal
 file has changed. One should write a notifiaction mail to all owners to
 reply if they don't agree. Then after a week executing the script that
 applies the changes.


 Categories for Graphics:

 Graphics.2d
   bacteria program: braindead utility to compose Xinerama backgrounds
   barchart library and program: Creating Bar Charts in Haskell
   chalkboard library and programs: Combinators for building and processing
 2D images.
   chalkboard-viewer library: OpenGL based viewer for chalkboard rendered
 images.
   Chart library: A library for generating 2D Charts and Plots
   dia-base library: An EDSL for teaching Haskell with diagrams - data types
   dia-functions library: An EDSL for teaching Haskell with diagrams -
 functions
   diagrams library: Embedded domain-specific language for declarative vector
 graphics
   diagrams-cairo library: Cairo backend for diagrams drawing EDSL
   diagrams-core library: Core libraries for diagrams EDSL
   diagrams-lib library: Embedded domain-specific language for declarative
 graphics
   explore program: Experimental Plot data Reconstructor
   funcmp library: Functional MetaPost
   gloss library: Painless 2D vector graphics, animations and simulations.
   gloss-examples programs: Examples using the gloss library
   GoogleChart library: Generate web-based charts using the Google Chart API
   graphics-drawingcombinators library: A functional interface to 2D drawing
 in OpenGL
   haha library and program: A simple library for creating animated ascii art
 on ANSI terminals.
   HDRUtils library: Utilities for reading, manipulating, and writing HDR
 images
   hevolisa program: Genetic Mona Lisa problem in Haskell
   hevolisa-dph program: Genetic Mona Lisa problem in Haskell - using Data
 Parallel Haskell
   Hieroglyph library: Purely functional 2D graphics for visualization.
   HPlot library and program: A minimal monadic PLplot interface for Haskell
   hs-captcha library: Generate images suitable for use as CAPTCHAs in online
 web-form security.
   hs-gchart library: Haskell wrapper for the Google Chart API
   hsparklines library: Sparklines for Haskell
   internetmarke program: Shell command for constructing custom stamps for
 German Post
   plot library: A plotting library, exportable as eps/pdf/svg/png or
 renderable with gtk
   plot-gtk library: GTK plots and interaction with GHCi
   printxosd program: Simple tool to display some text on an on-screen
 display
   scaleimage program: Scale an image to a new geometry
   testpattern program: Display a monitor test pattern
   wumpus-basic library: Basic objects and system code built on Wumpus-Core.
   wumpus-core library: Pure Haskell PostScript and SVG generation.
   wumpus-drawing library: High-level drawing objects built on Wumpus-Basic.
   wumpus-microprint library: Microprints - greek-text pictures.
   wumpus-tree library: Drawing trees
   zsh-battery program: Ascii bars representing battery status

 Graphics.3d
   Attrac program: Visualisation of Strange Attractors in 3-Dimensions
   cal3d library: Haskell binding to the Cal3D animation library.
   cal3d-examples programs: Examples for the Cal3d animation library.
   cal3d-opengl library: OpenGL rendering for the Cal3D animation library
   FieldTrip library: Functional 3D
   gnuplot library and program: 2D and 3D plots using gnuplot
   HGL library: A simple graphics library based on X11 or Win32
   hgl-example program: Various animations generated using HGL
   IcoGrid library: Library for generating grids of hexagons and pentagons
 mapped to a sphere.
   nymphaea program: An interactive GUI for manipulating L-systems
   reactive-fieldtrip library: Connect Reactive and FieldTrip
   reactive-glut library: Connects Reactive and GLUT

 Graphics.Fractal
   fractal program: Draw Newton, Julia and Mandelbrot fractals
   gmndl program: Mandelbrot Set explorer using GTK
   hfractal program: OpenGL fractal renderer
   mandulia program: A zooming visualisation of the Mandelbrot Set as many
 Julia Sets.


Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Tillmann Vogt

Am 04.06.2011 15:00, schrieb Sebastian Fischer:

http://www.shirky.com/writings/ontology_overrated.html



I think I have read that article a long time ago. I just looked at it 
again. Very lengthy but true.
In the middle there is a section when ontologies work well and ... it 
all applies to Hackage.


When Does Ontological Classification Work Well?

Domain to be Organized

 Small corpus   3k libraries is nothing compared to the whole 
web (referring to the yahoo example), or every book on earth

Formal categories   already exist, just need some improvement
 Stable entities Haskell is a mathematical language, and if 
there is one thing that will never change then it is math

 Restricted entities  access only after personal email
 Clear edges ?

Participants
 Expert catalogers   Maybe the best 
educated programmers in the world

 Authoritative source of judgment   Maybe
 Coordinated users It could be better
 Expert usersmostly

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Felipe Almeida Lessa
On Sat, Jun 4, 2011 at 10:41 AM, Tillmann Vogt
tillmann.v...@rwth-aachen.de wrote:
 Formal categories   already exist, just need some improvement

I don't see how the categories we have are near formal categories, but
I digress.

  Stable entities         Haskell is a mathematical language, and if there is
 one thing that will never change then it is math

I also can't see this so clearly.  It is like saying that books are
just letters on paper, and nothing will change that.  What we need to
categorize is what is being done with Haskell, not Haskell itself.

  Restricted entities  access only after personal email

We have the opposite, any one can upload a library to Hackage and I
don't think anyone wants to change that.

  Clear edges             ?

See his example, where he says that there are no blended elements.  A
Haskell library may have characteristics from two or more different
categories.

  Expert catalogers                               Maybe the best educated
 programmers in the world

We don't have any catalogers at all!  =(

  Authoritative source of judgment   Maybe

We also don't have an authoritative source of judgement, but that is
something easier to change.

  Coordinated users                             It could be better

There is almost no coordination at all.

  Expert users                                        mostly

Yes, mostly, I agree =).


tl;dr: I don't think ontologies are suitable for Hackage.

Cheers!

-- 
Felipe.

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread wren ng thornton

On 6/4/11 9:41 AM, Tillmann Vogt wrote:

Am 04.06.2011 15:00, schrieb Sebastian Fischer:

http://www.shirky.com/writings/ontology_overrated.html


I think I have read that article a long time ago. I just looked at it
again. Very lengthy but true.
In the middle there is a section when ontologies work well and ... it
all applies to Hackage.


I'm not so sure of that.


When Does Ontological Classification Work Well?

Domain to be Organized

Small corpus3k libraries is nothing compared to the whole web
(referring to the yahoo example), or every book on earth


Sure, it's small by library standards; but then again, libraries have 
curators. Libraries don't have to deal with everyone just filling out 
their own metadata when donating a book to the library. In comparison to 
others corpora of its kind, Hackage is of middling size and still 
growing. The relevant corpora here are things like CPAN, CTAN, CRAN and 
the like; not the whole internet, nor even a university library.



Formal categoriesalready exist, just need some improvement


The categories aren't formal. Formal categorization means things like 
the names of biological species or the various constructs of abstract 
algebra, things which have a fixed and definite definition. Even the 
ontology of biology suffered a major upset over the last two decades as 
genetic sequencing demonstrated that the previous organization of 
species was woefully wrong.


When is something a 2D graphics library vs a 3D library? What about all 
the shades in between, all the various options like depth parallax, 
pseudo-3D, fixed perspective, sprites on 3D backgrounds,... before you 
enter true 3D rendering? Something like the raster category may be a bit 
more formal, but even with my feeble knowledge of graphics I know that 
graphics as a whole is a mish mash of differing things and not a 
formally specified domain.



Stable entitiesHaskell is a mathematical language, and if there is
one thing that will never change then it is math


Haskell is quite mathematical, but mathematics have shifted and changed 
dramatically over the years. Math changes all the time.


Programming libraries and projects even moreso. Goals and directions 
change all the time. What began as a project in category A could easily 
shift to become focused on category B.



Restricted entitiesaccess only after personal email


What Clay means here is things like a library that only deals in bound 
volume books, as opposed to dealing also in other literary media 
(papyrus, velum,...) or in non-literary media (music, video,...).


This does describe Hackage pretty well though. It's only for software, 
and only for software written in (or for) Haskell. While that's still a 
very broad domain, at least all the entities in it are of the same kind.



Clear edges ?

Participants
Expert catalogersMaybe the best educated programmers in the world


Even if we are the best educated, I doubt there are very many Haskellers 
with expert-level experience in cataloging. How many of us work as 
librarians, ontologists, or other professions in charge of organizing 
and curating data? There are a few, I'm sure. Some work in databases, 
and some do annotation work (e.g., the NLPers), but the average 
Haskeller is not an expert cataloger. And I'm sure the experts are too 
busy to have all of Hackage foisted upon them.



Authoritative source of judgmentMaybe


Hackage has no Benevolent Dictator For Life (that I'm aware of).

--
Live well,
~wren

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Re: [Haskell-cafe] Subcategories on Hackage

2011-06-04 Thread Evan Laforge
On Sat, Jun 4, 2011 at 7:46 PM, Felipe Almeida Lessa
felipe.le...@gmail.com wrote:
 tl;dr: I don't think ontologies are suitable for Hackage.

I think I agree.  For instance, I just uploaded fix-imports and had to
decide which categories it is in.  It manages imports, which is
IDE-like and people looking for IDE-like features might be interested,
so IDE.  It's concerned with haskell itself, so Haskell.  And it's
meant to be used with an editor, though it isn't an editor itself, so
Editor.  It's actually none of those things, but there's no specific
category for it, and if there were I think it would be too small to be
useful.  So I picked things I think people who might be interested in
it would be searching for.

I don't think a hierarchy would have helped in this case, but tags
would be appropriate.  Actually, I wound up using the categories like
tags.  I think we just need better search, e.g. +tag +tag or
something.

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Re: [Haskell-cafe] Subcategories in Hackage

2010-09-12 Thread Evan Laforge
 Perhaps, this is madness, but I wanted to read other opinions on this topic.

Packages already have multiple tags, right?  So how about a search box
that uses ANDed tags (in addition to description etc), and a browsing
interface where you can see tags of packages matching the current
search, and click on one to AND it into the search?

That might be easier than trying to fit everything into one hierarchy.
 Some packages can go in more than one place.
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Re: [Haskell-cafe] Subcategories in Hackage

2010-09-12 Thread Ivan Lazar Miljenovic
On 13 September 2010 11:37, Evan Laforge qdun...@gmail.com wrote:
 Perhaps, this is madness, but I wanted to read other opinions on this topic.

 Packages already have multiple tags, right?  So how about a search box
 that uses ANDed tags (in addition to description etc), and a browsing
 interface where you can see tags of packages matching the current
 search, and click on one to AND it into the search?

 That might be easier than trying to fit everything into one hierarchy.
  Some packages can go in more than one place.

Perhaps a better statement of what each tag actually represents so
that people can better choose which tags fit their package.

-- 
Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com
IvanMiljenovic.wordpress.com
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Re: [Haskell-cafe] Subcategories in Hackage

2010-09-12 Thread Daniel Díaz

El Lun, 13 de Septiembre de 2010, 3:37 am, Evan Laforge escribió:
 That might be easier than trying to fit everything into one hierarchy.
  Some packages can go in more than one place.


I have not contradicted that. A package can go somewhere. For example:

CAT. A
* SUBCAT. A1
** Pack. 1
* SUBCAT. A2
** Pack. 2
** Pack. 3
CAT. B
* SUBCAT. B1
** Pack. 4
** Pack. 3
* SUBCAT. B2
** Pack. 1
** Pack. 5

Thanks for the opinion.

-- 
Daniel Díaz

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