Displaying 20 results from an estimated 7292 matches for "schemes".
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scheme
2017 Apr 13
2
Omega: Missing support for newer weighting schemes
...a registry object to call
get_weighting_scheme() on (it's not a static method).
But the idea is to have a static method of Xapian::Weight to do
essentially that. It probably needs to take an optional Registry object
like Query::unserialise() does so the user can add their own custom
weighting schemes in:
static const Query unserialise(const std::string & serialised,
const Registry & reg = Registry());
> It should work given that we first separate the "scheme" string into two
> substrings namely "name" and "params&qu...
2017 Apr 09
3
Omega: Missing support for newer weighting schemes
On Sun, Apr 09, 2017 at 11:34:07PM +0530, Vivek Pal wrote:
> > Each scheme already has a human-readable name, and Xapian::Registry
> > can map that to an "examplar" object of the right type, so we
> > could take a string like "bm25 1 0.8", see the first word is "bm25"
> > and get a BM25Weight object, then call parse_params("1 0.8") on
2017 Apr 08
2
Omega: Missing support for newer weighting schemes
On Sat, Apr 08, 2017 at 09:11:22PM +0100, James Aylett wrote:
> On 8 Apr 2017, at 19:15, Vivek Pal <vivekpal.dtu at gmail.com> wrote:
>
> >> and the details of which weighting schemes were available in which version
> >> isn't a key part of the $set command itself.
> >
> > Do you suggest dropping that piece of information out? Since the reason behind
> > adding that is unclear to me so I'm not entirely sure if it would be a good
> > idea...
2014 Mar 01
2
Complete GSOC idea
...everyone,
I am thinking of working on the
following ideas for my GSOC proposal based on my discussions with Olly and
my own understanding. Rather than focusing on an entire perftest module, I
have decided to focus on implementing performance tests for weighting
schemes based on a wikipedia dump and in addition to that, build a
framework to measure the accuracy and relevance of new and old weighting
schemes.
* Measuring the relevance and accuracy of weighting schemes.*
- The accuracy of a weighting scheme can be measured by using the
concepts of precision...
2004 Nov 03
2
Suggested color schemes for points, not regions?
I have seen a couple of posts about color schemes like those at the
ColorBrewer site. Most recently:
http://geography.uoregon.edu/datagraphics/color_scales.htm
These color schemes can work very well for regions (bars, polygons,
images, etc.) but are not very suitable for points and/or lines.
Is anyone aware of research/suggestions for a color s...
2014 Nov 23
2
GSoc Project Idea Weighting Schemes (Ranking)
Hi,
I am Abhishek
Currently Xapian::Weight follows BM25 scheme, many models such as the
Divergence from Randomness (DfR) family of models, Unigram Language Model
and the Bi-gram Language Model implemented two years ago in GSoc 2012 yet
not merged to the master.
The new weighing schemes or improvement in implementing the previous models
to change the default scheme of BM25 from SMART with reference to this
paper www.aclweb.org/anthology/P10-1141
After skimming through the schemes implemented in Xapian::weight. There
seems a considerable hope in editing the algorithms to increase...
2001 Dec 06
1
Scheme in R
The initial authors of R said?, "...we implemented the language by
first writing an interpreter for a Scheme subset and then
progressively mutating it to resemble S." Further on in that article
they elaborated that their strategy was to create a parser that would
take expressions in S-like syntax and translate them to Scheme
S-expressions.
Does R still work that way? Can R be made to
2016 Jul 26
2
New password hashing scheme as plugin
Hi,
I want to add a new password hashing scheme as plugin and provide it for
the dovecot project, so that it will be included as optional plugin in
future releases.
Yet the plugin compiles fine and the .so file gets created.
My approach is to call the functions password_scheme_register() and
password_scheme_unregister() (src/auth/password-scheme.c) inside the
plugin's _init() and _deinit()
2020 May 24
2
paste(character(0), collapse="", recycle0=FALSE) should be ""
...t;
> were an error too.
This is actually the recycling scheme used by mapply():
> mapply(function(x, y, z) c(x, y, z), 1:10, integer(0), 5)
Error in mapply(FUN = FUN, ...) :
zero-length inputs cannot be mixed with those of non-zero length
AFAIK base R uses 3 different recycling schemes for n-ary operations:
(1) The recycling scheme used by arithmetic and comparison operations
(Arith, Compare, Logic group generics).
(2) The recycling scheme used by classic paste().
(3) The recycling scheme used by mapply().
Having such a core mechanism like recycling being inconsistent ac...
2016 Aug 01
3
New password hashing scheme as plugin
...bsodium support as plugin. When the plugin is
loaded, it exits with the mentioned error message "undefined symbol:
password_scheme_unregister"
Branch #2)
https://github.com/LuckyFellow/dovecot-core-libsodium/tree/2.2.25_libsodium_auth
This compiles fine and also works. The new hashing schemes SCRYPT and
ARGON2 are available to dovecot.
Libsodium support is not created as module, but only added if the
--with-libsodium option was passed to configure.
Regards,
Andreas
2000 Aug 08
0
[RHSA-2000:047-03] New umb-scheme packages are available.
---------------------------------------------------------------------
Red Hat, Inc. Security Advisory
Synopsis: New umb-scheme packages are available.
Advisory ID: RHSA-2000:047-03
Issue date: 2000-08-07
Updated on: 2000-08-07
Product: Red Hat Linux
Keywords: N/A
Cross references: N/A
2007 Apr 29
0
compiz-scheme. Interactive prompt and example startup file.
Beyond the general work on compiz-scheme (new wrappings, hooks, code
improvements, etc), I've added a few large new things:
1. Key bindings with modifiers. This lets you from any of your scheme
files/interactive prompt bind an arbitrary key + modifier to an
arbitrary scheme function. So you can define new Compiz behaviors and
shortcuts on the fly.
2. An interactive prompt. This sets up a
2017 Apr 08
2
Omega: Missing support for newer weighting schemes
> Hi, Vivek — there isn't any particular reason that I'm aware of. It's
> probably worth pointing (in the omegascript documentation) to the part of
> the getting started guide which talks about the different weighting schemes
If there isn't any reason then I'd like to send in a patch adding support for
those weighting schemes in weight.cc and I agree omegascript documentation
should also be updated to point to the weighting scheme section in the getting
started guide ($set command to be specific if I'm not...
2016 Aug 01
2
New password hashing scheme as plugin
...d error message "undefined symbol:
> > password_scheme_unregister"
> >
> >
> > Branch #2)
> >
> > https://github.com/LuckyFellow/dovecot-core-libsodium/tree/2.2.25_libsodium_auth
> >
> > This compiles fine and also works. The new hashing schemes SCRYPT and
> > ARGON2 are available to dovecot.
> > Libsodium support is not created as module, but only added if the
> > --with-libsodium option was passed to configure.
> >
> >
> >
> > Regards,
> > Andreas
>
> Hi!
>
> I had a look a...
2017 Sep 08
2
Automatic DB password hash scheme selection
Hi all,
Is there a way to get dovecot to recognize arbitrary password hash
schemes when looking up a password in a database? I originally set up
with #default_pass_scheme = MD5, and I would like to migrate to SHA512.
Seeing as the scheme is actually stored in the password column along
with the password in the format $_<scheme#>_$_<salt>_$_<passwordhash>_,
it s...
2011 Mar 28
2
GSoC 2011 Weighting Schemes
Hi, guys
I am Wenjin from Graduate School of Chinese Academy of Science, pursing a
master degree and my current research interests including using Data mining
and Information retrieve technology to analysis software engineering (SE)
data and support SE.
I have great interested in "Weight Schemes" project. and in the last few
days I have learnt some detail about DFR model family by reading some papers
and web page. I find that Terrier Project (http://terrier.org/) has
implement most of DFR scheme in Java language, and briefly read related
source of Terrier's package( org.terrier....
2013 Mar 03
0
Added code and tests for the tf-idf weighting scheme.
Hello guys.I have sent a pull request for the code and tests of the Tf-Idf
weighting scheme.
Please do let me know if any changes are required.Meanwhile,Ill begin
working on implementing normalizations which require additional statistics
and on the DFR schemes.
https://github.com/xapian/xapian/pull/6
On Tue, Feb 26, 2013 at 5:30 PM, <xapian-devel-request at lists.xapian.org>wrote:
> Send Xapian-devel mailing list submissions to
> xapian-devel at lists.xapian.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
&g...
2010 May 07
1
CRYPT scheme and 8 character limit
...for me to encrypt
and encode is a bad idea, anyway. So maybe I won't need dovecotpw. The
idea is that users supply an already-encrypted password. Most of the users
can fetch their login password from /etc/shadow on their own computer.
Wiki page http://wiki.dovecot.org/Authentication/PasswordSchemes indicates
that scheme name CRYPT is the one that uses the libc crypt() function. But
it also says it uses no more than 8 characters. Then there is MD5-CRYPT.
But that doesn't call crypt(), I presume. No limit on password size is
indicated. But this at least looks like SOME of the encrypted...
2012 Oct 02
2
[PATCH] Add SCRAM-SHA-1 password scheme
Hello,
attached is an hg export on top of the current dovecot-2.2 branch, which
adds support for a SCRAM-SHA-1 password scheme.
Ideally I'd want doveadm pw's rounds flag to apply to this, but that's
currently specific to the crypt password scheme, so I left it out for now.
Regards,
Florian Zeitz
-------------- next part --------------
# HG changeset patch
# User Florian Zeitz
2017 Apr 08
2
Omega: Missing support for newer weighting schemes
...9;s getting a bit long -
Undoubtedly; $set command has the longest section on the documentation page :)
But it would be hard splitting that up because the documentation is organised
in a way that each command is really contained in its own specific section.
> and the details of which weighting schemes were available in which version
> isn't a key part of the $set command itself.
Do you suggest dropping that piece of information out? Since the reason behind
adding that is unclear to me so I'm not entirely sure if it would be a good
idea.
Thanks,
Vivek