Building


















by
Open

       Collaboration



         Craig
Macdonald

       University
of
Glasgow

      ...
Motivations

•  Why
should
we
have
IR
platforms?

  –  They
facilitate
research,
by
bringing
researchers
close

     to
th...
History
of
Terrier

•  2001‐2004:
Terrier
started
as
EPSRC
(British

   research
council)
project:
Iadh
Ounis,
Gianni

   ...
Current
Terrier
Core

•  A
framework
for
doing
IR
experimentation
and

   building
IR
apps

•  Supports
indexing
commonly
...
Popularity

•  5000
downloads
since
2005


•  Growing
academic
usage

  –  FIRE:
most
popular
platform

  –  CLEF:
widely
...
Working
with
users

•  The
discussion
forum
provides
a
place
for

   users
to
ask
questions
about
how
to
use
the

   platf...
Working
with
developers

•  A
central
benefit
of
open
source
is
that
others

   can
use
and
improve
that
software,
to
the
...
Issue
Tracking





Key
 Summary
        Resolution

Issue
Tracking

•  Allows
people
to
collaborate
on
making

   changes
to
Terrier

•  Using
the
issue
tracker,
proposed
cha...
Contributing
to
Terrier

1.  File
an
issue
about
the
proposed
changes

2.  Propose
a
patch

3.  Some
discussion
may
ensue
...
Filing
an
Issue




One
sentence
about
the
issue





What
version
of
Terrier
has
this
issue?





               More
det...
Acceptable
Patches

•  Fits
with
Terrier’s
style


   –  E.g.
comments,
javadoc,
documentation

   –  Reuses
existing
code...
Open
Source
Code
Repository

•  We
work
on
Terrier
for
months
before
releases

•  However,
patches
need
to
be
up‐to‐date

...
Our
limitations


•  Our
aim
is
to
do
research

•  The
platform
facilitates
that.
By
having
the
core

   platform
open
sou...
Conclusions

•  Motivations
for
open
source
IR
platform


•  Engaging
with
users

      http://ir.dcs.gla.ac.uk/terrier/fo...
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Building


















 Terrier by
 Open
 Collaboration

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Transcript of "Building


















 Terrier by
 Open
 Collaboration"

  1. 1. Building


















by
Open
 Collaboration
 Craig
Macdonald
 University
of
Glasgow
 craigm@dcs.gla.ac.uk

  2. 2. Motivations
 •  Why
should
we
have
IR
platforms?
 –  They
facilitate
research,
by
bringing
researchers
close
 to
the
state‐of‐the‐art
 •  Why
should
we
have
!quot;#$%&!'()#
IR
platforms?
 –  They
facilitate
greater
research
potential
 •  Keep
in
contact
with
the
commercial
companies
 –  They
provide
visibility
 –  By
contributing
towards
open
source
platforms,
we
 can
all
reap
the
benefits

  3. 3. History
of
Terrier
 •  2001‐2004:
Terrier
started
as
EPSRC
(British
 research
council)
project:
Iadh
Ounis,
Gianni
 Amati,
Ben
He
&
Vassilis
Plachouras
form
 platform.
I
join
later.
 •  2005:
v1.0.0
core
released
by
the
Univ.
of
 Glasgow
as
open
source
under
the
MPL
 license,
followed
later
by
v.1.0.1
and
v1.0.2
 •  2007:
v1.1.0,
v1.1.1
released
 •  2008:
v2.0,
v2.1,
v2.2
released

  4. 4. Current
Terrier
Core
 •  A
framework
for
doing
IR
experimentation
and
 building
IR
apps
 •  Supports
indexing
commonly
used
IR
research
 collections
(e.g.
TREC).
Indexing
options
are
 direct
indexing,
single‐pass
indexing
&
Map
 Reduce‐based
indexing
 •  Standard
retrieval
facilities,
with
many
 weighting
models,
including
Query
Expansion
 •  Sample
desktop
search
application

  5. 5. Popularity
 •  5000
downloads
since
2005
 •  Growing
academic
usage
 –  FIRE:
most
popular
platform
 –  CLEF:
widely
used
platform
 –  TREC:
for
2008,
one
of
most
popular
platforms

  6. 6. Working
with
users
 •  The
discussion
forum
provides
a
place
for
 users
to
ask
questions
about
how
to
use
the
 platform
 –  650
posts
from
August
2005
to
Feb
2009
 •  Allows
users
to
help
!a#$%&'$!(%
  7. 7. Working
with
developers
 •  A
central
benefit
of
open
source
is
that
others
 can
use
and
improve
that
software,
to
the
 benefit
of
others
 •  We
are
making
changes
to
make
it
easier
for
 patches
to
be
accepted
to
Terrier
 –  Issue
tracking
[In
place]
 –  Open
source
code
repository
[In
progress]

  8. 8. Issue
Tracking
 Key
 Summary
 Resolution

  9. 9. Issue
Tracking
 •  Allows
people
to
collaborate
on
making
 changes
to
Terrier
 •  Using
the
issue
tracker,
proposed
changes
can
 be
discussed,
contributed
code
patches
can
be
 attached
and
reviewed

  10. 10. Contributing
to
Terrier
 1.  File
an
issue
about
the
proposed
changes
 2.  Propose
a
patch
 3.  Some
discussion
may
ensue
 4.  Once
the
patch
is
deemed
*))#quot;+*,-#,
it
will
 be
committed
by
a
committer
 5.  Next
version
of
Terrier
will
include
 contributed
code

  11. 11. Filing
an
Issue
 One
sentence
about
the
issue
 What
version
of
Terrier
has
this
issue?
 More
details
about
the
problem:
 enough
information
to
 reproduce
the
problem

  12. 12. Acceptable
Patches
 •  Fits
with
Terrier’s
style

 –  E.g.
comments,
javadoc,
documentation
 –  Reuses
existing
code
 •  Can
be
cleanly
applied
(up
to
date
with
 current
code)
 •  Does
not
break
existing
functionality
 –  All
test
cases
pass
 •  Is
agreeable
to
the
committer

  13. 13. Open
Source
Code
Repository
 •  We
work
on
Terrier
for
months
before
releases
 •  However,
patches
need
to
be
up‐to‐date
 •  In
progress:
open
up
Terrier
core
source
 repository
 •  Patches
can
then
in‐sync
with
current
source
 –  Easier
to
commit
and
accept!

  14. 14. Our
limitations
 •  Our
aim
is
to
do
research
 •  The
platform
facilitates
that.
By
having
the
core
 platform
open
source
we
help
&'$!()%do
research
 also
 •  Open
source
works
best
when
&'$!()%can
 contribute
back
as
well
 •  We
need
your
help
to
build
a
community
–
we
 can’t
spend
all
year
developing
code
to
release,
 and
helping
users
 –  We
can
all
take
a
share
of
the
development

and
of
 assisting
users
on
the
forum

  15. 15. Conclusions
 •  Motivations
for
open
source
IR
platform
 •  Engaging
with
users
 http://ir.dcs.gla.ac.uk/terrier/forum/
 •  Engaging
with
developers
 http://ir.dcs.gla.ac.uk/terrier/issues/
 •  Filing
issues
and
contributing
patches


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