mirror of
https://github.com/papers-we-love/papers-we-love.git
synced 2024-10-27 20:34:20 +00:00
20 lines
1.0 KiB
Markdown
20 lines
1.0 KiB
Markdown
## Information Retrieval
|
|
|
|
Information retrieval is the activity of obtaining information resources relevant to an information need from a collection of information resources. (Says Wikipedia).
|
|
|
|
The included documents are
|
|
|
|
*
|
|
[Graph of Word and TW-IDF](http://www.lix.polytechnique.fr/~rousseau/papers/rousseau-cikm2013.pdf) - Francois Rousseau & Michalis Vazirgiannis
|
|
|
|
The traditional IR system stores term-specific statistics (typically
|
|
a term's frequency in each document - which we call TF) in an index.
|
|
Such a model ignores dependencies between terms and considers a
|
|
document's terms to occur independently of each other (and is aptly
|
|
called the bag-of-words model). In this paper the authors use a
|
|
statistic that uses a graph representation of a document to encode
|
|
dependencies between terms and replace the TF statistic with a new
|
|
TW statistic based on the graph constructed and achieve
|
|
significantly better results that popular existing models. This
|
|
paper won a honorable mention at CIKM 2013.
|