57,230 research outputs found
Neural Networks for Information Retrieval
Machine learning plays a role in many aspects of modern IR systems, and deep
learning is applied in all of them. The fast pace of modern-day research has
given rise to many different approaches for many different IR problems. The
amount of information available can be overwhelming both for junior students
and for experienced researchers looking for new research topics and directions.
Additionally, it is interesting to see what key insights into IR problems the
new technologies are able to give us. The aim of this full-day tutorial is to
give a clear overview of current tried-and-trusted neural methods in IR and how
they benefit IR research. It covers key architectures, as well as the most
promising future directions.Comment: Overview of full-day tutorial at SIGIR 201
The egalitarian effect of search engines
Search engines have become key media for our scientific, economic, and social
activities by enabling people to access information on the Web in spite of its
size and complexity. On the down side, search engines bias the traffic of users
according to their page-ranking strategies, and some have argued that they
create a vicious cycle that amplifies the dominance of established and already
popular sites. We show that, contrary to these prior claims and our own
intuition, the use of search engines actually has an egalitarian effect. We
reconcile theoretical arguments with empirical evidence showing that the
combination of retrieval by search engines and search behavior by users
mitigates the attraction of popular pages, directing more traffic toward less
popular sites, even in comparison to what would be expected from users randomly
surfing the Web.Comment: 9 pages, 8 figures, 2 appendices. The final version of this e-print
has been published on the Proc. Natl. Acad. Sci. USA 103(34), 12684-12689
(2006), http://www.pnas.org/cgi/content/abstract/103/34/1268
Discovering Scholarly Orphans Using ORCID
Archival efforts such as (C)LOCKSS and Portico are in place to ensure the
longevity of traditional scholarly resources like journal articles. At the same
time, researchers are depositing a broad variety of other scholarly artifacts
into emerging online portals that are designed to support web-based
scholarship. These web-native scholarly objects are largely neglected by
current archival practices and hence they become scholarly orphans. We
therefore argue for a novel paradigm that is tailored towards archiving these
scholarly orphans. We are investigating the feasibility of using Open
Researcher and Contributor ID (ORCID) as a supporting infrastructure for the
process of discovery of web identities and scholarly orphans for active
researchers. We analyze ORCID in terms of coverage of researchers, subjects,
and location and assess the richness of its profiles in terms of web identities
and scholarly artifacts. We find that ORCID currently lacks in all considered
aspects and hence can only be considered in conjunction with other discovery
sources. However, ORCID is growing fast so there is potential that it could
achieve a satisfactory level of coverage and richness in the near future.Comment: 10 pages, 5 figures, 5 tables accepted for publication at JCDL 201
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