13,952 Hits in 5.6 sec

Boosting Web Retrieval Through Query Operations [chapter]

Gilad Mishne, Maarten de Rijke
2005 Lecture Notes in Computer Science  
We explore the use of phrase and proximity terms in the context of web retrieval, which is different from traditional ad-hoc retrieval both in document structure and in query characteristics.  ...  We also analyze why phrase and proximity terms are far more effective for web retrieval than for ad-hoc retrieval.  ...  How can we boost web retrieval effectiveness, measured using any of the measures just mentioned, by means of automatic operations on queries?  ... 
doi:10.1007/978-3-540-31865-1_36 fatcat:sna7jjdfrjh6ritpvjesn3onjq

The bubble of web visibility

Marco Gori, Ian Witten
2005 Communications of the ACM  
c 1 Many Web page promotion companies guarantee that their clients' pages will appear in the top 10 positions for a given set of keywords.  ...  The general trend of promoting visibility is forcing search engine operators to modify their ranking model in ad hoc and secret ways in an attempt to outwit those who try to exploit it.  ...  Web page visibility becomes fully defined only at query time, when retrieved pages are sorted for presentation to the user.  ... 
doi:10.1145/1047671.1047715 fatcat:p5okeeiob5gfvhftjqnoglamwi

Using Clustering and Blade Clusters in the Terabyte Task

Giuseppe Attardi, Andrea Esuli, Chirag Patel
2004 Text Retrieval Conference  
Web search engines exploit conjunctive queries and special ranking criteria which differ from the disjunctive queries typically used for ad-hoc retrieval.  ...  Since conjunctive queries sometimes produce low recall, we tested a new approach to query expansion, which extracts additional query terms from a clustering of the snippets from the first query.  ...  A broker module instead gets instantiated within a thread pool through a Web interface to provide a query interface typical of Web search engines.  ... 
dblp:conf/trec/AttardiEP04 fatcat:mj7vdbewczer7lkl44mrxy7ufy

Content-Based Document Recommender System for Aerospace Grey Literature: System Design

K. Nageswara Rao, V.G. Talwar
2011 DESIDOC Journal of Library & Information Technology  
Recently intelligent agents gained importance as they are able to query databases and resources on Internet, remote library catalogs thereby reducing information overload on the user.  ...  Information Retrieval Systems played a vital role in the field of information & librarianship to find relevant information from vast number of documents.  ...  Figure 2 show two titles retrieved through general OPAC search.  ... 
doi:10.14429/djlit.31.3.1046 fatcat:sfmqvtqmizanbhi6zk6u7ahhwa

Improving Visibility of Libraries through SRU

A.K. Tyagi, Madhavi M. Dhanwantari, Aparna Raghuraman, Priyanka D. Kalbhor
2009 DESIDOC Journal of Library & Information Technology  
Library users nowadays expect digital libraries to be searchable through a single search form.  ...  The present work is intended to develop a client gateway using search and retrieval via URL (SRU) protocol for searching SRU-compliant databases, keeping in mind trials done in information retrieval in  ...  Search and Retrieve Web Services Search and retrieve web service (SRW) and search and retrieve URL service (SRU) 2 are web services-based protocols of the ZNG family that are built on the Z39.50 for querying  ... 
doi:10.14429/djlit.29.247 fatcat:iarmxbdv3bfivdoz5rhhyqqxzy

Supporting BioMedical Information Retrieval: The BioTracer Approach [chapter]

Heri Ramampiaro, Chen Li
2011 Lecture Notes in Computer Science  
To achieve this goal, we apply a series of information retrieval techniques to search in biomedical information and combine them in an optimal manner.  ...  Such a tool should be able to not only retrieve the sought information, but also filter out irrelevant documents, while giving the relevant ones the highest ranking.  ...  It is a search prototype that allows customized ranking of search results through boosting specific parts of documents, customizing scoring schemes, and allowing users to affect the ranking through user  ... 
doi:10.1007/978-3-642-23740-9_4 fatcat:p7v22begxvbj5mcg5i2f6cloum

Visual analytics for semantic based image retrieval (sbir): semantic tool

2016 International Journal of Latest Trends in Engineering and Technology  
Along with this, a boosting algorithm is use to improve the precision of the search results.  ...  So a tool called Visual Analytics Tool for Semantic Retrieval (VATSR) is proposed which allows user to visually interact and refine the query and/or search results.  ...  The main assignment of the boosting algorithm is to convert the weaker classifiers into a stronger one through learning.  ... 
doi:10.21172/1.72.548 fatcat:svzs5lbui5e2hblwp6fweptppm

Improving the search process through ontology‐based adaptive semantic search

Chyan Yang, Keng‐Chieh Yang, Hsu‐Chieh Yuan, Miguel‐Angel Sicilia
2007 Electronic library  
Originality/value -This paper shows how it is possible to improve the precision rate of items retrieved after a search and thus avoid information overload.  ...  Before a search term is processed by the search engine Lucene, the related words of the search term are selected from ontology structures to form new query phrases in the process of query expansion.  ...  Improving the search process Lucene supports all kinds of powerful search expressions including Boolean operators, field selection, wildcard, range, proximity, and boost.  ... 
doi:10.1108/02640470710741359 fatcat:u4bh2qelrbbz7p6uzexrsugqva

Query Operators Shown Beneficial for Improving Search Results [chapter]

Gilles Hubert, Guillaume Cabanac, Christian Sallaberry, Damien Palacio
2011 Lecture Notes in Computer Science  
Search engines allow users to retrieve documents with respect to a given query. These provide advanced search options, such as query operators (e.g., +term, term^10).  ...  Previous work studied how query operators are employed by end-users. In this paper, we study the extent to which using query operators may lead to improved results, regardless of specific users.  ...  We designed a methodology to validate H through the use of standard IR test collections, and the generation of query variants with operators.  ... 
doi:10.1007/978-3-642-24469-8_14 fatcat:u64o3wrx2raknnyzf6rxzg2uq4

Online Searching Behavior of Social Science Researchers' in IR Interfaces of E-journal Database Systems: A Study on JMI, JNU, and DU

Shailendra Kumar, Namrata Rai
2013 Journal of Information Science Theory and Practice  
The findings of the study reveal that most of the students were not using all the facilities offered in IR interfaces of e-journal database systems for their retrieval process and also encourages menu  ...  They found that the advanced search screens for the Web search engines did not directly support a full range of Boolean queries, including queries using both AND and OR.  ...  But from the study it is clearly shown that users prefer menu-based searching where they select search operators through pull-down menus.  ... 
doi:10.1633/jistap.2013.1.4.4 fatcat:y2xbaqtpinfcdpvtlilnksiu2y


Nilanjana Dev Nath, Shreekant Jha, Janki Meena M, Syedibrahim S.p
2017 Asian Journal of Pharmaceutical and Clinical Research  
Elasticsearch is a web search tool in view of Lucene. Apache Lucene is a free and open-source data retrieval programming library.  ...  Versatile Search gives a conveyed, multitenant-fit full-content web search tool with a HTTP web interface and pattern free JSON archives.  ...  Boost index and boost query Elastic search scoring algorithm is actually a combination of a Boolean model, VSM, and information retrieval model.  ... 
doi:10.22159/ajpcr.2017.v10s1.19757 fatcat:7375mfnsxja3flphzo34qff6ty

Community-based snippet-indexes for pseudo-anonymous personalization in web search

Oisín Boydell, Barry Smyth
2006 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '06  
This index is then used to re-rank the results returned by the underlying search engine by boosting the ranking of key results that have been frequently selected for similar queries by community members  ...  We describe and evaluate an approach to personalizing Web search that involves post-processing the results returned by some underlying search engine so that they reflect the interests of a community of  ...  At retrieval time, Lucene queries the snippet index for C using qT to produce RC , which is ranked using a function based on each result's TF-IDF score boosted by relative hits count and query similarity  ... 
doi:10.1145/1148170.1148283 dblp:conf/sigir/BoydellS06 fatcat:4j2z5xgisbakvprm2ad7wieqxa

Building a Structured Query Engine [article]

Amanpreet Singh, Karthik Venkatesan, Simranjyot Singh Gill
2017 arXiv   pre-print
We will show how we achieved real time indexing and retrieving of data through a RESTful API and how complex queries can be created and processed using efficient data structures we created for storing  ...  In this article, we built a structured query engine which supports searching data through structured queries on the lines of ElasticSearch.  ...  For a query clause without a boost value the TF value of the term is set to 1. For a query clause where boost value is provided we set the TF value equal to boost value.  ... 
arXiv:1710.00454v1 fatcat:sgljimtqjnbb3ok3epvhhpnbki

Resolving healthcare forum posts via similar thread retrieval

Jason H. D. Cho, Parikshit Sondhi, Chengxiang Zhai, Bruce R. Schatz
2014 Proceedings of the 5th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics - BCB '14  
Web communities such as healthcare web forums serve as popular platforms for users to get their complex medical queries resolved.  ...  In this paper we develop and evaluate a plethora of specialized search methods that treat an entire unresolved forum post as a query, and retrieve forum threads discussing similar problems to help resolve  ...  A typical session may consist of users browsing through the web to find answers, or posting medical questions on the web.  ... 
doi:10.1145/2649387.2649399 dblp:conf/bcb/ChoSZS14 fatcat:v2h6g2nh2ndxfil6dzjalsmdyu

Pre-trained Language Model for Web-scale Retrieval in Baidu Search [article]

Yiding Liu, Guan Huang, Jiaxiang Liu, Weixue Lu, Suqi Cheng, Yukun Li, Daiting Shi, Shuaiqiang Wang, Zhicong Cheng, Dawei Yin
2021 arXiv   pre-print
Retrieval is a crucial stage in web search that identifies a small set of query-relevant candidates from a billion-scale corpus.  ...  More importantly, we present a practical system workflow for deploying the model in web-scale retrieval.  ...  that the new system can increase user clicks with more relevant web documents. • Second, the results also indicate that both the ERNIE-based retrieval and post-retrieval filtering can boost the effectiveness  ... 
arXiv:2106.03373v4 fatcat:bkaz3q5dlrcr7nuxdrcrmgu3ti
« Previous Showing results 1 — 15 out of 13,952 results