Three approaches to measuring recall on the Web: a systematic review

2020 ◽  
Vol 38 (3) ◽  
pp. 477-492
Author(s):  
Mahdi Zeynali Tazehkandi ◽  
Mohsen Nowkarizi

Purpose The purpose of this paper is to present a review on the use of the recall metric for evaluating information retrieval systems, especially search engines. Design/methodology/approach This paper investigates different researchers’ views about recall metrics. Findings Five different definitions for recall were identified. For the first group, recall refers to completeness, but it does not specify where all the relevant documents are located. For the second group, recall refers to retrieving all the relevant documents from the collection. However, it seems that the term “collection” is ambiguous. For the third group (first approach), collection means the index of search engines and, for the fourth group (second approach), collection refers to the Web. For the fifth group (third approach), ranking of the retrieved documents should also be accounted for in calculating recall. Practical implications It can be said that in the first, second and third approaches, the components of the retrieval algorithm, the retrieval algorithm and crawler, and the retrieval algorithm and crawler and ranker, respectively, are evaluated. To determine the effectiveness of search engines for the use of users, it is better to use the third approach in recall measurement. Originality/value The value of this paper is to collect, identify and analyse literature that is used in recall. In addition, different views of researchers about recall are identified.

2014 ◽  
Vol 30 (4) ◽  
pp. 15-17 ◽  

Purpose – This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach – This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings – Becoming increasingly reliant on the web as a principal source of finding information is altering our brains and the way that we obtain and hold knowledge. We are becoming less reliant on our memories to hold knowledge, instead using technology – and search engines like Google in particular – to deposit and retrieve information. Practical implications – The paper provides strategic insights and practical thinking that have influenced some of the world's leading organizations. Social implications – The paper provides strategic insights and practical thinking that can have a broader social impact. Originality/value – The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.


2014 ◽  
Vol 31 (4) ◽  
pp. 10-13 ◽  
Author(s):  
Sharon Q. Yang

Purpose – This study aims to ascertain the trends and changes of how academic libraries market and deliver information literacy (IL) on the web. Design/methodology/approach – The author compares the findings from two separate studies that scanned the Web sites for IL-related activities in 2009 and 2012, respectively. Findings – Academic libraries intensified their efforts to promote and deliver IL on the web between 2009 and 2012. There was a significant increase in IL-related activities on the web in the three-year period. Practical implications – The findings describe the status quo and changes in IL-related activities on the libraries’ Web sites. This information may help librarians to know what they have been doing and if there is space for improvement. Originality/value – This is the only study that spans three years in measuring the progress librarians made in marketing and delivering IL on the Web.


Kybernetes ◽  
2018 ◽  
Vol 47 (5) ◽  
pp. 854-872 ◽  
Author(s):  
Kaiying Cao ◽  
Qiushi Bo ◽  
Yi He

Purpose This paper aims to study whether the recycling of a third party competes with the trade-in service of a manufacturer, and explores the optimal trade-in and third-party collection authorization strategies for the manufacturer. Design/methodology/approach According to whether to authorize a third party to collect its used products, the manufacturer has two choices: one is not authorization (NA); the other is authorization (A). This paper uses profit-maximization model to investigate the optimal decisions of the manufacturer and the third party under NA and A, respectively, and then explores which choice is better for the manufacturer. Findings It is observed that there is a competition between trade-in service and third-party recycling when the durability parameter of the used product is relatively small. Moreover, when the durability parameter of the used product is relatively large, A is always better choice for the manufacturer; otherwise, NA is a better choice except for the case that the unit trade-in subsidy is low and the salvage of the used product is high. Practical implications These results provide managerial insights for the manufacturer and the third party to make decisions in the field of recycling. Originality/value This paper is among the first papers to study the competition between trade-in program and third party’s collecting program under government’s trade-in subsidy policy. Moreover, this paper presents the conditions under which the manufacturer should authorize or not authorize the third party to collect its used products.


Author(s):  
Max Chevalier ◽  
Christine Julien ◽  
Chantal Soulé-Dupuy

Searching information can be realized thanks to specific tools called Information Retrieval Systems IRS (also called “search engines”). To provide more accurate results to users, most of such systems offer personalization features. To do this, each system models a user in order to adapt search results that will be displayed. In a multi-application context (e.g., when using several search engines for a unique query), personalization techniques can be considered as limited because the user model (also called profile) is incomplete since it does not exploit actions/queries coming from other search engines. So, sharing user models between several search engines is a challenge in order to provide more efficient personalization techniques. A semantic architecture for user profile interoperability is proposed to reach this goal. This architecture is also important because it can be used in many other contexts to share various resources models, for instance a document model, between applications. It is also ensuring the possibility for every system to keep its own representation of each resource while providing a solution to easily share it.


2015 ◽  
Vol 31 (1) ◽  
pp. 12-14 ◽  

Purpose – This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach – This briefing is prepared by an independent writer who adds impartial comments and places the article in context. Findings – Sponsored search accounts for around half of the current market which is dominated by major players Google, Yahoo and Bing. This process refers to advertisements chosen for each page and secured by companies that succeed in a bidding contest. Firms pay the search engines when users click on the sponsored links within their advertisement. When it comes to effective ways of attracting customers, sponsored search is up with the best of them. Not surprisingly, competition in the environment is becoming ever tougher. It is thus vital that businesses find ways to enhance the performance of their ads. Practical implications – The paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations. Originality/value – The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.


2016 ◽  
Vol 34 (2) ◽  
pp. 197-206 ◽  
Author(s):  
Sungin Lee ◽  
Wonhong Jang ◽  
Eunsol Lee ◽  
Sam G. Oh

Purpose – The purpose of this paper is to examine the effect of, and identify core techniques of, search engine optimization (SEO) techniques applied to the web (http://lg-sl.net) and mobile (http//m.lg-sl.net) Science Land content and services at LG Sangnam Library in Korea. Design/methodology/approach – In accordance with three major SEO guidelines, ten SEO techniques were identified and applied, and their implications were extracted on three areas: improved search engine accessibility, increased relevance between site content and search engine keywords, and improved site credibility. The effects were quantitatively analyzed in terms of registered search engine keywords and influx of visits via search engines. Findings – This study shows that SEO techniques help increase the exposure of the library services and the number of visitors through search engines. Practical implications – SEO techniques have been applied to a few non-Korean information service organizations, but it is not a well-accepted practice in Korean libraries. And the dominant search engines in Korea have published their own SEO guidelines. Prior to this study, no significant endeavors have been undertaken in the context of Korean library services that have adopted SEO techniques to boost exposure of library services and increase user traffics. Originality/value – This is the first published study that has applied optimized SEO techniques to Korean web and mobile library services, in order to demonstrate the usefulness of the techniques for maximized exposure of library content.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Muhammed Bilgehan Aytaç

PurposeThis study explores why consumers view ambush marketing as an ethical marketing approach.Design/methodology/approachA qualitative study was devised to investigate what ambush marketing means to those consumers who find it ethical or are not annoyed by it. Data were collected via focus groups.FindingsThree main themes emerged from the data analyses. The most dominant theme was Machiavellianism. Favorable evaluations of ambush marketing lean on a Machiavellistic understanding. The second was the Robin Hood effect, which is observed when the ambusher is a smaller or local brand. In the third theme, ambush attacks are considered as charismatic or enjoyable action, in what is termed dark charisma.Practical implicationsFindings of the current study suggest considerable implications both for businesses that deal with sponsorship and for organizing committees.Originality/valueThe extant literature on consumers' attitudes toward ambush marketing mostly focuses on ethical issues and/or the effectiveness of ambush marketing (i.e. harm to official sponsors), using qualitative techniques. However, the literature is devoid of studies exploring consumers' perception on ambush marketing, and more specifically, explanations of what is ethical and unethical from consumers' point of view. To best of the author's knowledge, it is the first study that seeks an explanation about consumers' positive evaluation of ambush marketing.


2019 ◽  
Vol 40 (5) ◽  
pp. 54-58
Author(s):  
Peter Buell Hirsch

Purpose The purpose of this paper is to examine the impact of the splintering of the global internet into sovereign, government-controlled islands on the communications strategies and tactics of global corporations. Design/methodology/approach The approach taken was to review the various ways in which powerful authoritarian regimes such as Russia and China are controlling the Web to dissect the ways in which this could impact corporations. Findings The author believes that unless governments, civil entities and corporations collaborate to develop common standards for free speech and privacy, the Web as we know it today will cease to exist. Research limitations/implications The research is based on selected books and articles reviewed by the author and is not comprehensive. Practical implications Corporations will need to examine the impact of these developments on their own communications needs and strategies to develop the collaborations proposed. Social implications Without a universal global internet, the ability of citizens across the world to exchange ideas and develop strategies to tackle global problems will be severely curtailed. Originality/value The author does not believe that the splintering of the internet has been considered from the perspective of the global corporation.


2018 ◽  
Vol 42 (6) ◽  
pp. 734-751 ◽  
Author(s):  
Patrick O’Brien ◽  
Scott W.H. Young ◽  
Kenning Arlitsch ◽  
Karl Benedict

Purpose The purpose of this paper is to examine the extent to which HTTPS encryption and Google Analytics services have been implemented on academic library websites, and discuss the privacy implications of free services that introduce web tracking of users. Design/methodology/approach The home pages of 279 academic libraries were analyzed for the presence of HTTPS, Google Analytics services and privacy-protection features. Findings Results indicate that HTTPS implementation on library websites is not widespread, and many libraries continue to offer non-secured connections without an automatically enforced redirect to a secure connection. Furthermore, a large majority of library websites included in the study have implemented Google Analytics and/or Google Tag Manager, yet only very few connect securely to Google via HTTPS or have implemented Google Analytics IP anonymization. Practical implications Librarians are encouraged to increase awareness of this issue and take concerted and coherent action across five interrelated areas: implementing secure web protocols (HTTPS), user education, privacy policies, informed consent and risk/benefit analyses. Originality/value Third-party tracking of users is prevalent across the web, and yet few studies demonstrate its extent and consequences for academic library websites.


2016 ◽  
Vol 72 (1) ◽  
pp. 5-23 ◽  
Author(s):  
Ayse Göker ◽  
Richard Butterworth ◽  
Andrew MacFarlane ◽  
Tanya S Ahmed ◽  
Simone Stumpf

Purpose – Searching for appropriate images as part of a work task is a non-trivial problem. Journalists and copywriters need to find images that are not only visually appropriate to accompany the documents they are creating, but are acceptably priced and licensed. The paper aims to discuss these issues. Design/methodology/approach – A work-based study methodology and grounded theory are used to collect qualitative data from a variety of creative professionals including journalists. Findings – The authors report the findings of a study to investigate image search, retrieval and use by creative professionals who routinely use images as part of their work in an online environment. The authors describe the commercial constraints that have an impact on the image users’ behaviour that are not reported in other more academic and lab-based studies of image use (Westman, 2009). Practical implications – The authors show that the commercial image retrieval systems are based on document retrieval systems, and that this is not the most appropriate approach in the journalism domain. Originality/value – The authors describe the properties of an “information expedition”; the image seeking behaviour exhibited by journalists in an online environment, and contend that it is significantly different to existing image seeking models which represent other user types.


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