Embedding based learning for collection selection in federated search

2020 ◽  
Vol 54 (5) ◽  
pp. 703-717
Author(s):  
Adamu Garba ◽  
Shah Khalid ◽  
Irfan Ullah ◽  
Shah Khusro ◽  
Diyawu Mumin

PurposeThere have been many challenges in crawling deep web by search engines due to their proprietary nature or dynamic content. Distributed Information Retrieval (DIR) tries to solve these problems by providing a unified searchable interface to these databases. Since a DIR must search across many databases, selecting a specific database to search against the user query is challenging. The challenge can be solved if the past queries of the users are considered in selecting collections to search in combination with word embedding techniques. Combining these would aid the best performing collection selection method to speed up retrieval performance of DIR solutions.Design/methodology/approachThe authors propose a collection selection model based on word embedding using Word2Vec approach that learns the similarity between the current and past queries. They used the cosine and transformed cosine similarity models in computing the similarities among queries. The experiment is conducted using three standard TREC testbeds created for federated search.FindingsThe results show significant improvements over the baseline models.Originality/valueAlthough the lexical matching models for collection selection using similarity based on past queries exist, to the best our knowledge, the proposed work is the first of its kind that uses word embedding for collection selection by learning from past queries.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Roma Madan-Soni

PurposeThe purpose of this article is to collectively work towards understanding and resolving the COVID-19 pandemic issues based on Messersmith's (2018) song, We All Do Better When We All Do Better. Furthermore, Our Identity should not Remain Marked to understand and overcome the workings of a virus whose Identity [DOES NOT] Remain Marked!Design/methodology/approachPractice-based creation coalesced with analytical writing.FindingsWe All Do Better When We All Do Better! The COVID-19 pandemic corresponds to crucial fundamental assumptions which have appeared from adversity anthropology over the past epochs. First, that environmental catastrophes infrequently surface, because calamities are communal and reliant on trans-species relationships. Furthermore, they appear from a blend of threat and susceptibility, with susceptibility as the causal issue. Second, the disaster occurs at manifold ranks concurrently, with responses to a threat; it endangers all the weak issues along with the original threat (Kelman, 2020).Research limitations/implicationsThroughout COVID-19 much of the media left cavernous time gaps, masks turned into tools of rebellion, and power and violence were exercised indirectly on the vulnerable. The virtual campuses of WhatsApp, Facebook and conventional broadcasting are disseminating specialist knowledge in pandemic science; now everyone is certified. They voice a nouveau-vindictive biopolitical language, so we rise towards COVID-19 denialism. And, we turn into unthinking puppets who speed up the transfer of misinformation that moves like an “asymptomatic” cough through an overcrowded bar or beach as all inhale-consume it.Practical implicationsPart of pandemic planning and dealing with the consequential calamity is to integrate instantly the disastrous aspects caused by lockdowns. In this surge of terror and apprehension, we cannot afford to isolate people, even more through shame and prejudice. Each one of us is accountable to support each other and advocate for an all-inclusive healthy community.Social implicationsUnescapably, as an immigrant, I had never dreaded this “home away from home” and stay anyhow, and I always had something to write home about. But recently I have had “Nothing to Write Home About,” (Madan-Soni, 2019). Migrant employees in most countries including international students were not much more than uninvited guests positioned in a conventional neighbourhood. It is as if your every expatriate-neighbour was plague-ridden and waiting to infect you. But the virus required no genomic or national identity or visa rank, it could cut all lines to get to you. The virus's Identity Is [Not] Marked.Originality/valueOur Identity Remains Marked (2020) is my probing visual description of how Our Identity Remains Marked, layered, and stratified in stone under authoritarian structures of patriarchy. I read and researched about how Our Identity Remains Marked when humans are othered through the colours of race, gender, national and immigrant status, including all Earth others. Crafting things, creating something engages with a developing field of ecofeminist research on visual and embodied approaches and creativity (VEM Network, n.d; Reynolds, 2021). Painting offered me a therapeutic way of thinking and of using my senses.


2020 ◽  
Vol 13 (2) ◽  
pp. 195-210 ◽  
Author(s):  
Avanish Singh Chauhan ◽  
Gaurav Kumar Badhotiya ◽  
Gunjan Soni ◽  
Prem Kumari

Purpose Because of the increased global competition and the need for environment consciousness, organisations have started focusing on incorporating sustainability dimensions into suppler selection criteria. In the past decade, sustainable supplier selection has received much attention from researchers as well as industry practitioners. The purpose of this paper is to identify various sustainable supplier selection criteria (SSSC) and underlying interdependencies among prominent selection criteria to develop a framework for sustainability dimensions. Design/methodology/approach The sustainable criteria for supplier selection were established through comprehensive literature review. An interpretive structural modelling (ISM) approach is used to investigate the interrelationships among these criteria. Findings A total of 21 SSSC under 3 dimensions (social, environmental and economic) are established. Ten criteria related to quality, capability, flexibility, waste management, pollution prevention, local community, employment practice, labour, etc. are exhibiting strong driving as well as dependence power, as demonstrated through ISM and matriced’ impacts croises-multiplication applique’ and classement (MICMAC) analysis. The findings show that delivery/service, eco design and rights of stakeholders are the “key” criteria having a high-driving and low-dependence power. These criteria require high attention from managers, while other criteria having low-driving and high-dependence power require secondary actions. Research limitations/implications The inter-relations for the development of ISM model and MICMAC analysis were obtained through the opinion of industry experts and academicians, which may tend to be subjectively biased. Further exploration is proposed to statistically validate the developed interdependency model. Practical implications This paper might act as a reference for the supplier development managers of organisations by providing an appraisal of various SSSC based on their interdependencies. Originality/value This study contributes to the knowledge base by proposing a framework of the interrelationships of the SSSC and also provides an additional perspective for managing these criteria based on ISM.


2018 ◽  
Vol 19 (2) ◽  
pp. 19-23
Author(s):  
Brian Rubin ◽  
Adam Pollet

Purpose The purpose of this paper is to analyze the Financial Industry Regulatory Authority’s (FINRA) 2017 disciplinary actions, the issues that resulted in the most significant fines and restitution and the emerging enforcement trends from 2017 and beyond. Design/methodology/approach The approach of this paper discusses the disciplinary actions in 2017 and prior years, details the top 2017 enforcement issues measured by total fines assessed, including anti-money laundering, trade reporting, electronic communications, books and records, research analysts and research reports, and explains current enforcement trends, including restitution, suitability cases and technological issues. Findings In 2017, restitution more than doubled from the prior year, resulting in the fourth highest total sanctions (fines combined with restitution and disgorgement) assessed by FINRA over the past 10 years. Practical implications Firms and their representatives should heed the trends in both the substantial restitution FINRA is ordering and the related enforcement issues in the cases FINRA has brought. Originality/value This paper provides expert analysis and guidance from experienced securities enforcement lawyers.


2020 ◽  
Vol 10 (1) ◽  
pp. 115-124
Author(s):  
Chunchun Wang

PurposeThe purpose of this paper is to examine the transformations of prosthetic practices in China, as well as the daily experiences and dilemmas arising from the everchanging practices since 1949. On the basis of materials, this paper explores an everyday perspective to review the history of technology.Design/methodology/approachEthnography was collected with the application of participant observations, informal interviews and in-depth interviews during a 13-months study at a rehabilitation center in Chengdu, China. The literature on prosthetic manufacturing was also reviewed for this paper.FindingsChina's prosthetic technology seems to evolve from traditional to modern. However, this progressive narrative – innovation-based timeline (Edgerton, 2006, xi) – has been challenged by daily practices. Due to institutional pressures, prosthetists are in a dilemma of selectively using their knowledge to create one kind of device for all prosthesis users with a certain kind of disability, thereby regulating the physical and social experiences of prosthesis users. Besides, prosthesis users are accustomed to prostheses made with old techniques, and must correct themselves from old experiences to the daily practices recognized by the selected techniques.Originality/valueThis paper provides a cross-cultural case to reexamine Edgerton's criticism of the progressive and orderly innovation-centric technological narrative. More importantly, it reviews the history and practices of China's prosthetics from daily experiences rather than Edgerton's concentration on technology; therefore, it provides an everyday perspective for future research on technological transformations.


Author(s):  
Aly Elgayar ◽  
Salwa Mamoun Beheiry ◽  
Alaa Jabbar ◽  
Hamad Al Ansari

Purpose Over the past decade, the United Arab Emirates (UAE) introduced several green regulatory guidelines, federal decrees, and a considerable number of environmentally friendly initiatives. Hence, the purpose of this paper is to investigate the top green materials and systems used currently in the UAE construction industry as per the new laws dictate as well as see if professionals are switching over to incorporate more green materials, systems, and/or designs. Design/methodology/approach The work involved reviewing internationally popular green materials and systems for construction, developing a questionnaire based on the literature review, surveying professionals in the seven UAE emirates, and ranking the findings based on the relative importance index. Findings Findings found the top used green materials and system in the UAE’s construction industry. As well as identified that there is a communication gap between the design and implementation phases that is possibly hindering the use of more green materials and systems. Originality/value This study sets a baseline to measure the UAE’s progress over the coming years in terms of integrating more green construction materials, systems, methodologies, and trends.


2014 ◽  
Vol 24 (6) ◽  
pp. 643-683 ◽  
Author(s):  
Marco Galvagno ◽  
Daniele Dalli

Purpose – The purpose of this paper is to summarize and classify extant research and to better understand the past, present, and future state of the theory of value co-creation. Its main objectives are: to identify the different theoretical perspectives and research streams that characterize and define the co-creation literature, and to highlight the connections between them; to look for emerging trends and gaps in the literature by comparing the most recent papers with those representing the field's core. Design/methodology/approach – The paper relies on bibliometric data: co-citation techniques were employed to select, analyze, and interpret citation patterns within the co-creation literature. Findings – The paper identified two main clusters, as well as specific research streams and common themes, representing scholarly journals’ publications on co-creation over the past years. These research streams and themes apply three different theoretical perspectives: service science, innovation and technology management, and marketing and consumer research. Data from the most recent publications has been used to verify if and how the original streams and themes are reflected in the contemporary debate. Research limitations/implications – Inevitably, the findings of the analysis have limitations related to the research design, the databases, and the applied bibliometric methods. Practical implications – From a practical perspective, the research impacts on theory building, management decision making, and teaching. Originality/value – This study depicts the remarkable development of the literature on co-creation and shows the latent structure underlying its different research streams. To the best knowledge, this study is the first to determine co-citation frequencies from both the SSCI and Scopus databases.


Author(s):  
Silvia Gherardi

Purpose – The purpose of this paper is to contribute to the ten years of the journal through a personal reflection. Design/methodology/approach – A review of the articles published in the last ten years. Findings – I argue that what has distinguished QROM in these ten years are two distinctive features: reflexivity on practices of qualitative research, and openness to the application of qualitative methods to unusual research topics. Originality/value – The main limit of the paper resides in the subjectivity of the person who has read the articles. Other readers may have different opinions and may have chosen different criteria.


2017 ◽  
Vol 36 (4) ◽  
pp. 143-154 ◽  
Author(s):  
Ramesh Pandita ◽  
Meenakshi Koul ◽  
Shivendra Singh

Purpose The purpose of this study is to reflect a growing trend toward the introduction of new research journals in India. The study focuses on the number of journals introduced in India during the past decade, namely, for the period 2005-2014. Some of the key aspects analyzed include year-wise distribution of journals introduced, cumulative and annual corresponding growth of newly introduced journals, publishing form of journals, namely, online, print and hybrid. Some other aspects studied include distribution of journals on the basis of language, periodicity, state, etc. for both online and print journals. Design/methodology/approach To undertake the present study, data were retrieved from the official website of the National Science Library, New Delhi, and the analysis is based on the number of ISSN numbers issued by the National Science Library New Delhi during the period of study. Findings A total of 15,631 research journals were introduced in India from 2005 through 2014. Compared to 4,954 (31.69 per cent) online journals, 10,614 (67.90 per cent) print journals were introduced in India during the past decade, depicting print as the larger medium of journal publishing in India. During the period of study, research journals in India grew annually at 31.44 per cent. New Delhi, Maharashtra and Uttar Pradesh emerged as the three leading research journal publishing states of the country, while 82.86 per cent journals are published in English language and a maximum 32.52 per cent journals are published on a quarterly basis. Originality/value The study is first of its kind undertaken in India.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Stephen Gray ◽  
Jason Hall ◽  
Grant Pollard ◽  
Damien Cannavan

Purpose In the context of public-private partnerships (PPPs), it has been argued that the standard valuation framework produces a paradox whereby government appears to be made better off by taking on more systematic risk. This has led to a range of approaches being applied in practice, none of which are consistent with the standard valuation approach. The purpose of this paper is to demonstrate that these approaches are flawed and unnecessary. Design/methodology/approach The authors step through the proposed alternative valuation approaches and demonstrate their inconsistencies and illogical outcomes, using theory, logic and mathematical proof. Findings In this paper, the authors demonstrate that the proposed (alternative) approaches suffer from internal inconsistencies and produce illogical outcomes in some cases. The authors also show that there is no problem with the current accepted theory and that the apparent paradox is not the result of a deficiency in the current theory but is rather caused by its misapplication in practice. In particular, the authors show that the systematic risk of cash flows is frequently mis-estimated, and the correction of this error solves the apparent paradox. Practical implications Over the past 20 years, PPP activity around the globe amounts to many billions of dollars. Decisions on major infrastructure funding are of enormous social and economic importance. Originality/value To the best of the authors’ knowledge, this study is the first to demonstrate the flaws and internal inconsistencies with proposed valuation framework alternatives for the purposes of evaluating PPPs.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sanghee Kim ◽  
Hongjoo Woo

Purpose According to the perspective of evolutionary economic theory, the marketplace continuously evolves over time, following the changing needs of both customers and firms. In accordance with the theory, the second-hand apparel market has been rapidly expanding by meeting consumers’ diverse preferences and promoting sustainability since 2014. To understand what changes in consumers’ consumption behaviors regarding used apparel have driven this growth, the purpose of this study is to examine how the second-hand apparel market product types, distribution channels and consumers’ motives have changed over the past five years. Design/methodology/approach This study collected big data from Google through Textom software by extracting all Web-exposed text in 2014, and again in 2019, that contained the keyword “second-hand apparel,” and used the Node XL program to visualize the network patterns of these words through the semantic network analysis. Findings The results indicate that the second-hand apparel market has evolved with various changes over the past five years in terms of consumer motives, product types and distribution channels. Originality/value This study provides a comprehensive understanding of the changing demands of consumers toward used apparel over the past five years, providing insights for retailers as well as future research in this subject area.


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