Search Query Formation by Strategic Consumers

Author(s):  
Jia Liu ◽  
Olivier Toubia
2019 ◽  
Vol 18 (2) ◽  
pp. 155-194
Author(s):  
Jia Liu ◽  
Olivier Toubia

2021 ◽  
Vol 49 (2) ◽  
pp. 191-196
Author(s):  
Chen Jin ◽  
Qian Liu ◽  
Chenguang (Allen) Wu

Author(s):  
Waleed M. Sweileh

Abstract Objective The current study aimed at investigating the contribution of researchers in the Arab region to the field of mental health and well-being of university students using bibliometric tools. Method Relevant literature was obtained from the Scopus database for the period from 2001–2020. Examples of keywords used in the query included “college student”, “university student”, and undergraduate student” combined with keywords such as wellbeing, wellness, suicide, and anxiety. No language restriction was used. Only research articles were considered. The search query was validated. Bibliometric indicators and mappings such as active countries, institutions, authors, highly cited documents, and the most frequently encountered topics were identified and discussed to shed light on research gaps in the Arab region. Research gaps were also identified. The analysis was carried out on February 12, 2021. Results The search query returned 309 research articles published by authors from 17 different Arab countries. Less than one-third (n = 97, 31.4%) of the retrieved articles were carried out in collaboration with authors from 39 non-Arab countries, mainly from the United Kingdom and the United States. The overall contribution of researchers from the Arab region to global research in the field was 5.6%. In total, 1212 authors from 791 different institutions participated in publishing the retrieved research articles. At the country level, Saudi Arabia (n = 125, 40.5%) ranked first, followed by Jordan, Egypt, and Lebanon. At the institutional level, The University of Jordan (n = 25, 8.1%) ranked first, followed by King Saud University, and Kuwait University. The retrieved articles included 132 (42.7%) articles on stress/distress, 95 (30.7%) on anxiety, 61 (19.7%) on depression. Knowledge gaps on suicide, eating disorders, substance use, and happiness were identified. The retrieved articles appeared in 193 different journals and approximately two-thirds of the active journal were in general medicine, public health, and education. Conclusions The contribution of researchers in the Arab region to the field showed a noticeable increase with time. However, important research gaps were identified. The contribution was confined to authors from a limited number of Arab countries. Funding and international research collaboration for the mental health and well-being of students need to be strengthened.


2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Waleed M. Sweileh

Abstract Background Antimicrobial resistance (AMR) is a global challenge that requires a “One Health” approach to achieve better public health outcomes for people, animals, and the environment. Numerous bibliometric studies were published on AMR in humans. However, none was published in food-producing animals. The current study aimed at assessing and analyzing scientific publications on AMR in food-producing animals. Method A validated search query was developed and entered in Scopus advanced search function to retrieve and quantitatively analyze relevant documents. Bibliometric indicators and mapping were presented. The study period was from 2000 to 2019. Results The search query retrieved 2852 documents. During the period from 2015 to 2019, approximately 48% of the retrieved documents were published. The article about the discovery of plasmid-mediated colistin resistance in pigs received the highest number of citations (n = 1970). The Journal of Food Protection (n = 123; 4.3%) ranked first in the number of publications while the Applied and Environmental Microbiology journal ranked first in the number of citations per document. The USA led with 576 (20.2%) documents followed by China (n = 375; 13.1%). When the number of publications was standardized by income and population size, India (n = 51.5) ranked first followed by China (n = 38.3) and Brazil (n = 13.4). The growth of publications from China exceeded that of the USA in the last 3 years of the study period. Research collaboration in this field was inadequate. Mapping author keywords showed that E. coli, Salmonella, poultry, Campylobacter, chicken, cattle, and resistant genes were most frequent. The retrieved documents existed in five research themes. The largest research theme was about AMR in Salmonella in food-producing animals. The most recent research theme was about the dissemination and molecular transfer of AMR genes into the environment and among different bacterial strains. Conclusion Hot spots of research on AMR in food-producing animals match the world regions of reported hot spots of AMR in animals. Research collaboration in this field is of great importance, especially with low- and middle-income countries. Data on AMR need to be collected nationally and internationally to implement the “One Health” approach in the fight against AMR.


2021 ◽  
pp. 1-11
Author(s):  
Zhinan Gou ◽  
Yan Li

With the development of the web 2.0 communities, information retrieval has been widely applied based on the collaborative tagging system. However, a user issues a query that is often a brief query with only one or two keywords, which leads to a series of problems like inaccurate query words, information overload and information disorientation. The query expansion addresses this issue by reformulating each search query with additional words. By analyzing the limitation of existing query expansion methods in folksonomy, this paper proposes a novel query expansion method, based on user profile and topic model, for search in folksonomy. In detail, topic model is constructed by variational antoencoder with Word2Vec firstly. Then, query expansion is conducted by user profile and topic model. Finally, the proposed method is evaluated by a real dataset. Evaluation results show that the proposed method outperforms the baseline methods.


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