Neural information retrieval: at the end of the early years     

Kezban Dilek Onal  Ye Zhang  Ismail Sengor Altingovde  Md Mustafizur Rahman  Pinar Karagoz  Alex Braylan  Brandon Dang  Heng-Lu Chang  Henna Kim  Quinten McNamara  Aaron Angert  Edward Banner  Vivek Khetan  Tyler McDonnell  An Thanh Nguyen  Dan Xu  Byron C. Wallace  Maarten de Rijke  Matthew Lease 《Information Retrieval》2018,21(2-3):111-182

A recent “third wave” of neural network (NN) approaches now delivers state-of-the-art performance in many machine learning tasks, spanning speech recognition, computer vision, and natural language processing. Because these modern NNs often comprise multiple interconnected layers, work in this area is often referred to as deep learning. Recent years have witnessed an explosive growth of research into NN-based approaches to information retrieval (IR). A significant body of work has now been created. In this paper, we survey the current landscape of Neural IR research, paying special attention to the use of learned distributed representations of textual units. We highlight the successes of neural IR thus far, catalog obstacles to its wider adoption, and suggest potentially promising directions for future research.  相似文献   

Talk Back with Yik Yak? Exploring User Engagement via Anonymous Social Media in an Academic Library     

Brandon Lewter  Steven Profit 《Journal of Web Librarianship》2018,12(2):107-120

This article presents results of a study of library-related posts on Yik Yak, a former social media app, and questions received via more traditional library-maintained virtual reference service platforms—namely, chat/instant messaging, SMS/text messaging, email, and LibAnswers' Query Spy—at College of Charleston's Addlestone Library. Based on an analysis of the results, suggestions are made for using social media tools similar to Yik Yak as a tool for interacting with patrons in academic library settings, specifically as a means to gather feedback about the library and to provide basic reference services.  相似文献   

School consultation (Part I): An interdisciplinary perspective on theory, models, and research     

J F West  L Idol 《Journal of learning disabilities》1987,20(7):388-408

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国有企业民营化改制的理论困境和实践约束     

祝志勇  吴垠  刘燕 《重庆职业技术学院学报》2005,14(1):1-5

国企民营化改制要顺利进行，必须摆脱一系列的理论和实践束缚，方能成功；同时，也必须充分认识到，民营化并不是解决国有企业问题的唯一途径。分析国企民营化改制可行性的目的在于籍此找出国有企业问题的症结．探索后续改革的合理预期。  相似文献   

Autonomy in school provision: Meanings and implications — review essay     

Edwin G. West 《Economics of Education Review》1992,11(4)

Using expanded evidence from the Administrator and Teacher Survey and the High School and Beyond data, the book Politics, Markets, and America's Schools, by Chubb and Moe (C&M), measures differential progress of students who remain in their chosen high schools. Of the variables positively associated with student achievement gain, school organization is clearly significant. C&M describe good school organization as inversely related to the size and dominance of bureaucracy and positively correlated with autonomy. In the absence of a precise definition by C&M this article explores the full meaning of autonomy and finds that when applying it to C&M's ultimate reform proposals, serious inconsistencies emerge. Thus, while they start with the finding that bureaucracy is “unambiguously bad” for school organization, in their last chapter the authors nevertheless recommend reforms in which the existing bureaucracy rather than autonomy is in central charge. In the same vein, their treatment of the voucher system and private schooling, which would clearly promote more autonomy, is decidedly and unexpectedly cool.  相似文献   

The District and Charter Sectors of American K–12 Education: Pros and Cons     

Chester E. Finn Jr.  Brandon L. Wright 《Journal of School Choice》2017,11(1):9-28

This article probes ways in which the school-choice marketplace as it developed via chartering has not worked as well in practice as many had hoped. It includes reflection on the profoundly different operating principles and theories of action that separate the district and charter sectors in their pure forms. It also offers market-strengthening suggestions that blend the 2 approaches, organizing them under 10 categories.  相似文献   

Validating curriculum development using text mining     

Jason West 《Curriculum Journal》2017,28(3):389-402

Interdisciplinarity requires the collaboration of two or more disciplines to combine their expertise to jointly develop and deliver learning and teaching outcomes appropriate for a subject area. Curricula and assessment mapping are critical components to foster and enhance interdisciplinary learning environments. Emerging careers in data science and machine learning coupled with the necessary graduate outcomes mandate the need for a truly interdisciplinary pedagogical approach. The challenges for emerging academic disciplines such as data science and machine learning center on the need for multiple fields to coherently develop university-level curricula. Using text mining, we empirically analyze the breadth and depth of existing tertiary-level curricula to quantify patterns in curricula through the use of surface and deep cluster analysis. This approach helps educators validate the breadth and depth of a proposed curriculum relative to the broad evolution of data science as a discipline.  相似文献   

THE IMPORTANCE OF MLA REGIONAL GROUPS.     

A N Brandon 《Bulletin of the Medical Library Association》1965,53(1):97-98

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A test of the Wagner-Rescorla model’s prediction of no response decrement in a nondifferential following a differential schedule of reinforcement     

S. E. Brandon 《Learning & behavior》1984,12(2):137-141

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Validity of SenseWear® Armband v5.2 and v2.2 for estimating energy expenditure     

Dharini M Bhammar  Brandon J Sawyer  Wesley J Tucker  Jung-Min Lee 《Journal of sports sciences》2016,34(19):1830-1838

We compared SenseWear Armband versions (v) 2.2 and 5.2 for estimating energy expenditure in healthy adults. Thirty-four adults (26 women), 30.1 ± 8.7 years old, performed two trials that included light-, moderate- and vigorous-intensity activities: (1) structured routine: seven activities performed for 8-min each, with 4-min of rest between activities; (2) semi-structured routine: 12 activities performed for 5-min each, with no rest between activities. Energy expenditure was measured by indirect calorimetry and predicted using SenseWear v2.2 and v5.2. Compared to indirect calorimetry (297.8 ± 54.2 kcal), the total energy expenditure was overestimated (P < 0.05) by both SenseWear v2.2 (355.6 ± 64.3 kcal) and v5.2 (342.6 ± 63.8 kcal) during the structured routine. During the semi-structured routine, the total energy expenditure for SenseWear v5.2 (275.2 ± 63.0 kcal) was not different than indirect calorimetry (262.8 ± 52.9 kcal), and both were lower (P < 0.05) than v2.2 (312.2 ± 74.5 kcal). The average mean absolute per cent error was lower for the SenseWear v5.2 than for v2.2 (P < 0.001). SenseWear v5.2 improved energy expenditure estimation for some activities (sweeping, loading/unloading boxes, walking), but produced larger errors for others (cycling, rowing). Although both algorithms overestimated energy expenditure as well as time spent in moderate-intensity physical activity (P < 0.05), v5.2 offered better estimates than v2.2.  相似文献