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81.
Mengwen?Liu Yi?FangEmail author Alexander?G.?Choulos Dae?Hoon?Park Xiaohua?Hu 《Information Retrieval》2017,20(6):575-605
Product reviews have become an important resource for customers before they make purchase decisions. However, the abundance of reviews makes it difficult for customers to digest them and make informed choices. In our study, we aim to help customers who want to quickly capture the main idea of a lengthy product review before they read the details. In contrast with existing work on review analysis and document summarization, we aim to retrieve a set of real-world user questions to summarize a review. In this way, users would know what questions a given review can address and they may further read the review only if they have similar questions about the product. Specifically, we design a two-stage approach which consists of question selection and question diversification. For question selection phase, we first employ probabilistic retrieval models to locate candidate questions that are relevant to a given review. A Recurrent Neural Network Encoder–Decoder is utilized to measure the “answerability” of questions to a review. We then design a set function to re-rank the questions with the goal of rewarding diversity in the final question set. The set function satisfies submodularity and monotonicity, which results in an efficient greedy algorithm of submodular optimization. Evaluation on product reviews from two categories shows that the proposed approach is effective for discovering meaningful questions that are representative of individual reviews. 相似文献
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In this paper we address the possibility of utilizing a deductive database solution to assist a furniture company to solve its delivery scheduling problems. We first present the company's current approach to scheduling furniture deliveries using their present computing facilities. Then, we discuss their search for an off-the-self solution, resulting in the proposed solution employing the capabilities of a deductive database application. An evaluation of the current state of commercially available deductive database is conducted and presented to assess the possibilities and availability of the technology to focus on an alternative for the furniture company. 相似文献
84.
Most studies of parent–child bookreading have focused on mothers reading to their children. Though the role of fathers in children's lives is widely emphasized, we know almost nothing about father–child bookreading, particularly among low-income families. The present study was designed to examine how often low-income fathers report reading to their children and what the predictors and effects of paternal bookreading are. The fathers in this study were participants in the national evaluation of Early Head Start (EHS) and were recruited via mothers enrolled in the EHS study. Participating fathers were interviewed at home and their children's cognitive and language development were assessed using standardized measures from ages 2 to 5. Results demonstrated a wide variety in frequency of bookreading among fathers. Fathers were more likely to read to their children frequently if they spoke English at home, if they had a high school education, and if their children had better language skills. Fathers’ bookreading predicted children's cognitive outcome. Paternal bookreading did predict children's language outcomes but only for children whose fathers had at least a high school education. 相似文献
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Michelle Dalton Alexander Kouker Martin O'Connor 《New Review of Academic Librarianship》2016,22(2-3):148-159
ABSTRACTBlogging has been associated with the Library and Information Science (LIS) community for some time now. Libfocus.com is an online blog that was founded in 2011. Its goal was to create a communal communication space for LIS professionals in Ireland and beyond, to share and discuss issues and ideas. The content of the blog is curated by an editorial team and features guest bloggers from across all sectors and experience levels. Using a qualitative methodological approach, open-ended surveys were conducted with twelve previous guest bloggers, in order to explore how and why Irish-based LIS professionals choose to communicate through blogging. It is hoped that this evidence will provide a greater understanding of both the value and effectiveness of blogging as an outreach and communication tool within the profession, helping both libraries and librarians to be more strategic in their use of it as a medium. 相似文献
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Alexander L. Darling Martin D. England Daniel W. Lang Rosanne Lopers-Sweetman 《Higher Education》1989,18(5):559-583
Formulas are used in many jurisdictions to allocate public funds among universities which may then have considerable autonomy in the internal allocation of those funds. This paper provides first an overview of formula funding as it affects university education. This is followed by an exposition on the balance between autonomy and accountability in the Province of Ontario. Formula funding in Ontario is used as a case study to evaluate how effective formula-funding has been in encouraging autonomous universities to work towards the attainment of public policy objectives. The analysis shows that four mechanisms have in fact been used - namely formula funding, designated extraformula grants, incentive funding, and controls - and that some objectives are better supported by different mechanisms. The paper concludes with a discussion of the evolution and an evaluation of formula funding in Ontario against the objectives given for its introduction. 相似文献
90.
Alexander Karp 《Journal of Mathematics Teacher Education》2007,10(4-6):405-414
This article discusses certain aspects of mathematics teacher education in Russia. To be able successfully to teach through problems, a teacher must know how to select the necessary assignments, to construct mathematical tasks according to methodological principles, and to organize work on these assignments in the classroom; in short, as they say in Russia, the teacher must possess certain well-defined methodological skills. This article analyzes examples of work with pre-service and in-service teachers leading to the formation of such skills. As the author tries to show, substantive and deep mathematical activity can take place in the context of tidying even the most routine school-level topics, such as the quadratic trinomial. 相似文献