Product review summarization through question retrieval and diversification     

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   

韩国互联网发展历史     

Kilnam Chon  Hyunje Park  Kyungran Kang  Youngeum Lee  洪丹 《中国教育网络》2008,(9):26-28

20世纪60年代是因特网技术和概念的诞生期,韩国在1965年首次提出了“分组交换”这项互联网基础技术。  相似文献   

襄樊市旅游资源调查报告     

襄樊职业技术学院经济管理学院旅游资源调查组  张菊芳  郭苹苹  雷珍珍  何禅  张豆豆 《襄樊职业技术学院学报》2008,7(6):36-38

通过问卷调查得出襄樊市旅游资源丰富,发展旅游业基础好的结论。同时,各景区开发规划各自为政,资源整合不够好,产业群没有形成,供给结构不合理,宣传不够。建议完善以古隆中为龙头的三国文化旅游线,与河南联盟打造三国文化旅游产品——追溯诸葛孔明,实行一票通,实现两地资源共享;加强对襄樊市旅游业的宣传;充分发挥政府宏观调控作用,整合好各项旅游资源及相关产业。  相似文献   

Finding Common Ground: A Synthesis of Science and Mathematics Teacher Educators’ Experiences with Professional Growth     

Park Rogers  Meredith  Berry  Amanda  Krainer  Konrad  Even  Ruhama 《International Journal of Science and Mathematics Education》2021,19(1):167-180

The seven articles that comprise this Special Issue examine the professional growth of mathematics and science teacher educators across different contexts and different foci of who is the teacher educator being studied. Despite these differences, a common thread running throughout these seven articles is the need for learning to be situated in collaboration with others. In this final article, we examine the contribution of these articles through two perspectives: that of the collaborative contexts supporting the professional growth of mathematics and science teacher educators, and the role of disciplinary knowledge as part of the purpose for teacher educators’ professional growth. We notice that collaboration can take on very different structures in supporting teacher educators’ professional learning due to the different purposes and roles of the teacher educators in the studies. We also notice that while collaboration figures as an important component in all of the studies, the disciplinary specific aspects of collaboration, i.e., how collaboration might be negotiated differently by teacher educators in mathematics and science, is still not well understood. Overall, these articles provide important insights that help to shed new light on the complex and multifaceted nature of teacher educators’ learning and growth and provide productive avenues for future research.

  相似文献   

Examining barriers in technology-enhanced problem-based learning: Using a performance support systems approach     

Sung Hee Park  Peggy A. Ertmer 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(4):631-643

This study focused on the barriers that middle school teachers faced when implementing technology-enhanced problem-based learning (PBL) in their classrooms. Using a human performance-based model, we interviewed teachers, administrators, university faculty and technical support staff to determine the perceived importance of multiple barriers to the implementation of technology-enhanced PBL. Twenty-one teachers, two school administrators and a project manager, two faculty members, and two technical support staff participated in the study. Interview data were supported by surveys, classroom observations and researchers' reflective journals. Results suggested that lack of a clear, shared vision was the primary barrier. Additional barriers included lack of knowledge and skills, unclear expectations and insufficient feedback. Recommendations to support teachers' efforts to integrate technology-enhanced problem-based learning are presented.  相似文献   

A study of the strategies of peer tutoring in computer literacy education     

Sun-Hee Park  Hyeon-Ae Sim  Hye-Lan Roh 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(5):933-934

  相似文献   

Revisiting the Conceptualisation of Pedagogical Content Knowledge (PCK): PCK as a Conceptual Tool to Understand Teachers as Professionals   总被引：2，自引：0，他引：2  

Soonhye Park  J. Steve Oliver 《Research in Science Education》2008,38(3):261-284

  相似文献   

Phonological awareness and morphological awareness: differential associations to regular and irregular word recognition in early Korean Hangul readers     

Jeung-Ryeul Cho  Catherine McBride-Chang  Soon-Gil Park 《Reading and writing》2008,21(3):255-274

A large battery of reading related skills were orally administered to 111 4-year old and 118 5-year old Korean kindergartners, who were also tested on reading of regular and irregular Korean Hangul words. In regression equations, speeded naming was uniquely associated with reading of both regular and irregular words. In contrast, only the three measures of phonological awareness at the levels of phoneme onset, coda, and syllable uniquely explained Hangul regular word recognition, whereas only morphological awareness consistently explained irregular word recognition. Results suggest somewhat different cognitive demands for reading of regular and irregular words, based on the dual-route model, in Korean Hangul.  相似文献   

When Modern Physics Meets Nature of Science     

Park  Wonyong  Yang  Seungran  Song  Jinwoong 《Science & Education》2019,28(9-10):1055-1083

Science & Education - The social reaction to the recent detection of the Higgs boson and gravitational waves provided evidence that public interest in modern physics has reached a high point....  相似文献   

App-Based Manipulatives and Explicit Instruction to Support Division with Remainders     

Emily C. Bouck  Jiyoon Park  Kennedy Levy  Katie Cwiakala  Abbey Whorley 《Exceptionality》2020,28(1):45-59

ABSTRACT

In theory, both virtual manipulatives and explicit instruction are viable options to support students with disabilities as they learn mathematics. This study explored the effect of a treatment package—an app-based virtual manipulative (Cuisenaire® Rods) in conjunction with explicit instruction—on students’ acquisition and generalization of solving problems involving division of whole numbers with remainders. Three middle school students with disabilities participated in this multiple baseline, multiple probe across participants single case design study. Each of the students acquired the mathematical behavior of being able to solve division with remainders problems. In other words, a functional relation existed between the intervention package of explicit instruction and the Cuisenaire® Rods app-based manipulative and students’ accuracy in solving division with remainders problems. Yet, two students failed to generalize the skill without the explicit instruction and use of the app-based manipulative.  相似文献