TAILIEUCHUNG - Báo cáo khoa học: "Automatically Predicting Peer-Review Helpfulness"

Identifying peer-review helpfulness is an important task for improving the quality of feedback that students receive from their peers. As a first step towards enhancing existing peerreview systems with new functionality based on helpfulness detection, we examine whether standard product review analysis techniques also apply to our new context of peer reviews. In addition, we investigate the utility of incorporating additional specialized features tailored to peer review. | Automatically Predicting Peer-Review Helpfulness Wenting Xiong University of Pittsburgh Department of Computer Science Pittsburgh PA 15260 wex12@ Diane Litman University of Pittsburgh Department of Computer Science Learning Research and Development Center Pittsburgh PA 15260 litman@ Abstract Identifying peer-review helpfulness is an important task for improving the quality of feedback that students receive from their peers. As a first step towards enhancing existing peerreview systems with new functionality based on helpfulness detection we examine whether standard product review analysis techniques also apply to our new context of peer reviews. In addition we investigate the utility of incorporating additional specialized features tailored to peer review. Our preliminary results show that the structural features review unigrams and meta-data combined are useful in modeling the helpfulness of both peer reviews and product reviews while peer-review specific auxiliary features can further improve helpfulness prediction. 1 Introduction Peer reviewing of student writing has been widely used in various academic fields. While existing web-based peer-review systems largely save instructors effort in setting up peer-review assignments and managing document assignment there still remains the problem that the quality of peer reviews is often poor Nelson and Schunn 2009 . Thus to enhance the effectiveness of existing peer-review systems we propose to automatically predict the helpfulness of peer reviews. In this paper we examine prior techniques that have been used to successfully rank helpfulness for product reviews and adapt them to the peer-review domain. In particular we use an SVM regression algorithm to predict the helpfulness of peer reviews 502 based on generic linguistic features automatically mined from peer reviews and students papers plus specialized features based on existing knowledge about peer reviews. We not only demonstrate that prior .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.