本文選題：社交網(wǎng)絡(luò) + 協(xié)同過(guò)濾�。� 參考：《現(xiàn)代教育技術(shù)》2016年02期

【摘要】：傳統(tǒng)的協(xié)同過(guò)濾推薦算法存在冷啟動(dòng)和數(shù)據(jù)稀疏的問(wèn)題,使得新學(xué)習(xí)者因歷史學(xué)習(xí)行為記錄稀疏或缺失而無(wú)法獲得較準(zhǔn)確的個(gè)性化學(xué)習(xí)資源推薦。鑒于此,文章提出將學(xué)習(xí)者社交網(wǎng)絡(luò)信息與傳統(tǒng)協(xié)同過(guò)濾相融合的方法,計(jì)算新學(xué)習(xí)者與好友之間的信任度,借助新學(xué)習(xí)者好友對(duì)學(xué)習(xí)資源的評(píng)分?jǐn)?shù)據(jù),來(lái)預(yù)測(cè)新學(xué)習(xí)者對(duì)學(xué)習(xí)資源的評(píng)分值,以填補(bǔ)新學(xué)習(xí)者在學(xué)習(xí)者—學(xué)習(xí)資源評(píng)分矩陣中的缺失,實(shí)現(xiàn)對(duì)新學(xué)習(xí)者的個(gè)性化學(xué)習(xí)資源推薦。實(shí)證研究結(jié)果表明,該方法在一定程度上能夠解決傳統(tǒng)協(xié)同過(guò)濾方法的冷啟動(dòng)和數(shù)據(jù)稀疏問(wèn)題,提高個(gè)性化學(xué)習(xí)資源推薦的準(zhǔn)確率。
[Abstract]:The problems of cold start and sparse data in the traditional collaborative filtering recommendation algorithm make it impossible for new learners to obtain more accurate personalized learning resources recommendation due to sparse or missing history learning behavior records. In view of this, this paper proposes a method that combines the information of learners' social networks with traditional collaborative filtering, calculates the trust between new learners and their friends, and makes use of the new learners' friends' scoring data for learning resources. To predict the new learners' scores on learning resources, to fill the gaps in the Learner-Learner Resource scoring Matrix, and to realize the personalized learning resources recommendation for the new learners. The empirical results show that this method can solve the cold start and data sparse problems of traditional collaborative filtering methods to some extent and improve the accuracy of personalized learning resources recommendation.
【作者單位】： 湖北大學(xué)教育學(xué)院;
【基金】：教育部人文社會(huì)科學(xué)研究青年基金項(xiàng)目“基于互動(dòng)電視的課堂教學(xué)模式與策略研究”(項(xiàng)目編號(hào):14YJC880109)階段性研究成果
【分類號(hào)】：G434
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本文編號(hào)：2047796