Search: onr:"swepub:oai:DiVA.org:ri-41877" >
Diversifying custom...
Abstract
Subject headings
Close
- E-commerce Web sites owe much of their popularity to consumer reviews accompanying product descriptions. On-line customers spend hours and hours going through heaps of textual reviews to decide which products to buy. At the same time, each popular product has thousands of user-generated reviews, making it impossible for a buyer to read everything. Current approaches to display reviews to users or recommend an individual review for a product are based on the recency or helpfulness of each review.In this paper, we present a framework to rank product reviews by optimizing the coverage of the ranking with respect to sentiment or aspects, or by summarizing all reviews with the top-K reviews in the ranking. To accomplish this, we make use of the assigned star rating for a product as an indicator for a review's sentiment polarity and compare bag-of-words (language model) with topic models (latent Dirichlet allocation) as a mean to represent aspects. Our evaluation on manually annotated review data from a commercial review Web site demonstrates the effectiveness of our approach, outperforming plain recency ranking by 30% and obtaining best results by combining language and topic model representations.
Keyword
- Diversification
- Ranking
- Review recommendation
- Summarization
- Topic models
- Computational linguistics
- Information retrieval
- Social networking (online)
- Statistics
- Websites
- Review recommendations
- Topic model
- Sales
- algorithm
- Article
- computer program
- conceptual framework
- consumer attitude
- customer review
- information model
- information processing
- language model
- latent Dirichlet allocation
- priority journal
- sentiment focused ranking
- summary focused ranking
- web site
- commercial phenomena
- economic model
- economics
- human
- Internet
- postmarketing surveillance
- Commerce
- Humans
- Models
- Economic
- Product Surveillance
- Postmarketing
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database