دانلود مقاله ISI انگلیسی شماره 43469
عنوان فارسی مقاله

تجسم ساختار بازار از طریق بررسی آنلاین محصول: ادغام مدل سازی موضوع، تاپسیس، و روش های پوسته پوسته شدن چند بعدی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
43469 2015 17 صفحه PDF سفارش دهید 11230 کلمه
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Visualizing market structure through online product reviews: Integrate topic modeling, TOPSIS, and multi-dimensional scaling approaches
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Electronic Commerce Research and Applications, Volume 14, Issue 1, January–February 2015, Pages 58–74

کلمات کلیدی
ساختار بازار - استخراج متن - مدل سازی موضوع - رتبه بندی از محصولات - تاپسیس
پیش نمایش مقاله
پیش نمایش مقاله تجسم ساختار بازار از طریق بررسی آنلاین محصول: ادغام مدل سازی موضوع، تاپسیس، و روش های پوسته پوسته شدن چند بعدی

چکیده انگلیسی

Studies have shown that perceptual maps derived from online consumer-generated data are effective for depicting market structure such as demonstrating positioning of competitive brands. However, most text mining algorithms would require manual reading to merge extracted product features with synonyms. In response, Topic modeling is introduced to group synonyms together under a topic automatically, leading to convenient and accurate evaluation of brands based on consumers’ online reviews. To ensure the feasibility of employing Topic modeling in assessing competitive brands, we developed a unique and novel framework named WVAP (Weights from Valid Posterior Probability) based on Scree plot technique. WVAP can filter the noises in posterior distribution obtained from Topic modeling, and improve accuracy in brand evaluation. A case study exploring online reviews of mobile phones is conducted. We extract topics to reflect the features of the cell phones with a qualified validity. In addition to perceptual maps derived by multi-dimensional scaling (MDS) for product positioning, we also rank these products by TOPSIS (Technique for Order Performance by Similarity to Ideal Solution) so as to visualize the market structure from different perspectives. Our case study of cell phones shows that the proposed framework is effective in mining online reviews and providing insights into the competitive landscape.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.