Traditional product evaluation research is to collect data through questionnaires or interviews optimize design, but the whole process takes a long time deploy and cannot fully reflect market situation. Aiming at this problem, we propose prediction model based on multi-level deep feature fusion of online reviews. It mines satisfaction from massive reviews published by users e-commerce websites,...

Many web services like eBay, Tripadvisor, Epinions, etc, provide historical product ratings so that users can evaluate the quality of products. Product ratings are important since they affect how well a product will be adopted by the market. The challenge is that we only have " partial information " on these ratings: Each user provides ratings to only a " small subset of products ". Under this ...

Based on the study and analysis of product design evaluation, structure model of product evaluation in stages based on robust design is presented, and the key technologies are studied. Robust design aims to develop a product that satisfies design requirements while ensuring minimal effects of environmental variability on product performance. The different methods of robust design are applied in...

abstract major of hydrological systems are very complicated and it is not possible to understand them completely, therefore simplification is necessary to understand or control of a part of the system behavior such as water balance relationships. hydrological models are simple structure of complicated systems in water cycle in the nature. the first goal of a hydrological model is function predi...

The parameter-based technique provides an efficient and valid means of constructing 3-D geometric models in many CAD software systems. However, its use is generally restricted to the design of mechanical components with regular configurations, and it is not ideally suited to product form and color design. This paper proposes a rapid conceptual design approach, which creates color-rendered forms...

despite the existence of vigorous theoretical basis lor cooperatives little attention has been paid to it in iran. at the same time, little use has been made of the quantitative models for analyzing the efiects and impacts of cooprative activities in economic literature. in this study, followed by a review of literature on cooperaion theory, a simple quantitative model was examined. this model ...

abstract- the high production of orange fruit in iran calls for quality sorting of this product as a requirement for entering global markets. this study was devoted to the development of an automatic fruit sorter based on size. the hardware consisted of two units. an image acquisition apparatus equipped with a camera, a robotic arm and controller circuits. the second unit consisted of a robotic...

simulation of rough rice drying is one of the proper methods for predicting moisture distribution in the product, and throughout the process of drying. the drying process must be well understood and controlled so that design guidelines which reduce or minimize drying damage to rough rice can be established and improved. therefore, an accurate understanding and description of the drying mechanis...