tailieunhanh - Báo cáo khoa học: "Mining Refinements to Online Instructions from User Generated Content"

There are a growing number of popular web sites where users submit and review instructions for completing tasks as varied as building a table and baking a pie. In addition to providing their subjective evaluation, reviewers often provide actionable refinements. These refinements clarify, correct, improve, or provide alternatives to the original instructions. However, identifying and reading all relevant reviews is a daunting task for a user. | Spice it Up Mining Refinements to Online Instructions from User Generated Content Gregory Druck Yahoo Research gdruck@ Bo Pang Yahoo Research bopang42@ Abstract There are a growing number of popular web sites where users submit and review instructions for completing tasks as varied as building a table and baking a pie. In addition to providing their subjective evaluation reviewers often provide actionable refinements. These refinements clarify correct improve or provide alternatives to the original instructions. However identifying and reading all relevant reviews is a daunting task for a user. In this paper we propose a generative model that jointly identifies user-proposed refinements in instruction reviews at multiple granularities and aligns them to the appropriate steps in the original instructions. Labeled data is not readily available for these tasks so we focus on the unsupervised setting. In experiments in the recipe domain our model provides F1 for predicting refinements at the review level and F1 for predicting refinement segments within reviews. 1 Introduction People turn to the web to seek advice on a wide variety of subjects. An analysis of web search queries posed as questions revealed that how to questions are the most popular Pang and Kumar 2011 . People consult online resources to answer technical questions like how to put music on my ipod and to find instructions for tasks like tying a tie and cooking Thanksgiving dinner. Not surprisingly there are many Web sites dedicated to providing instructions. For instance on the popular DIY site share what you 545 make users post instructions for making a wide variety of objects ranging from bed frames to The Stirling Engine absorb energy from candles coffee and more 1 There are also sites like that are dedicated to a specific domain. On these community-based instruction sites instructions are posted and reviewed by users. For instance the .