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Expert finding, aiming to answer the question: “Who are experts on topic X?”, is becoming one of the biggest challenges for information management. Much work has been conducted for expert finding. Methods based on language model, topic model, and random walk have been proposed. However, little work has studied why people want to find experts. In this work,(More)
Information network contains abundant knowledge about relationships among people or entities. Unfortunately, such kind of knowledge is often hidden in a network where different kinds of relationships are not explicitly categorized. For example, in a research publication network, the advisor-advisee relationships among researchers are hidden in the coauthor(More)
We introduce a framework for topical keyphrase generation and ranking, based on the output of a topic model run on a collection of short documents. By shifting from the unigramcentric traditional methods of keyphrase extraction and ranking to a phrase-centric approach, we are able to directly compare and rank phrases of different lengths. Our method defines(More)
We introduce KERT (Keyphrase Extraction and Ranking by Topic), a framework for topical keyphrase generation and ranking. By shifting from the unigram-centric traditional methods of unsupervised keyphrase extraction to a phrase-centric approach, we are able to directly compare and rank phrases of different lengths. We construct a topical keyphrase ranking(More)
The advent and ubiquity of mass-market portable computational devices has opened up new opportunities for the development of assistive technologies for disabilities, especially within the domain of augmentative and alternative communications (AAC) devices. Word prediction can facilitate everyday communication on mobile devices by reducing the physical(More)
At present methods for constructing data warehouses are almost “case-to-case” pattern. This study illustrates the “case-to-case” pattern for ETL process in the course of the data warehouse construction with an example and shows that its biggest shortcoming is lower efficiency. The “builder pattern” is one of design(More)
There has been a focus on the management of the complex engineering project. Firstly the organizational design elements that affect the decision making performance of a complex engineering project in the uncertain environment are analyzed. Then an agent-based model is proposed, in which the environmental uncertainty is represented with environmental(More)
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