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Št. zadetkov: 5
Automatic Labeling of Multinomial Topic Models
Qiaozhu Mei
Video in druga učna gradiva
Oznake: computer science;text mining;machine learning;human language technology
Multinomial distributions over words are frequently used to model topics in text collections. A common, major challenge in applying all such topic models to any text mining problem is to label a multinomial topic model accurately so that a user can interpret the discovered topic. So far, such labels ...
Leto: 2007 Vir: videolectures.net
DivRank: the Interplay of Prestige and Diversity in Information Networks
Qiaozhu Mei
Video in druga učna gradiva
Oznake: computer science;data mining
Information networks are widely used to characterize the relationships between data items such as text documents. Many important retrieval and mining tasks rely on ranking the data items based on their centrality or prestige in the network. Beyond prestige, diversity has been recognized as a crucial ...
Leto: 2010 Vir: videolectures.net
Entropy of Search Logs: How Hard is Search? With Personalization? With Backoff?
Qiaozhu Mei
Video in druga učna gradiva
Oznake: computer science;web search
Leto: 2008 Vir: videolectures.net
Unexpected Relevance: An Empirical Study of Serendipity in Retweets
Qiaozhu Mei
Video in druga učna gradiva
Oznake: computer science;machine learning;social media;internet, world wide web
Serendipity is a beneficial discovery that happens in an unexpected way. It has been found spectacularly valuable in various contexts, including scientific discoveries, acquisition of business, and recommender systems. Although never formally proved with large-scale behavioral analysis, it is believ ...
Leto: 2013 Vir: videolectures.net
Learning Representations of Large-scale Networks
Qiaozhu Mei , Jian Tang
Video in druga učna gradiva
Oznake: data science;computer science
Large-scale networks such as social networks, citation networks, the World Wide Web, and traffic networks are ubiquitous in the real world. Networks can also be constructed from text, time series, behavior logs, and many other types of data. Mining network data attracts increasing attention in acade ...
Leto: 2017 Vir: videolectures.net
Št. zadetkov: 5
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