Search (14 results, page 1 of 1)

Sun, A.; Lim, E.-P.: Web unit-based mining of homepage relationships (2006) 0.01

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Date: 22. 7.2006 16:18:25
Language: e

Sun, A.; Lim, E.-P.; Ng, W.-K.: Performance measurement framework for hierarchical text classification (2003) 0.00

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Language: e

Qu, B.; Cong, G.; Li, C.; Sun, A.; Chen, H.: ¬An evaluation of classification models for question topic categorization (2012) 0.00
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Abstract

We study the problem of question topic classification using a very large real-world Community Question Answering (CQA) dataset from Yahoo! Answers. The dataset comprises 3.9 million questions and these questions are organized into more than 1,000 categories in a hierarchy. To the best knowledge, this is the first systematic evaluation of the performance of different classification methods on question topic classification as well as short texts. Specifically, we empirically evaluate the following in classifying questions into CQA categories: (a) the usefulness of n-gram features and bag-of-word features; (b) the performance of three standard classification algorithms (naive Bayes, maximum entropy, and support vector machines); (c) the performance of the state-of-the-art hierarchical classification algorithms; (d) the effect of training data size on performance; and (e) the effectiveness of the different components of CQA data, including subject, content, asker, and the best answer. The experimental results show what aspects are important for question topic classification in terms of both effectiveness and efficiency. We believe that the experimental findings from this study will be useful in real-world classification problems.

Language

e

Li, J.; Sun, A.; Xing, Z.: To do or not to do : distill crowdsourced negative caveats to augment api documentation (2018) 0.00

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Language: e

Zheng, X.; Sun, A.: Collecting event-related tweets from twitter stream (2019) 0.00

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Language: e

Li, H.; Bhowmick, S.S.; Sun, A.: AffRank: affinity-driven ranking of products in online social rating networks (2011) 0.00

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Language: e

Sun, A.; Bhowmick, S.S.; Nguyen, K.T.N.; Bai, G.: Tag-based social image retrieval : an empirical evaluation (2011) 0.00

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Language: e

Li, C.; Sun, A.; Datta, A.: TSDW: Two-stage word sense disambiguation using Wikipedia (2013) 0.00

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Language: e

Ma, Z.; Sun, A.; Cong, G.: On predicting the popularity of newly emerging hashtags in Twitter (2013) 0.00

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Language: e

Sedhai, S.; Sun, A.: ¬An analysis of 14 Million tweets on hashtag-oriented spamming* (2017) 0.00

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Language: e

Phan, M.C.; Sun, A.: Collective named entity recognition in user comments via parameterized label propagation (2020) 0.00

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Language: e

Lee, G.E.; Sun, A.: Understanding the stability of medical concept embeddings (2021) 0.00

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Language: e

Yu, M.; Sun, A.: Dataset versus reality : understanding model performance from the perspective of information need (2023) 0.00

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Language: e

Li, C.; Sun, A.: Extracting fine-grained location with temporal awareness in tweets : a two-stage approach (2017) 0.00

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Language: e

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