Name
Abstract | ||
|---|---|---|
Choice modeling (CM) aims to describe and predict choices according to attributes of subjects and options. If we presume each choice making as the formation of link between subjects and options, immediately CM can be bridged to link analysis and prediction (LAP) problem. However, such a mapping is often not trivial and straightforward. In LAP problems, the only available observations are links among objects but their attributes are often inaccessible. Therefore, we extend CM into a latent feature space to avoid the need of explicit attributes. Moreover, LAP is usually based on binary linkage assumption that models observed links as positive instances and unobserved links as negative instances. Instead, we use a weaker assumption that treats unobserved links as pseudo negative instances. Furthermore, most subjects or options may be quite heterogeneous due to the long-tail distribution, which is failed to capture by conventional LAP approaches. To address above challenges, we propose a Bayesian heteroskedastic choice model to represent the non-identically distributed linkages in the LAP problems. Finally, the empirical evaluation on real-world datasets proves the superiority of our approach. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/ICDM.2014.84 | ICDM |
Keywords | Field | DocType |
parallel gibbs sampling,heteroskedastic choice model,statistical distributions,belief networks,cm,link analysis and prediction,long-tail distribution,pseudo negative instances,data analysis,non-iid bayesian analysis,lap problems,bayesian heteroskedastic choice modeling,nonidentically distributed linkages,couplings,data models,vectors,predictive models | Econometrics,Data modeling,Data mining,Heteroscedasticity,Computer science,Link analysis,Artificial intelligence,Binary number,Feature vector,Linkage (mechanical),Independent and identically distributed random variables,Machine learning,Bayesian probability | Conference |
ISSN | Citations | PageRank |
1550-4786 | 1 | 0.35 |
References | Authors | |
9 | 6 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Liang Hu | 1 | 166 | 15.64 |
| Wei Cao | 2 | 5 | 2.12 |
| Jian Cao | 3 | 41 | 11.40 |
| Guandong Xu | 4 | 8 | 2.11 |
| Longbing Cao | 5 | 2212 | 185.04 |
| Zhiping Gu | 6 | 132 | 9.49 |