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168,982 papers · 148 categories

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0111 · Mar 201719922001200920172026
8 results for ego-network

Combines global and local features for better social circle prediction in ego-networks.

problem Efficiently analyzing ego-networks with hidden local structures.
method Evolved deep learning techniques to capture both global and local network features.
result Social circle prediction benefits from a combination of global and local features.

Study compares investor networks and cellphone communication networks to analyze layer structures.

problem Comparing investor networks and cellphone communication networks to understand information diffusion.
method Used clustering algorithms to detect layer structures in ego networks of both networks.
result Nodes in both networks can be divided into two groups with specific layer structures.

This work proposes multiple node representations for graphs, improving link prediction and community analysis.

problem Can nodes be best described by a single vector representation?
method A principled decomposition of the ego-network to learn multiple node representations.
result Improved link prediction accuracy by up to 90% and effective community analysis.

Validates conformal prediction for network data under non-uniform sampling.

problem Validity of conformal prediction for network data under non-representative sampling.
method Interprets sampling mechanisms as selection rules, studies validity conditional on selection events, uses permutation invariance and joint exchangeability.
result Finite-sample validity of conformal prediction for certain selection events and asymptotic validity for random walk sampling.

In online discussion communities, users can interact and share information and opinions on a wide variety of topics. However, some users may create multiple identities, or sockpuppets, and engage in undesired behavior by deceiving others or manipulating discussions. In this work, we study sockpuppetry across nine discu…

2017-03-21abs ↗pdf ↗