“To be a better girl ”
1. History of SNA
1.1. Background
1.2. Roadmap
1.3. Example
- Example in AMiner
- Expert Search
- Researcher Profile
- Collaboration Recommendation
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sparse connection
比较难找到跨学科的合作者
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topic skewness
not all topics are relevant for crossdomain collaborations
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- Reviewer Suggestion
2. Social Tie and Social Influence
- finding boss in email networks
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finding friends in mobile networks
挑战：
- 背后的作用力（fundamental forces ）
- 是否可以自动推断社会纽带类型
2.1. social tie
Problem Formulation
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input–social network（partially labeled）
包含用户集合，部分标记
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objective–learn a mapping function（predict the relationship semantics）
不仅要考虑已标记信息，也要考虑未标记的网络结构
basic idea
two ways
- model each user as a node
- model each relationship as a node
第一种更加直观，但难以描述不同关系间的关系
目标： 对于每一个关系，识别最有可能的类型
- 左边为input，右边是模型
- 对每一个关系节点，都有一个相关潜在变量y，表示该关系的类型
- 三个因子
- is attribute factor
- correlation factor
- constraint factor
solutions
- exponential-linear functions
- Log-Likelihood of labeled Data
challenge
- 更有效的训练数据
- 从其他网络借鉴
2.2. Inferring Social Ties across Heterogeneous Networks
social theories
- social balance theory
- structural hole theory
- social status theory
- two-step-flow theory
2.3. Peer Influence
- Formulation: Topic-based Social Influence Analysis
- The Solution: Topical Affinity Propagation
- The Solution: Topical Affinity Propagation
2.4. Structural Influence
Influence
- Peer influence
- Conformity influence
- Individual influence
3. Group and Structure
- Group Lyfecyle
- Structural Hole in Diffusion
Computational Models for Social Network Analysis
