Aggregating Information in Option Transactions

Rules for aggregating information

We present a model of information aggregation in which agents’ information is represented through partitions over states of the world. We discuss three axioms, meet separability, upper unanimity, and non-imposition, and show that these three axioms characterize the class of oligarchic rules, which combine all of the information held by a pre-specified set of individuals. JEL classification: D70...

A truthful Screening Mechanism for Improving Information Asymmetry in Initial Public Offering Transactions

An overview of operators for aggregating information

In this work, we first make a survey of the existing main aggregation operators and then propose some new aggregation operators such as the induced ordered weighted geometric averaging (IOWGA) operator, generalized induced ordered weighted averaging (GIOWA) operator, hybrid weighted averaging (HWA) operator, etc., and study their desirable properties. Finally, we briefly classify all of these a...

Aggregating Continuous Word Embeddings for Information Retrieval

While words in documents are generally treated as discrete entities, they can be embedded in a Euclidean space which reflects an a priori notion of similarity between them. In such a case, a text document can be viewed as a bag-ofembedded-words (BoEW): a set of realvalued vectors. We propose a novel document representation based on such continuous word embeddings. It consists in non-linearly ma...

Aggregating Community Information to Explore Social Connections

We introduce our ongoing work in community networks and present a system that aggregates geographical community news and events information from local news and social media. Our goal is to present community information according to its content and to make it more visible to local residents, thereby increasing community awareness. We also present a data analysis of how local residents are connec...