We investigate in a simple model whether a Jastrow-based approach for a many-body system containing two-body interactions can be exact. By comparison with recent assertions to the contrary, we find that in general the exact wave function is not purely two-body correlated. Nonetheless, we show that the energy estimate obtained from the calculations is as accurate as it can possibly be, suggestin...

Basic problems of complex systems are outlined with an emphasis on irreducibility and dynamic many-to-many correspondences. We discuss the importance of a constructive approach to artificial reality and the significance of an internal observer.

We give a 3 2 -approximation algorithm for finding stable matchings that runs in O(m) time. The previous most well-known algorithm, by McDermid, has the same approximation ratio but runs in O(nm) time, where n denotes the number of people and m is the total length of the preference lists in a given instance. In addition, the algorithm and the analysis are much simpler. We also give the extensio...

We develop a location model of price discrimination in many-to-many matching markets in which agents’ preferences are both vertically and horizontally differentiated. The optimal plans induce negative assortative matching at the margin: at any given location, agents with a low value for interacting with agents from the opposite side (the vertical dimension) are included in the matching sets of ...

This paper is devoted to the study of truthful mechanisms without payment for the many-to-many assignment problem. Given n agents and m tasks, a mechanism is truthful if no agent has an incentive to misreport her values on the tasks (agent ai reports a score wij for each task tj). The one-to-one version of this problem has already been studied by Dughmi and Ghosh [4] in a setting where the weig...

Recent research has acknowledged the need to shift from the traditional one to one e-enabled business model to a many-to-many one. With the introduction of the Internet in the 1990’s companies such as Blacksocks SA and Jacob Rohner AG suddenly found a mean and the environment to think about e-enabling their business models or even start a company purely based on that existence. Building on a wi...

Unlike many aspects of human language, pragmatics involves a systematic many-to-many mapping between form and meaning. This renders the computational problems of encoding and decoding meaning especially challenging, both for humans in normal conversation and for artificial dialogue systems that need to understand their users’ input. A particularly striking example of this difficulty is the reco...

This chapter proposes that search engines apply a verticalizing pressure on the WWW many-to-many information distribution model, forcing this to revert to a distributive model similar to that of the mass media. The argument for this starts with a critical descriptive examination of the history of search mechanisms for the Internet. Parallel to this there is a discussion of the increasing ties b...

Style transfer usually refers to the task of applying color and texture information from a specific style image to a given content image while preserving the structure of the latter. Here we tackle the more generic problem of semantic style transfer: given two unpaired collections of images, we aim to learn a mapping between the corpus-level style of each collection, while preserving semantic c...

The authors acknowledge that knowledge creation is a collaborative process by nature and attempt to leverage current IS methods and technology to recreate the classical salons that yielded philosophical discourse. Research has demonstrated physical proximity as a key indicator of both the undertaking and successful completion of research, yet this physical proximity has not shown analogous carr...