This paper proposes a new concurrent data structure, called parallel hash table, for synchronizing the access of multiple threads to resources stored in a shared buffer. We prove theoretically the complexity of the operations and the upper limit on the thread conflict probability of the parallel hash table. To empirically evaluate the proposed concurrent data structure, we compare the performan...

This paper describes requirements placed upon client-server interaction in a multi-server operating system and how to answer those requirements. Addressed are the problems of binding maintenance in the face of: remote method invocation, forking, binding transfer, authentication, asynchronous interruption, and client crashes. Design and implementation choices are analyzed. The solutions, used by...

A knowledge-based system is suitable for realizing advanced functions that require domain-specific expert knowledge in enterprisemission-critical information systems (enterprise applications). This paper describes a newly implemented multi-threaded Prolog system that evolves single-threaded Inside Prolog. It is intended as a means to apply a knowledge-based system written in Prolog to an enterp...

This paper describes the START Information Server built at the MIT Arti cial Intelligence Laboratory Available on the World Wide Web since December the START Server provides users with access to multi media information in response to questions for mulated in English Over the last years the START Server answered hundreds of thousands of questions from users all over the world The START Server is...

This paper describes the START Information Server built at the MIT Artificial Intelligence Laboratory. Available on the World Wide Web since December 1993, the START Server provides users with access to multi-media nformation i response to questions formulated in English. Over the last 3 years, the START Server answered hundreds of thousands of questions from users all over the world. The START...

Multi-server Federated learning (FL) has been considered as a promising solution to address the limited communication resource problem of single-server FL. We consider typical multi-server FL architecture, where coverage areas regional servers may overlap. The key point this architecture is that clients located in overlapping update their local models based on average model all accessible model...

By offloading computationally intensive tasks of smart end devices to edge servers deployed at the network, mobile computing (MEC) has become a promising technology provide services for Internet Things (IoT) devices. In order further improve access capability MEC and increase spectrum utilization efficiency, in this article, Non-Orthogonal Multiple Access (NOMA) is introduced into systems we st...

We consider learning-based variants of the cμ rule – a classic and well-studied scheduling policy – in single and multi-server settings for multi-class queueing systems. In the single server setting, the cμ rule is known to minimize the expected holdingcost (weighted queue-lengths summed both over classes and time). We focus on the setting where the service rates μ are unknown, and are interest...