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Communications of the ACM

71 - 80 of 3,299 for bentley

An efficient routing database

Routing is an important problem in the process of design creation. In this paper, we focus on the problem of designing a database for the non-partitioned routing problem. New technology libraries describe constraints that are hard to manage in grid-based approaches to the routing database. While general region query based data-structures have been proposed, they typically suffer from speed problems when applied to large blocks. We introduce an interval-based approach. It provides more flexibility than grid-based techniques. It exploits the notion of preferred direction for metal layers to manage the memory efficiently. It supports efficient region queries. We finally present a comparison study for real industrial designs on this database.

Revising the IS undergraduate model curriculum

Writing my first inroads IS Education column requires stepping into big shoes. I take this opportunity to thank my mentor, friend, and colleague, Dr. John T. Gorgone, for the excellent work he has done with this column to keep the broader computing community aware of the events and issues under discussion in IS education, to promote new initiatives, and to form connections between IS and other computing disciplines. I am looking forward to building on the strong foundation his work has formed.

The user in flux: bringing HCI and digital arts together to interrogate shifting roles in interactive media

With the advent of interactive digital media, people are no longer simply 'users'. They actively shift between various roles: author, collaborator, and even performer. We coin the term "user in flux" to problematize static definitions of "the user" and highlight how people's roles and practices switch and evolve when engaged in such interactions. Drawing from participatory practices and seeking inspiration from interactive artists, this workshop explores the "user in flux" with an aim to establish directions and approaches that can revitalize the HCI community's understanding of the user and inform the design of technologies used for interacting with digital media, and promote a new research agenda.

Stoicheia: Architecture, Sound and Tesla's Apotheosis

Stoicheia, is an immersive installation focusing on the making of a synthetic ecology and informing the process of architecture using sound. After the reception of enigmatic radio signals in 1899, Tesla began work for many years to perfect the receiving and transmitting equipment that was needed to better pick up and translate his aural discoveries. Stoicheia explores similar notions of Telsa's Aether using specific data feeds and scanning techniques to create a dynamic spatial soundscape drawing upon an experience of immediacy, and ephemeral interplay between the agencies that maintain a continuously self-adaptive sonic and physical environment.

Towards efficient dominant relationship exploration of the product items on the web

In recent years, there has been a prevalence of search engines being employed to find useful information in the Web as they efficiently explore hyperlinks between web pages which define a natural graph structure that yields a good ranking. Unfortunately, current search engines cannot effectively rank those relational data, which exists on dynamic websites supported by online databases. In this study, to rank such structured data (i.e., find the "best" items), we propose an integrated online system consisting of compressed data structure to encode the dominant relationship of the relational data. Efficient querying strategies and updating scheme are devised to facilitate the ranking process. Extensive experiments illustrate the effectiveness and efficiency of our methods. As such, we believe the work in this poster can be complementary to traditional search engines.

Privacy and HCI: methodologies for studying privacy issues

This workshop aims to reflect on methodologies to empirically study privacy issues related to advanced technology. The goal is to address methodological concerns by drawing upon both theoretical perspectives as well as practical experiences.