Identifying networks with common organizational principles

Many complex systems can be represented as networks, and the problem of network comparison is becoming increasingly relevant. There are many techniques for network comparison, from simply comparing network summary statistics to sophisticated but computationally costly alignment-based approaches. Yet it remains challenging to accurately cluster networks that are of a different size and density, but hypothesized to be structurally similar. In this paper, we address this problem by introducing a new network comparison methodology that is aimed at identifying common organizational principles in networks. The methodology is simple, intuitive and applicable in a wide variety of settings ranging from the functional classification of proteins to tracking the evolution of a world trade network.Comment: 26 pages, 7 figure

Strengthening Out-of-School Time Nonprofits: The Role of Foundations in Building Organizational Capacity

Placing nonprofits in the larger context of city, state, and national policy, explores the capacity-building support nonprofits running afterschool and summer programs need to provide high-impact networks of learning and developmental opportunities

Organizations Focused On Immigrant Civic Participation Encourage Immigrants To Be Part of the Broader Community

The first year evaluation report on the Immigrant Participation & Immigration Reform (IPIR) initiative tells a story of human and social development -- newcomers joining and strengthening the democracy-among immigrants whose institutions engage them in organizational self-governance, leadership opportunities, and democratic civic activity. Indeed, evidence suggests that it is the quality of these organizations that draws immigrants into participation: Sixty-three percent of respondents said that one of their major motivations to be active in the community was that "I like being a part of an organization that does good work.

Enrichment and aggregation of topological motifs are independent organizational principles of integrated interaction networks

Topological network motifs represent functional relationships within and between regulatory and protein-protein interaction networks. Enriched motifs often aggregate into self-contained units forming functional modules. Theoretical models for network evolution by duplication-divergence mechanisms and for network topology by hierarchical scale-free networks have suggested a one-to-one relation between network motif enrichment and aggregation, but this relation has never been tested quantitatively in real biological interaction networks. Here we introduce a novel method for assessing the statistical significance of network motif aggregation and for identifying clusters of overlapping network motifs. Using an integrated network of transcriptional, posttranslational and protein-protein interactions in yeast we show that network motif aggregation reflects a local modularity property which is independent of network motif enrichment. In particular our method identified novel functional network themes for a set of motifs which are not enriched yet aggregate significantly and challenges the conventional view that network motif enrichment is the most basic organizational principle of complex networks.Comment: 12 pages, 5 figure

Contingency Factors of Virtual Organizations’ Emergence

Business organizations are permanently influenced by contingency factors which generate profound changes in their emergence, structures and forms. Globalization, technological progress, and changes in society are foundations of networked organization emergence. In the actual economic, social and technological contexts, progress assumes interdependence of many contingency factors that are in mutual interaction. The organizations integration in virtual organizations generates positive effects through which organizations become competitive and cope with the dynamics and turbulence of the business environment. Progress in areas such as networks of communications, telecommunications, information technology and social changes are preconditions for the emergence of the knowledge-based society and of the interconnected society in which new structures emerge that allow business activities and processes to unfold in a collaborative manner. The integration of organizations, especially of small and medium-sized enterprises, into networks of organizations, has become an important goal in the current economic environment, as the organizations are striving to become more competitive, to build skills and have access to know-how. To cope with changes and complexity of business sectors, the organizations seek to become more competitive by developing new business models, strategies and governance principles, processes, internal structures based on new organizational capabilities and resources. The identification and analysis of contingency factors of the emergence of virtual organizations are issues that can highlight the distinctive features of virtual organizations compared to other organizational forms, but also the differences between them and other network-type structures.virtual organizations, networked organizations, organizational structures, collaborative structures

Competency Implications of Changing Human Resource Roles

[Excerpt] The present study examines which competencies will be necessary to perform key human resource roles over the next decade at Eastman Kodak Company. This project was a critical component of an ongoing quality process to improve organizational capability. The results establish a platform that will enable Kodak to better assess, plan, develop, and measure the capability of human resource staff