title: Dimension-Based Subscription Pruning for Publish/Subscribe Systems

authors: Bittner, Sven

subjects: computer science

abstract: Subscription pruning has been proven as valuable routing optimization for Boolean subscriptions in publish/ subscribe systems. It aims at optimizing subscriptions independently of each other and is thus applicable for all kinds of subscriptions regardless of their individual and collective structures. The original subscription pruning approach tries to optimize the event routing process based on the expected increase in network load. However, a closer look at pruning-based routing reveals its further applicability to optimizations in respect to other dimensions. In this paper, we introduce and investigate subscription pruning based on three dimensions of optimization: network load, memory usage, and system throughput. We present the algorithms to perform prunings based on these dimensions and discuss the results of a series of practical experiments. Our analysis reveals the advantages and disadvantages of the different dimensions of optimization and allows conclusions about the suitability of dimension-based pruning for different application requirements.

text: Dimension-Based Subscription Pruning for Publish/Subscribe Systems Subscription pruning has been proven as valuable routing optimization for Boolean subscriptions in publish/ subscribe systems. It aims at optimizing subscriptions independently of each other and is thus applicable for all kinds of subscriptions regardless of their individual and collective structures. The original subscription pruning approach tries to optimize the event routing process based on the expected increase in network load. However, a closer look at pruning-based routing reveals its further applicability to optimizations in respect to other dimensions. In this paper, we introduce and investigate subscription pruning based on three dimensions of optimization: network load, memory usage, and system throughput. We present the algorithms to perform prunings based on these dimensions and discuss the results of a series of practical experiments. Our analysis reveals the advantages and disadvantages of the different dimensions of optimization and allows conclusions about the suitability of dimension-based pruning for different application requirements.

year: 2006

title: The Principal source for Grabbe's historical tragedy "Hannibal"

authors: Forsyth, Christine Lynette

abstract: It is a recognized fact , despite the contention of one literary critic , that before and during the writing of his historical tragedy, Hannibal, in the years 1834 and 1835, Grabbe consulted several of the most significant German, French and English historical works of the eighteenth and early nineteenth centuries, as well as the ancient accounts of Roman history, in his attempt to gain and present in dramatic form an accurate , yet comprehensive view of the history of Hannibal and the Carthaginians from around the time of the Second and Third Punic Wars.
In the following investigation, it is my intention to show that the Acciajouli biography of Hannibal, included as a supplement in Plutarch's Lives, in fact became the dramatist's principal source for his tragedy. In the process of my inquiry, I intend to reveal on the one hand what Grabbe owed to his source by way of historical events and historical atmosphere, and, on the other hand, what information he employed in his presentation of historical characters . Finally, I shall consider the question of why the dramatist might have diverged from history and what effects such changes have produced.

text: The Principal source for Grabbe's historical tragedy "Hannibal" It is a recognized fact , despite the contention of one literary critic , that before and during the writing of his historical tragedy, Hannibal, in the years 1834 and 1835, Grabbe consulted several of the most significant German, French and English historical works of the eighteenth and early nineteenth centuries, as well as the ancient accounts of Roman history, in his attempt to gain and present in dramatic form an accurate , yet comprehensive view of the history of Hannibal and the Carthaginians from around the time of the Second and Third Punic Wars.
In the following investigation, it is my intention to show that the Acciajouli biography of Hannibal, included as a supplement in Plutarch's Lives, in fact became the dramatist's principal source for his tragedy. In the process of my inquiry, I intend to reveal on the one hand what Grabbe owed to his source by way of historical events and historical atmosphere, and, on the other hand, what information he employed in his presentation of historical characters . Finally, I shall consider the question of why the dramatist might have diverged from history and what effects such changes have produced.

year: 1972

title: “If it don’t talk, it's not whakapapa data”: Conceptualising whakapapa data in a digital age

authors: Pēpi Tarapa‐Dewes, Ella

subjects: data protection

abstract: In Te Ao Māori, whakapapa is a sacred framework that connects all aspects of existence. Whakapapa is highly sensitive information and a taonga that requires active protection. But what can be considered whakapapa data in a digital age where data linkage is ubiquitous and the boundaries between personal and collective information are increasingly blurred? We explore this question through a case study with Ngāti Tiipa, a hapū that is actively engaged in its own data sovereignty research. Reflexive thematic analysis of whānau kōrero identified three types of whakapapa data, each denoting a specific kind of connection: 1) between relatives, both living and deceased; 2) between people and places of cultural significance; and 3) between people and the spiritual realm. Whānau concepts of whakapapa data tend to be context‐specific, suggesting that it is more useful to think of whakapapa data as dynamic and relational rather than a fixed, inherent attribute.

text: “If it don’t talk, it's not whakapapa data”: Conceptualising whakapapa data in a digital age In Te Ao Māori, whakapapa is a sacred framework that connects all aspects of existence. Whakapapa is highly sensitive information and a taonga that requires active protection. But what can be considered whakapapa data in a digital age where data linkage is ubiquitous and the boundaries between personal and collective information are increasingly blurred? We explore this question through a case study with Ngāti Tiipa, a hapū that is actively engaged in its own data sovereignty research. Reflexive thematic analysis of whānau kōrero identified three types of whakapapa data, each denoting a specific kind of connection: 1) between relatives, both living and deceased; 2) between people and places of cultural significance; and 3) between people and the spiritual realm. Whānau concepts of whakapapa data tend to be context‐specific, suggesting that it is more useful to think of whakapapa data as dynamic and relational rather than a fixed, inherent attribute.

year: 2026-02