Newsletter no. 45

INHIGEO produces an annual publication that includes information on the commission's activities, national reports, book reviews, interviews and occasional historical articles.N

Explainable methods for knowledge graph refinement and exploration via symbolic reasoning

Knowledge Graphs (KGs) have applications in many domains such as Finance, Manufacturing, and Healthcare. While recent efforts have created large KGs, their content is far from complete and sometimes includes invalid statements. Therefore, it is crucial to refine the constructed KGs to enhance their coverage and accuracy via KG completion and KG validation. It is also vital to provide human-comprehensible explanations for such refinements, so that humans have trust in the KG quality. Enabling KG exploration, by search and browsing, is also essential for users to understand the KG value and limitations towards down-stream applications. However, the large size of KGs makes KG exploration very challenging. While the type taxonomy of KGs is a useful asset along these lines, it remains insufficient for deep exploration. In this dissertation we tackle the aforementioned challenges of KG refinement and KG exploration by combining logical reasoning over the KG with other techniques such as KG embedding models and text mining. Through such combination, we introduce methods that provide human-understandable output. Concretely, we introduce methods to tackle KG incompleteness by learning exception-aware rules over the existing KG. Learned rules are then used in inferring missing links in the KG accurately. Furthermore, we propose a framework for constructing human-comprehensible explanations for candidate facts from both KG and text. Extracted explanations are used to insure the validity of KG facts. Finally, to facilitate KG exploration, we introduce a method that combines KG embeddings with rule mining to compute informative entity clusters with explanations.Wissensgraphen haben viele Anwendungen in verschiedenen Bereichen, beispielsweise im Finanz- und Gesundheitswesen. Wissensgraphen sind jedoch unvollständig und enthalten auch ungültige Daten. Hohe Abdeckung und Korrektheit erfordern neue Methoden zur Wissensgraph-Erweiterung und Wissensgraph-Validierung. Beide Aufgaben zusammen werden als Wissensgraph-Verfeinerung bezeichnet. Ein wichtiger Aspekt dabei ist die Erklärbarkeit und Verständlichkeit von Wissensgraphinhalten für Nutzer. In Anwendungen ist darüber hinaus die nutzerseitige Exploration von Wissensgraphen von besonderer Bedeutung. Suchen und Navigieren im Graph hilft dem Anwender, die Wissensinhalte und ihre Limitationen besser zu verstehen. Aufgrund der riesigen Menge an vorhandenen Entitäten und Fakten ist die Wissensgraphen-Exploration eine Herausforderung. Taxonomische Typsystem helfen dabei, sind jedoch für tiefergehende Exploration nicht ausreichend. Diese Dissertation adressiert die Herausforderungen der Wissensgraph-Verfeinerung und der Wissensgraph-Exploration durch algorithmische Inferenz über dem Wissensgraph. Sie erweitert logisches Schlussfolgern und kombiniert es mit anderen Methoden, insbesondere mit neuronalen Wissensgraph-Einbettungen und mit Text-Mining. Diese neuen Methoden liefern Ausgaben mit Erklärungen für Nutzer. Die Dissertation umfasst folgende Beiträge: Insbesondere leistet die Dissertation folgende Beiträge: • Zur Wissensgraph-Erweiterung präsentieren wir ExRuL, eine Methode zur Revision von Horn-Regeln durch Hinzufügen von Ausnahmebedingungen zum Rumpf der Regeln. Die erweiterten Regeln können neue Fakten inferieren und somit Lücken im Wissensgraphen schließen. Experimente mit großen Wissensgraphen zeigen, dass diese Methode Fehler in abgeleiteten Fakten erheblich reduziert und nutzerfreundliche Erklärungen liefert. • Mit RuLES stellen wir eine Methode zum Lernen von Regeln vor, die auf probabilistischen Repräsentationen für fehlende Fakten basiert. Das Verfahren erweitert iterativ die aus einem Wissensgraphen induzierten Regeln, indem es neuronale Wissensgraph-Einbettungen mit Informationen aus Textkorpora kombiniert. Bei der Regelgenerierung werden neue Metriken für die Regelqualität verwendet. Experimente zeigen, dass RuLES die Qualität der gelernten Regeln und ihrer Vorhersagen erheblich verbessert. • Zur Unterstützung der Wissensgraph-Validierung wird ExFaKT vorgestellt, ein Framework zur Konstruktion von Erklärungen für Faktkandidaten. Die Methode transformiert Kandidaten mit Hilfe von Regeln in eine Menge von Aussagen, die leichter zu finden und zu validieren oder widerlegen sind. Die Ausgabe von ExFaKT ist eine Menge semantischer Evidenzen für Faktkandidaten, die aus Textkorpora und dem Wissensgraph extrahiert werden. Experimente zeigen, dass die Transformationen die Ausbeute und Qualität der entdeckten Erklärungen deutlich verbessert. Die generierten unterstützen Erklärungen unterstütze sowohl die manuelle Wissensgraph- Validierung durch Kuratoren als auch die automatische Validierung. • Zur Unterstützung der Wissensgraph-Exploration wird ExCut vorgestellt, eine Methode zur Erzeugung von informativen Entitäts-Clustern mit Erklärungen unter Verwendung von Wissensgraph-Einbettungen und automatisch induzierten Regeln. Eine Cluster-Erklärung besteht aus einer Kombination von Relationen zwischen den Entitäten, die den Cluster identifizieren. ExCut verbessert gleichzeitig die Cluster- Qualität und die Cluster-Erklärbarkeit durch iteratives Verschränken des Lernens von Einbettungen und Regeln. Experimente zeigen, dass ExCut Cluster von hoher Qualität berechnet und dass die Cluster-Erklärungen für Nutzer informativ sind

Russia-China Relations

This open access book examines Russia-China relations across a variety of civilian and military areas of cooperation. Leading experts in the field present empirical case studies covering a wide range of strategic cooperation areas between Russia and China, such as technological, military, economic and political cooperation. The contributing authors shed new light on Chinese and Russian strategic goals, external push and pull factors, and mutual perception shifts, and discuss the options for Western countries to influence this development. This book analyses the evolution of the relationship since the watershed moment of the Crimean crisis in 2014, and whether or not a full-blown military alliance, as hinted in late 2020 by President Putin, is indeed a realistic scenario for which NATO will have to prepare. It will appeal to students and scholars of international relations, political decision-makers, as well as anyone interested in Eurasian politics and the potential military-strategic impact of a Russian-Chinese alliance for NATO

New Directions in Strategic Thinking 2.0

"The Australian National University’s Strategic & Defence Studies Centre (SDSC) is Australia’s premier university-based strategic studies think tank. Fifty years after the Centre was founded in 1966, SDSC celebrated its continued research, publications, teaching and government advisory role with a two-day conference entitled ‘New Directions in Strategic Thinking 2.0’. The event saw the podium graced by many of the world’s premier thinkers in the strategic studies field. An evening between those tours to the lectern brought together academics, practitioners and other honoured guests at a commemorative dinner held beneath the widespread wings of the ‘G for George’ bomber in the Australian War Memorial—an event that included SDSC’s own Professor Desmond Ball AO making his last public appearance. Since SDSC’s 25th anniversary, the world has seen the collapse of the Soviet Union and the end of the Cold War. Bipolarity gave way to the emergence of the United States as the world’s sole superpower, a status many now see as under threat. Both the nature of the threats and identity of individual competitors has changed in the interim quarter-century. Non-state actors are presenting rising challenges to national governments. Meanwhile, a diminished Russia and far more wealthy China seek to reassert themselves. Never before has the call for reasoned innovative security studies thinking been more pronounced. Rarely has a group so able to offer that thought come together as was the case in July 2016. This book encapsulates the essence of this cutting-edge thinking and is a must read for those concerned with emerging strategic challenges facing Australia and its security partners.

Ideational imperatives, national identity, and nuclear deterrence theory in East Asia

Since the end of the Cold War, the emphasis on nuclear deterrence has declined. The rise of China has generated a voluminous literature on power transition theory and whether China and the United States can avoid the “Thucydides Trap.” A lacuna in this literature is the role that nuclear deterrence plays in the strategic dynamic between the United States, Japan, and China. This dissertation fills this lacuna by analyzing the role that nuclear deterrence plays in the military strategies of Japan, China, and the United States. How do China and Japan internalize and understand nuclear deterrence theory in ways that depart from the Cold War paradigm? What effect do dissimilar conceptions of nuclear deterrence theory have on the nuclear and conventional force structure and strategies of each country? To understand the reasons for variation in nuclear strategy in East Asia, I argue that contra systemic theories Japan legitimizes its military capabilities in an extended nuclear deterrence framework based on ideationally driven constitutional theory. Departing from Japan’s strategic mindset during the Cold War, China now occupies the place of the “Other” in Japanese national identity, thus in part explaining its shift to a more pro-active military posture. This is to say that it is not China’s rise that preoccupies Japan, but China’s rise that influences Japanese strategic behavior. Lastly, I argue that China’s assertive foreign policy behavior and nuclear strategy are driven not by structural incentives dictated by the international system, but by ideational and historical imperatives under the rubric of the “China Dream (zhongguo meng)” and “National Rejuvenation (minzu fuxing).” Using analyses of Japanese and Chinese language sources, e.g., official government and defense documents, newspapers, books, and journal articles, this dissertation makes two major contributions. First, departing from the dominant and acultural structural realist and game theoretic approaches to nuclear deterrence theory, it offers an alternative “thin constructivist approach” that considers distinct ideational determinants of each country’s approach to nuclear deterrence theory and their effect on nuclear strategy. Second, it uncovers dissimilar approaches to nuclear escalation that depart from Cold War-derived models

Annual Report, 2013-2014

Beginning in 2004/2005- issued in online format onl

Reaching beyond ourselves: Celebrating 40 years of CALA (1973 - 2013)

The CALA 40th Anniversary Issue, Reaching Beyond Ourselves: Celebrating 40 Years of CALA (1973-2013), is without doubt a unique collection of the Chinese American Librarians Association’s (CALA) history. It contains pictures, biographies, citations and messages from the presidents of the CALA since its very beginning in 1973, obtained from historical CALA newsletters and the presidents themselves. It records the major events in a timeline format including the establishment of the association, the merge of CALA and CLA, the California based Chinese Librarians Association, the annual conference programs and the new initiatives. It collects personal contemplations, messages and greetings from a variety of people, including CALA members and its leaders, ALA leaders, government officials, and Chinese libraries and librarian associations. It documents the effort in finding and archiving some of the CALA historical materials. It reports the endeavors of some major initiatives such as the CALA 21st Century Librarian Seminar Series and the “Think Globally, Act Globally” US-China Librarian Collaboration project. It contains a special article on Dr. Hwa-Wei Lee and the special Chinese collections in the Library of Congress; and a first-hand report on the CALA 40th Anniversary Celebration and Awards Banquet. It also includes information on the seven CALA chapters, a glimpse into CALA’s 1980 and 2013 membership and the Chinese Librarians Summer Program at the University of Illinois at Urbana-Champaign. It concludes with a collection of pictures taken at the 40th Anniversary annual program and banquet. This publication documents the history of a professional organization and celebrates creativity, diversity and global outreach. Its presentation is pleasant to the eyes of the general public and will be a valuable source for the librarians and researchers

New Directions in Strategic Thinking 2.0

"The Australian National University’s Strategic & Defence Studies Centre (SDSC) is Australia’s premier university-based strategic studies think tank. Fifty years after the Centre was founded in 1966, SDSC celebrated its continued research, publications, teaching and government advisory role with a two-day conference entitled ‘New Directions in Strategic Thinking 2.0’. The event saw the podium graced by many of the world’s premier thinkers in the strategic studies field. An evening between those tours to the lectern brought together academics, practitioners and other honoured guests at a commemorative dinner held beneath the widespread wings of the ‘G for George’ bomber in the Australian War Memorial—an event that included SDSC’s own Professor Desmond Ball AO making his last public appearance. Since SDSC’s 25th anniversary, the world has seen the collapse of the Soviet Union and the end of the Cold War. Bipolarity gave way to the emergence of the United States as the world’s sole superpower, a status many now see as under threat. Both the nature of the threats and identity of individual competitors has changed in the interim quarter-century. Non-state actors are presenting rising challenges to national governments. Meanwhile, a diminished Russia and far more wealthy China seek to reassert themselves. Never before has the call for reasoned innovative security studies thinking been more pronounced. Rarely has a group so able to offer that thought come together as was the case in July 2016. This book encapsulates the essence of this cutting-edge thinking and is a must read for those concerned with emerging strategic challenges facing Australia and its security partners.