Collaborating Authors

Japan, China hold first senior security dialogue in nearly two years

The Japan Times

BEIJING – Japan and China on Monday held their first security dialogue involving senior diplomats and defense officials in nearly two years. The talks in Beijing took place as the two countries attempt to set up a maritime and aerial communication mechanism to prevent accidental clashes in and above the East China Sea, where China has been asserting its claim to the Japan-administered Senkaku Islands. The meeting was held before Chinese Premier Li Keqiang's potential first visit to Japan since taking office in 2013. He may visit next month to attend a trilateral summit involving the two countries and South Korea. Kong Xuanyou, China's assistant foreign minister, said he hopes the dialogue will play an "active role in enhancing the momentum of improving ties between the two countries."

Fully Corpus-Based Natural Language Dialogue System

AAAI Conferences

We describe a corpus-based approach of natural language dialogue system. The characteristic is that all the system's behaviors, like processing and understanding dialogues and generating responses, depend on corpora. As a result, the system can handle any language and any topic. This paper aims to explain the whole architecture and individual technology used in our project.

Cross-domain Dialogue Policy Transfer via Simultaneous Speech-act and Slot Alignment Artificial Intelligence

Dialogue policy transfer enables us to build dialogue policies in a target domain with little data by leveraging knowledge from a source domain with plenty of data. Dialogue sentences are usually represented by speech-acts and domain slots, and the dialogue policy transfer is usually achieved by assigning a slot mapping matrix based on human heuristics. However, existing dialogue policy transfer methods cannot transfer across dialogue domains with different speech-acts, for example, between systems built by different companies. Also, they depend on either common slots or slot entropy, which are not available when the source and target slots are totally disjoint and no database is available to calculate the slot entropy. To solve this problem, we propose a Policy tRansfer across dOMaIns and SpEech-acts (PROMISE) model, which is able to transfer dialogue policies across domains with different speech-acts and disjoint slots. The PROMISE model can learn to align different speech-acts and slots simultaneously, and it does not require common slots or the calculation of the slot entropy. Experiments on both real-world dialogue data and simulations demonstrate that PROMISE model can effectively transfer dialogue policies across domains with different speech-acts and disjoint slots.

Context representation and reasoning for dialogue managing spoken

AAAI Conferences

Dialogue management is the process of deciding what to do next in a dialogue. In human communication, dialogue management is a process that seems to go unnoticed much of the time; only rarely are we away of having to make a decision on what to say next, or on whether to say anything at all. When designing a computer dialogue system, however, we either have to pre-program the possible dialogues according to certain fixed sequence of utterances, or else we have to define a'dialogue manager', who decides what the system should do next based on a model of the current dialogue context. Research on the design of intelligent computer dialogue management systems has also inspired investigations of human dialogue management. These investigations have made it clear that human dialogue management is actually highly complex and sophisticated, and suggests that one of the stumbling blocks for the development of high-quality speech dialogue systems is the design of dialogue managers that have some of the sophistication and subtlety of human dialogue management. In this paper, we will examine the notion of'dialogue context' in the sense of the information that is relevant for deciding what to do next in a dialogue.

Mixed-Initiative Retrieval Dialogues Using Abductive Reasoning

AAAI Conferences

Using intelligent dialogue components, we can relate the isolated functions of information retrieval systems to larger tasks and help the user satisfy her information needs. Such dialogue components monitor the interaction between user and system and suggest what the user should do on the basis of her goals and the dialogue history. However, for these components to have the necessary flexibility, they must allow both user and system to take the initiative and control the direction of the dialogue. In our retrieval system, certain dialogue scripts decide who is in charge of the interaction and what are the recommended user acts in a goal-directed dialogue. The user can take the initiative at any point of the dialogue by issuing an act not recommended to her.