Ryuichiro Higashinaka

Dissociating communicative success from representational alignment in common ground formation

In human–Large Language Model (LLM) interaction, communicative success is often used as a proxy for shared understanding. However, this assumption can also be examined in controlled agent–agent models that allow internal representations to be directly measured. We investigate whether increases in communication success...

Constructing a Multi-Party Conversational Corpus Focusing on Interlocutor Relationships

KABURI-TTS: Phoneme-Keyed Activity-conditioned Bi-channel Utterance Rendering for Interaction

Realizing full-duplex spoken dialogue requires large amounts of two-channel, one-speaker-per-channel conversational speech data. Although conversational text-to-speech (TTS) engines have been developed, they are not necessarily robust to two-party simultaneous phenomena such as backchannels, interruptions, and overlaps...