no code implementations • NAACL 2018 • Ukyo Honda, Tsutomu Hirao, Masaaki Nagata
We propose a simple but highly effective automatic evaluation measure of summarization, pruned Basic Elements (pBE).
1 code implementation • EACL 2021 • Ukyo Honda, Yoshitaka Ushiku, Atsushi Hashimoto, Taro Watanabe, Yuji Matsumoto
Unsupervised image captioning is a challenging task that aims at generating captions without the supervision of image-sentence pairs, but only with images and sentences drawn from different sources and object labels detected from the images.
1 code implementation • 6 Dec 2022 • Ukyo Honda, Taro Watanabe, Yuji Matsumoto
Discriminativeness is a desirable feature of image captions: captions should describe the characteristic details of input images.
no code implementations • 25 Aug 2023 • Yuu Jinnai, Tetsuro Morimura, Ukyo Honda
To this end, we introduce Lookahead Beam Search (LBS), a multi-step lookahead search that optimizes the objective considering a fixed number of future steps.
no code implementations • 9 Nov 2023 • Yuu Jinnai, Tetsuro Morimura, Ukyo Honda, Kaito Ariu, Kenshi Abe
MBR decoding selects a hypothesis from a pool of hypotheses that has the least expected risk under a probability model according to a given utility function.
1 code implementation • 10 Jan 2024 • Yuu Jinnai, Ukyo Honda, Tetsuro Morimura, Peinan Zhang
We propose two variants of MBR, Diverse MBR (DMBR) and $k$-medoids MBR (KMBR), methods to generate a set of sentences with high quality and diversity.
no code implementations • 22 Mar 2024 • Hwichan Kim, Shota Sasaki, Sho Hoshino, Ukyo Honda
To confirm this hypothesis, we devise a method named Conditionally Parameterized LoRA (CondLoRA) that updates initial weight matrices with low-rank matrices derived from a single linear layer.
1 code implementation • 31 Mar 2024 • Atsumoto Ohashi, Ukyo Honda, Tetsuro Morimura, Yuu Jinnai
Minimum Bayes-risk (MBR) decoding has recently gained renewed attention in text generation.