no code implementations • COLING 2022 • Haoxiang Shi, Rongsheng Zhang, Jiaan Wang, Cen Wang, Yinhe Zheng, Tetsuya Sakai
Pre-trained Language Models (PLMs) are the cornerstone of the modern Natural Language Processing (NLP).
1 code implementation • Findings (EMNLP) 2021 • Junjie Wang, Yatai Ji, Jiaqi Sun, Yujiu Yang, Tetsuya Sakai
On the other hand, trilinear models such as the CTI model efficiently utilize the inter-modality information between answers, questions, and images, while ignoring intra-modality information.
no code implementations • LREC 2022 • Yuji Naraki, Tetsuya Sakai, Yoshihiko Hayashi
Automatic dialogue summarization is a task used to succinctly summarize a dialogue transcript while correctly linking the speakers and their speech, which distinguishes this task from a conventional document summarization.
no code implementations • 27 Mar 2024 • Nuo Chen, Jiqun Liu, Hanpei Fang, Yuankai Luo, Tetsuya Sakai, Xiao-Ming Wu
This study examines the decoy effect's underexplored influence on user search interactions and methods for measuring information retrieval (IR) systems' vulnerability to this effect.
no code implementations • 4 Nov 2023 • Nuo Chen, Jiqun Liu, Tetsuya Sakai, Xiao-Ming Wu
In recent years, the influence of cognitive effects and biases on users' thinking, behaving, and decision-making has garnered increasing attention in the field of interactive information retrieval.
1 code implementation • 2 Oct 2023 • Yiyao Yu, Junjie Wang, Yuxiang Zhang, Lin Zhang, Yujiu Yang, Tetsuya Sakai
Artificial intelligence (AI) technologies should adhere to human norms to better serve our society and avoid disseminating harmful or misleading information, particularly in Conversational Information Retrieval (CIR).
1 code implementation • 30 Sep 2023 • Rikiya Takehi, Akihisa Watanabe, Tetsuya Sakai
Existing dialogue quality evaluation systems can return a score for a given system turn from a particular viewpoint, e. g., engagingness.
no code implementations • 5 Aug 2023 • Haoxiang Shi, Sumio Fujita, Tetsuya Sakai
In addition, consistency filtering often struggles to identify retrieval intentions and recognize query and corpus distributions in a target domain.
no code implementations • 6 Jul 2023 • Nuo Chen, Tetsuya Sakai
In this study, we investigate the statistical stability of C/W/L/A metrics from the perspective of: (1) the system ranking similarity among aggregations, (2) the system ranking consistency of aggregations and (3) the discriminative power of aggregations.
no code implementations • 15 May 2023 • Tetsuya Sakai
We present a simple and generic framework for auditing a given textual conversational system, given some samples of its conversation sessions as its input.
2 code implementations • 11 May 2023 • Qijiong Liu, Nuo Chen, Tetsuya Sakai, Xiao-Ming Wu
Personalized content-based recommender systems have become indispensable tools for users to navigate through the vast amount of content available on platforms like daily news websites and book recommendation services.
no code implementations • 6 May 2023 • Yuxiang Zhang, Junjie Wang, Xinyu Zhu, Tetsuya Sakai, Hayato Yamana
Named-entity recognition (NER) detects texts with predefined semantic labels and is an essential building block for natural language processing (NLP).
no code implementations • 2 Nov 2022 • Tetsuya Sakai, Sijie Tao, Zhaohao Zeng
In the context of depth-$k$ pooling for constructing web search test collections, we compare two approaches to ordering pooled documents for relevance assessors: the prioritisation strategy (PRI) used widely at NTCIR, and the simple randomisation strategy (RND).
no code implementations • 19 Oct 2022 • Tetsuya Sakai, Sijie Tao, Maria Maistro, Zhumin Chu, Yujing Li, Nuo Chen, Nicola Ferro, Junjie Wang, Ian Soboroff, Yiqun Liu
The noise is due to a fatal bug in the backend of our relevance assessment interface.
1 code implementation • 16 Oct 2022 • Ping Yang, Junjie Wang, Ruyi Gan, Xinyu Zhu, Lin Zhang, Ziwei Wu, Xinyu Gao, Jiaxing Zhang, Tetsuya Sakai
We propose a new paradigm for zero-shot learners that is format agnostic, i. e., it is compatible with any format and applicable to a list of language tasks, such as text classification, commonsense reasoning, coreference resolution, and sentiment analysis.
1 code implementation • CVPR 2023 • Yatai Ji, Junjie Wang, Yuan Gong, Lin Zhang, Yanru Zhu, Hongfa Wang, Jiaxing Zhang, Tetsuya Sakai, Yujiu Yang
Multimodal semantic understanding often has to deal with uncertainty, which means the obtained messages tend to refer to multiple targets.
no code implementations • 15 Apr 2022 • Tetsuya Sakai
More specifically, the present study defines and evaluates, in addition to the quantification measures considered earlier, a few variants of an ordinal quantification measure called Root Normalised Order-aware Divergence (RNOD), as well as a measure which we call Divergence based on Kendall's $\tau$ (DNKT).
no code implementations • 1 Apr 2022 • Tetsuya Sakai, Jin Young Kim, Inho Kang
We present a simple and versatile framework for evaluating ranked lists in terms of group fairness and relevance, where the groups (i. e., possible attribute values) can be either nominal or ordinal in nature.
no code implementations • CVPR 2022 • Riku Togashi, Mayu Otani, Yuta Nakashima, Esa Rahtu, Janne Heikkila, Tetsuya Sakai
First, it is rank-insensitive: It ignores the rank positions of successfully localised moments in the top-$K$ ranked list by treating the list as a set.
no code implementations • ACL 2021 • Tetsuya Sakai
Ordinal Quantification (OQ) is a related task where the gold data is a distribution over ordinal classes, and the system is required to estimate this distribution.
no code implementations • 11 May 2021 • Riku Togashi, Masahiro Kato, Mayu Otani, Tetsuya Sakai, Shin'ichi Satoh
However, such methods have two main drawbacks particularly in large-scale applications; (1) the pairwise approach is severely inefficient due to the quadratic computational cost; and (2) even recent model-based samplers (e. g. IRGAN) cannot achieve practical efficiency due to the training of an extra model.
no code implementations • 18 Apr 2021 • Zhaohao Zeng, Tetsuya Sakai
We introduce a data set called DCH-2, which contains 4, 390 real customer-helpdesk dialogues in Chinese and their English translations.
no code implementations • Asian Chapter of the Association for Computational Linguistics 2020 • Haoxiang Shi, Cen Wang, Tetsuya Sakai
This paper presents a deep neural architecture which applies the siamese convolutional neural network sharing model parameters for learning a semantic similarity metric between two sentences.
1 code implementation • 26 Oct 2020 • Timo Breuer, Nicola Ferro, Norbert Fuhr, Maria Maistro, Tetsuya Sakai, Philipp Schaer, Ian Soboroff
Replicability and reproducibility of experimental results are primary concerns in all the areas of science and IR is not an exception.
no code implementations • WS 2019 • Xiaoyu Qi, Ruihua Song, Chunting Wang, Jin Zhou, Tetsuya Sakai
Pictures can enrich storytelling experiences.
no code implementations • 6 May 2019 • Chih-Hao Wang, Sosuke Kato, Tetsuya Sakai
RSL19BD (Waseda University Sakai Laboratory) participated in the Fourth Dialogue Breakdown Detection Challenge (DBDC4) and submitted five runs to both English and Japanese subtasks.
no code implementations • 27 Mar 2019 • Tetsuya Sakai
NTCIR was the first large-scale IR evaluation conference to construct test collections with graded relevance assessments: the NTCIR-1 test collections from 1998 already featured relevant and partially relevant documents.