no code implementations • COLING 2022 • Jason Ingyu Choi, Saar Kuzi, Nikhita Vedula, Jie Zhao, Giuseppe Castellucci, Marcus Collins, Shervin Malmasi, Oleg Rokhlenko, Eugene Agichtein
Conversational Task Assistants (CTAs) are conversational agents whose goal is to help humans perform real-world tasks.
no code implementations • 21 Nov 2023 • Simone Filice, Jason Ingyu Choi, Giuseppe Castellucci, Eugene Agichtein, Oleg Rokhlenko
Experiments on three tasks, i. e., Shopping Utterance Generation, Product Question Generation and Query Auto Completion, demonstrate that our metrics are effective for evaluating STG tasks, and improve the agreement with human judgement up to 20% with respect to common NLG metrics.
1 code implementation • 19 Nov 2023 • Kaustubh D. Dhole, Ramraj Chandradevan, Eugene Agichtein
While search is the predominant method of accessing information, formulating effective queries remains a challenging task, especially for situations where the users are not familiar with a domain, or searching for documents in other languages, or looking for complex information such as events, which are not easily expressible as queries.
no code implementations • 3 Oct 2023 • Jianghong Zhou, Joyce C. Ho, Chen Lin, Eugene Agichtein
Interactive search can provide a better experience by incorporating interaction feedback from the users.
no code implementations • 30 Apr 2023 • Harshita Sahijwani, Kaustubh Dhole, Ankur Purwar, Venugopal Vasudevan, Eugene Agichtein
Structured interviews are used in many settings, importantly in market research on topics such as brand perception, customer habits, or preferences, which are critical to product development, marketing, and e-commerce at large.
no code implementations • 5 Apr 2023 • ZiHao Wang, Ali Ahmadvand, Jason Choi, Payam Karisani, Eugene Agichtein
Open-domain conversational search (ODCS) aims to provide valuable, up-to-date information, while maintaining natural conversations to help users refine and ultimately answer information needs.
no code implementations • 31 Mar 2023 • ZiHao Wang, Eugene Agichtein, Jinho Choi
In a multi-turn dialogue, to capture the gist of a conversation, contextual information serves as essential knowledge to achieve this goal.
no code implementations • 9 Nov 2022 • Chen Lin, Safoora Yousefi, Elvis Kahoro, Payam Karisani, Donghai Liang, Jeremy Sarnat, Eugene Agichtein
Most of the prior work relied on modeling pollutant concentrations collected from ground-based monitors and meteorological data for long-term forecasting of outdoor ozone, oxides of nitrogen, and PM2. 5.
no code implementations • 13 Sep 2022 • Anna Gottardi, Osman Ipek, Giuseppe Castellucci, Shui Hu, Lavina Vaz, Yao Lu, Anju Khatri, Anjali Chadha, Desheng Zhang, Sattvik Sahai, Prerna Dwivedi, Hangjie Shi, Lucy Hu, Andy Huang, Luke Dai, Bofei Yang, Varun Somani, Pankaj Rajan, Ron Rezac, Michael Johnston, Savanna Stiff, Leslie Ball, David Carmel, Yang Liu, Dilek Hakkani-Tur, Oleg Rokhlenko, Kate Bland, Eugene Agichtein, Reza Ghanadan, Yoelle Maarek
Since its inception in 2016, the Alexa Prize program has enabled hundreds of university students to explore and compete to develop conversational agents through the SocialBot Grand Challenge.
no code implementations • 2 May 2022 • Ali Ahmadvand, Negar Arabzadeh, Julia Kiseleva, Patricio Figueroa Sanz, Xin Deng, Sujay Jauhar, Michael Gamon, Eugene Agichtein, Ned Friend, Aniruddha
Current interactive systems with natural language interfaces lack the ability to understand a complex information-seeking request which expresses several implicit constraints at once, and there is no prior information about user preferences e. g.,"find hiking trails around San Francisco which are accessible with toddlers and have beautiful scenery in summer", where output is a list of possible suggestions for users to start their exploration.
1 code implementation • NAACL 2021 • Sergey Volokhin, Joyce Ho, Oleg Rokhlenko, Eugene Agichtein
We call our proposed method ConvExtr (Conversational Collaborative Filtering using External Data), which 1) infers a user{'}s sentiment towards an entity from the conversation context, and 2) transforms the ratings of {``}similar{''} external reviewers to predict the current user{'}s preferences.
no code implementations • 21 May 2021 • Jianghong Zhou, Eugene Agichtein
To support this dynamic ranking paradigm effectively, search result ranking must incorporate both the user feedback received, and the information displayed so far.
no code implementations • 21 May 2021 • Jianghong Zhou, Sayyed M. Zahiri, Simon Hughes, Khalifeh Al Jadda, Surya Kallumadi, Eugene Agichtein
Our experiments demonstrate the effectiveness of the DRLC model in learning to reduce bias in click logs, leading to improved modeling performance and showing the potential for using DRLC for improving Web search quality.
no code implementations • 21 May 2021 • Jianghong Zhou, Eugene Agichtein, Surya Kallumadi
In search and recommendation, diversifying the multi-aspect search results could help with reducing redundancy, and promoting results that might not be shown otherwise.
no code implementations • 23 Apr 2021 • Ali Ahmadvand, Sayyed M. Zahiri, Simon Hughes, Khalifa Al Jadda, Surya Kallumadi, Eugene Agichtein
Query categorization is an essential part of query intent understanding in e-commerce search.
no code implementations • 23 Apr 2021 • Ali Ahmadvand, Surya Kallumadi, Faizan Javed, Eugene Agichtein
Mapping a search query to a set of relevant categories in the product taxonomy is a significant challenge in e-commerce search for two reasons: 1) Training data exhibits severe class imbalance problem due to biased click behavior, and 2) queries with little customer feedback (e. g., tail queries) are not well-represented in the training set, and cause difficulties for query understanding.
no code implementations • NAACL 2021 • Iftah Gamzu, Hila Gonen, Gilad Kutiel, Ran Levy, Eugene Agichtein
This task is closely related to the task of Multi Document Summarization in the product reviews domain but differs in its objective and its level of conciseness.
no code implementations • EACL 2021 • Simone Filice, Giuseppe Castellucci, Marcus Collins, Eugene Agichtein, Oleg Rokhlenko
This common user intent is usually available through a {``}filter-by{''} interface on online shopping websites, but is challenging to support naturally via voice, as the intent of refinements must be interpreted in the context of the original search, the initial results, and the available product catalogue facets.
no code implementations • 18 Aug 2020 • Jason Ingyu Choi, Surya Kallumadi, Bhaskar Mitra, Eugene Agichtein, Faizan Javed
Retrieving all semantically relevant products from the product catalog is an important problem in E-commerce.
no code implementations • 2 Jun 2020 • Harshita Sahijwani, Jason Ingyu Choi, Eugene Agichtein
One of the key benefits of voice-based personal assistants is the potential to proactively recommend relevant and interesting information.
no code implementations • 2 Jun 2020 • Jason Ingyu Choi, Eugene Agichtein
To accomplish this, we report results obtained from a large-scale empirical study that measures the effects of prosodic modulation on user behavior and engagement across multiple conversation domains, both immediately after each turn, and at the overall conversation level.
1 code implementation • 2 Jun 2020 • Jason Ingyu Choi, Ali Ahmadvand, Eugene Agichtein
The insights from our study can enable more intelligent conversational systems, which could adapt in real-time to the inferred user satisfaction and engagement.
no code implementations • 28 May 2020 • Ali Ahmadvand, Harshita Sahijwani, Eugene Agichtein
A topic suggested by the agent should be relevant to the person, appropriate for the conversation context, and the agent should have something interesting to say about it.
1 code implementation • 28 May 2020 • Ali Ahmadvand, Jason Ingyu Choi, Eugene Agichtein
Furthermore, our results show that fine-tuning the CDAC model on a small sample of manually labeled human-machine conversations allows CDAC to more accurately predict dialogue acts in real users' conversations, suggesting a promising direction for future improvements.
1 code implementation • 28 May 2020 • Ali Ahmadvand, Harshita Sahijwani, Jason Ingyu Choi, Eugene Agichtein
Our results show that ConCET significantly improves topic classification performance on both datasets, including 8-10% improvements over state-of-the-art deep learning methods.
no code implementations • 28 May 2020 • Ali Ahmadvand, Surya Kallumadi, Faizan Javed, Eugene Agichtein
In this paper, we introduce Joint Query Intent Understanding (JointMap), a deep learning model to simultaneously learn two different high-level user intent tasks: 1) identifying a query's commercial vs. non-commercial intent, and 2) associating a set of relevant product categories in taxonomy to a product query.
no code implementations • 21 Apr 2020 • Payam Karisani, Joyce C. Ho, Eugene Agichtein
Mining social media content for tasks such as detecting personal experiences or events, suffer from lexical sparsity, insufficient training data, and inventive lexicons.
General Classification
Semi-Supervised Text Classification
+1
no code implementations • 8 Aug 2018 • Dana Sagi, Tzoof Avny, Kira Radinsky, Eugene Agichtein
One of the main challenges in ranking is embedding the query and document pairs into a joint feature space, which can then be fed to a learning-to-rank algorithm.
2 code implementations • 26 Feb 2018 • Payam Karisani, Eugene Agichtein
The first, critical, task for these applications is classifying whether a personal health event was mentioned, which we call the (PHM) problem.
no code implementations • ACL 2017 • Denis Savenkov, Eugene Agichtein
A critical task for question answering is the final answer selection stage, which has to combine multiple signals available about each answer candidate.