SISL - Signal and Interactive Systems Lab

Training machines to communicate, interact and benefit humanity.

News

Talk: "Conversational AI to Benefit Individuals" by Giuseppe Riccardi May 29th at 4pm (italian time) at Manchester Open NLPclub.

Research in human-machine dialogue (aka ConvAI) has been driven by the quest for open-domain, knowledgeable and multimodal agents. In contrast, the complex problem of designing , training and evaluating a conversational system and its components is currently reduced to a) prompting LLMs, b) coarse evaluation of machine responses and c) poor management of the affective signals. In this talk, we will review the current state-of-the-art in human-machine dialogue research and its limitations. We will present the most challenging frontiers of conversational AI when the objective is to create personal conversational systems that benefit individuals. In this context we will report experiments and RCT trials of so-called personal healthcare agents supporting individuals and healthcare professionals.

2025 Funded PhD and RA Openings

At the Signals and Interactive Systems Lab (University of Trento, Italy) we are looking for highly motivated and talented graduate students to join our research team and work on Conversational Artificial Intelligence.

Conversational Artificial Intelligence includes the following research areas:

- Natural Language Processing
- Conversational Modeling and Systems
- Machine Learning
- Affective Computing

Seminar – May 4, 2023 @ 11:00 am – Longitudinal Dialogues: Data Collection, Personalization, Dialogue Modelling, and Evaluation

Longitudinal Dialogues (LD) are the most challenging type of conversation for human-machine dialogue systems. LDs include the recollections of events, personal thoughts, and emotions specific to each individual in a sparse sequence of dialogue sessions. Dialogue systems designed for LDs should uniquely interact with the users over multiple sessions and long periods of time (e.g. weeks), and engage them in personal dialogues to elaborate on their feelings, thoughts, and real-life events.
In this talk, the speaker presents the process of designing and training dialogue models for LDs, starting from the acquisition of a multi-session dialogue corpus in the mental health domain, models for user profiling, and personalization, to fine-tuning SOTA Pre-trained #Language Models and the evaluation of the models using human judges.

All news

Our Vision

We do research in the analysis and interpretation of signals generated and interpreted in human dialogue and interaction.

We design and train machine learning models to interpret these signals and support the inference process of human-machine dialogue and interaction systems. The design of the human-dialogue system is motivated by the goal of benefiting humans and evaluation methodologies and processes are a high priority in our lab. Our research and achievements come from collaborating with fantastic international researchers, professionals, non-profit organizations, and companies of all sizes.

Our Team

Giuseppe Riccardi

Director

Carmelo Ferrante

Senior Research Engineer

Gabriel Roccabruna

PhD Student

Simone Alghisi

PhD Student

Eleonora Maria Aiello

Assistant Professor & Research Fellow

Mahed Mousavi

Assistant Professor & Research Fellow

Massimo Rizzoli

PhD Student

Olha Khomyn

Master student

Francesco Sorrentino

Bachelor Student

Open Thesis and Internships

Generative AI vs. Information Retrieval

Join our cutting-edge research to fine-tune and evaluate state-of-the-art large language models (LLMs) for personalized response generation, and compare their performance against traditional response selection models. Gain hands-on experience, and contribute to groundbreaking advancements in Multimodal Human-Machine Dialogue and Interaction. Ideal for students and interns passionate about AI and machine learning!

Are LLMs Knowledgeable?

If LLMs answer factual questions, does it mean they are knowledgeable? Join our research on evaluating the uncertainty and accuracy of state-of-the-art LLMs in retrieving factual knowledge from their parameters. By analyzing their learned information during training, the study aims to enhance the understanding and reliability of LLMs in real-world applications. Ideal for students passionate about uncertainty and model evaluation.

Publications

Filter:

All

Journals

Conferences

Books

Mousavi. M. S., Roccabruna G., Alghisi S., Rizzoli M., Ravanelli M. and Riccardi G., " Are LLMs Robust for Spoken Dialogues? " Proc. International Workshop on Spoken Dialogue Systems Technology, TALK Sapporo, 2024.
Mousavi. M. S., Tanaka, S., Roccabruna G., Yoshino K., Nakamura S. and Riccardi G., " What’s New? Identifying the Unfolding of New Events in a Narrative " ACL, Proc. 5th Workshop of Narrative Understanding, 2023.
Mousavi. M. S., Caldarella S. and Riccardi G., " Response Generation in Longitudinal Dialogues: Which Knowledge Representation Helps? " ACL, Proc. 5th Workshop on NLP for Conversational AI, 2023.
Roccabruna G., Mousavi. M. S. and Riccardi G., " Understanding Emotion Valence is a Joint Deep Learning Task" ACL, Proc. 13th Workshop on Computational Approaches to Subjectivity, Sentiment & Social Media Analysis 2023.
Yin M., Roccabruna G., Azad A. and Riccardi G., " Let's Give a Voice to Conversational Agents in Virtual Reality " Proc. INTERSPEECH, Demo Paper , VIDEO Dublin, 2023.
Mayor-Torres J., Medina-DeVillers S., Clarkson T., Lerner M.D., Riccardi G. , "Evaluation of interpretability for deep learning algorithms in EEG emotion recognition: a case study in autism ", Artificial Intelligence in Medicine, Volume 143, 2023 .
Mousavi M., Roccabruna, Lorandi M., Caldarella S. and Riccardi G., " Evaluation of Response Generation Models: Shouldn’t It Be Shareable and Replicable? " EMNLP Workshop Generation, Evaluation & Metrics (GEM), 2022.
Bayerl S., Roccabruna G., Chowdhury A. S., Ciulli T., Danieli M., Riedhammer K. and Riccardi G., " What can Speech and Language Tell us About the Working Alliance in Psychotherapy " Proc. INTERSPEECH, 2022.
Mousavi M., Roccabruna G., Tammewar A. Azzolin S. and Riccardi G., " Can Emotion Carriers Explain Automatic Sentiment Prediction? A Study on Personal Narratives, " ACL, 12th Workshop on Computational Approaches to Subjectivity, Sentiment & Social Media Analysis, 2022.
Roccabruna G., Azzolin S. and Riccardi G., " Multi-source Multi-domain Sentiment Analysis with BERT-based Models, " Language Resources and Evaluation Conference, 2022.
Tammewar A., Bayerl P. S., Braun F., Riedhammer K. and Riccardi G., " Annotation of Valence for Spoken Personal Narratives, " Language Resources and Evaluation Conference, 2022.
Mousavi M., Negro R. and Riccardi G., " An Unsupervised Approach to Extract Life-Events from Personal Narratives in the Mental Health Domain, " Eighth Italian Conference on Computational Linguistics, 2022.
Danieli M., Ciulli T., Mousavi M. Silvestri G., Barbato S. Di Natale L. and Riccardi G., "Assessing the Impact of Conversational AI in the Treatment of Stress and Anxiety in Ageing Persons: A Randomized Controlled Trial Study ", Journal of Medical Internet Research (JMIR) Mental Health, Vol 9, No 9, 2022 .
Mayor-Torres J., Clarkson T., Hauschild K., Luhmann C. C., Lerner D. M. and Riccardi G., "Facial emotions are accurately encoded in the brains of those with autism: A deep learning approach", Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, Volume 7, Issue 7, Pages 688-695 2022 .
Bayerl P. S., Tammewar A., Riedhammer K. and Riccardi G., " Detecting Emotion Carriers By Combining Acoustic and Lexical Representations, " IEEE Automatic Speech Recognition and Understanding Conference, 2021.
Torres M. J., Ravanelli M., Medina-Devilliers S., Lerner D. M. and Riccardi G., " Interpretable SincNet-based Deep Learning for Emotion Recognition in Individuals with Autism, " IEEE Conf. Engineering in Medicine and Biology, Conference, 2021.
Tammewar A., Cervone A. and Riccardi G., " Emotion Carrier Recognition from Personal Narratives " Proc. INTERSPEECH, 2021.
Mousavi M., Cervone A., Danieli M. and Riccardi G., " Would you like to tell me more? Generating a corpus of psychotherapy dialogues " NAACL, Workshop on NLP for Medical Conversations, 2021.
Roccabruna G., Cervone A. and Riccardi G., " Multifunctional ISO standard Dialogue Act tagging in Italian " Seventh Italian Conference on Computational Linguistics, 2021.
Danieli M., Ciulli T, Mousavi M. and Riccardi G., "A Participatory Design of Conversational Artificial Intelligence Agents for Mental Healthcare", Journal of Medical Internet Research (JMIR) Formative Research, Vol 5, No 12, 2021 .
Cervone A. and Riccardi G., " Is This Dialogue Coherent ? Learning From Dialogue Acts and Entities " SIGDial, Idaho*, 2020.
Tammewar A., Cervone A.,Eva-Maria Messner, Riccardi G., "Annotation of Emotion Carriers in Personal Narratives", Proc. Language Resources and Evaluation Conference , Marseille*, 2020.
Dubiel M., Cervone A., Riccardi G., " Inquisitive Mind: A Conversational News Companion " Proc. 1st International Conference on Conversational User Interface, Dublin, 2019.
Tammewar A., Cervone A., Messner E., Riccardi G., " Modeling User Context for Valence Prediction From Narratives " Proc. INTERSPEECH, Graz, 2019.
Coman C. A., Yoshino K., Murase Y., Nakamura S., Riccardi G., " An Incremental Turn-Taking Model For Task-Oriented Dialog Systems " Proc. INTERSPEECH, Graz, 2019.
Marinelli F., Cervone A., Tortoreto G., Stepanov E. A., Di Fabbrizio G., Riccardi G., " Active Annotation: Bootstrapping Annotation Lexicon and Guidelines for Supervised NLU learning " Proc. INTERSPEECH, Graz, 2019.
Tortoreto G., Stepanov E. A., Cervone A., Dubiel M., Riccardi G., " Affective Behaviour Analysis of On-line User Interactions: Are On-line Support Groups more Therapeutic than Twitter? " Association for Computational Linguistics Conference, Workshop on Social Media Mining for Health Applications, Florence, 2019.
Mayor Torres, J.M., Clarkson, T., Luhmann, C. C., Riccardi, G., Lerner, M.D., " Distinct but Effective Neural Networks for Facial Emotion Recognition in Individuals with Autism: A Deep Learning Approach " Annual Meeting of the International Society for Autism Research, Montreal, 2019.
Chowdhury S. A., Stepanov E. A., Danieli M. and Riccardi G.,"Automatic Classification of Speech Overlaps: Feature Representation and Algorithms", Computer Speech and Language, May , v. 55, pp. 145-167, 2019.
Alam F., Danieli and Riccardi G., "Automatic Labeling Affective Scenes in Spoken Conversations" , Cognitive Infocommunications, theory and applications ", R. Klempous et al. (eds.), Cognitive Infocommunications, Theory and Applications, Springer Verlag, 2019.
Gobbi J., Stepanov E. A. and Riccardi G., " Concept Tagging for Natural Language Understanding: Two Decadelong Algorithm Development " Fifth Italian Conference on Computational Linguistics , Turin, 2018.
Cervone A., Gambi E., Tortoreto G., Stepanov E. A., and Riccardi G., " Automatically Predicting User Ratings for Conversational Systems " Fifth Italian Conference on Computational Linguistics , Turin, 2018.
Ghosh A., Stepanov E. A., Mayor Torres, J.M., Danieli M. and Riccardi G., " HEAL: A Health Analytics Intelligent Agent Platform for the acquisition and analysis of physiological signals " IEEE 20th International Conference on e-Health Networking, Applications and Services (Healthcom), Ostrava, 2018.
Stepanov E. A., Lathuilierev S., Chowdhury S. A., Ghosh A., Vieriu R.D., Sebe N. and Riccardi G., " Depression Severity Estimation from Multiple Modalities " IEEE 20th International Conference on e-Health Networking, Applications and Services (Healthcom), Ostrava, 2018. EXCELLENT Paper AWARD
Cervone A., Stepanov E. A. and Riccardi G., " Coherence Models for Dialogue " Proc. INTERSPEECH, Hyderabad, 2018.
Mezza S., Cervone A., Stepanov E. A., Tortoreto G. and Riccardi G., " ISO-Standard Domain-Independent Dialogue Act Tagging for Conversational Agents " Conference on Computational Linguistics (COLING), Santa Fe, 2018.
Dias R., Conboy M. H., Gabany M. J., Clarke A. L. , Osterweil J. L., Avrunin S. G., Arney D., Goldman M. J., Riccardi G., Yule J. S., Zenati A. M., " Development of an Interactive Dashboard to Analyze Cognitive Workload of Surgical Teams During Complex Procedural Care " IEEE Conf. on Cognitive and Computational Aspects of Situation Management, Boston, 2018.
Dias RD, Conboy HM, Gabany JM, Clarke LA, Osterweil LJ, Arney D, Goldman JM, Riccardi G, Avrunin GS, Yule SJ, Zenati MA., " Intelligent Interruption Management System to Enhance Safety and Performance in Complex Surgical and Robotic Procedures" Proc. Workshop on OR 2.0 , Context-Aware Operating Theaters, Computer Assisted Robotic Endoscopy, Clinical Image-Based Procedures, and Skin Image Analysis , Grenada 2018
Mayor Torres, J.M., Clarkson, T., Stepanov E. A. , Luhmann C. C., Lerner, M.D., Riccardi, G., " Enhanced Error Decoding from Error-Related Potentials using Convolutional Neural Networks " IEEE Conf. Engineering in Biology and Medicine Society, Honolulu, 2018.
Mayor Torres, J.M., Libsack, E.J., Clarkson, T., Keifer, C.M., Riccardi, G., Lerner, M.D., "EEG-based Single trial Classification Emotion Recognition: A Comparative Analysis in Individuals with and without Autism Spectrum Disorder " Annual Meeting of the International Society for Autism Research, Rotterdam, 2018.
Riccardi, G. and Bangalore, S., " Automatic acquisition of phrase grammars for stochastic language modeling " Proc. 6th ACL Workshop on Very Large Corpora, Montreal, 2018.
Alam F., Danieli M. and Riccardi G.,"Annotating and Modeling Empathy in Spoken Conversations", Computer Speech and Language, July , v. 50, pp. 40-61, 2018.
Stepanov A. E., Chowdhury A. S., Bayer A. O., Ghosh A., Klasinas I., Calvo M., Sanchis E. and Riccardi G. , "Cross-Language Transfer of Semantic Annotation via Targeted Crowdsourcing: Task Design and Evaluation", Language Resources and Evaluation, 52: 341. https://doi.org/10.1007/s10579-017-9396-5 , Springer, 2018
Cervone A., Tortoreto G., Mezza S., Gambi E. and Riccardi G., "Roving Mind: a balancing act between open–domain and engaging dialogue systems ", 1st Alexa Prize Conference, Las Vegas, 2017.
Stepanov E. A., Lathuiliere S., Chowdhury S. A., Ghosh A., Vieriu R., Sebe N.and Riccardi G., "Depression Severity Estimation from Multiple Modalities", AVEC Challenge, 2017.
Cervone A., Stepanov E. A., Celli F., and Riccardi G., "Irony Detection: from the Twittersphere to the News Space", Fourth Italian Conference on Computational Linguistics , Rome, 2017.
Ghosh A., Stepanov E. A., Danieli M., and Riccardi G., "Are You Stressed? Detecting High Stress from User Diaries", IEEE International Conference on Cognitive Infocommunications, Debrecen, 2017.
Singla K., Stepanov A. E., Bayer A. O., Riccardi G. and Carenini G., "Automatic Community Creation for Abstractive Spoken Summarization", EMNLP 2017 Workshop on New Frontiers in Summarization, Copenhagen, 2017.
Chowdhury A. S., Stepanov E. A., Danieli M.. and Riccardi G., "Functions of Silences towards Information Flow in Spoken Conversation", EMNLP 2017 Workshop on Speech-Centric Natural Language Processing, Copenhagen, 2017
Bayer A. O., Stepanov A. E. and Riccardi G., "Towards End-to-End Spoken Dialogue Systems", Proc. INTERSPEECH , Stockholm, 2017
Tortoreto G., Ghosh A., Stepanov E. A., Danieli M.. and Riccardi G., " Affective Behaviour Analysis of User Interactions in Support Web Group", European Congress of Psychology, Amsterdam , 2017.
Chowdhury A. S. and Riccardi G.,"A Deep Learning Approach To Modeling Competitiveness In Spoken Conversations", ICASSP, New Orleans, 2017.
Mogessie A. M., Ronchetti M., Riccardi G., "Exploring the Role of Online Peer-Assessment as a Tool of Early Intervention", In Wu, Gennari, Huang, Xie and Cao Y. (eds) Emerging Technologies for Education, Lecture Notes in Computer Science, vol 10108, pp. 635-644, 2017.
Celli F., Stepanov E. A., Poesio M. and Riccardi G., "Predicting Brexit: Classifying Agreement is Better than Sentiment and Pollsters" , PEOPLES Workshop at , Osaka 2016.
Alam F., Celli F., Stepanov E. A., Ghosh A. and Riccardi G., "The Social Mood of News: Self-reported Annotations to Design Automatic Mood Detection Systems" , PEOPLES Workshop at Conference on Computational Linguistics (COLING), Osaka 2016.
Alam F. , Chowdhury A. S. , Danieli M.. and Riccardi G., "How Interlocutors Coordinate with each other within Emotional Segments?", Conference on Computational Linguistics (COLING), Osaka, 2016.
Alam F. , Danieli M.. and Riccardi G., " Can We Detect Speakers' Empathy? A Real-Life Case Study", IEEE International Conference on Cognitive Infocommunications, Wrocław, 2016.
Mogessie M., Ronchetti M. and Riccardi G.,, "Exploring the Role of Online Peer-Assessment as a Tool of Early Intervention", International Conference on Web-based Learning, Rome, 2016.
Chowdhury A. S. , Stepanov E. A. and Riccardi G., "Predicting User Satisfaction from Turn-Taking in Spoken Conversations", INTERSPEECH, San Francisco, 2016.
Mayor J. M., Ghosh A., Stepanov E. A. and Riccardi G., "HEAL-T: An Efficient PPG-based Heart-Rate And IBI Estimation Method During Physical Exercise", EUSIPCO, Budapest, 2016
Celli F., Stepanov E. A. , Riccardi G, "Tell me who you are, I’ll tell whether you agree or disagree: Prediction of agreement/disagreement in news blogs", IJCAI, Workshop on Natural Language Processing Meets Journalism, New York, 2016.
Stepanov E. A. and Riccardi G., "The UniTN End-To-End Discourse Parser in CoNLL 2016 Shared Task", Conference on Computational Natural Language Learning, Berlin, 2016.
Schenk N., Chiarcos C., Donandt K., Rönnqvist S., Stepanov E. A. and Riccardi G., "Do We Really Need All Those Rich Linguistic Features? A Neural Network-Based Approach to Implicit Sense Labeling", Conference on Computational Natural Language Learning, Berlin, 2016.
Mogessie M., Ronchetti M. and Riccardi G.,"Predicting Student Progress from Peer-Assessment Data", Educational Data Mining Conference Raleigh, USA,2016
Danieli M., Ghosh A., Berra E., Fulcheri C., Rabbia F., Testa E., Veglio F., Riccardi G., "Automatically classifying essential arterial hypertension from physiological and daily life stress responses." ESH 2016 – The 26th European Meeting on Hypertension and Cardiovascular Protection, Paris, France, June 10 -13 2016.
Mayor J. M., Stepanov E. A. and Riccardi G.,"EEG Semantic Decoding Using Deep Neural Networks", Workshop on Concepts, Actions and Objects, Rovereto, 2016.
Celli F., Riccardi G. and Alam F., "Multilevel Annotation of Agreement and Disagreement in Italian News Blogs", Proc. Language Resources and Evaluation Conference , Portroz, 2016.
Chowdhury A. S., Stepanov E. A. and Riccardi G., "Transfer of Corpus-Specific Dialogue Act Annotation to ISO Standard: Is it worth it ?", Proc. Language Resources and Evaluation Conference , Portroz, 2016.
Danieli M., Balamurali A. R., Stepanov E. A., Favre B., Bechet F. and Riccardi G., "Summarizing Behaviors: An Experiment on the Annotation of Call-Centre Conversations", Proc. Language Resources and Evaluation Conference , Portroz, 2016.
Riccardi G., Stepanov E. A. and Chowdhury A. S. "Discourse Connective Detection in Spoken Conversations", ICASSP, Shanghai, 2016.
Bayer A. O. and Riccardi G.,"Semantic language models with deep neural networks", Computer Speech and Language, May , v. 40, pp. 1-22, 2016.
Riccardi G., Bechet F., Danieli M., Favre B., Gaizauskas R., Kruschwitz and Poesio M., "The SENSEI Project: Making Sense of Human Conversations", Lecture Notes on Artificial Intelligence, J.F. Quesada et al. ( Eds) , vol. 9577, pp. 10-33, 2016.
Parodi S, Riccardi G, Castagnino N, Tortolina L, Maffei M, Zoppoli G, Nencioni A, Ballestrero A, Patrone F : "Systems Medicine in Oncology: Signaling-Networks Modeling and New Generation Decision-Support Systems", in Methods in Molecular Biology, Vol. 1386, Schmitz U and Wolkenhauer O (Eds): Systems Medicine, Springer , 2016.
Stepanov E. A., Favre B., Alam F., Chowdhury A. S., Singla K., Trione J., Bechet F. and Riccardi G., "Automatic Summarization of Call-Center Conversations", IEEE ASRU, Scottsdale, 2015. ( Demo )
Danieli M., Ghosh A, Berra E., Testa E., Rabbia F., Veglio F. and Riccardi G., "Comprendere l’Ipertensione Arteriosa Essenziale A Partire da Costrutti Psicologici e Segnali Fisiologici", XXXI Congresso Societa’ Italiana Ipertensione Arteriosa, Bologna, 2015. (Poster)
Danieli M. , Riccardi G. and Alam F., "Emotion Unfolding and Affective Scenes: A Case Study in Spoken Conversations" , ICMI Workshop on Representations and Modelling for Companion Systems, Seattle, 2015. VIDEO
Stepanov E. A. and Riccardi G., "Sentiment Polarity Classification with Low-level Discourse-based Features", Proc. Italian Conference on Computational Linguistics , Trento, 2015.
Favre B., Stepanov E. A., Trione J. , Bechet F. and Riccardi G., "Call Centre Conversation Summarization: A Pilot Task at Multiling 2015", SigDial, Prague, 2015.
Mogessie M, Riccardi G. and Ronchetti M., "Predicting Students’ Final Exam Scores from their Course Activities", IEEE Frontiers in Education, El Paso ( USA), 2015.
Bayer A. O. and Riccardi G., "Deep Semantic Encodings for Language Modeling", Proc. INTERSPEECH , Dresden, 2015
Chowdhury A. S,, Danieli M. and Riccardi G., "The Role of Speakers and Context in Classifying Competition in Overlapping Speech", Proc. INTERSPEECH , Dresden, 2015
Chowdhury A, Calvo M., Ghosh A., Stepanov E. A., Bayer A. O., Riccardi G., Garcia F. and Sanchis E.,"Selection and Aggregation Techniques for Crowdsourced Semantic Annotation Task", Proc. INTERSPEECH , Dresden, 2015
Ghosh A, Danieli M. and Riccardi G., "Detection of Essential Hypertension with Physiological Signals from Wearable Devices", IEEE Conf. Engineering in Biology and Medicine Society, Milan, 2015.
Ghosh A, Danieli M. and Riccardi G., "Annotation and Prediction of Stress and Workload from Physiological and Inertial Signals", IEEE Conf. Engineering in Biology and Medicine Society, Milan, 2015.
Stepanov E. A., Bayer A. O. and Riccardi G., "The UniTN Discourse Parser in CoNLL 2015 Shared Task", CoNLL, Bejiing, 2015. Runner-up Discurse Parsing Shared-Task
Chowdhury A, Danieli M. and Riccardi G., "Annotating and Categorizing Competition in Overlap Speech", ICASSP, Brisbane, 2015.
Celli F., Ghosh A., Alam F. and Giuseppe Riccardi, "In the mood for Sharing Contents: Emotions, personality and interaction styles in the diffusion of news", Information Processing and Management, Nov 2015,
Vinciarelli A., Esposito A., Andre’ E., Bonin F., Chetouani M., Cohn F. J., Cristani M., Fuhrmann F., Gilmartin E., Hammal Z., Heylen D., Kaiser R., Koutsombogera M., Potamianos A., Renals S., Riccardi G., Salah A. G. "Open Challenges in Modelling, Analysis and Synthesis of Human Behaviour in Human-Human and Human-Machine Interactions", Cognitive Computation, pp. 1-17, April 2015.
Danieli M. , Riccardi G. and Alam F., "Annotation of Complex Emotions in Real-Life Dialogues: The Case of Empathy" , Italian Conference on Computational Linguistics Pisa, 2014.
Celli F., Riccardi G. and Ghosh A., "CorEA: Italian News Corpus with Emotions and Agreement", Conferenza di Linguistica Computazionale, Pisa, 2014.
Bayer A. O. and Riccardi G., "Semantic Language Models for Automatic Speech Recognition", IEEE/ACL Workshop on Spoken Language Technology, Lake Tahoe, 2014
Riccardi G., "Towards Healthcare Personal Agents", ACM International Conference on Multimodal Interaction, Workshop on Roadmapping the Future of Multimodal Interaction Research including Business Opportuinities and Challenges, Istanbul 2014.
Chowdhury A, and Riccardi G., "Unsupervised Recognition and Clustering of Speech Overlaps in Spoken Conversations", Workshop on Speech, Language and Audio in Multimedia, Penang, Malaysia, 2014.
Chowdhury A, S., Ghosh A, Stepanov E. A., Bayer A. O., Riccardi G. and Klasinas I., "Cross-Language Transfer of Semantic Annotation via Targeted Crowdsourcing", Proc. INTERSPEECH, Singapore, 2014.
Ghosh A. and Riccardi G. , "Recognizing Human Activities from Smartphone Signals", ACM International Conference on Multimedia, Orlando, 2014.
Alam F. and Riccardi G., "Predicting Personality Traits using Multimodal Information", ACM International Conference on Multimedia, Workshop on Computational Personality Recognition, Orlando, 2014.
Mogessie M., Riccardi G. and Ronchetti M., "A Web Based Peer Interaction Framework for Improved Assessment and Supervision of Students", World Conference on Educational Multimedia, Hypermedia and Telecommunications, Tampere, 2014.
Stepanov E. A. and Riccardi G., "Towards Cross-Domain PDTB-Style Discourse Parsing", EACL Workshop on Health Text Mining and Information Analysis, Gothenburg, 2014
Alam F. and Riccardi G., "Fusion of Acoustic, Linguistic and Psycholinguistic Features for Speaker Personality Traits Recognition" , ICASSP, Florence, 2014.
Stepanov E. A., Riccardi G. and Bayer A. O., "The Development of the Multilingual LUNA Corpus for Spoken Language System Porting", LREC , Reykjavik, 2014.
Griol D., Callejas Z., Lopez-Cozar R. and Riccardi G. , "A Domain-Independent Statistical Methodology for Dialog Management in Spoken Dialog Systems", Computer Speech and Language, v. 28, pp. 743-768, 2014. ISCA Best Paper Award
Stepanov E. A., Kashkarev I., Bayer A. O., Riccardi G. and Ghosh A., "Language Style and Domain Adaptation for Cross-Language Porting", IEEE Workshop on Automatic Speech Recognition and Understanding, Olomouc, 2013.
Bayer A. O. and Riccardi G., "On-line Adaptation of Semantic Models for Spoken Language Understanding", IEEE Workshop on Automatic Speech Recognition and Understanding, Olomouc, 2013.
Stepanov E. A. and Riccardi G., "Comparative Evaluation of Argument Extraction Algorithms in Discourse Relation Parsing", International Conference on Parsing Technologies, Nara, 2013.
Bayer A. O. and Riccardi G., "Instance-Based On-Line Language Model Adaptation", Proc. INTERSPEECH, Lyon, 2013.
Alam F. and Riccardi G., "Comparative Study of Speaker Personality Traits Recognition in Conversational and Broadcast News Speech", Proc. INTERSPEECH, Lyon, 2013.
Riccardi G., Ghosh A., Chowdhury S. A. and Bayer A. O. , "Motivational Feedback in Crowdsourcing: a Case Study in Speech Transcriptions", Proc. INTERSPEECH, Lyon, 2013.
Alam F. ,Stepanov E. A. and Riccardi G., "Personality Traits Recognition on Social Network - Facebook", ICWSM, Workshop on Computational Personality Recognition, Boston, 2013
Garcia F., Hurtado L. F., Segarra E., Sanchis E. and Riccardi G., "Combining Machine Translation Systems for Spoken Language Understanding Portability", IEEE/ACL Workshop on Spoken Language Technology, Miami, 2012
Bayer A. O. and Riccardi G., "Joint Language Models for Automatic Speech Recognition and Understanding", IEEE/ACL Workshop on Spoken Language Technology, Miami, 2012
Ghosh S., Riccardi G. and Johansson R.,"Global Features for Shallow Discourse Parsing", SIGDial, Seoul, 2012.
Riccardi G., Cimiano P., Potamianos A, and Unger C., "Up From Limited Dialog Systems!", NAACL, Workshop on Future Directions and Needs in Spoken Dialog Community, Montreal, 2012.
Ghosh S., Johansson R., Riccardi G. and Tonelli S.,"Improving the Recall of a Discourse Parser by Constraint-Based Postprocessing", LREC Istanbul, 2012.
Ivanov A. V. and Riccardi G.,, " Kolmogorov-Smirnov Test for Feature Selection in Emotion Recognition From Speech", ICASSP, Kyoto, 2012.
Dinarelli M., Moschitti A. and Riccardi G., `Discriminative Reranking for Spoken Language Understanding,’’ IEEE Trans. on Audio, Speech and Language Processing, vol. 20, no. 2, pp. 526-539, 2012.
Stepanov E. A. and Riccardi G., "Detecting General Opinions from Customer Surveys", IEEE International Conference on Data Mining, SENTIRE Workshop, Vancouver, 2011.
Ghosh S., Johansson R., Riccardi G. and Tonelli S., "Shallow Discourse Parsing with Conditional Random Fields", International Joint Conference on Natural Language Processing, Chiang Mai, Thailand, 2011
Ghosh S., Tonelli S., Riccardi G. and Johansson R., "End-to-End Discourse Parser Evaluation", IEEE International Conference on Semantic Computing, Menlo Park, USA, 2011
Moschitti A., Chu-Carroll J., Patwardhan S., Fan J. and Riccardi G., " Using Syntacting and Semantic Structural Kernels for Classifying Definition Questions in Jeopardy!", EMNLP, Edinburgh, 2011.
Ivanov A. V., Riccardi G., Sporka A. J. and Franc J., " Recognition of Personality Traits from Human Spoken Conversations", Proc. INTERSPEECH, Florence, 2011.
Francesconi F., Ghosh A., Riccardi G., Ronchetti M. and Vagin A., " Collecting Life Logs for Experience Based Corpora", Proc. INTERSPEECH, Florence, 2011.
Quarteroni S., Ivanov A. V. and Riccardi G., " Simultaneous Dialog Act Segmentation and Classification from Human-Human Spoken Conversations ", ICASSP, Prague, 2011
Varges S., Riccardi G., Quarteroni S. , and Ivanov A. V., " POMDP Concept Policies and Task Structures for Hybrid Dialog Management" , ICASSP, Prague, 2011
Ludwig B., Haecker M., Schaeller R., Zenker B., Ivanov A. V. and G. Riccardi, "Tell Me Your Needs: Assistance for Public Transport Users", ACM SIGCHI Symposium on Engineering Interactive Computing Systems, Pisa, 2011.
Han S., Dinarelli M., Raymond C., Lefevre F., Lehnen, P., De Mori R., A. Moschitti, Ney H. and Riccardi G., `Comparing Stochastic Approaches to Spoken Language Understanding in Multiple Languages,'' IEEE Trans. on Audio, Speech and Language Processing, vol. 19, no. 6, pp. 1569-1583, 2011.
Hakkani-Tur D. and Riccardi G., "The Data Selection Problem", Book chapter in "Spoken Language Understanding" John Wiley & Sons, LTD, 2011
Dinarelli M, Moschitti A. and Riccardi G., "Hypotheses Selection for Re-Ranking semantic Annotation", IEEE/ACL Workshop on Spoken Language Technology, San Francisco, 2010.
Quarteroni S., Gonzalez M., Riccardi G. and Varges S., "Combining User Intention and Error Modeling for Statistical Dialog Simulators", Proc. INTERSPEECH, Makuhari, 2010.
Quarteroni S. and Riccardi G., Classifying Dialog Acts in Human-Human and Human-Machine Spoken Conversations", Proc. INTERSPEECH, Makuhari, 2010
Varges S., Quarteroni S. , Riccardi G. and Ivanov A. V. , "Investigating Clarification Strategies in a Hybrid POMDP Dialog Manager", SIGDial, Tokyo, 2010
Gonzalez M., Quarteroni S., Riccardi G. and Varges S., Cooperative User Models in Statistical Dialog Simulators", SIGDial 2010, Tokyo 2010.
Dinarelli M.,Stepanov E. A.,Varges S. and Riccardi G. "The LUNA Spoken Dialogue System: Beyond Utterance Classification". ICASSP, Dallas, 2010.
Ivanov A. V., Riccardi G. , Ghosh S.,Tonelli S. and E. Stepanov, "Acoustic Correlates of Meaning Structure in Conversational Speech", Proc. INTERSPEECH, Makuhari, 2010.
Ivanov A. V., Riccardi G., "Automatic Turn Segmentation in Spoken Conversations", Proc. INTERSPEECH, Makuhari, 2010.
Nguyen T. T., Moschitti A. and Riccardi G., "Kernel-based Reranking for Named-Entity Extraction", Conference on Computational Linguistics (COLING), Bejing, 2010,
Sara Tonelli S., Riccardi G., Prasad R. and Joshi A. "Annotation of Discourse Relations for Conversational Spoken Dialogs", LREC Valletta, 2010.
Quarteroni S., Dinarelli M. and Riccardi G., "Ontology-Based Grounding of Spoken Language Understanding", IEEE Workshop on Automatic Speech Recognition and Understanding, Merano, 2009.
Varges S., Riccardi G., Quarteroni S., Ivanov V., "The Exploration/Exploitation Trade-Off in Reinforcement Learning for Dialogue Management", IEEE Workshop on Automatic Speech Recognition and Understanding, Merano, 2009.
Varges S., Riccardi G., Quarteroni S., Ivanov V. I. and Roberti P. "Leveraging POMDPs trained with User Simulations and Rule-Based Dialog Management in a SDS" SIGDIAL, Demo Session, London, 2009.
Griol D. Riccardi G. and Sanchis E., "A Statistical Dialog Manager for the LUNA Project", Proc. INTERSPEECH, Brighton, 2009.
Griol D. Riccardi G. and Sanchis E., " Learning the Structure of Human-Computer and Human-Human Spoken Conversations", Proc. INTERSPEECH, Brighton, 2009.
Quarteroni S., Riccardi G. and Dinarelli M., "What's in an Ontology for Spoken Language Understanding",Proc. INTERSPEECH, Brighton, 2009.
Dinarelli M, Moschitti A. and Riccardi G., "Concept Segmentation and Labeling for Conversational Speech", Proc. INTERSPEECH, Brighton, 2009.
Sporka A. J., Jakub F. And Riccardi G., "Can Machines Call People?- User Experience While Answering Telephone Calls Initiated by Machine", CHI, Boston, 2009
Varges S., Quarteroni S., Riccardi G., Ivanov V. I. and Roberti P., "Combining POMDPs trained with User Simulations and Rule-based Dialogue Management in a Spoken Dialogue System" ACL, Demo Session, Singapore, 2009.
Dinarelli M, Moschitti A. and Riccardi G., "Re-Ranking Models Based on Small Training Data for Spoken Language Understanding", EMNLP, Singapore, 2009.
Nguyen T. T., Moschitti A. and Riccardi G., "Convolution Kernels on Constituent, Dependency and Sequential Structures for Relation Extraction", EMNLP, Singapore, 2009.
Coppola B., Moschitti A., Riccardi G., "Shallow Semantic Parsing for Spoken Language Understanding" NAACL, Boulder, Colorado, 2009.
Varges S., Riccardi G., Quarteroni S., Ivanov V. I. and Roberti P. "On-Line Strategy Computation in Spoken Dialog Systems" ICASSP, Demo Session, Singapore, 2009. VIDEO
Dinarelli M., Quarteroni S., Tonelli S., Moschitti A. and Riccardi G., "Annotating Spoken Dialogs: from Speech Segments to Dialog Acts and Frame Semantics"EACL Workshop on Semantic Representation of Spoken Language -Athens, 2009.
Dinarelli M., Moschitti A. and Riccardi G., "Re-Ranking Models For Spoken Language Understanding", EACL Conference, Athens, 2009.
Baggia P., Cutugno F., Danieli M., Pieraccini R., Quarteroni S., Riccardi G. and Roberti P., "The Multisite 2009 EVALITA Spoken Dialog System Evaluation", AI*IA EVALITA Workshop, Brescia, 2009.
Riccardi G., Mosca N., Roberti P. and Baggia P., "The Voice Multimodal Application Framework" AVIOS, San Diego, 2009. VIDEO
Bisazza A., Dinarelli M., Quarteroni S., Tonelli S., Moschitti A., Riccardi G., "Semantic Annotations For Conversational Speech: from speech transcriptions to predicate argument structures". IEEE/ACL Workshop on Spoken Language Technology, Goa, 2008
Dinarelli M., Moschitti A., Riccardi G., "Joint Generative And Discriminative Models For Spoken Language Understanding". IEEE/ACL Workshop on Spoken Language Technology, Goa, 2008
Coppola B., Moschitti A., Tonelli S., Riccardi G., "Automatic FrameNet-Based Annotation of Conversational Speech". IEEE/ACL Workshop on Spoken Language Technology, Goa, 2008
Sebastian V, Riccardi G. and Quarteroni S.,"Persistent Information State in a Data-Centric Architecture " SIGdial Workshop on Discourse and Dialogue, Columbus, 2008.
Raymond C. and Riccardi G.,``Learning with Noisy Supervision for Spoken Language Understanding'' ICASSP, Las Vegas,2008.
Rodríguez K., Raymond C. and Riccardi G., `` Active Annotation in the LUNA Italian Corpus of Spontaneous Dialogues'' Language Resources and Evaluation (LREC) Conference, Marrakech, 2008.
De Mori R., Bechet F., Hakkani-Tur D., McTear M., Riccardi G. and Tur. G., ``Spoken Language Understanding'', IEEE Signal Processing Magazine vol. 25, pp.50-58 ,2008.
Riccardi G., Baggia P. and Roberti P. "Spoken Dialog Systems: From Theory to Technology", Workshop Toni Mian, Padua, 2007.
Varges S. and Riccardi G., "A Data-Centric Architecture for Data-Driven Spoken Dialog Systems", IEEE Workshop on Automatic Speech Recognition and Understanding, Kyoto, 2007.
Moschitti A., Riccardi G. and Raymond, "Spoken Language Understanding with Kernels for Syntactic/Semantic Structures", IEEE Workshop on Automatic Speech Recognition and Understanding, Kyoto, 2007.
Raymond C., Riccardi G. "Generative and Discriminative Algorithms for Spoken Language Understanding", Proc. INTERSPEECH, Antwerp, 2007.
Rodríguez K. J, Dipper S., Götze M., Poesio P., Riccardi G., Raymond C., Wisniewska J., "Standoff Coordination for Multi-Tool Annotation in a Dialogue Corpus", ACL LAW Workshop, Prague, 2007.
Fogarolli A., Riccardi G, and Ronchetti M., "Searching for in Information in Video Lectures", ED-MEDIA Conference, Vancouver, 2007.
Raymond C., Riccardi G., Rodríguez K. J. and Wisniewska J., "The LUNA Corpus: an Annotation Scheme for a Multi-domain Multi-lingual Dialogue Corpus", 11th Workshop on the Semantics and Pragmatics of Dialogue (DECALOG'07), Rovereto, 2007.
Riccardi G. and Ronchetti M. , ``NEEDLE: Next Generation Digital Libraries, Conference of Associazione Italiana Scienze della Voce (AISV), Trento 2006.
Topkara M., Riccardi G., Hakkani-Tür D. Atallah M. J., ``Natural Language Watermarking: Research Challenges and Applications, SPIE Conference, San Diego, January, 2006.
Riccardi G. and Baggia P., "Spoken Dialog Systems: From Theory to Technology" SIGNUM, pp.9-20, vol. 2, Edizione della Normale di Pisa, 2006.
Hakkani-Tur D., Riccardi G. and Tur G., ``An Active Approach to spoken Language Processing'', ACM Transactions on Speech and Language Processing, Vol. 3, No. 3, pp 1-31, 2006.
Hakkani-Tur D., Bechet F., Riccardi, G. and Tur G., ``Beyond ASR 1-Best: Using Word Confusion Network'', Computer Speech and Language, volume 20, Issue 4, pp. 495-514, 2006.
Gupta N., Tur G., Hakkani-Tur D., Bangalore S, Riccardi G. and Rahim M., ``The AT&T Spoken Language Understanding System,'' IEEE Trans. on Audio, Speech and Language Processing, volume 14, Issue 1, pp. 213-22, 2006.
Liscombe J. , Riccardi G. and Hakkani-Tür D., ``Using Context to Improve Emotion Detection in Spoken Dialog Systems'', Proc. INTERSPEECH, Lisbon, Sept. 2005
Hakkani-Tur D., Tur G., Riccardi, G. and Kim H. K., ``Error Prediction in Spoken Dialog: from Signal-to-Noise Ratio to Semantic Confidence Scores'', IEEE ICASSP, Philadelphia, March 2005.
Goffin, V., Allauzen, C., Bocchieri E., Hakkani-Tur D., Ljolje A., Parthasarathy S., Rahim M., Riccardi G. and Saraclar, M.,``The AT&T WATSON Speech Recognizer'', IEEE ICASSP, Philadelphia, March 2005.
Riccardi, G. and Hakkani-Tur D., ``Grounding Emotions in Human-Machine Conversational Systems '', Lecture Notes in Computer Science, Springer-Verlag, , pp. 144 – 154, 2005.
Riccardi, G. and Hakkani-Tur D., ``Active Learning: Theory and Applications to Automatic Speech Recognition,'' IEEE Trans. on Speech and Audio, vol. 13, n.4 , pp. 504-511, 2005. IEEE Signal Processing Best Paper Award
Potamianos A., Narayanan S and Riccardi, G. , ``Adaptive Categorical Understanding for Spoken Dialogue Systems'' IEEE Trans. on Speech and Audio, vol. 13, n.3 , pp. 321-329, 2005.
Bechet F., Riccardi G.and Hakkani-Tur D., Mining Spoken dialogue Corpora for system Evaluation and Modeling,'', EMNLP Conference, Barcelona, 2004.
Hakkani-Tur D., Tur G., Rahim M. and Riccardi G.,``Unsupervised and Active Learning in Automatic Speech Recognition for Call Classification '', ICASSP, Montreal, May 2004.
Tur G., Hakkani-Tur D. and Riccardi G., ``Extending Boosting For Call Classification Using Word Confusion Networks '', IEEE ICASSP, Montreal, May 2004.
Karahan M., Hakkani-T|r D.,. Riccardi G.and Tur G., ``Combining Classifiers for Spoken Language Understanding. '', IEEE ASRU, U.S. Virgin Islands, Dec., 2003
Bechet F., Riccardi G. and Hakkani-T|r D., "Multi-channel Sentence Classification for Spoken Dialogue Modeling", EUROSPEECH, Geneve, Switzerland, Sept. 2003.
Riccardi G.and Hakkani-T|r D.,``Active and Unsupervised Learning for Automatic Speech Recognition '', EUROSPEECH, Geneve, Switzerland, Sept. 2003.
Hakkani-T|r D. and Riccardi G., `` A General Algorithm for Word Graph Decomposition, '', IEEE ICASSP, Honk-Kong, 2003
Gorin, A. L., Alonso T., Abella A., Riccardi, G. and Wright, J. H., ``Semantic Information Processing of Spoken Language - How May I Help You?(sm)'' in Pattern recognition in Speech and Language Processing, CRC Press, 2003.
Bangalore S., Murdock V., G. Riccardi, `` Bootstrapping Bilingual Data Using Consensus Translation for a Multilingual Instant Messaging System '', Proc. Conference on Computational Linguistics (COLING), Taipei, 2002.
Gokhan T., Wright J., Gorin A., Riccardi G., Tur H., `` Improving Spoken Language Understanding Using Word Confusion Networks', ICSLP, Denver, 2002.
Falavigna D., Gretter R. and Riccardi G., `` Acoustic and Word Lattice Based Algorithms for Confidence Scores, '' Proc. ICSLP, Denver, 2002.
Fabbrizio G., Dutton D., Gupta N., Hollister B., Rahim M., Riccardi G., Schapire R. and Schroeter J., `` AT&T Help Desk, '' Proc. ICSLP, Denver, 2002
Rochery M., Schapire R., Rahim M., Gupta G., Riccardi G., Bangalore S., Alshawi H and Douglas S., `` Combining Prior Knowledge and Boosting for Call Classification in Spoken Language Dialogue, '' Proc. IEEE ICASSP, Orlando, 2002
Tur D., Riccardi G. and Gorin A. L., ``Active Learning for Automatic Speech Recognition, '' Proc. IEEE ICASSP, Orlando, 2002
Bangalore S. and G. Riccardi, ``Stochastic Finite-State Models for Spoken Language Machine Translation'', Machine Translation , vol 17, n. 3, pp. 165-184, 2002 (Invited paper).
Gorin A, Abella A, Alonso T., Riccardi G., and Wright J., `` Automated Natural Spoken Dialog, '' IEEE Computer, vol. 35, n.4, pp. 51-56, April, 2002 (invited paper)
Bangalore S.and Riccardi G., ``A Finite State Approach to Machine Translation, '' Proc. IEEE ASRU, Madonna di Campiglio, Italy, 2001 (invited paper)
Bangalore S., Bordel G. and Riccardi G., ``Computing Consensus Translation from Multiple Machine Translation Systems, '' Proc. IEEE ASRU, Madonna di Campiglio, Italy, 2001
Bangalore, S. and Riccardi, G., ``A Finite-State Approach to Machine Translation, '' Proc. NAACL Conference, Pittsburgh, June, 2001
Gretter R. and Riccardi G., ``On-line learning of language models with word error probability distributions,'' Proc. IEEE ICASSP 2001, Salt Lake City, Utah, 7-11 May 2001.
Rose R. C., Yao H., Riccardi G. and Wright J. H., ``Integration of Utterance Verification with Statistical Language Modeling and Spoken Language Understanding, '' Speech Communication, 34, pp. 321-331, 2001.
Rahim M., Riccardi G., Saul L., Wright J., Buntschuh B. and Gorin A. L., ``Robust Numeric Recognition in Spoken Language Dialogue, '' Speech Communication, 34, pp. 195-212, 2001.
Bangalore, S. and Riccardi, G., ``Finite-state models for lexical reordering in spoken language translation,''Proc. ICSLP, Beijing, Oct. 2000.
Riccardi G. , ``On-line Learning of Acoustic and Lexical Units for Domain-Independent ASR,''Proc. ICSLP, Beijing, Oct. 2000.
Petrovska-Delacretaz, D, Gorin A. L., Riccardi G. and Wright J. H. , ``Detecting Acoustic Morphemes in Lattices for Spoken Language Understanding'', Proc. ICSLP, Beijing, Oct. 2000.
Rahim M., Pieraccini R., Eckert W, Levin E.,Di Fabbrizio G., Riccardi G., Kamm C., Narayanan S., ``A Spoken Dialog System for Conference/Workshop Services'', Proc. ICSLP, Beijing, Oct. 2000.
Gorin, A. L., Wright, J. H., Riccardi, G., Abella, A. and Alonso, T., ``Semantic information processing of spoken language,'' ATR Workshop on Multi-Lingual Speech Communication, Oct. 2000.
Bangalore, S. and Riccardi, G., ``Stochastic finite-state models for spoken language machine translation,'' Proc. Workshop on Embedded Machine Translation Systems, NAACL, pp. 52-59, Seattle, May 2000.
Riccardi, G. and Gorin, A. L., ``Spoken language adaptation over time and state in a natural spoken dialog system,'' IEEE Trans. on Speech and Audio, vol. 8, pp. 3-10, 2000.
Rahim M., Pieraccini R., Eckert W, Levin E.,Di Fabbrizio G., Riccardi G., Lin C., Kamm C., ``W99- A Spoken Dialog System for the ASRU99 Workshop,'' Proc. IEEE ASRU, Keystone, Colorado, Dec. 1999..
Riccardi G,, Bangalore S. and Sarin, P., ``Learning head-dependency relations from unannotated corpora,'' Proc. IEEE ASRU, Keystone, Colorado, Dec. 1999.
Gorin, A. L., Petrovska-Delacretaz, D., Riccardi, G. and Wright, J. H., ``Learning spoken language without transcription,'' Proc.IEEE ASRU Workshop, Colorado, 1999.
Conkie, A., Riccardi, G. and Rose, R. C., ``Prosody recognition from speech utterances using acoustic and linguistic based models of prosodic events,'' Proc. EUROSPEECH, Budapest, Hungary, Sept. 1999.
Potamianos, A., Riccardi, G. and Narayanan, S., ``Categorical understanding using statistical N-gram models,'' Proc. EUROSPEECH, Budapest, Hungary, Sept. 1999.
Rose, R. C. and Riccardi, G., ``Automatic speech recognition using acoustic confidence conditioned language models,'' Proc. EUROSPEECH, Budapest, Hungary, Sept. 1999.
Gorin, A. L. and Riccardi, G., ``Spoken language variation over time and state in a natural spoken dialog system,'' Proc. ICASSP, Phoenix, Mar. 1999.
Rose, R. C. and Riccardi, G., ``Modeling dysfluency and background events in ASR for a natural language understanding task,'' Proc. ICASSP., Phoenix, March 1999.
Rahim, M., Riccardi, G., Wright, J., Buntschuh, B. and Gorin, A., ``Robust automatic speech recognition in a natural spoken dialog,'' Workshop on Robust Methods for Speech Recognition in Adverse Condition, Tampere, Finland, 1999.
Arai, K., Wright, J. H., Riccardi, G. and Gorin, A. L., ``Grammar fragment acquisition using syntactic and semantic clustering,'' Speech Communication, vol. 27, no. 1, Jan. 1999.
Gorin, A. L., Riccardi, G. and Wright, J. H., ``How May I Help You?'' in Computational Models of Speech Pattern Processing, Springer, 1999.
Arai, K., Wright, J. H., Riccardi, G. and Gorin, A. L., ``Grammar fragment acquisition using syntactic and semantic clustering,'' Proc. ICSLP, Sydney, Nov. 1998.
Riccardi, G., Potamianos, A. and Narayanan, S., ``Language model adaptation for spoken dialog systems,'' Proc. ICSLP, Sydney, Nov. 1998.
Riccardi, G. and Gorin, A. L., ``Stochastic language models for speech recognition and understanding,'' Proc. ICSLP, Sydney, Nov. 1998.
Rose, R. C., Yao, H., Riccardi, G. and Wright, J., ``Integration of utterance verification with statistical language modeling and spoken language understanding,'' Proc. ICASSP., Seattle, May 1998.
Arai, K., Wright, J., Riccardi, G. and Gorin, A., ``Grammar fragment acquisition using syntactic and semantic clustering,'' Proc. Workshop Spoken Language Understanding & Communication, Yokosuka, Japan, Dec. 1997.
Rose, R. C., Yao, H., Riccardi, G. and Wright, J., ``Integrating multiple knowledge sources for utterance verification in a large vocabulary speech understanding system,'' Proc. IEEE ASR Workshop Proc., Santa Barbara, 1997.
Gorin, A. L., Riccardi, G. and Wright, J. H., ``How may I help you?,'' Speech Communication, vol. 23, Oct. 1997, pp. 113-127.
Riccardi, G., Pieraccini, R. and Bocchieri, E., ``Stochastic automata for language modeling,'' Computer Speech and Language, vol. 10(4), 1996, pp. 265-293.
Bocchieri, E., Riccardi, G. and Anantharaman, J., ``The 1994 AT&T ATIS CHRONUS recognizer,'' Proc. 1995 ARPA Spoken Languge Technology Workshop, Austin, Texas, Jan. 1995, pp. 265-268.
Riccardi, G., Bocchieri, E. and Pieraccini, R., ``Non deterministic stochastic language models for speech recognition,'' Proc. ICASSP, Detroit, pp. 247-250, Detroit, 1995.
Bocchieri, E., Levin, E., Pieraccini, R. and Riccardi, G., ``Understanding spontaneous speech,'' J. of the Italian Assoc. of Artificial Intelligence, Sept. 1995.
Bocchieri, E. and Riccardi, G., ``The 1993 AT&T ATIS system,'' Proc. 1994 ARPA Spoken Language Technology Workshop, Plainsboro, NJ, March 1994, pp. 41-42.
Mumolo, E., Rebelli, A. and Riccardi, G., ``Improved multipulse algorithm for speech coding by means of adaptive Boltzmann annealing,'' European Transactions on Telecommunications, vol. 5, no. 6, Nov. 1994.
Mian, G. A. and Riccardi, G., ``A localization property of line spectrum pairs,'' IEEE Trans. on Speech and Audio Proc., vol. 2, no. 4, pp. 536-539, Oct. 1994.
Bocchieri, E. and Riccardi, G., ``Use of the forward-backward search for large vocabulary recognition with continuous observation density HMM's,'' Proc. IEEE Workshop on Automatic Speech Recognition, pp. 85-86, Snowbird, 1993..
Riccardi, G. and Mian, G. A., ``Analysis-by-synthesis algorithms for low bitrate coding,'' IEEE Workshop on Speech Coding for Telecommunications, Montreal, Oct. 1993.
Fratti, M., Mian, G. A. and Riccardi, G., ``An approach to parameter reoptimization in multipulse based coders,'' IEEE Trans. Speech & Audio Proc., vol. 1, no. 4, pp. 463-465, Oct. 1993.
Fratti, M., Mian, G. A. and Riccardi, G., ``On the effectiveness of parameter reoptimization in multipulse based coders,'' Proc. ICASSP '92, San Francisco, 1992, pp. 72-77.
Bocchieri, E. and Riccardi, G., ``State tying of triphone HMM's for the 1994 AT&T ARPA ATIS recognizer,'' Proc. EUROSPEECH '95, Madrid, Sept. 1995, pp. 1499-1503.
Menardi, P., Mian, G. A. and Riccardi, G., ``Dynamic bit allocation in subband coding of wideband audio with multipulse,'' Proc. EUSIPCO, Edinburgh, 1994, pp. 1449-1452.
Wright, J. H., Gorin, A. L. and Riccardi, G., ``Automatic acquisition of salient grammar fragments for call-type classification,'' Proc. EUROSPEECH, Rhodes, Greece, 1997, pp. 1419-1422.
Riccardi, G., Gorin, A. L., Ljolje, A. and Riley, M., ``A spoken language system for automated call routing,'' Proc. ICASSP '97, 1997, pp. 1143-1146.