%0 Journal Article %J PLoS ONE %D 2020 %T Multimodal mental health analysis in social media %A Amir Hossein Yazdavar %A Mohammad Saeid Mahdavinejad %A Goonmeet Baja %A William Romine %A Amit Sheth %A Amir Hassan Monadjemi %A Krishnaprasad Thirunarayan %A John M. Meddar %A Annie Myers %A Jyotishman Pathak %A Pascal Hitzler %K Explainable Machine Learning %K Hypothesis Testing %K National Language Processing %K Prediction %K Regression %X

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Depression is a major public health concern in the U.S. and globally. While successful early

identification and treatment can lead to many positive health and behavioral outcomes,

depression, remains undiagnosed, untreated or undertreated due to several reasons,

including denial of the illness as well as cultural and social stigma. With the ubiquity of social

media platforms, millions of people are now sharing their online persona by expressing their

thoughts, moods, emotions, and even their daily struggles with mental health on social

media. Unlike traditional observational cohort studies conducted through questionnaires

and self-reported surveys, we explore the reliable detection of depressive symptoms from

tweets obtained, unobtrusively. Particularly, we examine and exploit multimodal big (social)

data to discern depressive behaviors using a wide variety of features including individuallevel

demographics. By developing a multimodal framework and employing statistical techniques

to fuse heterogeneous sets of features obtained through the processing of visual,

textual, and user interaction data, we significantly enhance the current state-of-the-art

approaches for identifying depressed individuals on Twitter (improving the average F1-

Score by 5 percent) as well as facilitate demographic inferences from social media. Besides

providing insights into the relationship between demographics and mental health, our

research assists in the design of a new breed of demographic-aware health interventions.

%B PLoS ONE %G eng %U https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0226248&type=printable %0 Conference Paper %B IEEE, ICHI %D 2018 %T Mental Health Analysis Via Social Media Data, IEEE ICHI 2018 %A Amir Hossein Yazdavar %A Mohammad Saied Mahdavinejad %A Goonmeet Bajaj %A Krishnaprasad Thirunarayan %A Jyotishman Pathak %A Amit Sheth %B IEEE, ICHI %G eng %0 Generic %D 2017 %T Challenges of Sentiment Analysis for Dynamic Events %A Monireh Ebrahimi %A Amir Hossein Yazdavar %A Amit Sheth %X

Efforts to assess people's sentiments on Twitter have suggested that Twitter could be a valuable resource for studying political sentiment and that it reflects the offline political landscape. Many opinion mining systems and tools provide users with people's attitudes toward products, people, or topics and their attributes/aspects. However, although it may appear simple, using sentiment analysis to predict election results is difficult, since it is empirically challenging to train a successful model to conduct sentiment analysis on tweet streams for a dynamic event such as an election. This article highlights some of the challenges related to sentiment analysis encountered during monitoring of the presidential election using Kno.e.sis's Twitris system.

%G eng %0 Conference Paper %B IJCAI %D 2017 %T Relatedness-based Multi-Entity Summarization %A Kalpa Gunaratna %A Amir Hossein Yazdavar %A Krishnaprasad Thirunarayan %A Amit Sheth %A Gong Cheng %X

Representing world knowledge in a machine processable format is important as entities and their descriptions have fueled tremendous growth in knowledge-rich information processing platforms, services, and systems. Prominent applications of knowledge graphs include search engines (e.g., Google Search and Microsoft Bing), email clients (e.g., Gmail), and intelligent personal assistants (e.g., Google Now, Amazon Echo, and Appleā€™s Siri). In this paper, we present an approach that can summarize facts about a collection of entities by analyzing their relatedness in preference to summarizing each entity in isolation. Specifically, we generate informative entity summaries by selecting: (i) inter-entity facts that are similar and (ii) intra-entity facts that are important and diverse. We employ a constrained knapsack problem solving approach to efficiently compute entity summaries. We perform both qualitative and quantitative experiments and demonstrate that our approach yields promising results compared to two other stand-alone state-ofthe-art entity summarization approaches.

%B IJCAI %G eng %0 Conference Paper %B ASONAM %D 2017 %T Semi-Supervised Approach to Monitoring Clinical Depressive Symptoms in Social Media %A Amir Hossein Yazdavar %E Hussein S. Al-Olimat %E Monireh Ebrahimi %E Goonmeet Bajaj %E Tanvi Banerjee %E Krishnaprasad Thirunarayan %E Jyotishman Pathak %E Amit Sheth %X

With the rise of social media, millions of people are routinely expressing their moods, feelings, and daily struggles with mental health issues on social media platforms like Twitter. Unlike traditional observational cohort studies conducted through questionnaires and self-reported surveys, we explore the reliable detection of clinical depression from tweets obtained unobtrusively. Based on the analysis of tweets crawled from users with self-reported depressive symptoms in their Twitter profiles, we demonstrate the potential for detecting clinical depression symptoms which emulate the PHQ-9 questionnaire clinicians use today. Our study uses a semi-supervised statistical model to evaluate how the duration of these symptoms and their expression on Twitter (in terms of word usage patterns and topical preferences) align with the medical findings reported via the PHQ-9. Our proactive and automatic screening tool is able to identify clinical depressive symptoms with an accuracy of 68% and precision of 72%.

%B ASONAM %G eng %U https://dl.acm.org/doi/abs/10.1145/3110025.3123028