Machine Learning Models for Context-Aware Recommender Systems

The mass adoption of the internet has resulted in the exponential growth of products and services on the world wide web. An individual consumer, faced with this data deluge, is expected to make reasonable choices saving time and money. Organizations are facing increased competition, and they are looking for innovative ways to increase revenue and customer loyalty. A business wants to target the right product or service to an individual consumer, and this drives personalized recommendation. Recommender systems, designed to provide personalized recommendations, initially focused only on the user-item interaction. However, these systems evolved to provide a context-aware recommendations. Context-aware recommender systems utilize additional context, such as genre for movie recommendation, while recommending items to users. Latent factor methods have been a popular choice for recommender systems. With the resurgence of neural networks, there has also been a trend towards applying deep learning methods to recommender systems. This study proposes a novel contextual latent factor model that is capable of utilizing the context from a dual-perspective of both users and items. The proposed model, known as the Group-Aware Latent Factor Model (GLFM), is applied to the event recommendation task. The GLFM model is extensible, and it allows other contextual attributes to be easily be incorporated into the model. While latent-factor models have been extremely popular for recommender systems, they are unable to model the complex non-linear user-item relationships. This has resulted in the interest in applying deep learning methods to recommender systems. This study also proposes another novel method based on the denoising autoencoder architecture, which is referred to as the Attentive Contextual Denoising Autoencoder (ACDA). The ACDA model augments the basic denoising autoencoder with a context-driven attention mechanism to provide personalized recommendation. The ACDA model is applied to the event and movie recommendation tasks. The effectiveness of the proposed models is demonstrated against real-world datasets from Meetup and Movielens, and the results are compared against the current state-of-the-art baseline methods

Type B Idiopathic Bone Defect of Mandible: An Etiopathogenic Dilemma

Etiopathogenesis of the pathologic lesions forms the basis for formulation of appropriate intervention and further prevention. There is still a vast unknown field that has to be explored to know the causative reason behind certain benign & malignant lesions. Idiopathic bone defects are nonodontogenic pseudocystic cavities that are seen in the long bones & jaw bones. Radiographic interpretation is at times inadequate in diagnosis of odontogenic & nonodontogenic radiolucent lesions involving jaw bones. Histopathology has different criteria to segregate this lesion. In this paper, we discuss a case of type B histopathological variant of idiopathic bone defect that may suggest an alternative pathogenesis from type A variant

Gender Stereotyping of Emotions in Small Businesses and Entrepreneurial Ventures

This study discusses gender-emotion stereotyping and its effects on small businesses and entrepreneurial ventures and their overall strategic management. Men and women are expected to express different types of emotion in different ways according to their gender (Brescoll & Uhlmann, 2008; Brescoll, 2016; Durik et al., 2006; Fabes & Martin, 1991). Stereotypes are applied by individuals to others and themselves to govern and judge behavior (Plant et al., 2000). Those who act outside of societal expectations are subject to backlash by their peers, such as less respect and poor performance evaluations, with consequences on day-to-day business operations (Winkel & Ragins, 2017). The present study examines gender-emotion stereotyping’s effects on individuals and their personalities in the workplace, specifically within small businesses and entrepreneurial ventures. Through the proposed collection and analysis of secondary and primary data as well as discussion of implementing proposed solutions, this paper suggests methods and techniques to reduce gender-emotion stereotyping’s adverse effects on businesses and individuals and their planned and unplanned outcomes

Central giant cell lesion of mandible managed by intralesional triamcinolone injections : a report of two cases and literature review

Central giant cell lesion (CGCL) is a benign lesion which has unpredictable biologic behaviour and is amenable to a plethora of treatment alternatives. We describe our experience in managing this lesion by intralesional triamcinolone. The mainstay of treatment of CGCL in our centre until now has been surgical curettage or resection. We chose two patients for this pilot endeavour at our hands. Case I is a 10 year old girl having CGCL of left side mandible. Case II is a 20 yr old man with CGCL affecting the left side posterior mandible. Both patients responded well to intralesional administration of triamcinolone acetonide (Kenacort-10®) with no obvious recurrences to date. Successful application of this conservative drug therapy for managing CGCL can not only save the patient from a mutilating procedure but also has significant financial implications. The amount of triamcinolone injected ranged from 85mg to 180mg by 5-6 injections at weekly intervals

The Connection Between Regenerative Features of Salamander Limbs and Mammalian Somatic Cells

poster abstractThe unique regenerative feature of urodele salamander limbs is their natural ability to dissolve tissue organization and re-program somatic cells to adult stem-like cells at the site of an amputation to create a blastema that self-organizes the missing limb parts. To understand this information, we used quantitative LC/MS/MS peptide separation to analyze temporal changes in proteins after amputation of axolotl hind limbs. The information from this study will be useful in devising chemical induction strategies to reprogram mammalian somatic cells or activate resident stem cells directly at the site of injury to regenerate damaged tissues and appendages

A Strategic Framework for Consumer Preferences towards Emerging Retail Formats

The present paper is an effort to understand consumers’ attitude towards emerging retail formats and to propose a framework for consumers’ preferences towards emerging retail formats by taking into account demography, product-type and the product and store attributes of retailing. The results of this exploratory study highlight that the food and groceries; health and beauty; apparel; jewellery and consumer durables are the fastest growing categories of organized retailing. The factors contributing to retail growth in India are dynamics of demography, double income, urbanization and internet revolution. Consumers prefer modern retail formats like hypermarkets, malls and supermarkets. Convenience and variety are the attributes for preferring organized retailing. Youth in the age group of 18-30 years has a greater inclination to visit organized retail outlets and prefer to visit hypermarkets and malls for hedonic perspective

No Meeting of the Minds? Exploring CIO and Analyst Strategic Mental Models

Strategic IT alignment is seen in “an overwhelming body of literature” (Sabherwal, Sabherwal, Havakhor, & Steelman, 2019, p. 454) as the state of congruence between an organization’s IT strategy and the organizations business strategies. Strategy is the plan for getting from where you or your organization is to where it wants to be (Webb, 2019). Generally, organization management has the task of coming up with the strategy and the workers have the task of implementing that strategy. These two groups should agree on the current situation, what the strategy is, how to implement it, and the ultimate goals. When the two groups do not agree, implementing the strategy is difficult at best and impossible at worst. This paper explores how the mental models (Johnson-Laird, 2010) an organization’s strategy of IT personnel transition in the minds of management (Chief Information Officers) and workers (analysts). Revealed causal mapping brings these mental models to light so they can be compared, and where the mental models differ, action can be taken so management and workers are all on the same page

A Change Leadership and Management Research Discussion and Analysis on the Religiosity and Spirituality in Philosophical Organizations: The Sustainability Case of Religious Freedom and the Satanic Temple

Organizations and Governments need to critically experience the change management processes to understand and build planned organizational change models. Throughout these processes, religiosity and spirituality play a pivotal role in broadening our scientific understanding about the key philosophies of sustainable change leadership. This study builds onto these arguments while presenting a strong case of religious liberties, especially through the lens of The Satanic Temple (TST) alongside contextualizing the application of change. The manuscript successfully delineated the process of change management and philosophical sustainability by conducting large scale literature reviews and theoretical analyses characterized by micro and macro understandings of a variety of contextual variables and research ideas. Broadly, these included exploring the boundaries of political pressures and human rights, investigating the different perspectives of engines of change in society, bridging the gaps between political and socio-legal viewpoints of religiosity and spirituality, analyzing key roles played by TST in business and society, considering multiple outlooks of effective change communication in organizations and governments, and eventually examining the sustainability dimensions of effective change management

The Birth and Death of Small Businesses and Entrepreneurial Ventures: A Critical Review of Key Variables & Research Agenda

According to the United States Small Business Administration (SBA), small business owners represent 99.9% of all U.S. firms and employ 48% of the private sector employees, which accounts for over 40% of the U.S. private sector payroll. Following global suit, the focus in the United States on entrepreneurship has been on the rise over the last decade and is a major source of employment and revenue, as well as spurring new innovation (Leutner et al., 2014, America’s Small Business Development Center [ASBDC], 2020; U.S. Small Business Administration [SBA], 2020). In order to get a full picture of entrepreneurship in the United States, research and many studies have been conducted to try to understand the accountability of strategic management and the tactical reasoning of entrepreneurs (Ciavarella et al., 2004; Hurtz & Donovan, 2000; Leutner et al., 2014; Mitchell et al., 2007; Owens, 2003; Rauch & Frese, 2000; Staniewski & Awruk, 2019). While there are many definitions of entrepreneurship, a commonly accepted definition is the behavior that is tied to the generation of value in innovative tendencies, techniques, and actions. Strategic management helps an organization, small business, or new venture to get equipped with the right management tools, anticipate changes, and direct the organizational activities along the right path as part of a decision-making process. The objective of this critical review and research agenda paper is to better understand the role strategic management plays in the birth and death of small businesses and new ventures. Further, to explore if certain personality traits of individuals are responsible for promoting such actions, more than others. The Theory of Planned Behavior is considered from a theoretical background perspective to view the lens of accountability of this body of research. Specifically, as a discipline, can strategic management likely be considered accountable for the birth and death of organizations, small businesses, and new ventures? Are certain personality traits of individuals more responsible for promoting such actions than others

Multi-omics integration reveals molecular networks and regulators of psoriasis.

BackgroundPsoriasis is a complex multi-factorial disease, involving both genetic susceptibilities and environmental triggers. Genome-wide association studies (GWAS) and epigenome-wide association studies (EWAS) have been carried out to identify genetic and epigenetic variants that are associated with psoriasis. However, these loci cannot fully explain the disease pathogenesis.MethodsTo achieve a comprehensive mechanistic understanding of psoriasis, we conducted a systems biology study, integrating multi-omics datasets including GWAS, EWAS, tissue-specific transcriptome, expression quantitative trait loci (eQTLs), gene networks, and biological pathways to identify the key genes, processes, and networks that are genetically and epigenetically associated with psoriasis risk.ResultsThis integrative genomics study identified both well-characterized (e.g., the IL17 pathway in both GWAS and EWAS) and novel biological processes (e.g., the branched chain amino acid catabolism process in GWAS and the platelet and coagulation pathway in EWAS) involved in psoriasis. Finally, by utilizing tissue-specific gene regulatory networks, we unraveled the interactions among the psoriasis-associated genes and pathways in a tissue-specific manner and detected potential key regulatory genes in the psoriasis networks.ConclusionsThe integration and convergence of multi-omics signals provide deeper and comprehensive insights into the biological mechanisms associated with psoriasis susceptibility