Matrix Factorization with Heterogeneous Multiclass Preference Context

Publication date: Available online 23 January 2020Source: NeurocomputingAuthor(s): Jing Lin, Weike Pan, Lin Li, Zixiang Chen, Zhong MingAbstractThe spreading use of the Internet and big data technology has spawned the need for recommendation systems. However, to alleviate public anxiety about privacy, this paper advocates making recommendation with internal context, which refers to the implicit context hidden beneath the rating matrix only. Inspired by a recent work that embeds neighborhood information among users (as represented by multiclass preference context, MPC) into a factorization-based method, we extend it to both user-oriented and item-oriented, and put forward both user-oriented MPC and item-oriented MPC into a generic factorization framework called matrix factorization with heterogeneous MPC (MF-HMPC). In particular, we derive two specific recommendation methods from MF-HMPC with different structures, including MF with dual MPC (MF-DMPC) and MF with pipelined MPC (MF-PMPC), which are corresponding to concurrent structure and sequential structure, respectively. Extensive empirical studies on four public datasets show that our two forms of MF-HMPC outperform the referenced state-of-the-art MF methods as well as two representative deep learning methods. Moreover, we also discover some interesting facts about how these two kinds of internal contextual information complement each other. The main advantage of our methods is that they manage to strike a good balance betw...
Source: Neurocomputing - Category: Neuroscience Source Type: research

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CONCLUSIONS: Care teams need to offer opportunities to elicit patients' knowledge and fears, dispel myths, forge connections with other patients, and visit the dialysis unit before transition to alleviate anxiety. Interventions that facilitate a sense of control should be grounded in the meaning that the disorder has for the person and how it impacts their sense of self. PMID: 32063183 [PubMed - as supplied by publisher]
Source: Peritoneal Dialysis International - Category: Urology & Nephrology Tags: Perit Dial Int Source Type: research
In this study, 91 adolescents (10-24 years; 78 females) including 30 chronic pain patients with high pain-related distress, 29 chronic pain patients with low pain-related distress, and 32 healthy peers without chronic pain completed a developmentally appropriate T–S learning paradigm. We measured self-reported fear, psychophysiology (skin conductance response), and functional magnetic resonance imaging responses (N = 72 after functional magnetic resonance imaging exclusions). After controlling for age and anxiety symptoms, patients with high pain-related distress showed altered self-reported fear and frontolimbic act...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
Most studies of diabetic polyneuropathy (DPN) and painful DPN are conducted in persons with longstanding diabetes. This cross-sectional study aimed to estimate the prevalence of DPN and painful DPN, important risk factors, and the association with mental health in recently diagnosed type 2 diabetes. A total of 5514 (82%) patients (median diabetes duration 4.6 years) enrolled in the Danish Centre for Strategic Research in Type 2 Diabetes cohort responded to a detailed questionnaire on neuropathy and pain. A score ≥4 on the MNSI questionnaire determined possible DPN, whereas pain presence in both feet together with a scor...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
Persons with chronic musculoskeletal pain may be hypervigilant for pain-related cues which, paradoxically, may be maintaining their pain. Several randomized controlled trials have assessed whether a modified dot-probe protocol (ie, attention bias modification [ABM]) reduces chronic pain- and pain-related symptoms in persons with several diagnoses, including fibromyalgia. Scalability and economic efficiency potentiates the appeal of ABM protocols; however, research results have been mixed, with only some studies evidencing significant symptom gains from ABM and some evidencing gains for the control group. The current random...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
Conclusion: The atypical self-reported perinatal mood condition present in the 'zero' symptoms group have currently unknown clinical significance. PMID: 32064910 [PubMed - as supplied by publisher]
Source: Journal of Reproductive and Infant Psychology - Category: Psychiatry & Psychology Tags: J Reprod Infant Psychol Source Type: research
Conclusions: Data highlight the importance of developing specific support groups, for primiparae, due to their great emotional vulnerability, and for women with past miscarriage, to help them cope in adaptive ways with a new pregnancy. PMID: 32064903 [PubMed - as supplied by publisher]
Source: Journal of Reproductive and Infant Psychology - Category: Psychiatry & Psychology Tags: J Reprod Infant Psychol Source Type: research
Publication date: Available online 19 February 2020Source: International Review of NeurobiologyAuthor(s): J. Douglas Bremner, Matthew T. WittbrodtAbstractThis chapter reviews the relationship between stress and brain function in patients with neuropsychiatric disorders, with an emphasis on disorders that have most clearly been linked to traumatic stress exposure. These disorders, which have been described as trauma spectrum disorders, include posttraumatic stress disorder (PTSD), a subgroup of major depression, borderline personality disorder (BPD) and dissociative disorders; they share in common a neurobiological footprin...
Source: International Review of Neurobiology - Category: Neuroscience Source Type: research
Publication date: Available online 18 February 2020Source: NeuroscienceAuthor(s): Tsuyoshi Otsuka, Hue Thi Le, Akira Kohsaka, Fuyuki Sato, Hayato Ihara, Tomomi Nakao, Masanobu MaedaAbstractDisturbance of the daily cycles in sleep and wakefulness induced by conditions such as shift work and jet lag can increase the risk of affective disorders including anxiety and depression. The way such circadian disorganization disrupts the regulation of mood, however, is not well understood. More specifically, the impact of circadian disorganization on the daily rhythms of the neuronal function that controls mood remains unclear. We the...
Source: Neuroscience - Category: Neuroscience Source Type: research
Publication date: Available online 18 February 2020Source: Physiology &BehaviorAuthor(s): Zachary J Rosinger, Rose M De Guzman, Jason S Jacobskind, Brianna Saglimbeni, Margaret Malone, Danielle Fico, Nicholas Justice, Paolo Forni, Damian G ZuloagaAbstractAnxiety and depression are strikingly more prevalent in women compared with men. Dysregulation of corticotropin-releasing factor (CRF) binding to its cognate receptor (CRFR1) is thought to play a critical role in the etiology of these disorders. In the present study, we investigated whether there were sex differences in the effects of chronic variable stress (CVS) on C...
Source: Physiology and Behavior - Category: Physiology Source Type: research
In conclusion, short-term mandala coloring activity could significantly alleviate self-induced anxiety in community-dwelling older adults. Further studies on the long-term effects of mandala coloring activity in improving the emotional well-being of older adults are warranted. PMID: 32063986 [PubMed]
Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
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