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Exploiting Sensor Data Semantics for Smartphone-Based Lifelogging: Towards the Development of Digital Prosthetic Memory on Smartphones

Thesis Info

Access Option

External Link

Author

Shaukat Ali

Program

PhD

Institute

University of Peshawar

City

Peshawar

Province

KPK

Country

Pakistan

Thesis Completing Year

2010

Thesis Completion Status

Completed

Subject

Computer Science

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/9023/1/Shaukat%20Ali%20PhD%20Thesis.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727755655

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The paradigm of lifelogging promises the development of automatic systems for recording users'' life events information digitally and develops an electronic prosthetic memory for providing complementary assistance to human biological memory. Several lifelogging systems are invented by assimilating computing and sensory technologies to capture, annotate, and retrieve lifelong information. The wearable technology has gained market traction; however, has several limitations including hard-to-work environment, number of sensors, uni-faceted, etc. Therefore, they are unable to use contextual semantics for organizing lifelog information like in human episodic memory. In addition, the large-scale adaptation of lifelogging is possible, if lifelogging functionality is integrated in devices that are already owned and maintained by users. To bridge the gap, this thesis examines smartphone technology for developing a common understanding of using smartphone as a de-facto lifelogging device. The various contextual semantics from smartphone sensors data and their potential applications in lifelogging are identified. The semantic model (i.e., ontology) is developed and tested for using the contextual semantics to organize, annotate, and relate lifelog information in similar to human episodic memory, and provide enough contextual cues to recall lifelog information like associative recall in human memory. The semantic framework is proposed to unify the research efforts by incorporating smartphone''s sensors and processing capabilities, and semantic model to develop a semantically enriched digital prosthetic memory on smartphone. The proof-of-concept application called Semantic Lifelogging (SLOG) is developed to show the practicality of the proposed framework. The empirical evaluation has shown effectiveness of the methodology. In addition, future research directions are highlighted to help researchers in finding research topics.
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تیرے انتظار وچ کلی نوں سجایا میں
تیرے باہجھوں سوہنیا قرار وی ناں پایا میں

پھلاں نال سجدی اے باگاں دی بہار اے
پہلی واری تکیا تے ہو گیا سی پیار اے
سہنا پیا ہن مینوں دکھڑا ہزار اے
دکھاں والا بھار بھارا خوشیاں تھیں چایا میں
تیرے باہجھوں سوہنیا قرار وی ناں پایا میں

دن راتیں ہر ویلے تیرا ہی خیال وے
گلی گلی کوچے کوچے رہی تینوں بھال وے
ڈھونڈ ڈھونڈ تھکی میرا ہویا برا حال وے
دل میرا من دا نہیں بڑا سمجھایا میں
تیرے باہجھوں سوہنیا قرار وی ناں پایا میں

کلی وچ بہہ کے تیرا کراں انتظار وے
عشق تیرے نے ماہی دتا مینوں مار وے
چھیتی آ جا ہن ماہی لَے میری سار وے
تیرے باہجھوں دکھڑا ناں کسے نوں سنایا میں

کلی وچ بہنا تینوں عرشاں دی سیر وے
اک دن سوہنیا توں پا نہ آ کے پیر وے
ہر دم منگنی ہاں پیا تیری خیر وے
تیرے لئی ویکھ کِناں دکھڑا اٹھایا میں
تیرے باہجھوں سوہنیا قرار وی ناں پایا میں

قادریؔ کلی وچ بیٹھی مر جاواں گی
لگیاں وی سوہنیا میں توڑ نبھاواں گی
تیریاں وی یاداں دے چراغ میں جلاواں گی
پیا دی پریت نوں اے شوق تھیں نبھایا میں
تیرے باہجھوں سوہنیا قرار وی ناں پایا میں

COMPARISON OF PATELLAR MOBILIZATION AND TAPING IN PATIENT WITH PATELLOFEMORAL PAIN SYNDROME

Background of the Study: To compare patellar taping and mobilization plus conventional therapy for reducing knee pain in patients with patellofemoral pain syndrome (PFPS). Methodology: Controlled trial with 50 participants divided into two groups who received different treatments for 6 weeks: Group A had patellar taping and iliotibial band stretching, while Group B had patellar mobilization and quadriceps strengthening. Participants received three treatment sessions weekly for six weeks. The VAS was used to conduct pre and post-test pain evaluations for groups A and B. Results: Knee pain decreased in PFPS patients receiving patellar taping (Group A) or mobilization (Group B) using VAS (p<0.05). All treatments are effective for PFPS. The VAS scores after 6 weeks of post A and post B treatments assessed. After 6 weeks of taping, mean = 0.76±0.83. After 6 weeks, mean and SD = 1.20±1.12 from patellar mobilization. No significant difference between means (p = 0.12, α ≤ 0.05). Insignificance. Conclusion: The result of the study indicated that after 6 weeks of treatment for both patellar taping and patellar mobilization were effective in decreasing pain in PFPS.

Immunophenotyping of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma at Aga Khan University Hospital Nairobi

Objective: To characterize the immunophenotypic features of CLL/SLL among patients diagnosed at Aga Khan University Hospital, Nairobi. Background: Cancer is a growing health burden worldwide. Rising to this challenge will require improved diagnostic services. Chronic lymphocytic leukaemia is common in elderly patients. Early laboratory criteria for diagnosis only required demonstration of persistent lymphocytosis and morphological evaluation. The current international standard in diagnosis however, incorporates findings of immunophenotyping. Facilities for immunophenotyping have generally been unavailable in Kenya. The Royal Marsden Hospital criteria (RMH) provide a scoring system that enables CLL/SLL to be distinguished from other mature B cell disorders. Method: A laboratory based cross sectional survey conducted from August 2011 to April 2012. A census of eligible cases was conducted. Potential cases were identified based on the French-American-British (FAB) morphologic criteria for CLL. Consecutive samples were obtained and subjected to 3 colour immunophenotyping on a Beckman Coulter Cytomics FC 500 cytometer. A limited panel of antibodies was used. These included CD5, CD19, CD22, CD23, FMC7, kappa and lambda. CLL/SLL was defined using the RMH scoring system. The baseline clinical and diagnostic data were also obtained. Results: Forty nine cases met the eligibility criteria. Thirty one were known CLL cases and 18 were newly diagnosed. Median age at diagnosis was 62 years (range 45-95 years). Male: Female ratio was 1.3:1. Black patients were more likely to present with high risk disease (Rai stages III-IV) and with higher lymphocyte counts than non-blacks at diagnosis. 26.5% presented in Rai stage 0. The prevalence of CD5/CD23 co-expression in cases defined as CLL was found to be 95.9%. CD5 was universally expressed whereas CD23 was present in all but 2 cases. Both were associated with atypical morphology. Complete absence of light chain expression using a monoclonal antibody was found in 12.2% of cases. Five patients had their diagnosis revised. Of 30 patients on follow-up for CLL, only 1 in 6 had had any form of immunophenotyping done. Conclusion: Immunophenotyping is diagnostically productive and should be part of the diagnostic workup when a chronic lymphoproliferative disorder is suspected.