@conference {577, title = {Quantum Networks: Reset-and-Reuse can be a Game-changer for Entanglement via Distillation}, booktitle = {2022 IEEE International Conference on Quantum Computing and Engineering (QCE)}, year = {2022}, abstract = {

The future quantum network repeater is envisioned to primarily serve the role of creating entanglement between nodes and distilling those entanglements to an optimal level of performance. During our investigation, we implemented a multi-pass protocol for entanglement distillation and tested it on the IBM-Q environment, demonstrating successively improved results after multiple passes. We implemented two versions of multi-pass distillation, BBPSSW and DEJMPS, with a focus on optimizing the use of qubits, via the reset-and-reuse capability of the IBM implementation. The novel feature of reset-and-reuse can be a game-changer and can minimize the number of qubits required for large-scale applications. We also found that, though it is currently not possible to implement a criterion for continued distillation passes as a run-time feedback loop, the process can be studied through post-circuit data analysis. Our results also show that fidelity alone may guide us to discard some approaches that show success based on other metrics, such as entanglement success and success of transmitting a bit of data. The fidelity was experimentally found to be excessively low, for this complex process of multi-pass distillation.

}, doi = {10.1109/QCE53715.2022.00143}, author = {Germain, Julie and Dantu, Ram and Thompson, Mark and Dockendorf, Mark} } @conference {508, title = {Qubit Reset and Refresh: A Gamechanger for Random Number Generation}, booktitle = {Twelveth ACM Conference on Data and Application Security and Privacy (CODASPY )}, year = {2022}, abstract = {

Generation of random binary numbers for cryptographic use is often addressed using pseudorandom number generating functions in compilers and specialized cryptographic packages. Using the IBM{\textquoteright}s Qiskit reset functionality, we were able to implement a straight-forward in-line Python function that returns a list of quantum-generated random numbers, by creating and executing a circuit on IBM quantum systems. We successfully created a list of 1000 1024-bit binary random numbers as well as a list of 40,000 25-bit binary random numbers for randomness testing, using the NIST Statistical Test Suite for Random and Pseudorandom Number Generators for Cryptographic Applications. The quantum-generated random data we tested showed very strong randomness, according to the NIST suite. Previously, IBM{\textquoteright}s quantum implementation required a single qubit for each bit of data generated in a circuit, making generation of large random numbers impractical. IBM{\textquoteright}s addition of the reset instruction eliminates this restriction and allows for the creation of functions that can generate a larger quantity of data-bit output, using only a small number of qubits.

}, keywords = {Qiskit, QRNG, Quantum Computing, Random Number Generator}, doi = {10.1145/3508398.3519364}, url = {https://dl.acm.org/doi/abs/10.1145/3508398.3519364}, author = {Germain, Julie and Dantu, Ram and Thompson, Mark} } @article {231, title = {Quantifying Dynamic Cerebral Autoregulation using Electroencephalograms}, volume = {96}, year = {2015}, pages = {e69}, doi = {10.1016/j.apmr.2015.08.231}, author = {Bajwa, Garima and Ram Dantu and Nana, Arvind} } @conference {97, title = {Quantifying Cognitive Impairment Due to Physical or Mental Stress}, booktitle = {Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments}, year = {2013}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, abstract = {

In this paper, we study impairment caused by physical stress and impairment caused by alcohol consumption. We first base line the EEG waves in a meditation state. Then we measure the EEG waves during the physical activities such as walking, climbing stairs and doing sit-ups. We also measure the effect on brain as a person spins while sitting in a revolving chair (simulating a mental stress). Finally, we measure the EEG waves after consumption of alcohol. Our study shows that EEG waves do capture the physical activities that cause impairment. The magnitude of EEG waves increases with increased intensity of stress as measured by physical exercise or alcohol consumption. The magnitude is highest for sit-ups as compared to other activities and the magnitude for sit-ups after alcohol is even higher when compared with magnitude before alcohol consumption. A higher magnitude means lower level of alertness. The results could be used to improve the care of elderly and plan the intensity of their physical activity.

}, keywords = {alcohol consumption, cognitive impairment, EEG waves, physical stress}, isbn = {978-1-4503-1973-7}, doi = {10.1145/2504335.2504384}, url = {http://doi.acm.org/10.1145/2504335.2504384}, author = {Gupta, Neeraj and Ram Dantu} } @conference {41, title = {Quantifying Reciprocity in Social Networks}, booktitle = {2009 International Conference on Computational Science and Engineering}, year = {2009}, publisher = {IEEE Computer Society}, organization = {IEEE Computer Society}, address = {Washington, DC, USA}, abstract = {

In this paper we propose a new reciprocity index for quantifying social relationships based on mobile phone call detail records and Twitter blogs. We use this reciprocity index to measure the level of reciprocity between users. This work is useful for detecting unwanted calls (e.g., spam) and product marketing. For validation of our results, we used actual call logs of 100 users collected at MIT by the Reality Mining Project group for a period of 8 months and Twitter blogs of 460 users collected by the Network Security team at UNT for a period of 12 months. The experimental results show that our model achieves results with high accuracy.

}, isbn = {978-0-7695-3823-5}, doi = {10.1109/CSE.2009.399}, url = {http://dx.doi.org/10.1109/CSE.2009.399}, author = {Zhang, Huiqi and Ram Dantu and Cangussu, Jo{\~a}o} } @conference {60, title = {Quantifying presence using calling patterns}, booktitle = {Communication Systems Software and Middleware and Workshops, 2008. COMSWARE 2008. 3rd International Conference on}, year = {2008}, month = {Jan}, abstract = {

Presence technology is going to be an integral part of the next generation of communication technology. It can eliminate telephone tag between two parties (caller and callee), which will increase productivity of the parties and reduce unnecessary bandwidth usage of unwanted calls. In this paper, we propose a Willingness Estimator that computes willingness level of a callee for receiving calls from a specified caller. By knowing the willingness value of the callee the caller can decide on proceeding with the call or not. The proposed Willingness Estimator is tested with real mobile user data, and these results are highly accurate. We measure willingness based on calling patterns (arrival time, location, day) of a caller to a callee and this could serve as one of the future presence based services. The results can be used in telecommunication networks such as PSTN, Cellular networks, and Voice over IP networks.

}, keywords = {cellular networks, Communications technology, Computer science, Computer security, Intrusion detection, Laboratories, Mobile handsets, mobile user data, Network servers, next generation communication, Next generation networking, presence technology, Productivity, PSTN, telecommunication networks, telephony, user calling pattern, voice over IP networks, willingness estimator}, doi = {10.1109/COMSWA.2008.4554403}, author = {Husna, Husain and Phithakkitnukoon, Santi and Baatarjav, Enkh-Amgalan and Ram Dantu} } @conference {56, title = {Quantifying the Presence of Phone Users}, booktitle = {2008 5th IEEE Consumer Communications and Networking Conference}, year = {2008}, month = {Jan}, abstract = {

Presence-enabled telephony services can reduce telephone tag and improve customer satisfaction. In this paper we proposed the Bayesian inference model to calculate the willingness level of the callee to accept calls. Before making a call, the caller may use the willingness calculator to find out whether the callee is available. Based on this level the user can make a decision whether to make a call. For validation of our results, we used actual call logs of 100 users collected at MIT by the Reality Mining Project group for a period of 8 months. We used time of the day, day of the week, talk-time and location for calculating the willingness level Our results show a good agreement between computed willingness level and the number of missed/rejected calls. This service can be included as part of the presence server. When deployed, this service can increase productivity, avoid unwanted calls and reduce the call traffic congestion. This service is beneficial to both subscribers and phone service providers. However, in order to make this service a reality, we need to take into account other factors such social closeness, proximity, multiplexity and reputation of the caller.

}, keywords = {Bayes methods, Bayesian inference model, Bayesian methods, call traffic congestion, Computer science, Context, customer satisfaction, Multimedia communication, Multimedia systems, Network servers, phone service provider, presence-enabled telephony service, Productivity, Roads, telecommunication congestion control, telecommunication traffic, telephony, willingness calculator}, doi = {10.1109/ccnc08.2007.206}, author = {Zhang, Huiqi and Ram Dantu} } @article {295, title = {Quality indicator and method for frame selection in wireless network}, year = {2006}, month = {07/2006}, publisher = {Cisco Technology Inc}, chapter = {US7079512B1}, address = {US}, abstract = {

A method and system for indicating quality of a radio frame transmitted over a wireless link includes receiving a radio frame from the wireless link. A power indicator for the radio frame is determined based on a power control trend of the wireless link. A quality indicator for the radio frame is generated based on the power indicator.

}, keywords = {frame, indicator, link, quality, radio}, url = {https://patents.google.com/patent/US7079512/en}, author = {Alam, Mahbubul and Ram Dantu and Holur, Balaji and Eyceoz, Tugay} }