Data centers are promising participants in demand response programs (i.e., reducing a large electricity demand upon utility’s request), making power grid more stable and sustainable. In this paper, we focus on enabling colocation data center demand response. Colocation is an integral yet unique segment of data center industry, where multiple tenants house their servers in one shared facility. N...

In many real-life applications of house allocation problems, whenever an existing tenant wants to move, he needs to give up his current house before getting another one. This practice discourages existing tenants from such attempts and results in loss of potentially large gains from trade. Motivated by this observation, we propose a simple mechanism that is Pareto efficient, individually ration...

The lack of performance isolation in multi-tenant datacenters at appliances like middleboxes and storage servers results in volatile application performance. To insulate tenants, we propose giving them the abstraction of a dedicated virtual datacenter (VDC). VDCs encapsulate end-to-end throughput guarantees—specified in a new metric based on virtual request cost—that hold across distributed app...

Since energy-related costs make up an increasingly significant component of overall costs for data centers run by cloud providers, it is important that these costs be propagated to the tenants in ways that are fair and promote workload modulation that is aligned with overall cost-efficacy. We argue that there exists a big gap in how electric utilities charge data centers for their energy consum...

the paper attempts to study the efficiency of crop production and resource use effi-ciency on temple tenants and owner farms in tirunelveli district of tamil nadu. a sam-ple of 90 temple tenants and 50 owner farmers from two taluks of tirunelveli district, nawely, shencottah and tenkasi were selected for the study. the reference period of the study was 2002-2003. the efficiency analysis with th...

This paper investigates the impacts of smoke-free housing policies on compliance, enforcement and smoking behavior. From 2012 to 2014, we studied two affordable housing providers in Canada with comprehensive smoke-free policies: Waterloo Regional Housing that required new leases to be non-smoking and exempted existing leases, and Yukon Housing Corporation that required all leases (existing and ...

This paper provides the first systematic analysis of the choice of green office space by commercial tenants. We analyze the decisions of more than 11,000 tenants to choose office space in green buildings or in otherwise comparable non-green buildings located nearby. We formulate six propositions to explain why specific firms and industries may be more likely to lease green space. We test these ...

Yinqian Zhang: Cache-based Side-Channel Attacks in Multi-Tenant Public Clouds and Their Countermeasures (Under the direction of Michael Reiter) Cloud computing is gaining traction due to the business agility, resource scalability and operational efficiency that it enables. However, the murkiness of the security assurances offered by public clouds to their tenants is one of the major impediments...

This study uses hearing transcripts to examine judge-defendant interaction in a trial-type setting. The setting is a public housing eviction hearing; judges are eviction board members and defendants are tenants facing eviction for non-payment of rent. All tenants in the sample were formally evicted, but in each case the execution of the eviction order was stayed on the condition that the tenant...