As applications become more complex with millions of lines of code, maintaining this code becomes an increasing burden. One fundamental set of tools involved in helping code maintenance finds segments of code given a higher-level concept. Although a number of techniques exist for this task, they have a number of issues. This paper discusses these limitations and proposes a number of techniques ...

Continuity of isotone mappings and embeddings of a chain G into another chain are studied. Especially, conditions are found under which the set of points of discontinuity of such a mapping is dense in G.

This paper examines the effect of attending the flagship state university on the earnings of 28 to 33 year olds by combining confidential admissions records from a large state university with earnings data collected through the state’s unemployment insurance program. To distinguish the effect of attending the flagship state university from the effects of confounding factors correlated with the ...

We estimate the impact of a large anti-poverty program – the Uruguayan PANES – on political support for the government that implemented it. The program mainly consisted of a monthly cash transfer for a period of roughly two and half years. Using the discontinuity in program assignment based on a pre-treatment score, we find that beneficiary households are 21 to 28 percentage points more likely ...

Texas is the only US state that limits home equity borrowing to 80 percent of home value. This paper exploits this policy discontinuity around the Texas’ interstate borders and uses a multidimensional regression discontinuity design framework to find that limits on home equity borrowing in Texas lowered the likelihood of mortgage default by about 1 percentage point for all mortgages and 2-4 per...

Many environmental problems involve diffusion and convection processes, which can be described by partial differential equations (PDEs). This paper will describe the development of a MATLAB template that generates a numerical solution to PDEs using the method of lines. The template will be applied to various unsaturated flow problems within soil physics to demonstrate the versatility of the met...

The quality of transmitted speech is based on the auditory characteristics the degraded signal provokes. In past studies, it has been shown that the main features of speech transmission can be subsumed under the orthogonal perceptual dimensions “discontinuity”, “noisiness”, and “coloration”. In order to gain more insight into the dimensional composition for arbitrary transmission conditions, an...