STYLISTIC COMMENTS I tend to make the same set of comments over and over when I proofread, so I thought I'd gather them together into one place for easy reference. 1. Avoid empty sections: Some text is needed between a section title and the first subsection of the section. 2. Capitalize names of sections, equations, figures, tables, like "Section 3.1". So, "next section", but "Section 6". Same goes for Item 2, Table 3, Assumption 4. 3. Use a comma after "but", "next", "here", "now", "then", adverbs etc., when starting a sentence. Then, your text will flow nicely. 4. Pluralize abbreviations using an "s". So, "MDPs", not "MDP's". 5. Avoid the dangling "this". So, "this example shows that" not "this shows that". This rule is intended to discourage this kind of behavior. One hint: Try changing "this" to "it"---usually, doing so will make it obvious that more context is needed. 6. Hyphenate noun phrases if they defy the natural right-to-left grouping in English. So, "relational reinforcement learning" is ok, but "reinforcement learning algorithm" should be "reinforcement-learning algorithm". Noun-phrase hyphenation is needed to group words in the beginning of a noun phrase, but not when there are only two words. [A nice example from The Colbert Report: "Nazi-treasure hunter" (someone seeking Nazi treasure) vs. "Nazi treasure hunter" (a Nazi who is seeking treasure).] 7. Use "which" only after a comma, because it is used to add descriptive features instead of defining features. So, "the ball which I threw" should either be "the ball that I threw" (meaning, "of the many possible balls, I'm talking about the one that I threw") or "the ball, which I threw" (meaning, "that ball I'm talking about, you might also like to know that I threw it"). I try to follow this rule, which I learned from my advisor. 8. affect/effect [rule not yet written] 9. Don't use citations as nouns. Say "As explained by Kearns and Singh (2002)" or "As explained elsewhere (Kearns and Singh 2002)" instead of "As explained by (Kearns and Singh, 2002)". 10. Don't use latin abbreviations. That is, say "that is" instead of "ie" or "for example" instead of "eg". I guess I don't mind Latin if it's spelled out, for example "ad hoc". But, no one seems to use "exempli gratia" (e.g.) and "id est" (i.e.) because they look overly complicated, that is, there are perfectly good English substitutes. 11. Separate sentence-initial prepositional phrases by a comma. So, "From what I've heard, he solved it" instead of "From what I've heard he solved it". In case there is confusion, imagine trying to parse the sentence to mark where the prepositional phrase ends. 12. Use one- vs. two-word phrases correctly. These phrases should be one word when used as a noun and two words when used as a verb. For example, "We trade off time and energy." and "We strike a careful tradeoff between time and energy." Another one: "We set the cutoff to 0.7%, but had to cut off any runs that took too long." Another: "We print out the data and pick up the printout later from the pickup box." And: "I will write up my experiment and then send the writeup to my supervisor." Longer list: follow up, followup; trade off, tradeoff; speed up, speedup; cut off, cutoff; print out, printout; write up, writeup; set up, setup; pick up, pickup; in line, inline; make up, makeup. 13. Master "its" vs. "it's". "Its" is possessive and "it's" is a contraction for "it is". So, we say "It's unfortunate that its nose fell off." In my experience with this rule, it's common for people to forget its proper usage. 14. Don't begin a sentence with a variable or function name. It can help to put "The equation ..." in front of it first. Updated by Michael L. Littman, 2008. All rights reserved.