// add the new user to the encrypted users file which has the detailed stats for all users
// synchronize to make sure that only one thread can be inside this block at a time.
public static synchronized String addUserAndIssueCode(UserStats stats)
throws IOException, GeneralSecurityException, ClassNotFoundException, NoMoreCodesException {
// ok, now we have a list of stats objects, representing all users.
// add this user to the list.
// the code assigned to this user will simply be codes.get(users.size())
// but do an error check first to be sure we're not out of codes
List<UserStats> users = readUsersFile();
if (users.size() >= MemoryStudy.codes.size()) {
log.warn("NOC WARNING: codes file exhausted!!!!");
throw new NoMoreCodesException();
}
// ok, we have enough codes, just give out one
String passkey = MemoryStudy.codes.get(users.size());
int USERID_BASE =
100; // userid numbering starts from USERID_BASE, new id is base + # existing codes
stats.userid = Integer.toString(USERID_BASE + users.size());
stats.code = passkey;
users.add(stats);
// encrypt and write the users file back
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(users);
oos.close();
CryptoUtils.writeEncryptedBytes(baos.toByteArray(), USERS_FILE);
return passkey;
}
public static synchronized boolean anyCodesAvailable()
throws IOException, GeneralSecurityException, ClassNotFoundException {
try {
List<UserStats> users = readUsersFile();
return (users.size() < codes.size());
} catch (Exception e) {
Util.print_exception(e, log);
}
return false;
}
/* Drops terms that contain other terms (prefixes, suffixes, etc.) and trims the questionlist to the target size.*/
private ArrayList<MemoryQuestion> dropPrefixSuffixfromSortedList(
List<MemoryQuestion> questionlist, int targetSize) {
ArrayList<MemoryQuestion> resultList = new ArrayList<MemoryQuestion>();
Set<Integer> badIndexSet = new LinkedHashSet<Integer>();
int terms = questionlist.size();
for (int first = 0; first < terms; first++) {
MemoryQuestion mq1 = questionlist.get(first);
String name1 = mq1.correctAnswer;
if (badIndexSet.contains(first)) continue;
resultList.add(mq1);
if (resultList.size() >= targetSize) return resultList;
for (int second = first + 1; second < terms; second++) {
MemoryQuestion mq2 = questionlist.get(second);
String name2 = mq2.correctAnswer;
if (name1.contains(name2) || name2.contains(name1)) {
badIndexSet.add(second);
}
}
}
return resultList;
}
/**
* lookup doesn't have to be synchronized
*
* @throws ClassNotFoundException
* @throws GeneralSecurityException
* @throws IOException
*/
public static synchronized UserStats lookup(String userCode)
throws IOException, GeneralSecurityException, ClassNotFoundException {
List<UserStats> users = readUsersFile();
if (codes == null) return null;
for (int i = 0; i < codes.size(); i++) {
if (codes.get(i).equals(userCode))
return users.get(
i); // simple logic: user is providing code #1. therefore s/he must be user #i. what's
// not to like?.
}
return null;
}
/** Generates person names tests from the given archive. @throws IOException */
public void generatePersonNameQuestions(
Archive archive,
NERModel nerModel,
Collection<EmailDocument> allDocs,
Lexicon lex,
int numClues)
throws IOException, GeneralSecurityException, ClassNotFoundException, ReadContentsException,
ParseException {
this.archive = archive;
questions = new ArrayList<>();
ArchiveCluer cluer = new ArchiveCluer(null, archive, nerModel, null, lex);
tabooCluesSet = new LinkedHashSet<>();
archive.assignThreadIds();
List<ClueEvaluator> evaluators = getDefaultEvals();
List<Document> docs = archive.getAllDocs();
Multimap<Contact, EmailDocument> contactToMessages = LinkedHashMultimap.create();
Multimap<Contact, Long> contactToThreadIds = LinkedHashMultimap.create();
// sort by date
Collections.sort(docs);
Date earliestDate = null, latestDate = null;
Map<Contact, Date> contactToLatestDate = new LinkedHashMap<>();
// compute earliest and latest date across all messages in corpus
for (Document doc : docs) {
EmailDocument ed = (EmailDocument) doc;
if (earliestDate == null || ed.date.before(earliestDate)) earliestDate = ed.date;
if (latestDate == null || ed.date.after(latestDate)) latestDate = ed.date;
}
JSPHelper.log.info(
"===================\nStarting to generate person names memory questions from "
+ docs.size()
+ " messages with "
+ numClues
+ " questions"
+ ", earliest date = "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(earliestDate)
+ " latest date = "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(latestDate));
Set<Integer> tabooSentenceHashes = new LinkedHashSet<>();
// create hashes of all sentences seen at least twice (case insensitive, lower cased)
{
Set<Integer> hashesSeen = new LinkedHashSet<>();
for (Document d : docs) {
String contents = archive.getContents(d, true);
String cleanedContents = EmailUtils.cleanupEmailMessage(contents);
SentenceTokenizer st = new SentenceTokenizer(cleanedContents);
while (st.hasMoreSentences()) {
String sentence = st.nextSentence();
sentence = canonicalizeSentence(sentence);
int hashCode = sentence.hashCode();
if (hashesSeen.contains(hashCode)) {
tabooSentenceHashes.add(hashCode);
log.info("Marking sentence as taboo: " + sentence);
} else hashesSeen.add(hashCode);
}
}
}
// compute contactToLatestDate that contact has been seen on
for (Document doc : docs) {
EmailDocument ed = (EmailDocument) doc;
// discard doc if it is not a sent mail
if ((ed.sentOrReceived(archive.addressBook) & EmailDocument.SENT_MASK) == 0) continue;
for (Contact c : ed.getParticipatingContactsExceptOwn(archive.addressBook)) {
Date currentLatestDate = contactToLatestDate.get(c);
if (currentLatestDate == null || currentLatestDate.before(ed.date))
contactToLatestDate.put(c, ed.date);
contactToMessages.put(c, ed);
contactToThreadIds.put(c, ed.threadID);
}
}
log.info("We are considering " + contactToLatestDate.size() + " contacts");
Date currentDate = new Date();
List<Pair<Date, Date>> intervals =
computeDateIntervals(earliestDate, currentDate); // go back from current date
// intervals[0] is the most recent.
JSPHelper.log.info("done computing " + intervals.size() + " intervals");
for (Pair<Date, Date> p : intervals)
JSPHelper.log.info(
"Interval: "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(p.getFirst())
+ " - "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(p.getSecond()));
int cluesPerInterval =
(numClues > 0 && intervals.size() > 0)
? (numClues + intervals.size() - 1) / intervals.size()
: 0;
JSPHelper.log.info(
"Will try to generate " + Util.pluralize(cluesPerInterval, "questions") + " per interval");
Multimap<Integer, Contact> intervalToContacts = LinkedHashMultimap.create();
// nSent is the number of sentences allowed in a clue text
int nSent = 2;
for (Contact c : contactToLatestDate.keySet()) {
Date lastSeenDate = contactToLatestDate.get(c);
// which interval does this date belong to? we'll assign this contact in that interval in the
// intervalToContacts map
int interval = -1;
Date intervalStart = null, intervalEnd = null;
{
int i = 0;
for (Pair<Date, Date> p : intervals) {
intervalStart = p.getFirst();
intervalEnd = p.getSecond();
if ((intervalStart.before(lastSeenDate) && intervalEnd.after(lastSeenDate))
|| intervalStart.equals(lastSeenDate)
|| intervalEnd.equals(lastSeenDate)) {
interval = i;
break;
}
i++;
}
}
if (interval < 0 || interval == intervals.size()) {
JSPHelper.log.info(
"What, no interval!? for "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(lastSeenDate));
continue;
}
intervalToContacts.put(interval, c);
}
log.info("Interval information (interval 0 is the most recent):");
for (int interval = 0; interval < intervals.size(); interval++) {
Collection<Contact> contacts = intervalToContacts.get(interval);
int nContactsForThisInterval = (contacts == null) ? 0 : contacts.size();
log.info(
"In interval "
+ interval
+ " there are "
+ Util.pluralize(nContactsForThisInterval, "candidate contact")
+ " who were last seen in this interval");
}
for (int interval = 0; interval < intervals.size(); interval++) {
Date intervalStart = intervals.get(interval).getFirst();
Date intervalEnd = intervals.get(interval).getSecond();
Collection<Contact> candidateContactsForThisInterval = intervalToContacts.get(interval);
if (candidateContactsForThisInterval == null) {
log.info("Skipping interval " + interval + " because there are no contacts");
continue;
}
Map<Clue, Contact> clueToContact = new LinkedHashMap<>();
log.info("=======\nGenerating questions for interval " + interval);
outer:
for (Contact c : candidateContactsForThisInterval) {
String name = c.pickBestName();
if (name.length() < 2) // could also check if alphanumberic only
continue outer;
// ignore contact if name does not contain all alphabets. Even a period is not allowed. only
// space is allowed.
for (char ch : name.toCharArray()) {
if (!Character.isAlphabetic(ch) && !Character.isSpaceChar(ch)) continue outer;
}
Clue clue =
cluer.createPersonNameClue(
c,
evaluators,
nerModel,
intervalStart,
intervalEnd,
nSent,
archive,
tabooSentenceHashes);
if (clue != null) clueToContact.put(clue, c);
}
List<Clue> clueList = new ArrayList(clueToContact.keySet());
Collections.sort(clueList);
List<Clue> selectedClues = new ArrayList<>();
for (int i = 0; i < cluesPerInterval && i < clueList.size(); i++) {
selectedClues.add(clueList.get(i));
}
log.info(
"For interval "
+ interval
+ " selected "
+ selectedClues.size()
+ " contacts out of "
+ clueList.size()
+ " possible candidates.");
// for (Clue c: clueList)
// log.info ("Clue candidate for " + clueToContact.get(c).pickBestName() + "
// score = " + c.clueStats.finalScore+ " clue is " + c );
// for (Clue c: selectedClues)
// log.info ("Selected clue: " + clueToContact.get(c).pickBestName() + " score = "
// + c.clueStats.finalScore+ " clue is " + c);
for (Clue selectedClue : selectedClues) {
Contact c = clueToContact.get(selectedClue);
String name = c.pickBestName();
List<Integer> lengthList = Crossword.convertToWord(name).getSecond();
String lengthDescr = "";
if (lengthList.size() > 1) lengthDescr += Integer.toString(lengthList.size()) + " words: ";
for (Integer i : lengthList) {
lengthDescr += Util.pluralize(i, "letter") + ", ";
}
lengthDescr =
lengthDescr.substring(0, lengthDescr.length() - 2); // subtract the extra comma.
ClueInfo ci = new ClueInfo();
ci.lastSeenDate = contactToLatestDate.get(c);
ci.nMessages = contactToThreadIds.get(c).size();
ci.nThreads = contactToThreadIds.get(c).size();
questions.add(new MemoryQuestion(this, name, selectedClue, 1, lengthDescr));
}
}
log.info(questions.size() + " questions generated");
log.info("Top candidates are:");
// sort q's by clue score
Collections.sort(questions);
// log.info("Based on clue score, top answers:");
// for (MemoryQuestion mq: questions)
// log.info (mq.correctAnswer + " times= clue=" + mq.clue.clue);
int count = 0;
for (MemoryQuestion mq : questions) {
mq.setQuestionNum(count++);
}
// log the questions as well, just in case we don't get to the final point due to user fatigue
// or crashes
logStats("questions.final", false);
}
/**
* Generates list of questions and stores it in the current instance of MemoryStudy We handle two
* kinds of questions namely, person names tests and non-person name tests. Non-person name test
* is a fill in the blank kind where the blank is to be filled with the correct non-person entity
* to complete the sentence person name test is to guess the person in correspondent list based on
* some distinctive sentences in the mail
*
* @param maxInt - max. number of questions from a interval
* @throws IOException
*/
public void generateQuestions(
Archive archive,
NERModel nerModel,
Collection<EmailDocument> allDocs,
Lexicon lex,
int maxInt,
boolean personTest)
throws IOException, GeneralSecurityException, ClassNotFoundException, ReadContentsException,
ParseException {
this.archive = archive;
if (allDocs == null) allDocs = (Collection) archive.getAllDocs();
questions = new ArrayList<>();
ArchiveCluer cluer = new ArchiveCluer(null, archive, nerModel, null, lex);
Short[] itypes =
new Short[] {
FeatureDictionary.BUILDING,
FeatureDictionary.PLACE,
FeatureDictionary.RIVER,
FeatureDictionary.ROAD,
FeatureDictionary.UNIVERSITY,
FeatureDictionary.MOUNTAIN,
FeatureDictionary.AIRPORT,
FeatureDictionary.ISLAND,
FeatureDictionary.MUSEUM,
FeatureDictionary.BRIDGE,
FeatureDictionary.AIRLINE,
FeatureDictionary.THEATRE,
FeatureDictionary.LIBRARY,
FeatureDictionary.LAWFIRM,
FeatureDictionary.GOVAGENCY
};
double CUTOFF = 0.001;
tabooCluesSet = new LinkedHashSet<>();
archive.assignThreadIds();
List<Document> docs = archive.getAllDocs();
Map<String, Date> entityToLastDate = new LinkedHashMap<>();
Multimap<String, EmailDocument> entityToMessages = LinkedHashMultimap.create();
Multimap<String, Long> entityToThreads = LinkedHashMultimap.create();
Multimap<String, String> ceToDisplayEntity = LinkedHashMultimap.create();
int di = 0;
// sort by date
Collections.sort(docs);
Set<String> ownerNames = archive.ownerNames;
Date earliestDate = null, latestDate = null;
Set<String> allEntities = new LinkedHashSet<>();
for (Document doc : docs) {
EmailDocument ed = (EmailDocument) doc;
if (earliestDate == null || ed.date.before(earliestDate)) earliestDate = ed.date;
if (latestDate == null || ed.date.after(latestDate)) latestDate = ed.date;
List<String> entities = new ArrayList<>();
if (!personTest) {
entities.addAll(
Arrays.asList(archive.getAllNamesInDoc(doc, true))
.stream()
.filter(n -> n.typeScore > CUTOFF)
.map(n -> n.text)
.collect(Collectors.toList()));
} else {
// do not consider mailing lists
if (ed.sentToMailingLists != null && ed.sentToMailingLists.length > 0) continue;
// discard doc if it is not a sent mail
if ((ed.sentOrReceived(archive.addressBook) & EmailDocument.SENT_MASK) == 0) continue;
List<Address> addrs = new ArrayList<>();
if (ed.to != null) for (Address addr : ed.to) addrs.add(addr);
List<String> names = new ArrayList<>();
for (Address addr : addrs) {
Contact c = archive.addressBook.lookupByAddress(addr);
names.add(c.pickBestName());
}
for (String name : names) {
if (!ownerNames.contains(name) && !DictUtils.hasDictionaryWord(name)) {
entities.add(name);
}
}
}
allEntities.addAll(entities);
// get entities
for (String e : entities) {
if (Util.nullOrEmpty(e)) continue;
e = e.replaceAll("^\\W+|\\W+$", "");
if (e.length() > 10 && e.toUpperCase().equals(e))
continue; // all upper case, more than 10 letters, you're out.
String ce = DictUtils.canonicalize(e); // canonicalize
if (ce == null) {
JSPHelper.log.info("Dropping entity: " + e);
continue;
}
ceToDisplayEntity.put(ce, e);
entityToLastDate.put(ce, ed.date);
entityToMessages.put(ce, ed);
entityToThreads.put(ce, ed.threadID);
}
if ((++di) % 1000 == 0) log.info(di + " of " + docs.size() + " messages processed...<br/>");
}
log.info(
"Considered #"
+ allEntities.size()
+ " unique entities and #"
+ ceToDisplayEntity.size()
+ " good ones in #"
+ docs.size()
+ " docs<br>");
log.info("Owner Names: " + ownerNames);
JSPHelper.log.info(
"Considered #"
+ allEntities.size()
+ " unique entities and #"
+ ceToDisplayEntity.size()
+ " good ones in #"
+ docs.size()
+ "docs");
JSPHelper.log.info(
"earliest date = "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(earliestDate));
JSPHelper.log.info(
"latest date = " + edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(latestDate));
Multimap<String, String> tokenToCE = LinkedHashMultimap.create();
for (String ce : ceToDisplayEntity.keySet()) {
List<String> tokens = Util.tokenize(ce);
for (String t : tokens) tokenToCE.put(t, ce);
}
// Compute date intervals
int DAYS_PER_INTERVAL = 30;
List<Pair<Date, Date>> intervals = new ArrayList<Pair<Date, Date>>();
{
JSPHelper.log.info("computing time intervals");
Date closingDate = latestDate;
JSPHelper.log.info(
"closing = " + edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(closingDate));
while (earliestDate.before(closingDate)) {
Calendar cal = new GregorianCalendar();
cal.setTime(closingDate); // this is the time of the last sighting of the term
// scroll to the beginning of this month
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
Date endDate = cal.getTime();
cal.add(
Calendar.DATE,
(1
- DAYS_PER_INTERVAL)); // 1- because we want from 0:00 of first date to 23:59 of
// last date
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
Date startDate = cal.getTime();
intervals.add(new Pair<Date, Date>(startDate, endDate));
// ok we got an interval
// closing date for the next interval is 1 day before endDate
cal.add(Calendar.DATE, -1);
closingDate = cal.getTime();
}
JSPHelper.log.info("done computing intervals, #time intervals: " + intervals.size());
for (Pair<Date, Date> p : intervals)
JSPHelper.log.info(
"Interval: "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(p.getFirst())
+ " - "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(p.getSecond()));
}
// initialize clueInfos to empty lists
List<ClueInfo> clueInfos[] = new ArrayList[intervals.size()];
for (int i = 0; i < intervals.size(); i++) {
clueInfos[i] = new ArrayList<ClueInfo>();
}
Map<Integer, Integer> intervalCount = new LinkedHashMap<>();
// nSent is the number of sentences allowed in a clue text
int nvalidclues = 0, nSent = 2;
// generate clueInfos for each entity
for (String ce : entityToLastDate.keySet()) {
Date lastSeenDate = entityToLastDate.get(ce);
// compute displayEntity (which has red for core words) and fullAnswer, which is a simple
// string
String fullAnswer = "";
{
List<String> tokens = Util.tokenize(ceToDisplayEntity.get(ce).iterator().next());
for (String t : tokens) {
if (EnglishDictionary.stopWords.contains(t.toLowerCase())) continue;
fullAnswer += t + " ";
}
fullAnswer = fullAnswer.trim();
}
// dont want the answer to be scored low just because it has extra non-word chars in the begin
// or end
fullAnswer = fullAnswer.replaceAll("^\\W+|\\W+$", "");
// which interval does this date belong to?
int interval = -1;
Date intervalStart = null, intervalEnd = null;
{
int i = 0;
for (Pair<Date, Date> p : intervals) {
intervalStart = p.getFirst();
intervalEnd = p.getSecond();
if ((intervalStart.before(lastSeenDate) && intervalEnd.after(lastSeenDate))
|| intervalStart.equals(lastSeenDate)
|| intervalEnd.equals(lastSeenDate)) {
interval = i;
break;
}
i++;
}
}
if (interval < 0 || interval == intervals.size())
JSPHelper.log.info(
"What, no interval!? for "
+ edu.stanford.muse.email.CalendarUtil.formatDateForDisplay(lastSeenDate));
if (!intervalCount.containsKey(interval)) intervalCount.put(interval, 0);
if (intervalCount.get(interval) > maxInt) continue;
intervalCount.put(interval, intervalCount.get(interval) + 1);
List<Integer> lengthList = Crossword.convertToWord(fullAnswer).getSecond();
String lengthDescr = "";
if (lengthList.size() > 1) lengthDescr += Integer.toString(lengthList.size()) + " words: ";
for (Integer i : lengthList) {
lengthDescr += Util.pluralize(i, "letter") + ", ";
}
lengthDescr = lengthDescr.substring(0, lengthDescr.length() - 2); // subtract the extra comma.
ClueInfo ci = new ClueInfo();
ci.link = "../browse?term=\"" + fullAnswer + "\"&sort_by=recent&searchType=original";
ci.lastSeenDate = lastSeenDate;
ci.nMessages = entityToMessages.get(ce).size();
ci.nThreads = entityToThreads.get(ce).size();
// TODO: we are doing default initialisation of evaluators by setting it to null below, it is
// more appropriate to consider it as an argument for this method
Clue clue =
cluer.createClue(
fullAnswer,
(personTest
? ArchiveCluer.QuestionType.GUESS_CORRESPONDENT
: ArchiveCluer.QuestionType.FILL_IN_THE_BLANK),
null,
tabooCluesSet,
null,
intervalStart,
intervalEnd,
nSent,
archive);
if (clue != null) ci.clues = new Clue[] {clue};
if (ci.clues == null || ci.clues.length == 0 || clue == null) {
JSPHelper.log.warn("Did not find any clue for: " + fullAnswer);
} else {
// is the times value of the clue important?
questions.add(new MemoryQuestion(this, fullAnswer, clue, 1, lengthDescr));
nvalidclues++;
// makes sure that the clue with the same statement is not generated again
tabooCluesSet.add(clue.clue);
}
clueInfos[interval].add(ci);
}
log.info("Found valid clues for " + nvalidclues + " answers");
JSPHelper.log.info("Found valid clues for " + nvalidclues + " answers");
log.info("Top candidates are:");
for (MemoryQuestion mq : questions)
log.info(mq.correctAnswer + " times=" + mq.stats.nMessagesWithAnswer);
// sort q's by clue score
Collections.sort(questions);
// log.info("Based on clue score, top answers:");
// for (MemoryQuestion mq: questions)
// log.info (mq.correctAnswer + " times= clue=" + mq.clue.clue);
// now we have up to 2*N questions, sorted by cluescore.
// drop ones that are prefix/suffix of another, and cap to N
int prev_size = questions.size();
int new_size = questions.size();
// log.info ("#questions before prefix-suffix elim: " + prev_size + " after: " + new_size);
int count = 0;
for (MemoryQuestion mq : questions) {
mq.setQuestionNum(count++);
}
// log the questions as well, just in case we don't get to the final point due to user fatigue
// or crashes
logStats("questions.final", false);
}